From 07630cea1f3a845c09309f197ac7c4f11edd3b62 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 24 Oct 2015 22:58:24 +0200 Subject: util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files. --- src/basic/btrfs-util.c | 14 +- src/basic/calendarspec.c | 1 + src/basic/cgroup-util.c | 1 + src/basic/clock-util.c | 5 +- src/basic/conf-files.c | 15 +- src/basic/copy.c | 3 +- src/basic/env-util.c | 3 +- src/basic/fdset.c | 3 +- src/basic/fileio.c | 1 + src/basic/hostname-util.c | 3 +- src/basic/json.c | 4 +- src/basic/locale-util.c | 6 +- src/basic/log.c | 24 +- src/basic/log.h | 7 +- src/basic/login-util.c | 3 +- src/basic/memfd-util.c | 14 +- src/basic/path-util.c | 17 +- src/basic/process-util.c | 1 + src/basic/rm-rf.c | 5 +- src/basic/signal-util.c | 2 + src/basic/socket-util.c | 19 +- src/basic/string-util.c | 767 ++++++++++++++++++++++++++++++++++++++++++++++ src/basic/string-util.h | 170 ++++++++++ src/basic/strv.c | 5 +- src/basic/terminal-util.c | 27 +- src/basic/time-util.c | 7 +- src/basic/unit-name.c | 7 +- src/basic/util.c | 744 +------------------------------------------- src/basic/util.h | 139 --------- src/basic/verbs.c | 1 + src/basic/virt.c | 7 +- src/basic/xml.c | 1 + 32 files changed, 1055 insertions(+), 971 deletions(-) create mode 100644 src/basic/string-util.c create mode 100644 src/basic/string-util.h (limited to 'src/basic') diff --git a/src/basic/btrfs-util.c b/src/basic/btrfs-util.c index f327c16a80..df7b959c12 100644 --- a/src/basic/btrfs-util.c +++ b/src/basic/btrfs-util.c @@ -20,22 +20,22 @@ ***/ #include -#include #include - +#include #ifdef HAVE_LINUX_BTRFS_H #include #endif +#include "btrfs-ctree.h" +#include "copy.h" +#include "fileio.h" +#include "macro.h" #include "missing.h" -#include "util.h" #include "path-util.h" -#include "macro.h" -#include "copy.h" #include "selinux-util.h" #include "smack-util.h" -#include "fileio.h" -#include "btrfs-ctree.h" +#include "string-util.h" +#include "util.h" #include "btrfs-util.h" /* WARNING: Be careful with file system ioctls! When we get an fd, we diff --git a/src/basic/calendarspec.c b/src/basic/calendarspec.c index a2296f4709..987ca81910 100644 --- a/src/basic/calendarspec.c +++ b/src/basic/calendarspec.c @@ -22,6 +22,7 @@ #include #include +#include "string-util.h" #include "calendarspec.h" #define BITS_WEEKDAYS 127 diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c index a3ea512165..ce21ef73eb 100644 --- a/src/basic/cgroup-util.c +++ b/src/basic/cgroup-util.c @@ -39,6 +39,7 @@ #include "process-util.h" #include "set.h" #include "special.h" +#include "string-util.h" #include "unit-name.h" #include "util.h" #include "cgroup-util.h" diff --git a/src/basic/clock-util.c b/src/basic/clock-util.c index e4e03df1e4..03ec5725ae 100644 --- a/src/basic/clock-util.c +++ b/src/basic/clock-util.c @@ -20,13 +20,14 @@ ***/ #include -#include #include +#include +#include #include #include -#include #include "macro.h" +#include "string-util.h" #include "util.h" #include "clock-util.h" diff --git a/src/basic/conf-files.c b/src/basic/conf-files.c index da8745b284..0e44d1bbad 100644 --- a/src/basic/conf-files.c +++ b/src/basic/conf-files.c @@ -19,19 +19,20 @@ along with systemd; If not, see . ***/ -#include +#include #include -#include #include -#include +#include +#include +#include "hashmap.h" +#include "log.h" #include "macro.h" -#include "util.h" #include "missing.h" -#include "log.h" -#include "strv.h" #include "path-util.h" -#include "hashmap.h" +#include "string-util.h" +#include "strv.h" +#include "util.h" #include "conf-files.h" static int files_add(Hashmap *h, const char *root, const char *path, const char *suffix) { diff --git a/src/basic/copy.c b/src/basic/copy.c index b20c178727..7702d906c7 100644 --- a/src/basic/copy.c +++ b/src/basic/copy.c @@ -22,9 +22,10 @@ #include #include -#include "util.h" #include "btrfs-util.h" +#include "string-util.h" #include "strv.h" +#include "util.h" #include "copy.h" #define COPY_BUFFER_SIZE (16*1024) diff --git a/src/basic/env-util.c b/src/basic/env-util.c index ecb2192c4d..a392af737c 100644 --- a/src/basic/env-util.c +++ b/src/basic/env-util.c @@ -22,11 +22,12 @@ #include #include +#include "def.h" +#include "string-util.h" #include "strv.h" #include "utf8.h" #include "util.h" #include "env-util.h" -#include "def.h" #define VALID_CHARS_ENV_NAME \ DIGITS LETTERS \ diff --git a/src/basic/fdset.c b/src/basic/fdset.c index d70fe156a2..2882f515b5 100644 --- a/src/basic/fdset.c +++ b/src/basic/fdset.c @@ -23,11 +23,12 @@ #include #include +#include "sd-daemon.h" + #include "set.h" #include "util.h" #include "macro.h" #include "fdset.h" -#include "sd-daemon.h" #define MAKE_SET(s) ((Set*) s) #define MAKE_FDSET(s) ((FDSet*) s) diff --git a/src/basic/fileio.c b/src/basic/fileio.c index 65a6a6558b..f8ccf79221 100644 --- a/src/basic/fileio.c +++ b/src/basic/fileio.c @@ -23,6 +23,7 @@ #include "ctype.h" #include "escape.h" +#include "string-util.h" #include "strv.h" #include "utf8.h" #include "util.h" diff --git a/src/basic/hostname-util.c b/src/basic/hostname-util.c index 1b816fb77a..8d10615682 100644 --- a/src/basic/hostname-util.c +++ b/src/basic/hostname-util.c @@ -19,9 +19,10 @@ along with systemd; If not, see . ***/ -#include #include +#include +#include "string-util.h" #include "util.h" #include "hostname-util.h" diff --git a/src/basic/json.c b/src/basic/json.c index be40a0d203..2b634aa7f8 100644 --- a/src/basic/json.c +++ b/src/basic/json.c @@ -19,9 +19,11 @@ along with systemd; If not, see . ***/ -#include #include +#include + #include "macro.h" +#include "string-util.h" #include "utf8.h" #include "json.h" diff --git a/src/basic/locale-util.c b/src/basic/locale-util.c index 61db9a8125..a44daf8f5e 100644 --- a/src/basic/locale-util.c +++ b/src/basic/locale-util.c @@ -22,10 +22,10 @@ #include #include "set.h" -#include "util.h" -#include "utf8.h" +#include "string-util.h" #include "strv.h" - +#include "utf8.h" +#include "util.h" #include "locale-util.h" static int add_locales_from_archive(Set *locales) { diff --git a/src/basic/log.c b/src/basic/log.c index e6d7d15182..acc390b8d3 100644 --- a/src/basic/log.c +++ b/src/basic/log.c @@ -19,26 +19,28 @@ along with systemd; If not, see . ***/ -#include -#include #include -#include #include +#include +#include +#include +#include #include #include -#include -#include +#include #include "sd-messages.h" -#include "log.h" -#include "util.h" -#include "missing.h" -#include "macro.h" -#include "socket-util.h" + #include "formats-util.h" +#include "macro.h" +#include "missing.h" #include "process-util.h" -#include "terminal-util.h" #include "signal-util.h" +#include "socket-util.h" +#include "string-util.h" +#include "terminal-util.h" +#include "util.h" +#include "log.h" #define SNDBUF_SIZE (8*1024*1024) diff --git a/src/basic/log.h b/src/basic/log.h index 369d6b1127..cda1e45cc8 100644 --- a/src/basic/log.h +++ b/src/basic/log.h @@ -21,14 +21,15 @@ along with systemd; If not, see . ***/ -#include +#include #include +#include #include -#include #include -#include +#include #include "sd-id128.h" + #include "macro.h" typedef enum LogTarget{ diff --git a/src/basic/login-util.c b/src/basic/login-util.c index e25437f0f4..832f477bd2 100644 --- a/src/basic/login-util.c +++ b/src/basic/login-util.c @@ -19,8 +19,9 @@ along with systemd; If not, see . ***/ -#include "login-util.h" #include "def.h" +#include "string-util.h" +#include "login-util.h" bool session_id_valid(const char *id) { diff --git a/src/basic/memfd-util.c b/src/basic/memfd-util.c index e99a738e1f..4dafd69daf 100644 --- a/src/basic/memfd-util.c +++ b/src/basic/memfd-util.c @@ -19,19 +19,19 @@ along with systemd; If not, see . ***/ -#include #include -#include -#include - #ifdef HAVE_LINUX_MEMFD_H -# include +#include #endif +#include +#include +#include +#include "missing.h" +#include "string-util.h" +#include "utf8.h" #include "util.h" #include "memfd-util.h" -#include "utf8.h" -#include "missing.h" int memfd_new(const char *name) { _cleanup_free_ char *g = NULL; diff --git a/src/basic/path-util.c b/src/basic/path-util.c index 6b05b6edb1..31328807f4 100644 --- a/src/basic/path-util.c +++ b/src/basic/path-util.c @@ -19,21 +19,22 @@ along with systemd; If not, see . ***/ -#include -#include #include -#include -#include #include +#include +#include +#include #include +#include -#include "macro.h" -#include "util.h" +#include "fileio.h" #include "log.h" +#include "macro.h" +#include "missing.h" +#include "string-util.h" #include "strv.h" +#include "util.h" #include "path-util.h" -#include "missing.h" -#include "fileio.h" bool path_is_absolute(const char *p) { return p[0] == '/'; diff --git a/src/basic/process-util.c b/src/basic/process-util.c index 3199efeafd..bfde17a956 100644 --- a/src/basic/process-util.c +++ b/src/basic/process-util.c @@ -32,6 +32,7 @@ #include "fileio.h" #include "log.h" #include "signal-util.h" +#include "string-util.h" #include "util.h" #include "process-util.h" diff --git a/src/basic/rm-rf.c b/src/basic/rm-rf.c index 2ef63799d7..5a75090a6d 100644 --- a/src/basic/rm-rf.c +++ b/src/basic/rm-rf.c @@ -19,9 +19,10 @@ along with systemd; If not, see . ***/ -#include "util.h" -#include "path-util.h" #include "btrfs-util.h" +#include "path-util.h" +#include "string-util.h" +#include "util.h" #include "rm-rf.h" int rm_rf_children(int fd, RemoveFlags flags, struct stat *root_dev) { diff --git a/src/basic/signal-util.c b/src/basic/signal-util.c index 90abe8af81..730f99e0af 100644 --- a/src/basic/signal-util.c +++ b/src/basic/signal-util.c @@ -19,7 +19,9 @@ along with systemd; If not, see . ***/ +#include "string-util.h" #include "util.h" + #include "signal-util.h" int reset_all_signal_handlers(void) { diff --git a/src/basic/socket-util.c b/src/basic/socket-util.c index 8fd3149276..9ed5feb849 100644 --- a/src/basic/socket-util.c +++ b/src/basic/socket-util.c @@ -19,23 +19,24 @@ along with systemd; If not, see . ***/ -#include -#include -#include #include -#include +#include #include -#include -#include #include +#include +#include +#include +#include +#include +#include "fileio.h" +#include "formats-util.h" #include "macro.h" +#include "missing.h" #include "path-util.h" +#include "string-util.h" #include "util.h" #include "socket-util.h" -#include "missing.h" -#include "fileio.h" -#include "formats-util.h" int socket_address_parse(SocketAddress *a, const char *s) { char *e, *n; diff --git a/src/basic/string-util.c b/src/basic/string-util.c new file mode 100644 index 0000000000..a7cf4e8520 --- /dev/null +++ b/src/basic/string-util.c @@ -0,0 +1,767 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include "gunicode.h" +#include "utf8.h" +#include "util.h" +#include "string-util.h" + +int strcmp_ptr(const char *a, const char *b) { + + /* Like strcmp(), but tries to make sense of NULL pointers */ + if (a && b) + return strcmp(a, b); + + if (!a && b) + return -1; + + if (a && !b) + return 1; + + return 0; +} + +char* endswith(const char *s, const char *postfix) { + size_t sl, pl; + + assert(s); + assert(postfix); + + sl = strlen(s); + pl = strlen(postfix); + + if (pl == 0) + return (char*) s + sl; + + if (sl < pl) + return NULL; + + if (memcmp(s + sl - pl, postfix, pl) != 0) + return NULL; + + return (char*) s + sl - pl; +} + +char* endswith_no_case(const char *s, const char *postfix) { + size_t sl, pl; + + assert(s); + assert(postfix); + + sl = strlen(s); + pl = strlen(postfix); + + if (pl == 0) + return (char*) s + sl; + + if (sl < pl) + return NULL; + + if (strcasecmp(s + sl - pl, postfix) != 0) + return NULL; + + return (char*) s + sl - pl; +} + +char* first_word(const char *s, const char *word) { + size_t sl, wl; + const char *p; + + assert(s); + assert(word); + + /* Checks if the string starts with the specified word, either + * followed by NUL or by whitespace. Returns a pointer to the + * NUL or the first character after the whitespace. */ + + sl = strlen(s); + wl = strlen(word); + + if (sl < wl) + return NULL; + + if (wl == 0) + return (char*) s; + + if (memcmp(s, word, wl) != 0) + return NULL; + + p = s + wl; + if (*p == 0) + return (char*) p; + + if (!strchr(WHITESPACE, *p)) + return NULL; + + p += strspn(p, WHITESPACE); + return (char*) p; +} + +static size_t strcspn_escaped(const char *s, const char *reject) { + bool escaped = false; + int n; + + for (n=0; s[n]; n++) { + if (escaped) + escaped = false; + else if (s[n] == '\\') + escaped = true; + else if (strchr(reject, s[n])) + break; + } + + /* if s ends in \, return index of previous char */ + return n - escaped; +} + +/* Split a string into words. */ +const char* split(const char **state, size_t *l, const char *separator, bool quoted) { + const char *current; + + current = *state; + + if (!