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util: add realloc_multiply() helper
[elogind.git]
/
src
/
shared
/
util.h
diff --git
a/src/shared/util.h
b/src/shared/util.h
index 62eb60402d507a8260b6dcb69741cc44b820830f..8ddd1a5daf600f49a9e94249a2735e514a2b90ed 100644
(file)
--- a/
src/shared/util.h
+++ b/
src/shared/util.h
@@
-252,6
+252,7
@@
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);
char *replace_env(const char *format, char **env);
char **replace_env_argv(char **argv, char **env);
+int readlinkat_malloc(int fd, const char *p, char **ret);
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 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);
@@
-521,8
+522,6
@@
int terminal_vhangup(const char *name);
int vt_disallocate(const char *name);
int vt_disallocate(const char *name);
-int copy_file(const char *from, const char *to, int flags);
-
int symlink_atomic(const char *from, const char *to);
int fchmod_umask(int fd, mode_t mode);
int symlink_atomic(const char *from, const char *to);
int fchmod_umask(int fd, mode_t mode);
@@
-667,14
+666,21
@@
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
#define _cleanup_close_pair_ _cleanup_(close_pairp)
_malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
#define _cleanup_close_pair_ _cleanup_(close_pairp)
_malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
- if (_unlikely_(b
== 0 ||
a > ((size_t) -1) / b))
+ if (_unlikely_(b
!= 0 &&
a > ((size_t) -1) / b))
return NULL;
return malloc(a * b);
}
return NULL;
return malloc(a * b);
}
+_alloc_(2, 3) static inline void *realloc_multiply(void *p, size_t a, size_t b) {
+ if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
+ return NULL;
+
+ return realloc(p, a * b);
+}
+
_alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) {
_alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) {
- if (_unlikely_(b
== 0 ||
a > ((size_t) -1) / b))
+ if (_unlikely_(b
!= 0 &&
a > ((size_t) -1) / b))
return NULL;
return memdup(p, a * b);
return NULL;
return memdup(p, a * b);
@@
-706,6
+712,7
@@
typedef enum DrawSpecialChar {
DRAW_TRIANGULAR_BULLET,
DRAW_BLACK_CIRCLE,
DRAW_ARROW,
DRAW_TRIANGULAR_BULLET,
DRAW_BLACK_CIRCLE,
DRAW_ARROW,
+ DRAW_DASH,
_DRAW_SPECIAL_CHAR_MAX
} DrawSpecialChar;
_DRAW_SPECIAL_CHAR_MAX
} DrawSpecialChar;
@@
-942,3
+949,12
@@
union file_handle_union {
};
int update_reboot_param_file(const char *param);
};
int update_reboot_param_file(const char *param);
+
+int umount_recursive(const char *target, int flags);
+
+int bind_remount_recursive(const char *prefix, bool ro);
+
+int fflush_and_check(FILE *f);
+
+char *tempfn_xxxxxx(const char *p);
+char *tempfn_random(const char *p);