X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=bea43fc4bcb5aba47da812ad4f1147666d5bb104;hb=f5b7a3fb53bc37e4d2cd042094a4be0d6bb1348a;hp=27b21f97cc4109da6e1e6bb0b3a7be8845f44103;hpb=076a24adf4bfbb9c5aa8167e102c253c7e1c651e;p=elogind.git diff --git a/src/shared/util.h b/src/shared/util.h index 27b21f97c..bea43fc4b 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -36,7 +36,9 @@ #include #include #include +#include +#include #include "macro.h" #include "time-util.h" @@ -328,6 +330,7 @@ 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]); @@ -428,9 +431,11 @@ 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); @@ -516,15 +521,25 @@ bool in_initrd(void); void warn_melody(void); -int get_shell(char **ret); int get_home_dir(char **ret); -void freep(void *p); +static inline void freep(void *p) { + free(*(void**) p); +} + void fclosep(FILE **f); void pclosep(FILE **f); void closep(int *fd); void closedirp(DIR **d); -void umaskp(mode_t *u); +static inline void umaskp(mode_t *u) { + umask(*u); +} + +static inline void journal_closep(sd_journal **j) { + sd_journal_close(*j); +} + +#define _cleanup_globfree_ __attribute__((cleanup(globfree))) _malloc_ static inline void *malloc_multiply(size_t a, size_t b) { if (_unlikely_(b == 0 || a > ((size_t) -1) / b)) @@ -569,6 +584,7 @@ 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[], char** dir_name); #define FOREACH_LINE(line, f, on_error) \ for (;;) \ @@ -582,10 +598,51 @@ int search_and_fopen_nulstr(const char *path, const char *mode, const char *sear #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; \ } else if (ignore_file((de)->d_name)) \ continue; \ else + +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) + +static inline unsigned u64log2(uint64_t n) { + return (n > 1) ? __builtin_clzll(n) ^ 63U : 0; +} + +static inline bool logind_running(void) { + return access("/run/systemd/seats/", F_OK) >= 0; +}