*current) { + assert(**state == '\0'); + return NULL; + } + + current += strspn(current, separator); + if (!*current) { + *state = current; + return NULL; + } + + if (quoted && strchr("\'\"", *current)) { + char quotechars[2] = {*current, '\0'}; + + *l = strcspn_escaped(current + 1, quotechars); + if (current[*l + 1] == '\0' || current[*l + 1] != quotechars[0] || + (current[*l + 2] && !strchr(separator, current[*l + 2]))) { + /* right quote missing or garbage at the end */ + *state = current; + return NULL; + } + *state = current++ + *l + 2; + } else if (quoted) { + *l = strcspn_escaped(current, separator); + if (current[*l] && !strchr(separator, current[*l])) { + /* unfinished escape */ + *state = current; + return NULL; + } + *state = current + *l; + } else { + *l = strcspn(current, separator); + *state = current + *l; + } + + return current; +} + +char *strnappend(const char *s, const char *suffix, size_t b) { + size_t a; + char *r; + + if (!s && !suffix) + return strdup(""); + + if (!s) + return strndup(suffix, b); + + if (!suffix) + return strdup(s); + + assert(s); + assert(suffix); + + a = strlen(s); + if (b > ((size_t) -1) - a) + return NULL; + + r = new(char, a+b+1); + if (!r) + return NULL; + + memcpy(r, s, a); + memcpy(r+a, suffix, b); + r[a+b] = 0; + + return r; +} + +char *strappend(const char *s, const char *suffix) { + return strnappend(s, suffix, suffix ? strlen(suffix) : 0); +} + +char *strjoin(const char *x, ...) { + va_list ap; + size_t l; + char *r, *p; + + va_start(ap, x); + + if (x) { + l = strlen(x); + + for (;;) { + const char *t; + size_t n; + + t = va_arg(ap, const char *); + if (!t) + break; + + n = strlen(t); + if (n > ((size_t) -1) - l) { + va_end(ap); + return NULL; + } + + l += n; + } + } else + l = 0; + + va_end(ap); + + r = new(char, l+1); + if (!r) + return NULL; + + if (x) { + p = stpcpy(r, x); + + va_start(ap, x); + + for (;;) { + const char *t; + + t = va_arg(ap, const char *); + if (!t) + break; + + p = stpcpy(p, t); + } + + va_end(ap); + } else + r[0] = 0; + + return r; +} + +char *strstrip(char *s) { + char *e; + + /* Drops trailing whitespace. Modifies the string in + * place. Returns pointer to first non-space character */ + + s += strspn(s, WHITESPACE); + + for (e = strchr(s, 0); e > s; e --) + if (!strchr(WHITESPACE, e[-1])) + break; + + *e = 0; + + 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; +} + +char *truncate_nl(char *s) { + assert(s); + + s[strcspn(s, NEWLINE)] = 0; + return s; +} + +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; +} + +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; +} + +bool string_has_cc(const char *p, const char *ok) { + const char *t; + + assert(p); + + /* + * Check if a string contains control characters. If 'ok' is + * non-NULL it may be a string containing additional CCs to be + * considered OK. + */ + + for (t = p; *t; t++) { + if (ok && strchr(ok, *t)) + continue; + + if (*t > 0 && *t < ' ') + return true; + + if (*t == 127) + return true; + } + + return false; +} + +static char *ascii_ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) { + size_t x; + char *r; + + assert(s); + assert(percent <= 100); + assert(new_length >= 3); + + if (old_length <= 3 || old_length <= new_length) + return strndup(s, old_length); + + r = new0(char, new_length+1); + if (!r) + return NULL; + + x = (new_length * percent) / 100; + + if (x > new_length - 3) + x = new_length - 3; + + memcpy(r, s, x); + r[x] = '.'; + r[x+1] = '.'; + r[x+2] = '.'; + memcpy(r + x + 3, + s + old_length - (new_length - x - 3), + new_length - x - 3); + + return r; +} + +char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) { + size_t x; + char *e; + const char *i, *j; + unsigned k, len, len2; + + assert(s); + assert(percent <= 100); + assert(new_length >= 3); + + /* if no multibyte characters use ascii_ellipsize_mem for speed */ + if (ascii_is_valid(s)) + return ascii_ellipsize_mem(s, old_length, new_length, percent); + + if (old_length <= 3 || old_length <= new_length) + return strndup(s, old_length); + + x = (new_length * percent) / 100; + + if (x > new_length - 3) + x = new_length - 3; + + k = 0; + for (i = s; k < x && i < s + old_length; i = utf8_next_char(i)) { + int c; + + c = utf8_encoded_to_unichar(i); + if (c < 0) + return NULL; + k += unichar_iswide(c) ? 2 : 1; + } + + if (k > x) /* last character was wide and went over quota */ + x ++; + + for (j = s + old_length; k < new_length && j > i; ) { + int c; + + j = utf8_prev_char(j); + c = utf8_encoded_to_unichar(j); + if (c < 0) + return NULL; + k += unichar_iswide(c) ? 2 : 1; + } + assert(i <= j); + + /* we don't actually need to ellipsize */ + if (i == j) + return memdup(s, old_length + 1); + + /* make space for ellipsis */ + j = utf8_next_char(j); + + len = i - s; + len2 = s + old_length - j; + e = new(char, len + 3 + len2 + 1); + if (!e) + return NULL; + + /* + printf("old_length=%zu new_length=%zu x=%zu len=%u len2=%u k=%u\n", + old_length, new_length, x, len, len2, k); + */ + + memcpy(e, s, len); + e[len] = 0xe2; /* tri-dot ellipsis: … */ + e[len + 1] = 0x80; + e[len + 2] = 0xa6; + + memcpy(e + len + 3, j, len2 + 1); + + return e; +} + +char *ellipsize(const char *s, size_t length, unsigned percent) { + return ellipsize_mem(s, strlen(s), length, percent); +} + +bool nulstr_contains(const char*nulstr, const char *needle) { + const char *i; + + if (!nulstr) + return false; + + NULSTR_FOREACH(i, nulstr) + if (streq(i, needle)) + return true; + + return false; +} + +char* strshorten(char *s, size_t l) { + assert(s); + + if (l < strlen(s)) + s[l] = 0; + + return s; +} + +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; +} + +char *strip_tab_ansi(char **ibuf, size_t *_isz) { + const char *i, *begin = NULL; + enum { + STATE_OTHER, + STATE_ESCAPE, + STATE_BRACKET + } state = STATE_OTHER; + char *obuf = NULL; + size_t osz = 0, isz; + FILE *f; + + assert(ibuf); + assert(*ibuf); + + /* Strips ANSI color and replaces TABs by 8 spaces */ + + isz = _isz ? *_isz : strlen(*ibuf); + + f = open_memstream(&obuf, &osz); + if (!f) + return NULL; + + for (i = *ibuf; i < *ibuf + isz + 1; i++) { + + switch (state) { + + case STATE_OTHER: + if (i >= *ibuf + isz) /* EOT */ + break; + else if (*i == '\x1B') + state = STATE_ESCAPE; + else if (*i == '\t') + fputs(" ", f); + else + fputc(*i, f); + break; + + case STATE_ESCAPE: + if (i >= *ibuf + isz) { /* EOT */ + fputc('\x1B', f); + break; + } else if (*i == '[') { + state = STATE_BRACKET; + begin = i + 1; + } else { + fputc('\x1B', f); + fputc(*i, f); + state = STATE_OTHER; + } + + break; + + case STATE_BRACKET: + + if (i >= *ibuf + isz || /* EOT */ + (!