/* SPDX-License-Identifier: LGPL-2.1+ */
#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 <http://www.gnu.org/licenses/>.
-***/
-
#include <alloca.h>
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
+#include "alloc-util.h"
#include "macro.h"
/* What is interpreted as whitespace? */
return isempty(p) ? NULL : p;
}
-static inline const char *strdash_if_empty(const char *str) {
+static inline const char *empty_to_dash(const char *str) {
return isempty(str) ? "-" : str;
}
char *first_word(const char *s, const char *word) _pure_;
-const char* split(const char **state, size_t *l, const char *separator, bool quoted);
+typedef enum SplitFlags {
+ SPLIT_QUOTES = 0x01 << 0,
+ SPLIT_RELAX = 0x01 << 1,
+} SplitFlags;
+
+const char* split(const char **state, size_t *l, const char *separator, SplitFlags flags);
#define FOREACH_WORD(word, length, s, state) \
- _FOREACH_WORD(word, length, s, WHITESPACE, false, state)
+ _FOREACH_WORD(word, length, s, WHITESPACE, 0, state)
#define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \
- _FOREACH_WORD(word, length, s, separator, false, state)
+ _FOREACH_WORD(word, length, s, separator, 0, 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)))
+#define _FOREACH_WORD(word, length, s, separator, flags, state) \
+ for ((state) = (s), (word) = split(&(state), &(length), (separator), (flags)); (word); (word) = split(&(state), &(length), (separator), (flags)))
char *strappend(const char *s, const char *suffix);
char *strnappend(const char *s, const char *suffix, size_t length);
const char *_appendees_[] = { a, __VA_ARGS__ }; \
char *_d_, *_p_; \
size_t _len_ = 0; \
- unsigned _i_; \
+ size_t _i_; \
for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
_len_ += strlen(_appendees_[_i_]); \
- _p_ = _d_ = alloca(_len_ + 1); \
+ _p_ = _d_ = newa(char, _len_ + 1); \
for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
_p_ = stpcpy(_p_, _appendees_[_i_]); \
*_p_ = 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);
+static inline 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);
+char *cellescape(char *buf, size_t len, const char *s);
+
+/* This limit is arbitrary, enough to give some idea what the string contains */
+#define CELLESCAPE_DEFAULT_LENGTH 64
char* strshorten(char *s, size_t l);
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);
-}
-
-#if !HAVE_EXPLICIT_BZERO
-void explicit_bzero(void *p, size_t l);
-#endif
+int free_and_strndup(char **p, const char *s, size_t l);
char *string_erase(char *x);
return strlen(s);
}
+
+/* Like startswith(), but operates on arbitrary memory blocks */
+static inline void *memory_startswith(const void *p, size_t sz, const char *token) {
+ size_t n;
+
+ assert(token);
+
+ n = strlen(token);
+ if (sz < n)
+ return NULL;
+
+ assert(p);
+
+ if (memcmp(p, token, n) != 0)
+ return NULL;
+
+ return (uint8_t*) p + n;
+}
+
+/* Like startswith_no_case(), but operates on arbitrary memory blocks.
+ * It works only for ASCII strings.
+ */
+static inline void *memory_startswith_no_case(const void *p, size_t sz, const char *token) {
+ size_t n, i;
+
+ assert(token);
+
+ n = strlen(token);
+ if (sz < n)
+ return NULL;
+
+ assert(p);
+
+ for (i = 0; i < n; i++) {
+ if (ascii_tolower(((char *)p)[i]) != ascii_tolower(token[i]))
+ return NULL;
+ }
+
+ return (uint8_t*) p + n;
+}
projects / thirdparty / systemd.git / blobdiff