diff options
Diffstat (limited to 'src/libudev')
| -rw-r--r-- | src/libudev/util.c | 2837 | ||||
| -rw-r--r-- | src/libudev/util.h | 145 |
2 files changed, 0 insertions, 2982 deletions
diff --git a/src/libudev/util.c b/src/libudev/util.c index 09c7033274..6c93d0ea97 100644 --- a/src/libudev/util.c +++ b/src/libudev/util.c @@ -242,45 +242,6 @@ char* startswith(const char *s, const char *prefix) { } } -char* startswith_no_case(const char *s, const char *prefix) { - const char *a, *b; - - assert(s); - assert(prefix); - - a = s, b = prefix; - for (;;) { - if (*b == 0) - return (char*) a; - if (tolower(*a) != tolower(*b)) - return NULL; - - a++, b++; - } -} - -bool first_word(const char *s, const char *word) { - size_t sl, wl; - - assert(s); - assert(word); - - sl = strlen(s); - wl = strlen(word); - - if (sl < wl) - return false; - - if (wl == 0) - return true; - - if (memcmp(s, word, wl) != 0) - return false; - - return s[wl] == 0 || - strchr(WHITESPACE, s[wl]); -} - int close_nointr(int fd) { int r; @@ -312,15 +273,6 @@ void close_nointr_nofail(int fd) { assert_se(close_nointr(fd) == 0); } -void close_many(const int fds[], unsigned n_fd) { - unsigned i; - - assert(fds || n_fd <= 0); - - for (i = 0; i < n_fd; i++) - close_nointr_nofail(fds[i]); -} - int parse_boolean(const char *v) { assert(v); @@ -332,30 +284,6 @@ int parse_boolean(const char *v) { return -EINVAL; } -int parse_pid(const char *s, pid_t* ret_pid) { - unsigned long ul = 0; - pid_t pid; - int r; - - assert(s); - assert(ret_pid); - - r = safe_atolu(s, &ul); - if (r < 0) - return r; - - pid = (pid_t) ul; - - if ((unsigned long) pid != ul) - return -ERANGE; - - if (pid <= 0) - return -ERANGE; - - *ret_pid = pid; - return 0; -} - int parse_uid(const char *s, uid_t* ret_uid) { unsigned long ul = 0; uid_t uid; @@ -524,116 +452,6 @@ char *split_quoted(const char *c, size_t *l, char **state) { return (char*) current; } -int get_parent_of_pid(pid_t pid, pid_t *_ppid) { - int r; - _cleanup_fclose_ FILE *f = NULL; - char line[LINE_MAX]; - long unsigned ppid; - const char *p; - - assert(pid >= 0); - assert(_ppid); - - if (pid == 0) { - *_ppid = getppid(); - return 0; - } - - p = procfs_file_alloca(pid, "stat"); - f = fopen(p, "re"); - if (!f) - return -errno; - - if (!fgets(line, sizeof(line), f)) { - r = feof(f) ? -EIO : -errno; - return r; - } - - /* Let's skip the pid and comm fields. The latter is enclosed - * in () but does not escape any () in its value, so let's - * skip over it manually */ - - p = strrchr(line, ')'); - if (!p) - return -EIO; - - p++; - - if (sscanf(p, " " - "%*c " /* state */ - "%lu ", /* ppid */ - &ppid) != 1) - return -EIO; - - if ((long unsigned) (pid_t) ppid != ppid) - return -ERANGE; - - *_ppid = (pid_t) ppid; - - return 0; -} - -int get_starttime_of_pid(pid_t pid, unsigned long long *st) { - _cleanup_fclose_ FILE *f = NULL; - char line[LINE_MAX]; - const char *p; - - assert(pid >= 0); - assert(st); - - if (pid == 0) - p = "/proc/self/stat"; - else - p = procfs_file_alloca(pid, "stat"); - - f = fopen(p, "re"); - if (!f) - return -errno; - - if (!fgets(line, sizeof(line), f)) { - if (ferror(f)) - return -errno; - - return -EIO; - } - - /* Let's skip the pid and comm fields. The latter is enclosed - * in () but does not escape any () in its value, so let's - * skip over it manually */ - - p = strrchr(line, ')'); - if (!p) - return -EIO; - - p++; - - if (sscanf(p, " " - "%*c " /* state */ - "%*d " /* ppid */ - "%*d " /* pgrp */ - "%*d " /* session */ - "%*d " /* tty_nr */ - "%*d " /* tpgid */ - "%*u " /* flags */ - "%*u " /* minflt */ - "%*u " /* cminflt */ - "%*u " /* majflt */ - "%*u " /* cmajflt */ - "%*u " /* utime */ - "%*u " /* stime */ - "%*d " /* cutime */ - "%*d " /* cstime */ - "%*d " /* priority */ - "%*d " /* nice */ - "%*d " /* num_threads */ - "%*d " /* itrealvalue */ - "%llu " /* starttime */, - st) != 1) - return -EIO; - - return 0; -} - int write_one_line_file(const char *fn, const char *line) { _cleanup_fclose_ FILE *f = NULL; @@ -670,53 +488,6 @@ int fchmod_umask(int fd, mode_t m) { return r; } -int write_one_line_file_atomic(const char *fn, const char *line) { - FILE *f; - int r; - char *p; - - assert(fn); - assert(line); - - r = fopen_temporary(fn, &f, &p); - if (r < 0) - return r; - - fchmod_umask(fileno(f), 0644); - - errno = 0; - if (fputs(line, f) < 0) { - r = -errno; - goto finish; - } - - if (!endswith(line, "\n")) - fputc('\n', f); - - fflush(f); - - if (ferror(f)) { - if (errno != 0) - r = -errno; - else - r = -EIO; - } else { - if (rename(p, fn) < 0) - r = -errno; - else - r = 0; - } - -finish: - if (r < 0) - unlink(p); - - fclose(f); - free(p); - - return r; -} - int read_one_line_file(const char *fn, char **line) { _cleanup_fclose_ FILE *f = NULL; char t[LINE_MAX], *c; @@ -882,111 +653,6 @@ fail: return r; } -int load_env_file( - const char *fname, - char ***rl) { - - FILE *f; - char **m = NULL; - int r; - - assert(fname); - assert(rl); - - if (!(f = fopen(fname, "re"))) - return -errno; - - while (!feof(f)) { - char l[LINE_MAX], *p, *u; - char **t; - - if (!fgets(l, sizeof(l), f)) { - if (feof(f)) - break; - - r = -errno; - goto finish; - } - - p = strstrip(l); - - if (!*p) - continue; - - if (strchr(COMMENTS, *p)) - continue; - - if (!(u = normalize_env_assignment(p))) { - r = log_oom(); - goto finish; - } - - t = strv_append(m, u); - free(u); - - if (!t) { - r = log_oom(); - goto finish; - } - - strv_free(m); - m = t; - } - - r = 0; - - *rl = m; - m = NULL; - -finish: - if (f) - fclose(f); - - strv_free(m); - - return r; -} - -int write_env_file(const char *fname, char **l) { - char **i, *p; - FILE *f; - int r; - - r = fopen_temporary(fname, &f, &p); - if (r < 0) - return r; - - fchmod_umask(fileno(f), 0644); - - errno = 0; - STRV_FOREACH(i, l) { - fputs(*i, f); - fputc('\n', f); - } - - fflush(f); - - if (ferror(f)) { - if (errno != 0) - r = -errno; - else - r = -EIO; - } else { - if (rename(p, fname) < 0) - r = -errno; - else - r = 0; - } - - if (r < 0) - unlink(p); - - fclose(f); - free(p); - - return r; -} - char *truncate_nl(char *s) { assert(s); @@ -1013,143 +679,6 @@ int get_process_comm(pid_t pid, char **name) { return r; } -int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) { - char *r, *k; - int c; - bool space = false; - size_t left; - FILE *f; - - assert(max_length > 0); - assert(line); - - if (pid == 0) - f = fopen("/proc/self/cmdline", "re"); - else { - char *p; - if (asprintf(&p, "/proc/%lu/cmdline", (unsigned long) pid) < 0) - return -ENOMEM; - - f = fopen(p, "re"); - free(p); - } - - if (!f) - return -errno; - - r = new(char, max_length); - if (!r) { - fclose(f); - return -ENOMEM; - } - - k = r; - left = max_length; - while ((c = getc(f)) != EOF) { - - if (isprint(c)) { - if (space) { - if (left <= 4) - break; - - *(k++) = ' '; - left--; - space = false; - } - - if (left <= 4) - break; - - *(k++) = (char) c; - left--; - } else - space = true; - } - - if (left <= 4) { - size_t n = MIN(left-1, 3U); - memcpy(k, "...", n); - k[n] = 0; - } else - *k = 0; - - fclose(f); - - /* Kernel threads have no argv[] */ - if (r[0] == 0) { - char *t; - int h; - - free(r); - - if (!comm_fallback) - return -ENOENT; - - h = get_process_comm(pid, &t); - if (h < 0) - return h; - - r = strjoin("[", t, "]", NULL); - free(t); - - if (!r) - return -ENOMEM; - } - - *line = r; - return 0; -} - -int is_kernel_thread(pid_t pid) { - char *p; - size_t count; - char c; - bool eof; - FILE *f; - - if (pid == 0) - return 0; - - if (asprintf(&p, "/proc/%lu/cmdline", (unsigned long) pid) < 0) - return -ENOMEM; - - f = fopen(p, "re"); - free(p); - - if (!f) - return -errno; - - count = fread(&c, 1, 1, f); - eof = feof(f); - fclose(f); - - /* Kernel threads have an empty cmdline */ - - if (count <= 0) - return eof ? 