(*i >= '0' && *i <= '9') && *i != ';' && *i != 'm')) { + fputc('\x1B', f); + fputc('[', f); + state = STATE_OTHER; + i = begin-1; + } else if (*i == 'm') + state = STATE_OTHER; + break; + } + } + + if (ferror(f)) { + fclose(f); + free(obuf); + return NULL; + } + + fclose(f); + + free(*ibuf); + *ibuf = obuf; + + if (_isz) + *_isz = osz; + + return obuf; +} + +char *strextend(char **x, ...) { + va_list ap; + size_t f, l; + char *r, *p; + + assert(x); + + l = f = *x ? strlen(*x) : 0; + + va_start(ap, x); + for (;;) { + const char *t; + size_t n; + + t = va_arg(ap, const char *); + if (!t) + break; + + n = strlen(t); + if (n > ((size_t) -1) - l) { + va_end(ap); + return NULL; + } + + l += n; + } + va_end(ap); + + r = realloc(*x, l+1); + if (!r) + return NULL; + + p = r + f; + + va_start(ap, x); + for (;;) { + const char *t; + + t = va_arg(ap, const char *); + if (!t) + break; + + p = stpcpy(p, t); + } + va_end(ap); + + *p = 0; + *x = r; + + return r + l; +} + +char *strrep(const char *s, unsigned n) { + size_t l; + char *r, *p; + unsigned i; + + assert(s); + + l = strlen(s); + p = r = malloc(l * n + 1); + if (!r) + return NULL; + + for (i = 0; i < n; i++) + p = stpcpy(p, s); + + *p = 0; + return r; +} + +int split_pair(const char *s, const char *sep, char **l, char **r) { + char *x, *a, *b; + + assert(s); + assert(sep); + assert(l); + assert(r); + + if (isempty(sep)) + return -EINVAL; + + x = strstr(s, sep); + if (!x) + return -EINVAL; + + a = strndup(s, x - s); + if (!a) + return -ENOMEM; + + b = strdup(x + strlen(sep)); + if (!b) { + free(a); + return -ENOMEM; + } + + *l = a; + *r = b; + + return 0; +} + +int free_and_strdup(char **p, const char *s) { + char *t; + + assert(p); + + /* Replaces a string pointer with an strdup()ed new string, + * possibly freeing the old one. */ + + if (streq_ptr(*p, s)) + return 0; + + if (s) { + t = strdup(s); + if (!t) + return -ENOMEM; + } else + t = NULL; + + free(*p); + *p = t; + + return 1; +} + +void string_erase(char *x) { + + if (!x) + return; + + /* A delicious drop of snake-oil! To be called on memory where + * we stored passphrases or so, after we used them. */ + + memory_erase(x, strlen(x)); +} + +char *string_free_erase(char *s) { + if (!s) + return NULL; + + string_erase(s); + return mfree(s); +} diff --git a/src/basic/string-util.h b/src/basic/string-util.h new file mode 100644 index 0000000000..7b7c0e5f32 --- /dev/null +++ b/src/basic/string-util.h @@ -0,0 +1,170 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#pragma once + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include +#include + +#include "macro.h" + +#define streq(a,b) (strcmp((a),(b)) == 0) +#define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) +#define strcaseeq(a,b) (strcasecmp((a),(b)) == 0) +#define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0) + +int strcmp_ptr(const char *a, const char *b) _pure_; + +static inline bool streq_ptr(const char *a, const char *b) { + return strcmp_ptr(a, b) == 0; +} + +static inline const char* strempty(const char *s) { + return s ? s : ""; +} + +static inline const char* strnull(const char *s) { + return s ? s : "(null)"; +} + +static inline const char *strna(const char *s) { + return s ? s : "n/a"; +} + +static inline bool isempty(const char *p) { + return !p || !p[0]; +} + +static inline char *startswith(const char *s, const char *prefix) { + size_t l; + + l = strlen(prefix); + if (strncmp(s, prefix, l) == 0) + return (char*) s + l; + + return NULL; +} + +static inline char *startswith_no_case(const char *s, const char *prefix) { + size_t l; + + l = strlen(prefix); + if (strncasecmp(s, prefix, l) == 0) + return (char*) s + l; + + return NULL; +} + +char *endswith(const char *s, const char *postfix) _pure_; +char *endswith_no_case(const char *s, const char *postfix) _pure_; + +char *first_word(const char *s, const char *word) _pure_; + +const char* split(const char **state, size_t *l, const char *separator, bool quoted); + +#define FOREACH_WORD(word, length, s, state) \ + _FOREACH_WORD(word, length, s, WHITESPACE, false, state) + +#define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ + _FOREACH_WORD(word, length, s, separator, false, state) + +#define FOREACH_WORD_QUOTED(word, length, s, state) \ + _FOREACH_WORD(word, length, s, WHITESPACE, true, state) + +#define _FOREACH_WORD(word, length, s, separator, quoted, state) \ + for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted))) + +char *strappend(const char *s, const char *suffix); +char *strnappend(const char *s, const char *suffix, size_t length); + +char *strjoin(const char *x, ...) _sentinel_; + +#define strjoina(a, ...) \ + ({ \ + const char *_appendees_[] = { a, __VA_ARGS__ }; \ + char *_d_, *_p_; \ + int _len_ = 0; \ + unsigned _i_; \ + for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \ + _len_ += strlen(_appendees_[_i_]); \ + _p_ = _d_ = alloca(_len_ + 1); \ + for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \ + _p_ = stpcpy(_p_, _appendees_[_i_]); \ + *_p_ = 0; \ + _d_; \ + }) + +char *strstrip(char *s); +char *delete_chars(char *s, const char *bad); +char *truncate_nl(char *s); + +char *ascii_strlower(char *path); + +bool chars_intersect(const char *a, const char *b) _pure_; + +static inline bool _pure_ in_charset(const char *s, const char* charset) { + assert(s); + assert(charset); + return s[strspn(s, charset)] == '\0'; +} + +bool string_has_cc(const char *p, const char *ok) _pure_; + +char *ellipsize_mem(const char *s, size_t old_length_bytes, size_t new_length_columns, unsigned percent); +char *ellipsize(const char *s, size_t length, unsigned percent); + +bool nulstr_contains(const char*nulstr, const char *needle); + +char* strshorten(char *s, size_t l); + +char *strreplace(const char *text, const char *old_string, const char *new_string); + +char *strip_tab_ansi(char **p, size_t *l); + +char *strextend(char **x, ...) _sentinel_; + +char *strrep(const