X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=69a47653aa4507023e45e5694b0a1b63c2589b4d;hb=5c0d398dfc4d79df2209515d28cafd9dc129838e;hp=4be0b617731ea7569b9343ac870df7c03bbc0f62;hpb=763c7aa288485cf5ab627fe1d25ff58e76f9dacb;p=elogind.git diff --git a/src/shared/util.h b/src/shared/util.h index 4be0b6177..69a47653a 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -329,6 +329,7 @@ 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); +char* dirname_malloc(const char *path); void rename_process(const char name[8]); @@ -429,9 +430,11 @@ 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); char* uid_to_name(uid_t uid); +char* gid_to_name(gid_t gid); int glob_exists(const char *path); @@ -517,7 +520,6 @@ bool in_initrd(void); void warn_melody(void); -int get_shell(char **ret); int get_home_dir(char **ret); static inline void freep(void *p) { @@ -579,7 +581,7 @@ int on_ac_power(void); int search_and_fopen(const char *path, const char *mode, const char **search, FILE **_f); int search_and_fopen_nulstr(const char *path, const char *mode, const char *search, FILE **_f); -int create_tmp_dir(char template[], mode_t mask, bool need_sticky, char** dir_name); +int create_tmp_dir(char template[], char** dir_name); #define FOREACH_LINE(line, f, on_error) \ for (;;) \ @@ -593,7 +595,7 @@ int create_tmp_dir(char template[], mode_t mask, bool need_sticky, char** dir_na #define FOREACH_DIRENT(de, d, on_error) \ for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \ if (!de) { \ - if (errno != 0) { \ + if (errno > 0) { \ on_error; \ } \ break; \ @@ -605,3 +607,31 @@ static inline void *mempset(void *s, int c, size_t n) { memset(s, c, n); return (char*)s + n; } + +char *hexmem(const void *p, size_t l); +void *unhexmem(const char *p, size_t l); + +char *strextend(char **x, ...); +char *strrep(const char *s, unsigned n); + +void* greedy_realloc(void **p, size_t *allocated, size_t need); + +static inline void _reset_errno_(int *saved_errno) { + errno = *saved_errno; +} + +#define PROTECT_ERRNO __attribute__((cleanup(_reset_errno_))) int _saved_errno_ = errno + +struct umask_struct { + mode_t mask; + bool quit; +}; + +static inline void _reset_umask_(struct umask_struct *s) { + umask(s->mask); +}; + +#define RUN_WITH_UMASK(mask) \ + for (__attribute__((cleanup(_reset_umask_))) struct umask_struct _saved_umask_ = { umask(mask), false }; \ + !_saved_umask_.quit ; \ + _saved_umask_.quit = true)