1 : -errno; - - return 0; -} - -int get_process_exe(pid_t pid, char **name) { - int r; - - assert(name); - - if (pid == 0) - r = readlink_malloc("/proc/self/exe", name); - else { - char *p; - if (asprintf(&p, "/proc/%lu/exe", (unsigned long) pid) < 0) - return -ENOMEM; - - r = readlink_malloc(p, name); - free(p); - } - - return r; -} - static int get_process_id(pid_t pid, const char *field, uid_t *uid) { _cleanup_fclose_ FILE *f = NULL; char line[LINE_MAX]; @@ -1184,15 +713,6 @@ static int get_process_id(pid_t pid, const char *field, uid_t *uid) { return -EIO; } -int get_process_uid(pid_t pid, uid_t *uid) { - return get_process_id(pid, "Uid:", uid); -} - -int get_process_gid(pid_t pid, gid_t *gid) { - assert_cc(sizeof(uid_t) == sizeof(gid_t)); - return get_process_id(pid, "Gid:", gid); -} - char *strnappend(const char *s, const char *suffix, size_t b) { size_t a; char *r; @@ -1278,51 +798,6 @@ int readlink_and_make_absolute(const char *p, char **r) { return 0; } -int readlink_and_canonicalize(const char *p, char **r) { - char *t, *s; - int j; - - assert(p); - assert(r); - - j = readlink_and_make_absolute(p, &t); - if (j < 0) - return j; - - s = canonicalize_file_name(t); - if (s) { - free(t); - *r = s; - } else - *r = t; - - path_kill_slashes(*r); - - return 0; -} - -int reset_all_signal_handlers(void) { - int sig; - - for (sig = 1; sig < _NSIG; sig++) { - struct sigaction sa = { - .sa_handler = SIG_DFL, - .sa_flags = SA_RESTART, - }; - - if (sig == SIGKILL || sig == SIGSTOP) - continue; - - /* On Linux the first two RT signals are reserved by - * glibc, and sigaction() will return EINVAL for them. */ - if ((sigaction(sig, &sa, NULL) < 0)) - if (errno != EINVAL) - return -errno; - } - - return 0; -} - char *strstrip(char *s) { char *e; @@ -1340,36 +815,6 @@ char *strstrip(char *s) { return s; } -char *delete_chars(char *s, const char *bad) { - char *f, *t; - - /* Drops all whitespace, regardless where in the string */ - - for (f = s, t = s; *f; f++) { - if (strchr(bad, *f)) - continue; - - *(t++) = *f; - } - - *t = 0; - - return s; -} - -bool in_charset(const char *s, const char* charset) { - const char *i; - - assert(s); - assert(charset); - - for (i = s; *i; i++) - if (!strchr(charset, *i)) - return false; - - return true; -} - char *file_in_same_dir(const char *path, const char *filename) { char *e, *r; size_t k; @@ -1397,52 +842,6 @@ char *file_in_same_dir(const char *path, const char *filename) { return r; } -int rmdir_parents(const char *path, const char *stop) { - size_t l; - int r = 0; - - assert(path); - assert(stop); - - l = strlen(path); - - /* Skip trailing slashes */ - while (l > 0 && path[l-1] == '/') - l--; - - while (l > 0) { - char *t; - - /* Skip last component */ - while (l > 0 && path[l-1] != '/') - l--; - - /* Skip trailing slashes */ - while (l > 0 && path[l-1] == '/') - l--; - - if (l <= 0) - break; - - if (!(t = strndup(path, l))) - return -ENOMEM; - - if (path_startswith(stop, t)) { - free(t); - return 0; - } - - r = rmdir(t); - free(t); - - if (r < 0) - if (errno != ENOENT) - return -errno; - } - - return 0; -} - char hexchar(int x) { static const char table[16] = "0123456789abcdef"; @@ -1475,94 +874,6 @@ int unoctchar(char c) { return -1; } -char decchar(int x) { - return '0' + (x % 10); -} - -int undecchar(char c) { - - if (c >= '0' && c <= '9') - return c - '0'; - - return -1; -} - -char *cescape(const char *s) { - char *r, *t; - const char *f; - - assert(s); - - /* Does C style string escaping. */ - - r = new(char, strlen(s)*4 + 1); - if (!r) - return NULL; - - for (f = s, t = r; *f; f++) - - switch (*f) { - - case '\a': - *(t++) = '\\'; - *(t++) = 'a'; - break; - case '\b': - *(t++) = '\\'; - *(t++) = 'b'; - break; - case '\f': - *(t++) = '\\'; - *(t++) = 'f'; - break; - case '\n': - *(t++) = '\\'; - *(t++) = 'n'; - break; - case '\r': - *(t++) = '\\'; - *(t++) = 'r'; - break; - case '\t': - *(t++) = '\\'; - *(t++) = 't'; - break; - case '\v': - *(t++) = '\\'; - *(t++) = 'v'; - break; - case '\\': - *(t++) = '\\'; - *(t++) = '\\'; - break; - case '"': - *(t++) = '\\'; - *(t++) = '"'; - break; - case '\'': - *(t++) = '\\'; - *(t++) = '\''; - break; - - default: - /* For special chars we prefer octal over - * hexadecimal encoding, simply because glib's - * g_strescape() does the same */ - if ((*f < ' ') || (*f >= 127)) { - *(t++) = '\\'; - *(t++) = octchar((unsigned char) *f >> 6); - *(t++) = octchar((unsigned char) *f >> 3); - *(t++) = octchar((unsigned char) *f); - } else - *(t++) = *f; - break; - } - - *t = 0; - - return r; -} - char *cunescape_length_with_prefix(const char *s, size_t length, const char *prefix) { char *r, *t; const char *f; @@ -1731,43 +1042,6 @@ char *xescape(const char *s, const char *bad) { return r; } -char *bus_path_escape(const char *s) { - char *r, *t; - const char *f; - - assert(s); - - /* Escapes all chars that D-Bus' object path cannot deal - * with. Can be reverse with bus_path_unescape(). We special - * case the empty string. */ - - if (*s == 0) - return strdup("_"); - - r = new(char, strlen(s)*3 + 1); - if (!r) - return NULL; - - for (f = s, t = r; *f; f++) { - - /* Escape everything that is not a-zA-Z0-9. We also - * escape 0-9 if it's the first character */ - - if (!(*f >= 'A' && *f <= 'Z') && - !(*f >= 'a' && *f <= 'z') && - !(f > s && *f >= '0' && *f <= '9')) { - *(t++) = '_'; - *(t++) = hexchar(*f >> 4); - *(t++) = hexchar(*f); - } else - *(t++) = *f; - } - - *t = 0; - - return r; -} - char *bus_path_unescape(const char *f) { char *r, *t; @@ -1803,18 +1077,6 @@ char *bus_path_unescape(const char *f) { return r; } -char *ascii_strlower(char *t) { - char *p; - - assert(t); - - for (p = t; *p; p++) - if (*p >= 'A' && *p <= 'Z') - *p = *p - 'A' + 'a'; - - return t; -} - _pure_ static bool ignore_file_allow_backup(const char *filename) { assert(filename); @@ -1840,44 +1102,6 @@ bool ignore_file(const char *filename) { return ignore_file_allow_backup(filename); } -int fd_nonblock(int fd, bool nonblock) { - int flags; - - assert(fd >= 0); - - if ((flags = fcntl(fd, F_GETFL, 0)) < 0) - return -errno; - - if (nonblock) - flags |= O_NONBLOCK; - else - flags &= ~O_NONBLOCK; - - if (fcntl(fd, F_SETFL, flags) < 0) - return -errno; - - return 0; -} - -int fd_cloexec(int fd, bool cloexec) { - int flags; - - assert(fd >= 0); - - if ((flags = fcntl(fd, F_GETFD, 0)) < 0) - return -errno; - - if (cloexec) - flags |= FD_CLOEXEC; - else - flags &= ~FD_CLOEXEC; - - if (fcntl(fd, F_SETFD, flags) < 0) - return -errno; - - return 0; -} - _pure_ static bool fd_in_set(int fd, const int fdset[], unsigned n_fdset) { unsigned i; @@ -1950,17 +1174,6 @@ int close_all_fds(const int except[], unsigned n_except) { return r; } -bool chars_intersect(const char *a, const char *b) { - const char *p; - - /* Returns true if any of the chars in a are in b. */ - for (p = a; *p; p++) - if (strchr(b, *p)) - return true; - - return false; -} - char *format_timestamp(char *buf, size_t l, usec_t t) { struct tm tm; time_t sec; @@ -1979,63 +1192,6 @@ char *format_timestamp(char *buf, size_t l, usec_t t) { return buf; } -char *format_timestamp_pretty(char *buf, size_t l, usec_t t) { - usec_t n, d; - - n = now(CLOCK_REALTIME); - - if (t <= 0 || t > n || t + USEC_PER_DAY*7 <= t) - return NULL; - - d = n - t; - - if (d >= USEC_PER_YEAR) - snprintf(buf, l, "%llu years and %llu months ago", - (unsigned long long) (d / USEC_PER_YEAR), - (unsigned long long) ((d % USEC_PER_YEAR) / USEC_PER_MONTH)); - else if (d >= USEC_PER_MONTH) - snprintf(buf, l, "%llu months and %llu days ago", - (unsigned long long) (d / USEC_PER_MONTH), - (unsigned long long) ((d % USEC_PER_MONTH) / USEC_PER_DAY)); - else if (d >= USEC_PER_WEEK) - snprintf(buf, l, "%llu weeks and %llu days ago", - (unsigned long long) (d / USEC_PER_WEEK), - (unsigned long long) ((d % USEC_PER_WEEK) / USEC_PER_DAY)); - else if (d >= 2*USEC_PER_DAY) - snprintf(buf, l, "%llu days ago", (unsigned long long) (d / USEC_PER_DAY)); - else if (d >= 25*USEC_PER_HOUR) - snprintf(buf, l, "1 day and %lluh ago", - (unsigned long long) ((d - USEC_PER_DAY) / USEC_PER_HOUR)); - else if (d >= 6*USEC_PER_HOUR) - snprintf(buf, l, "%lluh ago", - (unsigned long long) (d / USEC_PER_HOUR)); - else if (d >= USEC_PER_HOUR) - snprintf(buf, l, "%lluh %llumin ago", - (unsigned long long) (d / USEC_PER_HOUR), - (unsigned long long) ((d % USEC_PER_HOUR) / USEC_PER_MINUTE)); - else if (d >= 5*USEC_PER_MINUTE) - snprintf(buf, l, "%llumin ago", - (unsigned long long) (d / USEC_PER_MINUTE)); - else if (d >= USEC_PER_MINUTE) - snprintf(buf, l, "%llumin %llus ago", - (unsigned long long) (d / USEC_PER_MINUTE), - (unsigned long long) ((d % USEC_PER_MINUTE) / USEC_PER_SEC)); - else if (d >= USEC_PER_SEC) - snprintf(buf, l, "%llus ago", - (unsigned long long) (d / USEC_PER_SEC)); - else if (d >= USEC_PER_MSEC) - snprintf(buf, l, "%llums ago", - (unsigned long long) (d / USEC_PER_MSEC)); - else if (d > 0) - snprintf(buf, l, "%lluus ago", - (unsigned long long) d); - else - snprintf(buf, l, "now"); - - buf[l-1] = 0; - return buf; -} - char *format_timespan(char *buf, size_t l, usec_t t) { static const struct { const char *suffix; @@ -2091,44 +1247,6 @@ char *format_timespan(char *buf, size_t l, usec_t t) { return buf; } -bool fstype_is_network(const char *fstype) { - static const char table[] = - "cifs\0" - "smbfs\0" - "ncpfs\0" - "nfs\0" - "nfs4\0" - "gfs\0" - "gfs2\0"; - - return nulstr_contains(table, fstype); -} - -int chvt(int vt) { - _cleanup_close_ int fd; - - fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return -errno; - - if (vt < 0) { - int tiocl[2] = { - TIOCL_GETKMSGREDIRECT, - 0 - }; - - if (ioctl(fd, TIOCLINUX, tiocl) < 0) - return -errno; - - vt = tiocl[0] <= 0 ? 