char *s, unsigned n); + +int split_pair(const char *s, const char *sep, char **l, char **r); + +int free_and_strdup(char **p, const char *s); + +/* Normal memmem() requires haystack to be nonnull, which is annoying for zero-length buffers */ +static inline void *memmem_safe(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen) { + + if (needlelen <= 0) + return (void*) haystack; + + if (haystacklen < needlelen) + return NULL; + + assert(haystack); + assert(needle); + + return memmem(haystack, haystacklen, needle, needlelen); +} + +#define memory_erase(p, l) memset((p), 'x', (l)) +void string_erase(char *x); + +char *string_free_erase(char *s); +DEFINE_TRIVIAL_CLEANUP_FUNC(char *, string_free_erase); +#define _cleanup_string_free_erase_ _cleanup_(string_free_erasep) diff --git a/src/basic/strv.c b/src/basic/strv.c index 446d4a5631..f5df269006 100644 --- a/src/basic/strv.c +++ b/src/basic/strv.c @@ -19,12 +19,13 @@ along with systemd; If not, see . ***/ -#include +#include #include +#include #include -#include #include "escape.h" +#include "string-util.h" #include "util.h" #include "strv.h" diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c index ca7554a9fa..4723653566 100644 --- a/src/basic/terminal-util.c +++ b/src/basic/terminal-util.c @@ -17,26 +17,27 @@ along with systemd; If not, see . ***/ +#include +#include +#include +#include +#include +#include +#include #include -#include #include +#include #include -#include -#include -#include #include -#include -#include -#include -#include -#include +#include -#include "terminal-util.h" -#include "time-util.h" -#include "process-util.h" -#include "util.h" #include "fileio.h" #include "path-util.h" +#include "process-util.h" +#include "string-util.h" +#include "time-util.h" +#include "util.h" +#include "terminal-util.h" static volatile unsigned cached_columns = 0; static volatile unsigned cached_lines = 0; diff --git a/src/basic/time-util.c b/src/basic/time-util.c index d4e0914b27..a516d2807b 100644 --- a/src/basic/time-util.c +++ b/src/basic/time-util.c @@ -20,13 +20,14 @@ ***/ #include -#include #include +#include -#include "util.h" -#include "time-util.h" #include "path-util.h" +#include "string-util.h" #include "strv.h" +#include "util.h" +#include "time-util.h" usec_t now(clockid_t clock_id) { struct timespec ts; diff --git a/src/basic/unit-name.c b/src/basic/unit-name.c index a8b6b6dace..383c4ab871 100644 --- a/src/basic/unit-name.c +++ b/src/basic/unit-name.c @@ -22,12 +22,13 @@ #include #include -#include "path-util.h" #include "bus-label.h" -#include "util.h" -#include "unit-name.h" #include "def.h" +#include "path-util.h" +#include "string-util.h" #include "strv.h" +#include "util.h" +#include "unit-name.h" #define VALID_CHARS \ DIGITS LETTERS \ diff --git a/src/basic/util.c b/src/basic/util.c index d6488f8fd6..233a6c2e35 100644 --- a/src/basic/util.c +++ b/src/basic/util.c @@ -94,6 +94,7 @@ #include "random-util.h" #include "signal-util.h" #include "sparse-endian.h" +#include "string-util.h" #include "strv.h" #include "terminal-util.h" #include "utf8.h" @@ -120,101 +121,6 @@ size_t page_size(void) { return pgsz; } -int strcmp_ptr(const char *a, const char *b) { - - /* Like strcmp(), but tries to make sense of NULL pointers */ - if (a && b) - return strcmp(a, b); - - if (!a && b) - return -1; - - if (a && !b) - return 1; - - return 0; -} - -bool streq_ptr(const char *a, const char *b) { - return strcmp_ptr(a, b) == 0; -} - -char* endswith(const char *s, const char *postfix) { - size_t sl, pl; - - assert(s); - assert(postfix); - - sl = strlen(s); - pl = strlen(postfix); - - if (pl == 0) - return (char*) s + sl; - - if (sl < pl) - return NULL; - - if (memcmp(s + sl - pl, postfix, pl) != 0) - return NULL; - - return (char*) s + sl - pl; -} - -char* endswith_no_case(const char *s, const char *postfix) { - size_t sl, pl; - - assert(s); - assert(postfix); - - sl = strlen(s); - pl = strlen(postfix); - - if (pl == 0) - return (char*) s + sl; - - if (sl < pl) - return NULL; - - if (strcasecmp(s + sl - pl, postfix) != 0) - return NULL; - - return (char*) s + sl - pl; -} - -char* first_word(const char *s, const char *word) { - size_t sl, wl; - const char *p; - - assert(s); - assert(word); - - /* Checks if the string starts with the specified word, either - * followed by NUL or by whitespace. Returns a pointer to the - * NUL or the first character after the whitespace. */ - - sl = strlen(s); - wl = strlen(word); - - if (sl < wl) - return NULL; - - if (wl == 0) - return (char*) s; - - if (memcmp(s, word, wl) != 0) - return NULL; - - p = s + wl; - if (*p == 0) - return (char*) p; - - if (!strchr(WHITESPACE, *p)) - return NULL; - - p += strspn(p, WHITESPACE); - return (char*) p; -} - int close_nointr(int fd) { assert(fd >= 0); @@ -553,66 +459,6 @@ int safe_atod(const char *s, double *ret_d) { return 0; } -static size_t strcspn_escaped(const char *s, const char *reject) { - bool escaped = false; - int n; - - for (n=0; s[n]; n++) { - if (escaped) - escaped = false; - else if (s[n] == '\\') - escaped = true; - else if (strchr(reject, s[n])) - break; - } - - /* if s ends in \, return index of previous char */ - return n - escaped; -} - -/* Split a string into words. */ -const char* split(const char **state, size_t *l, const char *separator, bool quoted) { - const char *current; - - current = *state; - - if (!*current) { - assert(**state == '\0'); - return NULL; - } - - current += strspn(current, separator); - if (!