diff options
Diffstat (limited to 'src/shared')
| -rw-r--r-- | src/shared/macro.h | 1 | ||||
| -rw-r--r-- | src/shared/util.c | 84 | ||||
| -rw-r--r-- | src/shared/util.h | 1 |
3 files changed, 39 insertions, 47 deletions
diff --git a/src/shared/macro.h b/src/shared/macro.h index df17617b1e..eb9a8c0a72 100644 --- a/src/shared/macro.h +++ b/src/shared/macro.h @@ -189,5 +189,6 @@ static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) { #define _cleanup_free_ __attribute__((cleanup(freep))) #define _cleanup_fclose_ __attribute__((cleanup(fclosep))) +#define _cleanup_close_ __attribute__((cleanup(closep))) #include "log.h" diff --git a/src/shared/util.c b/src/shared/util.c index 887cc6749e..7be0df2a2b 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -78,10 +78,10 @@ size_t page_size(void) { if (_likely_(pgsz > 0)) return pgsz; - assert_se((r = sysconf(_SC_PAGESIZE)) > 0); + r = sysconf(_SC_PAGESIZE); + assert(r > 0); pgsz = (size_t) r; - return pgsz; } @@ -223,10 +223,9 @@ bool startswith_no_case(const char *s, const char *prefix) { if (sl < pl) return false; - for(i = 0; i < pl; ++i) { + for(i = 0; i < pl; ++i) if (tolower(s[i]) != tolower(prefix[i])) return false; - } return true; } @@ -305,7 +304,8 @@ int parse_pid(const char *s, pid_t* ret_pid) { assert(s); assert(ret_pid); - if ((r = safe_atolu(s, &ul)) < 0) + r = safe_atolu(s, &ul); + if (r < 0) return r; pid = (pid_t) ul; @@ -328,7 +328,8 @@ int parse_uid(const char *s, uid_t* ret_uid) { assert(s); assert(ret_uid); - if ((r = safe_atolu(s, &ul)) < 0) + r = safe_atolu(s, &ul); + if (r < 0) return r; uid = (uid_t) ul; @@ -534,8 +535,7 @@ int get_parent_of_pid(pid_t pid, pid_t *_ppid) { } int get_starttime_of_pid(pid_t pid, unsigned long long *st) { - int r; - FILE *f; + _cleanup_fclose_ FILE *f = NULL; char fn[PATH_MAX], line[LINE_MAX], *p; assert(pid > 0); @@ -544,22 +544,23 @@ int get_starttime_of_pid(pid_t pid, unsigned long long *st) { assert_se(snprintf(fn, sizeof(fn)-1, "/proc/%lu/stat", (unsigned long) pid) < (int) (sizeof(fn)-1)); char_array_0(fn); - if (!(f = fopen(fn, "re"))) + f = fopen(fn, "re"); + if (!f) return -errno; - if (!(fgets(line, sizeof(line), f))) { - r = feof(f) ? -EIO : -errno; - fclose(f); - return r; - } + if (!fgets(line, sizeof(line), f)) { + if (ferror(f)) + return -errno; - fclose(f); + 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 */ - if (!(p = strrchr(line, ')'))) + p = strrchr(line, ')'); + if (!p) return -EIO; p++; @@ -592,8 +593,7 @@ int get_starttime_of_pid(pid_t pid, unsigned long long *st) { } int write_one_line_file(const char *fn, const char *line) { - FILE *f; - int r; + _cleanup_fclose_ FILE *f = NULL; assert(fn); assert(line); @@ -603,27 +603,18 @@ int write_one_line_file(const char *fn, const char *line) { return -errno; errno = 0; - if (fputs(line, f) < 0) { - r = -errno; - goto finish; - } + if (fputs(line, f) < 0) + return errno ? -errno : -EIO; if (!endswith(line, "\n")) fputc('\n', f); fflush(f); - if (ferror(f)) { - if (errno != 0) - r = -errno; - else - r = -EIO; - } else - r = 0; + if (ferror(f)) + return errno ? -errno : -EIO; -finish: - fclose(f); - return r; + return 0; } int fchmod_umask(int fd, mode_t m) { @@ -698,7 +689,7 @@ int read_one_line_file(const char *fn, char **line) { if (!fgets(t, sizeof(t), f)) { if (ferror(f)) - return -errno; + return errno ? -errno : -EIO; t[0] = 0; } @@ -5674,10 +5665,10 @@ int getenv_for_pid(pid_t pid, const char *field, char **_value) { } int can_sleep(const char *type) { - char *p, *w, *state; + char *w, *state; size_t l, k; - bool found = false; int r; + _cleanup_free_ char *p = NULL; assert(type); @@ -5686,16 +5677,11 @@ int can_sleep(const char *type) { 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; - FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) { - if (l == k && strncmp(w, type, l) == 0) { - found = true; - break; - } - } - - free(p); - return found; + return false; } bool is_valid_documentation_url(const char *url) { @@ -5744,7 +5730,7 @@ bool in_initrd(void) { } void warn_melody(void) { - int fd; + _cleanup_close_ int fd = -1; fd = open("/dev/console", O_WRONLY|O_CLOEXEC|O_NOCTTY); if (fd < 0) @@ -5762,7 +5748,6 @@ void warn_melody(void) { usleep(125*USEC_PER_MSEC); ioctl(fd, KIOCSOUND, 0); - close_nointr_nofail(fd); } int make_console_stdio(void) { @@ -5819,7 +5804,7 @@ int get_home_dir(char **_h) { errno = 0; p = getpwuid(u); if (!p) - return errno ? -errno : -ENOENT; + return errno ? -errno : -ESRCH; if (!path_is_absolute(p->pw_dir)) return -EINVAL; @@ -5887,3 +5872,8 @@ void fclosep(FILE **f) { if (*f) fclose(*f); } + +void closep(int *fd) { + if (*fd >= 0) + close_nointr_nofail(*fd); +} diff --git a/src/shared/util.h b/src/shared/util.h index 770a008223..90234eb27b 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -531,3 +531,4 @@ int get_home_dir(char **ret); void freep(void *p); void fclosep(FILE **f); +void closep(int *fd); |