1 : tiocl[0]; - } - - if (ioctl(fd, VT_ACTIVATE, vt) < 0) - return -errno; - - return 0; -} - int read_one_char(FILE *f, char *ret, usec_t t, bool *need_nl) { struct termios old_termios, new_termios; char c; @@ -2563,102 +1681,6 @@ fail: return r; } -int release_terminal(void) { - int r = 0; - struct sigaction sa_old, sa_new = { - .sa_handler = SIG_IGN, - .sa_flags = SA_RESTART, - }; - _cleanup_close_ int fd; - - fd = open("/dev/tty", O_RDWR|O_NOCTTY|O_NDELAY|O_CLOEXEC); - if (fd < 0) - return -errno; - - /* Temporarily ignore SIGHUP, so that we don't get SIGHUP'ed - * by our own TIOCNOTTY */ - assert_se(sigaction(SIGHUP, &sa_new, &sa_old) == 0); - - if (ioctl(fd, TIOCNOTTY) < 0) - r = -errno; - - assert_se(sigaction(SIGHUP, &sa_old, NULL) == 0); - - return r; -} - -int sigaction_many(const struct sigaction *sa, ...) { - va_list ap; - int r = 0, sig; - - va_start(ap, sa); - while ((sig = va_arg(ap, int)) > 0) - if (sigaction(sig, sa, NULL) < 0) - r = -errno; - va_end(ap); - - return r; -} - -int ignore_signals(int sig, ...) { - struct sigaction sa = { - .sa_handler = SIG_IGN, - .sa_flags = SA_RESTART, - }; - va_list ap; - int r = 0; - - - if (sigaction(sig, &sa, NULL) < 0) - r = -errno; - - va_start(ap, sig); - while ((sig = va_arg(ap, int)) > 0) - if (sigaction(sig, &sa, NULL) < 0) - r = -errno; - va_end(ap); - - return r; -} - -int default_signals(int sig, ...) { - struct sigaction sa = { - .sa_handler = SIG_DFL, - .sa_flags = SA_RESTART, - }; - va_list ap; - int r = 0; - - if (sigaction(sig, &sa, NULL) < 0) - r = -errno; - - va_start(ap, sig); - while ((sig = va_arg(ap, int)) > 0) - if (sigaction(sig, &sa, NULL) < 0) - r = -errno; - va_end(ap); - - return r; -} - -int close_pipe(int p[]) { - int a = 0, b = 0; - - assert(p); - - if (p[0] >= 0) { - a = close_nointr(p[0]); - p[0] = -1; - } - - if (p[1] >= 0) { - b = close_nointr(p[1]); - p[1] = -1; - } - - return a < 0 ? a : b; -} - ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll) { uint8_t *p; ssize_t n = 0; @@ -2832,144 +1854,6 @@ int parse_usec(const char *t, usec_t *usec) { return 0; } -int parse_nsec(const char *t, nsec_t *nsec) { - static const struct { - const char *suffix; - nsec_t nsec; - } table[] = { - { "seconds", NSEC_PER_SEC }, - { "second", NSEC_PER_SEC }, - { "sec", NSEC_PER_SEC }, - { "s", NSEC_PER_SEC }, - { "minutes", NSEC_PER_MINUTE }, - { "minute", NSEC_PER_MINUTE }, - { "min", NSEC_PER_MINUTE }, - { "months", NSEC_PER_MONTH }, - { "month", NSEC_PER_MONTH }, - { "msec", NSEC_PER_MSEC }, - { "ms", NSEC_PER_MSEC }, - { "m", NSEC_PER_MINUTE }, - { "hours", NSEC_PER_HOUR }, - { "hour", NSEC_PER_HOUR }, - { "hr", NSEC_PER_HOUR }, - { "h", NSEC_PER_HOUR }, - { "days", NSEC_PER_DAY }, - { "day", NSEC_PER_DAY }, - { "d", NSEC_PER_DAY }, - { "weeks", NSEC_PER_WEEK }, - { "week", NSEC_PER_WEEK }, - { "w", NSEC_PER_WEEK }, - { "years", NSEC_PER_YEAR }, - { "year", NSEC_PER_YEAR }, - { "y", NSEC_PER_YEAR }, - { "usec", NSEC_PER_USEC }, - { "us", NSEC_PER_USEC }, - { "nsec", 1ULL }, - { "ns", 1ULL }, - { "", 1ULL }, /* default is nsec */ - }; - - const char *p; - nsec_t r = 0; - - assert(t); - assert(nsec); - - p = t; - do { - long long l; - char *e; - unsigned i; - - errno = 0; - l = strtoll(p, &e, 10); - - if (errno != 0) - return -errno; - - if (l < 0) - return -ERANGE; - - if (e == p) - return -EINVAL; - - e += strspn(e, WHITESPACE); - - for (i = 0; i < ELEMENTSOF(table); i++) - if (startswith(e, table[i].suffix)) { - r += (nsec_t) l * table[i].nsec; - p = e + strlen(table[i].suffix); - break; - } - - if (i >= ELEMENTSOF(table)) - return -EINVAL; - - } while (*p != 0); - - *nsec = r; - - return 0; -} - -int parse_bytes(const char *t, off_t *bytes) { - static const struct { - const char *suffix; - off_t factor; - } table[] = { - { "B", 1 }, - { "K", 1024ULL }, - { "M", 1024ULL*1024ULL }, - { "G", 1024ULL*1024ULL*1024ULL }, - { "T", 1024ULL*1024ULL*1024ULL*1024ULL }, - { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL }, - { "E", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL*1024ULL }, - { "", 1 }, - }; - - const char *p; - off_t r = 0; - - assert(t); - assert(bytes); - - p = t; - do { - long long l; - char *e; - unsigned i; - - errno = 0; - l = strtoll(p, &e, 10); - - if (errno > 0) - return -errno; - - if (l < 0) - return -ERANGE; - - if (e == p) - return -EINVAL; - - e += strspn(e, WHITESPACE); - - for (i = 0; i < ELEMENTSOF(table); i++) - if (startswith(e, table[i].suffix)) { - r += (off_t) l * table[i].factor; - p = e + strlen(table[i].suffix); - break; - } - - if (i >= ELEMENTSOF(table)) - return -EINVAL; - - } while (*p != 0); - - *bytes = r; - - return 0; -} - int make_stdio(int fd) { int r, s, t; @@ -2990,50 +1874,6 @@ int make_stdio(int fd) { return 0; } -int make_null_stdio(void) { - int null_fd; - - null_fd = open("/dev/null", O_RDWR|O_NOCTTY); - if (null_fd < 0) - return -errno; - - return make_stdio(null_fd); -} - -bool is_device_path(const char *path) { - - /* Returns true on paths that refer to a device, either in - * sysfs or in /dev */ - - return - path_startswith(path, "/dev/") || - path_startswith(path, "/sys/"); -} - -int dir_is_empty(const char *path) { - _cleanup_closedir_ DIR *d; - int r; - - d = opendir(path); - if (!d) - return -errno; - - for (;;) { - struct dirent *de; - union dirent_storage buf; - - r = readdir_r(d, &buf.de, &de); - if (r > 0) - return -r; - - if (!de) - return 1; - - if (!ignore_file(de->d_name)) - return 0; - } -} - unsigned long long random_ull(void) { _cleanup_close_ int fd; uint64_t ull; @@ -3053,68 +1893,6 @@ fallback: return random() * RAND_MAX + random(); } -void rename_process(const char name[8]) { - assert(name); - - /* This is a like a poor man's setproctitle(). It changes the - * comm field, argv[0], and also the glibc's internally used - * name of the process. For the first one a limit of 16 chars - * applies, to the second one usually one of 10 (i.e. length - * of "/sbin/init"), to the third one one of 7 (i.e. length of - * "systemd"). If you pass a longer string it will be - * truncated */ - - prctl(PR_SET_NAME, name); - - if (program_invocation_name) - strncpy(program_invocation_name, name, strlen(program_invocation_name)); - - if (saved_argc > 0) { - int i; - - if (saved_argv[0]) - strncpy(saved_argv[0], name, strlen(saved_argv[0])); - - for (i = 1; i < saved_argc; i++) { - if (!saved_argv[i]) - break; - - memset(saved_argv[i], 0, strlen(saved_argv[i])); - } - } -} - -void sigset_add_many(sigset_t *ss, ...) { - va_list ap; - int sig; - - assert(ss); - - va_start(ap, ss); - while ((sig = va_arg(ap, int)) > 0) - assert_se(sigaddset(ss, sig) == 0); - va_end(ap); -} - -char* gethostname_malloc(void) { - struct utsname u; - - assert_se(uname(&u) >= 0); - - if (!isempty(u.nodename) && !streq(u.nodename, "(none)")) - return strdup(u.nodename); - - return strdup(u.sysname); -} - -bool hostname_is_set(void) { - struct utsname u; - - assert_se(uname(&u) >= 0); - - return !isempty(u.nodename) && !streq(u.nodename, "(none)"); -} - static char *lookup_uid(uid_t uid) { long bufsize; char *name; @@ -3142,28 +1920,6 @@ static char *lookup_uid(uid_t uid) { return name; } -char* getlogname_malloc(void) { - uid_t uid; - struct stat st; - - if (isatty(STDIN_FILENO) && fstat(STDIN_FILENO, &st) >= 0) - uid = st.st_uid; - else - uid = getuid(); - - return lookup_uid(uid); -} - -char *getusername_malloc(void) { - const char *e; - - e = getenv("USER"); - if (e) - return strdup(e); - - return lookup_uid(getuid()); -} - int getttyname_malloc(int fd, char **r) { char path[PATH_MAX], *c; int k; @@ -3184,23 +1940,6 @@ int getttyname_malloc(int fd, char **r) { return 0; } -int getttyname_harder(int fd, char **r) { - int k; - char *s; - - k = getttyname_malloc(fd, &s); - if (k < 0) - return k; - - if (streq(s, "tty")) { - free(s); - return get_ctty(0, NULL, r); - } - - *r = s; - return 0; -} - int get_ctty_devnr(pid_t pid, dev_t *d) { _cleanup_fclose_ FILE *f = NULL; char line[LINE_MAX], *p; @@ -3504,10 +2243,6 @@ int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky return rm_rf_internal(path, only_dirs, delete_root, honour_sticky, false); } -int rm_rf_dangerous(const char *path, bool only_dirs, bool delete_root, bool honour_sticky) { - return rm_rf_internal(path, only_dirs, delete_root, honour_sticky, true); -} - int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) { assert(path); @@ -3526,50 +2261,6 @@ int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) { return 0; } -int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid) { - assert(fd >= 0); - - /* Under the assumption that we are running privileged we - * first change the access mode and only then hand out - * ownership to avoid a window where access is too open. */ - - if (fchmod(fd, mode) < 0) - return -errno; - - if (fchown(fd, uid, gid) < 0) - return -errno; - - return 0; -} - -cpu_set_t* cpu_set_malloc(unsigned *ncpus) { - cpu_set_t *r; - unsigned n = 1024; - - /* Allocates the cpuset in the right size */ - - for (;;) { - if (!