*current) { - *state = current; - return NULL; - } - - if (quoted && strchr("\'\"", *current)) { - char quotechars[2] = {*current, '\0'}; - - *l = strcspn_escaped(current + 1, quotechars); - if (current[*l + 1] == '\0' || current[*l + 1] != quotechars[0] || - (current[*l + 2] && !strchr(separator, current[*l + 2]))) { - /* right quote missing or garbage at the end */ - *state = current; - return NULL; - } - *state = current++ + *l + 2; - } else if (quoted) { - *l = strcspn_escaped(current, separator); - if (current[*l] && !strchr(separator, current[*l])) { - /* unfinished escape */ - *state = current; - return NULL; - } - *state = current + *l; - } else { - *l = strcspn(current, separator); - *state = current + *l; - } - - return current; -} int fchmod_umask(int fd, mode_t m) { mode_t u; @@ -625,48 +471,6 @@ int fchmod_umask(int fd, mode_t m) { return r; } -char *truncate_nl(char *s) { - assert(s); - - s[strcspn(s, NEWLINE)] = 0; - return s; -} - -char *strnappend(const char *s, const char *suffix, size_t b) { - size_t a; - char *r; - - if (!s && !suffix) - return strdup(""); - - if (!s) - return strndup(suffix, b); - - if (!suffix) - return strdup(s); - - assert(s); - assert(suffix); - - a = strlen(s); - if (b > ((size_t) -1) - a) - return NULL; - - r = new(char, a+b+1); - if (!r) - return NULL; - - memcpy(r, s, a); - memcpy(r+a, suffix, b); - r[a+b] = 0; - - return r; -} - -char *strappend(const char *s, const char *suffix) { - return strnappend(s, suffix, suffix ? strlen(suffix) : 0); -} - int readlinkat_malloc(int fd, const char *p, char **ret) { size_t l = 100; int r; @@ -769,40 +573,6 @@ int readlink_and_canonicalize(const char *p, char **r) { return 0; } -char *strstrip(char *s) { - char *e; - - /* Drops trailing whitespace. Modifies the string in - * place. Returns pointer to first non-space character */ - - s += strspn(s, WHITESPACE); - - for (e = strchr(s, 0); e > s; e --) - if (!strchr(WHITESPACE, e[-1])) - break; - - *e = 0; - - 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; -} - char *file_in_same_dir(const char *path, const char *filename) { char *e, *ret; size_t k; @@ -1504,18 +1274,6 @@ int undecchar(char c) { return -EINVAL; } -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 hidden_file_allow_backup(const char *filename) { assert(filename); @@ -1663,17 +1421,6 @@ 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; -} - bool fstype_is_network(const char *fstype) { static const char table[] = "afs\0" @@ -2196,115 +1943,6 @@ int running_in_chroot(void) { return ret == 0; } -static char *ascii_ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) { - size_t x; - char *r; - - assert(s); - assert(percent <= 100); - assert(new_length >= 3); - - if (old_length <= 3 || old_length <= new_length) - return strndup(s, old_length); - - r = new0(char, new_length+1); - if (!r) - return NULL; - - x = (new_length * percent) / 100; - - if (x > new_length - 3) - x = new_length - 3; - - memcpy(r, s, x); - r[x] = '.'; - r[x+1] = '.'; - r[x+2] = '.'; - memcpy(r + x + 3, - s + old_length - (new_length - x - 3), - new_length - x - 3); - - return r; -} - -char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) { - size_t x; - char *e; - const char *i, *j; - unsigned k, len, len2; - - assert(s); - assert(percent <= 100); - assert(new_length >= 3); - - /* if no multibyte characters use ascii_ellipsize_mem for speed */ - if (ascii_is_valid(s)) - return ascii_ellipsize_mem(s, old_length, new_length, percent); - - if (old_length <= 3 || old_length <= new_length) - return strndup(s, old_length); - - x = (new_length * percent) / 100; - - if (x > new_length - 3) - x = new_length - 3; - - k = 0; - for (i = s; k < x && i < s + old_length; i = utf8_next_char(i)) { - int c; - - c = utf8_encoded_to_unichar(i); - if (c < 0) - return NULL; - k += unichar_iswide(c) ? 2 : 1; - } - - if (k > x) /* last character was wide and went over quota */ - x ++; - - for (j = s + old_length; k < new_length && j > i; ) { - int c; - - j = utf8_prev_char(j); - c = utf8_encoded_to_unichar(j); - if (c < 0) - return NULL; - k += unichar_iswide(c) ? 2 : 1; - } - assert(i <= j); - - /* we don't actually need to ellipsize */ - if (i == j) - return memdup(s, old_length + 1); - - /* make space for ellipsis */ - j = utf8_next_char(j); - - len = i - s; - len2 = s + old_length - j; - e = new(char, len + 3 + len2 + 1); - if (!e) - return NULL; - - /* - printf("old_length=%zu new_length=%zu x=%zu len=%u len2=%u k=%u\n", - old_length, new_length, x, len, len2, k); - */ - - memcpy(e, s, len); - e[len] = 0xe2; /* tri-dot ellipsis: … */ - e[len + 1] = 0x80; - e[len + 2] = 0xa6; - - memcpy(e + len + 3, j, len2 + 1); - - return e; -} - -char *ellipsize(const char *s, size_t length, unsigned percent) { - return ellipsize_mem(s, strlen(s), length, percent); -} - int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode) { _cleanup_close_ int fd; int r; @@ -2637,32 +2275,10 @@ void execute_directories(const char* const* directories, usec_t timeout, char *a wait_for_terminate_and_warn(name, executor_pid, true); } -bool nulstr_contains(const char*nulstr, const char *needle) { - const char *i; - - if (!nulstr) - return false; - - NULSTR_FOREACH(i, nulstr) - if (streq(i, needle)) - return true; - - return false; -} - bool plymouth_running(void) { return access("/run/plymouth/pid", F_OK) >= 0; } -char* strshorten(char *s, size_t l) { - assert(s); - - if (l < strlen(s)) - s[l] = 0; - - return s; -} - int pipe_eof(int fd) { struct pollfd pollfd = { .fd = fd, @@ -3150,63 +2766,6 @@ int get_files_in_directory(const char *path, char ***list) { return n; } -char *strjoin(const char *x, ...) { - va_list ap; - size_t l; - char *r, *p; - - va_start(ap, x); - - if (x) { - l = strlen(x); - - for (;;) { - const char *t; - size_t n; - - t = va_arg(ap, const char *); - if (!t) - break; - - n = strlen(t); - if (n > ((size_t) -1) - l) { - va_end(ap); - return NULL; - } - - l += n; - } - } else - l = 0; - - va_end(ap); - - r = new(char, l+1); - if (!r) - return NULL; - - if (x) { - p = stpcpy(r, x); - - va_start(ap, x); - - for (;;) { - const char *t; - - t = va_arg(ap, const char *); - if (!t) - break; - - p = stpcpy(p, t); - } - - va_end(ap); - } else - r[0] = 0; - - return r; -} - bool is_main_thread(void) { static thread_local int cached = 0; @@ -3832,29 +3391,6 @@ bool string_is_safe(const char *p) { return true; } -/** - * Check if a string contains control characters. If 'ok' is non-NULL - * it may be a string containing additional CCs to be considered OK. - */ -bool string_has_cc(const char *p, const char *ok) { - const char *t; - - assert(p); - - for (t = p; *t; t++) { - if (ok && strchr(ok, *t)) - continue; - - if (*t > 0 && *t < ' ') - return true; - - if (*t == 127) - return true; - } - - return false; -} - bool path_is_safe(const char *p) { if (isempty(p)) @@ -3976,139 +3512,6 @@ const char *draw_special_char(DrawSpecialChar ch) { 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; -} - -char *strip_tab_ansi(char **ibuf, size_t *_isz) { - const char *i, *begin = NULL; - enum { - STATE_OTHER, - STATE_ESCAPE, - STATE_BRACKET - } state = STATE_OTHER; - char *obuf = NULL; - size_t osz = 0, isz; - FILE *f; - - assert(ibuf); - assert(*ibuf); - - /* Strips ANSI color and replaces TABs by 8 spaces */ - - isz = _isz ? *_isz : strlen(*ibuf); - - f = open_memstream(&obuf, &osz); - if (!f) - return NULL; - - for (i = *ibuf; i < *ibuf + isz + 1; i++) { - - switch (state) { - - case STATE_OTHER: - if (i >= *ibuf + isz) /* EOT */ - break; - else if (*i == '\x1B') - state = STATE_ESCAPE; - else if (*i == '\t') - fputs(" ", f); - else - fputc(*i, f); - break; - - case STATE_ESCAPE: - if (i >= *ibuf + isz) { /* EOT */ - fputc('\x1B', f); - break; - } else if (*i == '[') { - state = STATE_BRACKET; - begin = i + 1; - } else { - fputc('\x1B', f); - fputc(*i, f); - state = STATE_OTHER; - } - - break; - - case STATE_BRACKET: - - if (i >= *ibuf + isz || /* EOT */ - (!