(r = CPU_ALLOC(n))) - return NULL; - - if (sched_getaffinity(0, CPU_ALLOC_SIZE(n), r) >= 0) { - CPU_ZERO_S(CPU_ALLOC_SIZE(n), r); - - if (ncpus) - *ncpus = n; - - return r; - } - - CPU_FREE(r); - - if (errno != EINVAL) - return NULL; - - n *= 2; - } -} - int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) { static const char status_indent[] = " "; /* "[" STATUS "] " */ _cleanup_free_ char *s = NULL; @@ -3648,23 +2339,6 @@ int status_printf(const char *status, bool ellipse, bool ephemeral, const char * return r; } -int status_welcome(void) { - int r; - _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; - - r = parse_env_file("/etc/os-release", NEWLINE, - "PRETTY_NAME", &pretty_name, - "ANSI_COLOR", &ansi_color, - NULL); - if (r < 0 && r != -ENOENT) - log_warning("Failed to read /etc/os-release: %s", strerror(-r)); - - return status_printf(NULL, false, false, - "\nWelcome to \x1B[%sm%s\x1B[0m!\n", - isempty(ansi_color) ? "1" : ansi_color, - isempty(pretty_name) ? "Linux" : pretty_name); -} - char *replace_env(const char *format, char **env) { enum { WORD, @@ -3741,65 +2415,6 @@ fail: return NULL; } -char **replace_env_argv(char **argv, char **env) { - char **r, **i; - unsigned k = 0, l = 0; - - l = strv_length(argv); - - if (!(r = new(char*, l+1))) - return NULL; - - STRV_FOREACH(i, argv) { - - /* If $FOO appears as single word, replace it by the split up variable */ - if ((*i)[0] == '$' && (*i)[1] != '{') { - char *e; - char **w, **m; - unsigned q; - - e = strv_env_get(env, *i+1); - if (e) { - - if (!(m = strv_split_quoted(e))) { - r[k] = NULL; - strv_free(r); - return NULL; - } - } else - m = NULL; - - q = strv_length(m); - l = l + q - 1; - - if (!(w = realloc(r, sizeof(char*) * (l+1)))) { - r[k] = NULL; - strv_free(r); - strv_free(m); - return NULL; - } - - r = w; - if (m) { - memcpy(r + k, m, q * sizeof(char*)); - free(m); - } - - k += q; - continue; - } - - /* If ${FOO} appears as part of a word, replace it by the variable as-is */ - if (!(r[k++] = replace_env(*i, env))) { - strv_free(r); - return NULL; - } - } - - r[k] = NULL; - return r; -} - int fd_columns(int fd) { struct winsize ws = {}; @@ -3868,12 +2483,6 @@ unsigned lines(void) { return cached_lines; } -/* intended to be used as a SIGWINCH sighandler */ -void columns_lines_cache_reset(int signum) { - cached_columns = 0; - cached_lines = 0; -} - bool on_tty(void) { static int cached_on_tty = -1; @@ -3883,21 +2492,6 @@ bool on_tty(void) { return cached_on_tty; } -int running_in_chroot(void) { - struct stat a = {}, b = {}; - - /* Only works as root */ - if (stat("/proc/1/root", &a) < 0) - return -errno; - - if (stat("/", &b) < 0) - return -errno; - - return - a.st_dev != b.st_dev || - a.st_ino != b.st_ino; -} - char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) { size_t x; char *r; @@ -4030,39 +2624,6 @@ int wait_for_terminate(pid_t pid, siginfo_t *status) { } } -int wait_for_terminate_and_warn(const char *name, pid_t pid) { - int r; - siginfo_t status; - - assert(name); - assert(pid > 1); - - r = wait_for_terminate(pid, &status); - if (r < 0) { - log_warning("Failed to wait for %s: %s", name, strerror(-r)); - return r; - } - - if (status.si_code == CLD_EXITED) { - if (status.si_status != 0) { - log_warning("%s failed with error code %i.", name, status.si_status); - return status.si_status; - } - - log_debug("%s succeeded.", name); - return 0; - - } else if (status.si_code == CLD_KILLED || - status.si_code == CLD_DUMPED) { - - log_warning("%s terminated by signal %s.", name, signal_to_string(status.si_status)); - return -EPROTO; - } - - log_warning("%s failed due to unknown reason.", name); - return -EPROTO; -} - _noreturn_ void freeze(void) { /* Make sure nobody waits for us on a socket anymore */ @@ -4097,64 +2658,6 @@ int null_or_empty_path(const char *fn) { return null_or_empty(&st); } -DIR *xopendirat(int fd, const char *name, int flags) { - int nfd; - DIR *d; - - nfd = openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|flags); - if (nfd < 0) - return NULL; - - d = fdopendir(nfd); - if (!d) { - close_nointr_nofail(nfd); - return NULL; - } - - return d; -} - -int signal_from_string_try_harder(const char *s) { - int signo; - assert(s); - - signo = signal_from_string(s); - if (signo <= 0) - if (startswith(s, "SIG")) - return signal_from_string(s+3); - - return signo; -} - -void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t) { - - assert(f); - assert(name); - assert(t); - - if (!dual_timestamp_is_set(t)) - return; - - fprintf(f, "%s=%llu %llu\n", - name, - (unsigned long long) t->realtime, - (unsigned long long) t->monotonic); -} - -void dual_timestamp_deserialize(const char *value, dual_timestamp *t) { - unsigned long long a, b; - - assert(value); - assert(t); - - if (sscanf(value, "%lli %llu", &a, &b) != 2) - log_debug("Failed to parse finish timestamp value %s", value); - else { - t->realtime = a; - t->monotonic = b; - } -} - static char *tag_to_udev_node(const char *tagvalue, const char *by) { char *dn, *t, *u; int r; @@ -4181,24 +2684,6 @@ static char *tag_to_udev_node(const char *tagvalue, const char *by) { return dn; } -char *fstab_node_to_udev_node(const char *p) { - assert(p); - - if (startswith(p, "LABEL=")) - return tag_to_udev_node(p+6, "label"); - - if (startswith(p, "UUID=")) - return tag_to_udev_node(p+5, "uuid"); - - if (startswith(p, "PARTUUID=")) - return tag_to_udev_node(p+9, "partuuid"); - - if (startswith(p, "PARTLABEL=")) - return tag_to_udev_node(p+10, "partlabel"); - - return strdup(p); -} - bool tty_is_vc(const char *tty) { assert(tty); @@ -4208,15 +2693,6 @@ bool tty_is_vc(const char *tty) { return vtnr_from_tty(tty) >= 0; } -bool tty_is_console(const char *tty) { - assert(tty); - - if (startswith(tty, "/dev/")) - tty += 5; - - return streq(tty, "console"); -} - int vtnr_from_tty(const char *tty) { int i, r; @@ -4285,12 +2761,6 @@ bool tty_is_vc_resolve(const char *tty) { return b; } -const char *default_term_for_tty(const char *tty) { - assert(tty); - - return tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt102"; -} - bool dirent_is_file(const struct dirent *de) { assert(de); @@ -4359,124 +2829,6 @@ int execute_command(const char *command, char *const argv[]) } } -void execute_directory(const char *directory, DIR *d, char *argv[]) { - DIR *_d = NULL; - struct dirent *de; - Hashmap *pids = NULL; - - assert(directory); - - /* Executes all binaries in a directory in parallel and - * waits for them to finish. */ - - if (!d) { - if (!(_d = opendir(directory))) { - - if (errno == ENOENT) - return; - - log_error("Failed to enumerate directory %s: %m", directory); - return; - } - - d = _d; - } - - if (!