(*i >= '0' && *i <= '9') && *i != ';' && *i != 'm')) { - fputc('\x1B', f); - fputc('[', f); - state = STATE_OTHER; - i = begin-1; - } else if (*i == 'm') - state = STATE_OTHER; - break; - } - } - - if (ferror(f)) { - fclose(f); - free(obuf); - return NULL; - } - - fclose(f); - - free(*ibuf); - *ibuf = obuf; - - if (_isz) - *_isz = osz; - - return obuf; -} - int on_ac_power(void) { bool found_offline = false, found_online = false; _cleanup_closedir_ DIR *d = NULL; @@ -4267,77 +3670,6 @@ int search_and_fopen_nulstr(const char *path, const char *mode, const char *root return search_and_fopen_internal(path, mode, root, s, _f); } -char *strextend(char **x, ...) { - va_list ap; - size_t f, l; - char *r, *p; - - assert(x); - - l = f = *x ? strlen(*x) : 0; - - va_start(ap, x); - for (;;) { - const char *t; - size_t n; - - t = va_arg(ap, const char *); - if (!t) - break; - - n = strlen(t); - if (n > ((size_t) -1) - l) { - va_end(ap); - return NULL; - } - - l += n; - } - va_end(ap); - - r = realloc(*x, l+1); - if (!r) - return NULL; - - p = r + f; - - va_start(ap, x); - for (;;) { - const char *t; - - t = va_arg(ap, const char *); - if (!t) - break; - - p = stpcpy(p, t); - } - va_end(ap); - - *p = 0; - *x = r; - - return r + l; -} - -char *strrep(const char *s, unsigned n) { - size_t l; - char *r, *p; - unsigned i; - - assert(s); - - l = strlen(s); - p = r = malloc(l * n + 1); - if (!r) - return NULL; - - for (i = 0; i < n; i++) - p = stpcpy(p, s); - - *p = 0; - return r; -} - void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size) { size_t a, newalloc; void *q; @@ -4424,37 +3756,6 @@ bool id128_is_valid(const char *s) { return true; } -int split_pair(const char *s, const char *sep, char **l, char **r) { - char *x, *a, *b; - - assert(s); - assert(sep); - assert(l); - assert(r); - - if (isempty(sep)) - return -EINVAL; - - x = strstr(s, sep); - if (!x) - return -EINVAL; - - a = strndup(s, x - s); - if (!a) - return -ENOMEM; - - b = strdup(x + strlen(sep)); - if (!b) { - free(a); - return -ENOMEM; - } - - *l = a; - *r = b; - - return 0; -} - int shall_restore_state(void) { _cleanup_free_ char *value = NULL; int r; @@ -5407,30 +4708,6 @@ int is_device_node(const char *path) { return !!(S_ISBLK(info.st_mode) || S_ISCHR(info.st_mode)); } -int free_and_strdup(char **p, const char *s) { - char *t; - - assert(p); - - /* Replaces a string pointer with an strdup()ed new string, - * possibly freeing the old one. */ - - if (streq_ptr(*p, s)) - return 0; - - if (s) { - t = strdup(s); - if (!t) - return -ENOMEM; - } else - t = NULL; - - free(*p); - *p = t; - - return 1; -} - ssize_t fgetxattrat_fake(int dirfd, const char *filename, const char *attribute, void *value, size_t size, int flags) { char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1]; _cleanup_close_ int fd = -1; @@ -6080,22 +5357,3 @@ bool fdname_is_valid(const char *s) { bool oom_score_adjust_is_valid(int oa) { return oa >= OOM_SCORE_ADJ_MIN && oa <= OOM_SCORE_ADJ_MAX; } - -void string_erase(char *x) { - - if (!x) - return; - - /* A delicious drop of snake-oil! To be called on memory where - * we stored passphrases or so, after we used them. */ - - memory_erase(x, strlen(x)); -} - -char *string_free_erase(char *s) { - if (!s) - return NULL; - - string_erase(s); - return mfree(s); -} diff --git a/src/basic/util.h b/src/basic/util.h index 6674111145..7d1e4e0f62 100644 --- a/src/basic/util.h +++ b/src/basic/util.h @@ -58,14 +58,6 @@ size_t page_size(void) _pure_; #define PAGE_ALIGN(l) ALIGN_TO((l), page_size()) -#define streq(a,b) (strcmp((a),(b)) == 0) -#define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) -#define strcaseeq(a,b) (strcasecmp((a),(b)) == 0) -#define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0) - -bool streq_ptr(const char *a, const char *b) _pure_; -int strcmp_ptr(const char *a, const char *b) _pure_; - #define new(t, n) ((t*) malloc_multiply(sizeof(t), (n))) #define new0(t, n) ((t*) calloc((n), sizeof(t))) @@ -95,47 +87,6 @@ static inline const char* one_zero(bool b) { return b ? "1" : "0"; } -static inline const char* strempty(const char *s) { - return s ? s : ""; -} - -static inline const char* strnull(const char *s) { - return s ? s : "(null)"; -} - -static inline const char *strna(const char *s) { - return s ? s : "n/a"; -} - -static inline bool isempty(const char *p) { - return !p || !p[0]; -} - -static inline char *startswith(const char *s, const char *prefix) { - size_t l; - - l = strlen(prefix); - if (strncmp(s, prefix, l) == 0) - return (char*) s + l; - - return NULL; -} - -static inline char *startswith_no_case(const char *s, const char *prefix) { - size_t l; - - l = strlen(prefix); - if (strncasecmp(s, prefix, l) == 0) - return (char*) s + l; - - return NULL; -} - -char *endswith(const char *s, const char *postfix) _pure_; -char *endswith_no_case(const char *s, const char *postfix) _pure_; - -char *first_word(const char *s, const char *word) _pure_; - int close_nointr(int fd); int safe_close(int fd); void safe_close_pair(int p[]); @@ -212,33 +163,12 @@ static inline int safe_atoi64(const char *s, int64_t *ret_i) { int safe_atou16(const char *s, uint16_t *ret); int safe_atoi16(const char *s, int16_t *ret); -const char* split(const char **state, size_t *l, const char *separator, bool quoted); - -#define FOREACH_WORD(word, length, s, state) \ - _FOREACH_WORD(word, length, s, WHITESPACE, false, state) - -#define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ - _FOREACH_WORD(word, length, s, separator, false, state) - -#define