(pids = hashmap_new(trivial_hash_func, trivial_compare_func))) { - log_error("Failed to allocate set."); - goto finish; - } - - while ((de = readdir(d))) { - char *path; - pid_t pid; - int k; - - if (!dirent_is_file(de)) - continue; - - if (asprintf(&path, "%s/%s", directory, de->d_name) < 0) { - log_oom(); - continue; - } - - if ((pid = fork()) < 0) { - log_error("Failed to fork: %m"); - free(path); - continue; - } - - if (pid == 0) { - char *_argv[2]; - /* Child */ - - if (!argv) { - _argv[0] = path; - _argv[1] = NULL; - argv = _argv; - } else - argv[0] = path; - - execv(path, argv); - - log_error("Failed to execute %s: %m", path); - _exit(EXIT_FAILURE); - } - - log_debug("Spawned %s as %lu", path, (unsigned long) pid); - - if ((k = hashmap_put(pids, UINT_TO_PTR(pid), path)) < 0) { - log_error("Failed to add PID to set: %s", strerror(-k)); - free(path); - } - } - - while (!hashmap_isempty(pids)) { - pid_t pid = PTR_TO_UINT(hashmap_first_key(pids)); - siginfo_t si = {}; - char *path; - - if (waitid(P_PID, pid, &si, WEXITED) < 0) { - - if (errno == EINTR) - continue; - - log_error("waitid() failed: %m"); - goto finish; - } - - if ((path = hashmap_remove(pids, UINT_TO_PTR(si.si_pid)))) { - if (!is_clean_exit(si.si_code, si.si_status, NULL)) { - if (si.si_code == CLD_EXITED) - log_error("%s exited with exit status %i.", path, si.si_status); - else - log_error("%s terminated by signal %s.", path, signal_to_string(si.si_status)); - } else - log_debug("%s exited successfully.", path); - - free(path); - } - } - -finish: - if (_d) - closedir(_d); - - if (pids) - hashmap_free_free(pids); -} - -int kill_and_sigcont(pid_t pid, int sig) { - int r; - - r = kill(pid, sig) < 0 ? -errno : 0; - - if (r >= 0) - kill(pid, SIGCONT); - - return r; -} - bool nulstr_contains(const char*nulstr, const char *needle) { const char *i; @@ -4490,10 +2842,6 @@ bool nulstr_contains(const char*nulstr, const char *needle) { return false; } -bool plymouth_running(void) { - return access("/run/plymouth/pid", F_OK) >= 0; -} - char* strshorten(char *s, size_t l) { assert(s); @@ -4513,81 +2861,6 @@ static bool hostname_valid_char(char c) { c == '.'; } -bool hostname_is_valid(const char *s) { - const char *p; - bool dot; - - if (isempty(s)) - return false; - - for (p = s, dot = true; *p; p++) { - if (*p == '.') { - if (dot) - return false; - - dot = true; - } else { - if (!hostname_valid_char(*p)) - return false; - - dot = false; - } - } - - if (dot) - return false; - - if (p-s > HOST_NAME_MAX) - return false; - - return true; -} - -char* hostname_cleanup(char *s, bool lowercase) { - char *p, *d; - bool dot; - - for (p = s, d = s, dot = true; *p; p++) { - if (*p == '.') { - if (dot) - continue; - - *(d++) = '.'; - dot = true; - } else if (hostname_valid_char(*p)) { - *(d++) = lowercase ? tolower(*p) : *p; - dot = false; - } - - } - - if (dot && d > s) - d[-1] = 0; - else - *d = 0; - - strshorten(s, HOST_NAME_MAX); - - return s; -} - -int pipe_eof(int fd) { - int r; - struct pollfd pollfd = { - .fd = fd, - .events = POLLIN|POLLHUP, - }; - - r = poll(&pollfd, 1, 0); - if (r < 0) - return -errno; - - if (r == 0) - return 0; - - return pollfd.revents & POLLHUP; -} - int fd_wait_for_event(int fd, int event, usec_t t) { int r; struct pollfd pollfd = { @@ -4672,175 +2945,6 @@ int terminal_vhangup(const char *name) { return r; } -int vt_disallocate(const char *name) { - int fd, r; - unsigned u; - - /* Deallocate the VT if possible. If not possible - * (i.e. because it is the active one), at least clear it - * entirely (including the scrollback buffer) */ - - if (!startswith(name, "/dev/")) - return -EINVAL; - - if (!tty_is_vc(name)) { - /* So this is not a VT. I guess we cannot deallocate - * it then. But let's at least clear the screen */ - - fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return fd; - - loop_write(fd, - "\033[r" /* clear scrolling region */ - "\033[H" /* move home */ - "\033[2J", /* clear screen */ - 10, false); - close_nointr_nofail(fd); - - return 0; - } - - if (!startswith(name, "/dev/tty")) - return -EINVAL; - - r = safe_atou(name+8, &u); - if (r < 0) - return r; - - if (u <= 0) - return -EINVAL; - - /* Try to deallocate */ - fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return fd; - - r = ioctl(fd, VT_DISALLOCATE, u); - close_nointr_nofail(fd); - - if (r >= 0) - return 0; - - if (errno != EBUSY) - return -errno; - - /* Couldn't deallocate, so let's clear it fully with - * scrollback */ - fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return fd; - - loop_write(fd, - "\033[r" /* clear scrolling region */ - "\033[H" /* move home */ - "\033[3J", /* clear screen including scrollback, requires Linux 2.6.40 */ - 10, false); - close_nointr_nofail(fd); - - return 0; -} - -int copy_file(const char *from, const char *to) { - int r, fdf, fdt; - - assert(from); - assert(to); - - fdf = open(from, O_RDONLY|O_CLOEXEC|O_NOCTTY); - if (fdf < 0) - return -errno; - - fdt = open(to, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC|O_NOCTTY, 0644); - if (fdt < 0) { - close_nointr_nofail(fdf); - return -errno; - } - - for (;;) { - char buf[PIPE_BUF]; - ssize_t n, k; - - n = read(fdf, buf, sizeof(buf)); - if (n < 0) { - r = -errno; - - close_nointr_nofail(fdf); - close_nointr(fdt); - unlink(to); - - return r; - } - - if (n == 0) - break; - - errno = 0; - k = loop_write(fdt, buf, n, false); - if (n != k) { - r = k < 0 ? k : (errno ? -errno : -EIO); - - close_nointr_nofail(fdf); - close_nointr(fdt); - - unlink(to); - return r; - } - } - - close_nointr_nofail(fdf); - r = close_nointr(fdt); - - if (r < 0) { - unlink(to); - return r; - } - - return 0; -} - -int symlink_atomic(const char *from, const char *to) { - char *x; - _cleanup_free_ char *t; - const char *fn; - size_t k; - unsigned long long ull; - unsigned i; - int r; - - assert(from); - assert(to); - - t = new(char, strlen(to) + 1 + 16 + 1); - if (!t) - return -ENOMEM; - - fn = path_get_file_name(to); - k = fn-to; - memcpy(t, to, k); - t[k] = '.'; - x = stpcpy(t+k+1, fn); - - ull = random_ull(); - for (i = 0; i < 16; i++) { - *(x++) = hexchar(ull & 0xF); - ull >>= 4; - } - - *x = 0; - - if (symlink(from, t) < 0) - return -errno; - - if (rename(t, to) < 0) { - r = -errno; - unlink(t); - return r; - } - - return 0; -} - bool display_is_local(const char *display) { assert(display); @@ -4850,98 +2954,6 @@ bool display_is_local(const char *display) { display[1] <= '9'; } -int socket_from_display(const char *display, char **path) { - size_t k; - char *f, *c; - - assert(display); - assert(path); - - if (!display_is_local(display)) - return -EINVAL; - - k = strspn(display+1, "0123456789"); - - f = new(char, sizeof("/tmp/.X11-unix/X") + k); - if (!f) - return -ENOMEM; - - c = stpcpy(f, "/tmp/.X11-unix/X"); - memcpy(c, display+1, k); - c[k] = 0; - - *path = f; - - return 0; -} - -int get_user_creds( - const char **username, - uid_t *uid, gid_t *gid, - const char **home, - const char **shell) { - - struct passwd *p; - uid_t u; - - assert(username); - assert(*username); - - /* We enforce some special rules for uid=0: in order to avoid - * NSS lookups for root we hardcode its data. */ - - if (streq(*username, "root") || streq(*username, "0")) { - *username = "root"; - - if (uid) - *uid = 0; - - if (gid) - *gid = 0; - - if (home) - *home = "/root"; - - if (shell) - *shell = "/bin/sh"; - - return 0; - } - - if (parse_uid(*username, &u) >= 0) { - errno = 0; - p = getpwuid(u); - - /* If there are multiple users with the same id, make - * sure to leave $USER to the configured value instead - * of the first occurrence in the database. However if - * the uid was configured by a numeric uid, then let's - * pick the real username from /etc/passwd. */ - if (p) - *username = p->pw_name; - } else { - errno = 0; - p = getpwnam(*username); - } - - if (!p) - return errno > 0 ? -errno : -ESRCH; - - if (uid) - *uid = p->pw_uid; - - if (gid) - *gid = p->pw_gid; - - if (home) - *home = p->pw_dir; - - if (shell) - *shell = p->pw_shell; - - return 0; -} - int get_group_creds(const char **groupname, gid_t *gid) { struct group *g; gid_t id; @@ -5006,38 +3018,6 @@ int in_gid(gid_t gid) { return 0; } -int in_group(const char *name) { - int r; - gid_t gid; - - r = get_group_creds(&name, &gid); - if (r < 0) - return r; - - return in_gid(gid); -} - -int glob_exists(const char *path) { - _cleanup_globfree_ glob_t g = {}; - int r, k; - - assert(path); - - errno = 0; - k = glob(path, GLOB_NOSORT|GLOB_BRACE, NULL, &g); - - if (k == GLOB_NOMATCH) - r = 0; - else if (k == GLOB_NOSPACE) - r = -ENOMEM; - else if (k == 0) - r = !strv_isempty(g.gl_pathv); - else - r = errno ? -errno : -EIO; - - return r; -} - int dirent_ensure_type(DIR *d, struct dirent *de) { struct stat st; @@ -5063,103 +3043,6 @@ int dirent_ensure_type(DIR *d, struct dirent *de) { return 0; } -int in_search_path(const char *path, char **search) { - char **i, *parent; - int r; - - r = path_get_parent(path, &parent); - if (r < 0) - return r; - - r = 0; - - STRV_FOREACH(i, search) { - if (path_equal(parent, *i)) { - r = 1; - break; - } - } - - free(parent); - - return r; -} - -int get_files_in_directory(const char *path, char ***list) { - DIR *d; - int r = 0; - unsigned n = 0; - char **l = NULL; - - assert(path); - - /* Returns all files in a directory in *list, and the number - * of files as return value. If list is NULL returns only the - * number */ - - d = opendir(path); - if (!d) - return -errno; - - for (;;) { - struct dirent *de; - union dirent_storage buf; - int k; - - k = readdir_r(d, &buf.de, &de); - if (k != 0) { - r = -k; - goto finish; - } - - if (!de) - break; - - dirent_ensure_type(d, de); - - if (!dirent_is_file(de)) - continue; - - if (list) { - if ((unsigned) r >= n) { - char **t; - - n = MAX(16, 2*r); - t = realloc(l, sizeof(char*) * n); - if (!t) { - r = -ENOMEM; - goto finish; - } - - l = t; - } - - assert((unsigned) r < n); - - l[r] = strdup(de->d_name); - if (!l[r]) { - r = -ENOMEM; - goto finish; - } - - l[++r] = NULL; - } else - r++; - } - -finish: - if (d) - closedir(d); - - if (r >= 0) { - if (list) - *list = l; - } else - strv_free(l); - - return r; -} - char *strjoin(const char *x, ...) { va_list ap; size_t l; @@ -5226,66 +3109,6 @@ bool is_main_thread(void) { return cached > 0; } -int block_get_whole_disk(dev_t d, dev_t *ret) { - char *p, *s; - int r; - unsigned n, m; - - assert(ret); - - /* If it has a queue this is good enough for us */ - if (asprintf(&p, "/sys/dev/block/%u:%u/queue", major(d), minor(d)) < 0) - return -ENOMEM; - - r = access(p, F_OK); - free(p); - - if (r >= 0) { - *ret = d; - return 0; - } - - /* If it is a partition find the originating device */ - if (asprintf(&p, "/sys/dev/block/%u:%u/partition", major(d), minor(d)) < 0) - return -ENOMEM; - - r = access(p, F_OK); - free(p); - - if (r < 0) - return -ENOENT; - - /* Get parent dev_t */ - if (asprintf(&p, "/sys/dev/block/%u:%u/../dev", major(d), minor(d)) < 0) - return -ENOMEM; - - r = read_one_line_file(p, &s); - free(p); - - if (r < 0) - return r; - - r = sscanf(s, "%u:%u", &m, &n); - free(s); - - if (r != 2) - return -EINVAL; - - /* Only return this if it is really good enough for us. */ - if (asprintf(&p, "/sys/dev/block/%u:%u/queue", m, n) < 0) - return -ENOMEM; - - r = access(p, F_OK); - free(p); - - if (r >= 0) { - *ret = makedev(m, n); - return 0; - } - - return -ENOENT; -} - int file_is_priv_sticky(const char *p) { struct stat st; @@ -5472,90 +3295,6 @@ int signal_from_string(const char *s) { return -1; } -bool kexec_loaded(void) { - bool loaded = false; - char *s; - - if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) { - if (s[0] == '1') - loaded = true; - free(s); - } - return loaded; -} - -int strdup_or_null(const char *a, char **b) { - char *c; - - assert(b); - - if (!a) { - *b = NULL; - return 0; - } - - c = strdup(a); - if (!c) - return -ENOMEM; - - *b = c; - return 0; -} - -int prot_from_flags(int flags) { - - switch (flags & O_ACCMODE) { - - case O_RDONLY: - return PROT_READ; - - case O_WRONLY: - return PROT_WRITE; - - case O_RDWR: - return PROT_READ|PROT_WRITE; - - default: - return -EINVAL; - } -} - -char *format_bytes(char *buf, size_t l, off_t t) { - unsigned i; - - static const struct { - const char *suffix; - off_t factor; - } table[] = { - { "E", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL*1024ULL }, - { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL }, - { "T", 1024ULL*1024ULL*1024ULL*1024ULL }, - { "G", 1024ULL*1024ULL*1024ULL }, - { "M", 1024ULL*1024ULL }, - { "K", 1024ULL }, - }; - - for (i = 0; i < ELEMENTSOF(table); i++) { - - if (t >= table[i].factor) { - snprintf(buf, l, - "%llu.%llu%s", - (unsigned long long) (t / table[i].factor), - (unsigned long long) (((t*10ULL) / table[i].factor) % 10ULL), - table[i].suffix); - - goto finish; - } - } - - snprintf(buf, l, "%lluB", (unsigned long long) t); - -finish: - buf[l-1] = 0; - return buf; - -} - void* memdup(const void *p, size_t l) { void *r; @@ -5587,255 +3326,6 @@ int fd_inc_sndbuf(int fd, size_t n) { return 1; } -int fd_inc_rcvbuf(int fd, size_t n) { - int r, value; - socklen_t l = sizeof(value); - - r = getsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, &l); - if (r >= 0 && - l == sizeof(value) && - (size_t) value >= n*2) - return 0; - - value = (int) n; - r = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)); - if (r < 0) - return -errno; - - return 1; -} - -int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...) { - pid_t parent_pid, agent_pid; - int fd; - bool stdout_is_tty, stderr_is_tty; - unsigned n, i; - va_list ap; - char **l; - - assert(pid); - assert(path); - - parent_pid = getpid(); - - /* Spawns a temporary TTY agent, making sure it goes away when - * we go away */ - - agent_pid = fork(); - if (agent_pid < 0) - return -errno; - - if (agent_pid != 0) { - *pid = agent_pid; - return 0; - } - - /* In the child: - * - * Make sure the agent goes away when the parent dies */ - if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) - _exit(EXIT_FAILURE); - - /* Check whether our parent died before we were able - * to set the death signal */ - if (getppid() != parent_pid) - _exit(EXIT_SUCCESS); - - /* Don't leak fds to the agent */ - close_all_fds(except, n_except); - - stdout_is_tty = isatty(STDOUT_FILENO); - stderr_is_tty = isatty(STDERR_FILENO); - - if (!stdout_is_tty || !stderr_is_tty) { - /* Detach from stdout/stderr. and reopen - * /dev/tty for them. This is important to - * ensure that when systemctl is started via - * popen() or a similar call that expects to - * read EOF we actually do generate EOF and - * not delay this indefinitely by because we - * keep an unused copy of stdin around. */ - fd = open("/dev/tty", O_WRONLY); - if (fd < 0) { - log_error("Failed to open /dev/tty: %m"); - _exit(EXIT_FAILURE); - } - - if (!stdout_is_tty) - dup2(fd, STDOUT_FILENO); - - if (!stderr_is_tty) - dup2(fd, STDERR_FILENO); - - if (fd > 2) - close(fd); - } - - /* Count arguments */ - va_start(ap, path); - for (n = 0; va_arg(ap, char*); n++) - ; - va_end(ap); - - /* Allocate strv */ - l = alloca(sizeof(char *) * (n + 1)); - - /* Fill in arguments */ - va_start(ap, path); - for (i = 0; i <= n; i++) - l[i] = va_arg(ap, char*); - va_end(ap); - - execv(path, l); - _exit(EXIT_FAILURE); -} - -int setrlimit_closest(int resource, const struct rlimit *rlim) { - struct rlimit highest, fixed; - - assert(rlim); - - if (setrlimit(resource, rlim) >= 0) - return 0; - - if (errno != EPERM) - return -errno; - - /* So we failed to set the desired setrlimit, then let's try - * to get as close as we can */ - assert_se(getrlimit(resource, &highest) == 0); - - fixed.rlim_cur = MIN(rlim->rlim_cur, highest.rlim_max); - fixed.rlim_max = MIN(rlim->rlim_max, highest.rlim_max); - - if (setrlimit(resource, &fixed) < 0) - return -errno; - - return 0; -} - -int getenv_for_pid(pid_t pid, const char *field, char **_value) { - _cleanup_fclose_ FILE *f = NULL; - char *value = NULL; - int r; - bool done = false; - size_t l; - const char *path; - - assert(pid >= 0); - assert(field); - assert(_value); - - if (pid == 0) - path = "/proc/self/environ"; - else - path = procfs_file_alloca(pid, "environ"); - - f = fopen(path, "re"); - if (!f) - return -errno; - - l = strlen(field); - r = 0; - - do { - char line[LINE_MAX]; - unsigned i; - - for (i = 0; i < sizeof(line)-1; i++) { - int c; - - c = getc(f); - if (_unlikely_(c == EOF)) { - done = true; - break; - } else if (c == 0) - break; - - line[i] = c; - } - line[i] = 0; - - if (memcmp(line, field, l) == 0 && line[l] == '=') { - value = strdup(line + l + 1); - if (!value) - return -ENOMEM; - - r = 1; - break; - } - - } while (!done); - - *_value = value; - return r; -} - -int can_sleep(const char *type) { - char *w, *state; - size_t l, k; - int r; - _cleanup_free_ char *p = NULL; - - assert(type); - - r = read_one_line_file("/sys/power/state", &p); - if (r < 0) - return r == -ENOENT ? 0 : r; - - k = strlen(type); - FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) - if (l == k && memcmp(w, type, l) == 0) - return true; - - return false; -} - -int can_sleep_disk(const char *type) { - char *w, *state; - size_t l, k; - int r; - _cleanup_free_ char *p = NULL; - - assert(type); - - r = read_one_line_file("/sys/power/disk", &p); - if (r < 0) - return r == -ENOENT ? 0 : r; - - k = strlen(type); - FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) { - if (l == k && memcmp(w, type, l) == 0) - return true; - - if (l == k + 2 && w[0] == '[' && memcmp(w + 1, type, l - 2) == 0 && w[l-1] == ']') - return true; - } - - return false; -} - -bool is_valid_documentation_url(const char *url) { - assert(url); - - if (startswith(url, "http://") && url[7]) - return true; - - if (startswith(url, "https://") && url[8]) - return true; - - if (startswith(url, "file:") && url[5]) - return true; - - if (startswith(url, "info:") && url[5]) - return true; - - if (startswith(url, "man:") && url[4]) - return true; - - return false; -} - bool in_initrd(void) { static __thread int saved = -1; struct statfs s; @@ -5860,263 +3350,6 @@ bool in_initrd(void) { return saved; } -void warn_melody(void) { - _cleanup_close_ int fd = -1; - - fd = open("/dev/console", O_WRONLY|O_CLOEXEC|O_NOCTTY); - if (fd < 0) - return; - - /* Yeah, this is synchronous. Kinda sucks. But well... */ - - ioctl(fd, KIOCSOUND, (int)(1193180/440)); - usleep(125*USEC_PER_MSEC); - - ioctl(fd, KIOCSOUND, (int)(1193180/220)); - usleep(125*USEC_PER_MSEC); - - ioctl(fd, KIOCSOUND, (int)(1193180/220)); - usleep(125*USEC_PER_MSEC); - - ioctl(fd, KIOCSOUND, 0); -} - -int make_console_stdio(void) { - int fd, r; - - /* Make /dev/console the controlling terminal and stdin/stdout/stderr */ - - fd = acquire_terminal("/dev/console", false, true, true, (usec_t) -1); - if (fd < 0) { - log_error("Failed to acquire terminal: %s", strerror(-fd)); - return fd; - } - - r = make_stdio(fd); - if (r < 0) { - log_error("Failed to duplicate terminal fd: %s", strerror(-r)); - return r; - } - - return 0; -} - -int get_home_dir(char **_h) { - char *h; - const char *e; - uid_t u; - struct passwd *p; - - assert(_h); - - /* Take the user specified one */ - e = getenv("HOME"); - if (e) { - h = strdup(e); - if (!h) - return -ENOMEM; - - *_h = h; - return 0; - } - - /* Hardcode home directory for root to avoid NSS */ - u = getuid(); - if (u == 0) { - h = strdup("/root"); - if (!h) - return -ENOMEM; - - *_h = h; - return 0; - } - - /* Check the database... */ - errno = 0; - p = getpwuid(u); - if (!p) - return errno > 0 ? -errno : -ESRCH; - - if (!path_is_absolute(p->pw_dir)) - return -EINVAL; - - h = strdup(p->pw_dir); - if (!h) - return -ENOMEM; - - *_h = h; - return 0; -} - -bool filename_is_safe(const char *p) { - - if (isempty(p)) - return false; - - if (strchr(p, '/')) - return false; - - if (streq(p, ".")) - return false; - - if (streq(p, "..")) - return false; - - if (strlen(p) > FILENAME_MAX) - return false; - - return true; -} - -bool string_is_safe(const char *p) { - const char *t; - - assert(p); - - for (t = p; *t; t++) { - if (*t > 0 && *t < ' ') - return false; - - if (strchr("\\\"\'", *t)) - return false; - } - - return true; -} - -int parse_timestamp(const char *t, usec_t *usec) { - const char *k; - struct tm tm, copy; - time_t x; - usec_t plus = 0, minus = 0, ret; - int r; - - /* - * Allowed syntaxes: - * - * 2012-09-22 16:34:22 - * 2012-09-22 16:34 (seconds will be set to 0) - * 2012-09-22 (time will be set to 00:00:00) - * 16:34:22 (date will be set to today) - * 16:34 (date will be set to today, seconds to 0) - * now - * yesterday (time is set to 00:00:00) - * today (time is set to 00:00:00) - * tomorrow (time is set to 00:00:00) - * +5min - * -5days - * - */ - - assert(t); - assert(usec); - - x = time(NULL); - assert_se(localtime_r(&x, &tm)); - - if (streq(t, "now")) - goto finish; - - else if (streq(t, "today")) { - tm.tm_sec = tm.tm_min = tm.tm_hour = 0; - goto finish; - - } else if (streq(t, "yesterday")) { - tm.tm_mday --; - tm.tm_sec = tm.tm_min = tm.tm_hour = 0; - goto finish; - - } else if (streq(t, "tomorrow")) { - tm.tm_mday ++; - tm.tm_sec = tm.tm_min = tm.tm_hour = 0; - goto finish; - - } else if (t[0] == '+') { - - r = parse_usec(t+1, &plus); - if (r < 0) - return r; - - goto finish; - } else if (t[0] == '-') { - - r = parse_usec(t+1, &minus); - if (r < 0) - return r; - - goto finish; - } - - copy = tm; - k = strptime(t, "%y-%m-%d %H:%M:%S", &tm); - if (k && *k == 0) - goto finish; - - tm = copy; - k = strptime(t, "%Y-%m-%d %H:%M:%S", &tm); - if (k && *k == 0) - goto finish; - - tm = copy; - k = strptime(t, "%y-%m-%d %H:%M", &tm); - if (k && *k == 0) { - tm.tm_sec = 0; - goto finish; - } - - tm = copy; - k = strptime(t, "%Y-%m-%d %H:%M", &tm); - if (k && *k == 0) { - tm.tm_sec = 0; - goto finish; - } - - tm = copy; - k = strptime(t, "%y-%m-%d", &tm); - if (k && *k == 0) { - tm.tm_sec = tm.tm_min = tm.tm_hour = 0; - goto finish; - } - - tm = copy; - k = strptime(t, "%Y-%m-%d", &tm); - if (k && *k == 0) { - tm.tm_sec = tm.tm_min = tm.tm_hour = 0; - goto finish; - } - - tm = copy; - k = strptime(t, "%H:%M:%S", &tm); - if (k && *k == 0) - goto finish; - - tm = copy; - k = strptime(t, "%H:%M", &tm); - if (k && *k == 0) { - tm.tm_sec = 0; - goto finish; - } - - return -EINVAL; - -finish: - x = mktime(&tm); - if (x == (time_t) -1) - return -EINVAL; - - ret = (usec_t) x * USEC_PER_SEC; - - ret += plus; - if (ret > minus) - ret -= minus; - else - ret = 0; - - *usec = ret; - - return 0; -} - /* hey glibc, APIs with callbacks without a user pointer are so useless */ void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size, int (*compar) (const void *, const void *, void *), void *arg) { @@ -6179,73 +3412,3 @@ out: return (bool)cached_answer; } -const char *draw_special_char(DrawSpecialChar ch) { - static const char *draw_table[2][_DRAW_SPECIAL_CHAR_MAX] = { - /* UTF-8 */ { - [DRAW_TREE_VERT] = "\342\224\202 ", /* │ */ - [DRAW_TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */ - [DRAW_TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */ - [DRAW_TREE_SPACE] = " ", /* */ - [DRAW_TRIANGULAR_BULLET] = "\342\200\243 ", /* ‣ */ - }, - /* ASCII fallback */ { - [DRAW_TREE_VERT] = "| ", - [DRAW_TREE_BRANCH] = "|-", - [DRAW_TREE_RIGHT] = "`-", - [DRAW_TREE_SPACE] = " ", - [DRAW_TRIANGULAR_BULLET] = "> ", - } - }; - - return draw_table[!is_locale_utf8()][ch]; -} - -char *strreplace(const char *text, const char *old_string, const char *new_string) { - const char *f; - char *t, *r; - size_t l, old_len, new_len; - - assert(text); - assert(old_string); - assert(new_string); - - old_len = strlen(old_string); - new_len = strlen(new_string); - - l = strlen(text); - r = new(char, l+1); - if (!r) - return NULL; - - f = text; - t = r; - while (*f) { - char *a; - size_t d, nl; - - if (!startswith(f, old_string)) { - *(t++) = *(f++); - continue; - } - - d = t - r; - nl = l - old_len + new_len; - a = realloc(r, nl + 1); - if (!a) - goto oom; - - l = nl; - r = a; - t = r + d; - - t = stpcpy(t, new_string); - f += old_len; - } - - *t = 0; - return r; - -oom: - free(r); - return NULL; -} diff --git a/src/libudev/util.h b/src/libudev/util.h index fc58943b38..1cbbd82e94 100644 --- a/src/libudev/util.h +++ b/src/libudev/util.h @@ -148,19 +148,12 @@ static inline bool isempty(const char *p) { char *endswith(const char *s, const char *postfix) _pure_; char *startswith(const char *s, const char *prefix) _pure_; -char *startswith_no_case(const char *s, const char *prefix) _pure_; - -bool first_word(const char *s, const char *word) _pure_; int close_nointr(int fd); void close_nointr_nofail(int fd); -void close_many(const int fds[], unsigned n_fd); int parse_boolean(const char *v) _pure_; int parse_usec(const char *t, usec_t *usec); -int parse_nsec(const char *t, nsec_t *nsec); -int parse_bytes(const char *t, off_t *bytes); -int parse_pid(const char *s, pid_t* ret_pid); int parse_uid(const char *s, uid_t* ret_uid); #define parse_gid(s, ret_uid) parse_uid(s, ret_uid) @@ -222,77 +215,49 @@ char *split_quoted(const char *c, size_t *l, char **state); #define FOREACH_WORD_QUOTED(word, length, s, state) \ for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state))) -pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); -int get_starttime_of_pid(pid_t pid, unsigned long long *st); - int write_one_line_file(const char *fn, const char *line); -int write_one_line_file_atomic(const char *fn, const char *line); int read_one_line_file(const char *fn, char **line); int read_full_file(const char *fn, char **contents, size_t *size); int parse_env_file(const char *fname, const char *separator, ...) _sentinel_; -int load_env_file(const char *fname, char ***l); -int write_env_file(const char *fname, char **l); char *strappend(const char *s, const char *suffix); char *strnappend(const