FOREACH_WORD_QUOTED(word, length, s, state) \ - _FOREACH_WORD(word, length, s, WHITESPACE, true, state) - -#define _FOREACH_WORD(word, length, s, separator, quoted, state) \ - for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted))) - -char *strappend(const char *s, const char *suffix); -char *strnappend(const char *s, const char *suffix, size_t length); - int readlinkat_malloc(int fd, const char *p, char **ret); int readlink_malloc(const char *p, char **r); int readlink_value(const char *p, char **ret); int readlink_and_make_absolute(const char *p, char **r); int readlink_and_canonicalize(const char *p, char **r); -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); @@ -254,15 +184,11 @@ int unbase32hexchar(char c) _const_; char base64char(int x) _const_; int unbase64char(char c) _const_; -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 hidden_file(const char *filename) _pure_; -bool chars_intersect(const char *a, const char *b) _pure_; - /* For basic lookup tables with strictly enumerated entries */ #define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \ scope const char *name##_to_string(type i) { \ @@ -373,10 +299,6 @@ int files_same(const char *filea, const char *fileb); int running_in_chroot(void); -char *ellipsize(const char *s, size_t length, unsigned percent); - /* bytes columns */ -char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent); - int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode); int touch(const char *path); @@ -392,12 +314,8 @@ char *fstab_node_to_udev_node(const char *p); void execute_directories(const char* const* directories, usec_t timeout, char *argv[]); -bool nulstr_contains(const char*nulstr, const char *needle); - bool plymouth_running(void); -char* strshorten(char *s, size_t l); - int symlink_idempotent(const char *from, const char *to); int symlink_atomic(const char *from, const char *to); @@ -425,16 +343,8 @@ int dirent_ensure_type(DIR *d, struct dirent *de); int get_files_in_directory(const char *path, char ***list); -char *strjoin(const char *x, ...) _sentinel_; - bool is_main_thread(void); -static inline bool _pure_ in_charset(const char *s, const char* charset) { - assert(s); - assert(charset); - return s[strspn(s, charset)] == '\0'; -} - int block_get_whole_disk(dev_t d, dev_t *ret); #define NULSTR_FOREACH(i, l) \ @@ -554,7 +464,6 @@ _alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_ bool filename_is_valid(const char *p) _pure_; bool path_is_safe(const char *p) _pure_; bool string_is_safe(const char *p) _pure_; -bool string_has_cc(const char *p, const char *ok) _pure_; /** * Check if a string contains any glob patterns. @@ -586,10 +495,6 @@ typedef enum DrawSpecialChar { const char *draw_special_char(DrawSpecialChar ch); -char *strreplace(const char *text, const char *old_string, const char *new_string); - -char *strip_tab_ansi(char **p, size_t *l); - int on_ac_power(void); int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f); @@ -638,9 +543,6 @@ int unbase32hexmem(const char *p, size_t l, bool padding, void **mem, size_t *le char *base64mem(const void *p, size_t l); int unbase64mem(const char *p, size_t l, void **mem, size_t *len); -char *strextend(char **x, ...) _sentinel_; -char *strrep(const char *s, unsigned n); - void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size); void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size); #define GREEDY_REALLOC(array, allocated, need) \ @@ -755,25 +657,8 @@ int unlink_noerrno(const char *path); (void*)memset(_new_, 0, _size_); \ }) -#define strjoina(a, ...) \ - ({ \ - const char *_appendees_[] = { a, __VA_ARGS__ }; \ - char *_d_, *_p_; \ - int _len_ = 0; \ - unsigned _i_; \ - for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \ - _len_ += strlen(_appendees_[_i_]); \ - _p_ = _d_ = alloca(_len_ + 1); \ - for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \ - _p_ = stpcpy(_p_, _appendees_[_i_]); \ - *_p_ = 0; \ - _d_; \ - }) - bool id128_is_valid(const char *s) _pure_; -int split_pair(const char *s, const char *sep, char **l, char **r); - int shall_restore_state(void); /** @@ -788,21 +673,6 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_ qsort(base, nmemb, size, compar); } -/* Normal memmem() requires haystack to be nonnull, which is annoying for zero-length buffers */ -static inline void *memmem_safe(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen) { - - if (needlelen <= 0) - return (void*) haystack; - - if (haystacklen < needlelen) - return NULL; - - assert(haystack); - assert(needle); - - return memmem(haystack, haystacklen, needle, needlelen); -} - int proc_cmdline(char **ret); int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value)); int get_proc_cmdline_key(const char *parameter, char **value); @@ -860,8 +730,6 @@ int is_symlink(const char *path); int is_dir(const char *path, bool follow); int is_device_node(const char *path); -int free_and_strdup(char **p, const char *s); - #define INOTIFY_EVENT_MAX (sizeof(struct inotify_event) + NAME_MAX + 1) #define FOREACH_INOTIFY_EVENT(e, buffer, sz) \ @@ -923,10 +791,3 @@ int version(void); bool fdname_is_valid(const char *s); bool oom_score_adjust_is_valid(int oa); - -#define memory_erase(p, l) memset((p), 'x', (l)) -void string_erase(char *x); - -char *string_free_erase(char *s); -DEFINE_TRIVIAL_CLEANUP_FUNC(char *, string_free_erase); -#define _cleanup_string_free_erase_ _cleanup_(string_free_erasep) diff --git a/src/basic/verbs.c b/src/basic/verbs.c index c7beccc2dc..d63062d39e 100644 --- a/src/basic/verbs.c +++ b/src/basic/verbs.c @@ -19,6 +19,7 @@ along with systemd; If not, see . ***/ +#include "string-util.h" #include "util.h" #include "verbs.h" diff --git a/src/basic/virt.c b/src/basic/virt.c index 70543177b6..9267a2730b 100644 --- a/src/basic/virt.c +++ b/src/basic/virt.c @@ -19,14 +19,15 @@ along with systemd; If not, see . ***/ -#include #include +#include #include -#include "util.h" +#include "fileio.h" #include "process-util.h" +#include "string-util.h" +#include "util.h" #include "virt.h" -#include "fileio.h" static int detect_vm_cpuid(void) { diff --git a/src/basic/xml.c b/src/basic/xml.c index 15c629b188..8126bce212 100644 --- a/src/basic/xml.c +++ b/src/basic/xml.c @@ -21,6 +21,7 @@ #include +#include "string-util.h" #include "util.h" #include "xml.h" -- cgit v1.2.3-54-g00ecf