char *s, const char *suffix, size_t length); char *replace_env(const char *format, char **env); -char **replace_env_argv(char **argv, char **env); int readlink_malloc(const char *p, char **r); int readlink_and_make_absolute(const char *p, char **r); -int readlink_and_canonicalize(const char *p, char **r); - -int reset_all_signal_handlers(void); char *strstrip(char *s); -char *delete_chars(char *s, const char *bad); char *truncate_nl(char *s); char *file_in_same_dir(const char *path, const char *filename); -int rmdir_parents(const char *path, const char *stop); - int get_process_comm(pid_t pid, char **name); -int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line); -int get_process_exe(pid_t pid, char **name); -int get_process_uid(pid_t pid, uid_t *uid); -int get_process_gid(pid_t pid, gid_t *gid); char hexchar(int x) _const_; int unhexchar(char c) _const_; char octchar(int x) _const_; int unoctchar(char c) _const_; -char decchar(int x) _const_; -int undecchar(char c) _const_; -char *cescape(const char *s); char *cunescape(const char *s); char *cunescape_length(const char *s, size_t length); char *cunescape_length_with_prefix(const char *s, size_t length, const char *prefix); char *xescape(const char *s, const char *bad); -char *bus_path_escape(const char *s); char *bus_path_unescape(const char *s); -char *ascii_strlower(char *path); - bool dirent_is_file(const struct dirent *de) _pure_; bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) _pure_; bool ignore_file(const char *filename) _pure_; -bool chars_intersect(const char *a, const char *b) _pure_; - char *format_timestamp(char *buf, size_t l, usec_t t); -char *format_timestamp_pretty(char *buf, size_t l, usec_t t); char *format_timespan(char *buf, size_t l, usec_t t); int make_stdio(int fd); -int make_null_stdio(void); -int make_console_stdio(void); unsigned long long random_ull(void); @@ -350,15 +315,8 @@ unsigned long long random_ull(void); } \ struct __useless_struct_to_allow_trailing_semicolon__ -int fd_nonblock(int fd, bool nonblock); -int fd_cloexec(int fd, bool cloexec); - int close_all_fds(const int except[], unsigned n_except); -bool fstype_is_network(const char *fstype); - -int chvt(int vt); - int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl); int ask(char *ret, const char *replies, const char *text, ...) _printf_attr_(3, 4); @@ -367,66 +325,35 @@ int reset_terminal(const char *name); int open_terminal(const char *name, int mode); int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm, usec_t timeout); -int release_terminal(void); int flush_fd(int fd); -int ignore_signals(int sig, ...); -int default_signals(int sig, ...); -int sigaction_many(const struct sigaction *sa, ...); - -int close_pipe(int p[]); int fopen_temporary(const char *path, FILE **_f, char **_temp_path); ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); -bool is_device_path(const char *path); - -int dir_is_empty(const char *path); - -void rename_process(const char name[8]); - -void sigset_add_many(sigset_t *ss, ...); - -bool hostname_is_set(void); - -char* gethostname_malloc(void); -char* getlogname_malloc(void); -char* getusername_malloc(void); - int getttyname_malloc(int fd, char **r); -int getttyname_harder(int fd, char **r); int get_ctty_devnr(pid_t pid, dev_t *d); int get_ctty(pid_t, dev_t *_devnr, char **r); int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid); -int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid); int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev); int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev); int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky); -int rm_rf_dangerous(const char *path, bool only_dirs, bool delete_root, bool honour_sticky); - -int pipe_eof(int fd); - -cpu_set_t* cpu_set_malloc(unsigned *ncpus); int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_attr_(4,0); int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_attr_(4,5); -int status_welcome(void); int fd_columns(int fd); unsigned columns(void); int fd_lines(int fd); unsigned lines(void); -void columns_lines_cache_reset(int _unused_ signum); bool on_tty(void); -int running_in_chroot(void); - char *ellipsize(const char *s, size_t length, unsigned percent); char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent); @@ -436,80 +363,42 @@ char *unquote(const char *s, const char *quotes); char *normalize_env_assignment(const char *s); int wait_for_terminate(pid_t pid, siginfo_t *status); -int wait_for_terminate_and_warn(const char *name, pid_t pid); _noreturn_ void freeze(void); bool null_or_empty(struct stat *st) _pure_; int null_or_empty_path(const char *fn); -DIR *xopendirat(int dirfd, const char *name, int flags); - -void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t); -void dual_timestamp_deserialize(const char *value, dual_timestamp *t); - -char *fstab_node_to_udev_node(const char *p); - char *resolve_dev_console(char **active); bool tty_is_vc(const char *tty); bool tty_is_vc_resolve(const char *tty); -bool tty_is_console(const char *tty) _pure_; int vtnr_from_tty(const char *tty); -const char *default_term_for_tty(const char *tty); int execute_command(const char *command, char *const argv[]); -void execute_directory(const char *directory, DIR *_d, char *argv[]); - -int kill_and_sigcont(pid_t pid, int sig); bool nulstr_contains(const char*nulstr, const char *needle); -bool plymouth_running(void); - -bool hostname_is_valid(const char *s) _pure_; -char* hostname_cleanup(char *s, bool lowercase); - char* strshorten(char *s, size_t l); int terminal_vhangup_fd(int fd); int terminal_vhangup(const char *name); -int vt_disallocate(const char *name); - -int copy_file(const char *from, const char *to); - -int symlink_atomic(const char *from, const char *to); - int fchmod_umask(int fd, mode_t mode); bool display_is_local(const char *display) _pure_; -int socket_from_display(const char *display, char **path); -int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell); int get_group_creds(const char **groupname, gid_t *gid); int in_gid(gid_t gid); -int in_group(const char *name); - -int glob_exists(const char *path); int dirent_ensure_type(DIR *d, struct dirent *de); -int in_search_path(const char *path, char **search); -int get_files_in_directory(const char *path, char ***list); - char *strjoin(const char *x, ...) _sentinel_; bool is_main_thread(void); -bool in_charset(const char *s, const char* charset) _pure_; - -int block_get_whole_disk(dev_t d, dev_t *ret); - int file_is_priv_sticky(const char *p); -int strdup_or_null(const char *a, char **b); - #define NULSTR_FOREACH(i, l) \ for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1) @@ -540,43 +429,17 @@ int ip_tos_from_string(const char *s); const char *signal_to_string(int i) _const_; int signal_from_string(const char *s) _pure_; -int signal_from_string_try_harder(const char *s); - extern int saved_argc; extern char **saved_argv; -bool kexec_loaded(void); - -int prot_from_flags(int flags) _const_; - -char *format_bytes(char *buf, size_t l, off_t t); - int fd_wait_for_event(int fd, int event, usec_t timeout); void* memdup(const void *p, size_t l) _alloc_(2); -int is_kernel_thread(pid_t pid); - int fd_inc_sndbuf(int fd, size_t n); -int fd_inc_rcvbuf(int fd, size_t n); - -int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...); - -int setrlimit_closest(int resource, const struct rlimit *rlim); - -int getenv_for_pid(pid_t pid, const char *field, char **_value); - -int can_sleep(const char *type); -int can_sleep_disk(const char *type); - -bool is_valid_documentation_url(const char *url); bool in_initrd(void); -void warn_melody(void); - -int get_home_dir(char **ret); - static inline void freep(void *p) { free(*(void**) p); } @@ -627,11 +490,6 @@ _alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_ return memdup(p, a * b); } -bool filename_is_safe(const char *p) _pure_; -bool string_is_safe(const char *p) _pure_; - -int parse_timestamp(const char *t, usec_t *usec); - void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size, int (*compar) (const void *, const void *, void *), void *arg); @@ -646,9 +504,6 @@ typedef enum DrawSpecialChar { DRAW_TRIANGULAR_BULLET, _DRAW_SPECIAL_CHAR_MAX } DrawSpecialChar; -const char *draw_special_char(DrawSpecialChar ch); - -char *strreplace(const char *text, const char *old_string, const char *new_string); #define FOREACH_LINE(line, f, on_error) \ |