X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=70c20fdcf10cb6a4ec5e2c677d9233bf314d4971;hp=a41348e32ead839f63c583278aa512913656b80e;hb=03e334a1c7dc8c20c38902aa039440763acc9b17;hpb=9f5650aecb22a1d864b2c0b749910556795f1490 diff --git a/src/shared/util.h b/src/shared/util.h index a41348e32..70c20fdcf 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -58,6 +58,14 @@ # error Unknown uid_t size #endif +#if SIZEOF_GID_T == 4 +# define GID_FMT "%" PRIu32 +#elif SIZEOF_GID_T == 2 +# define GID_FMT "%" PRIu16 +#else +# error Unknown gid_t size +#endif + #include "macro.h" #include "time-util.h" @@ -141,11 +149,13 @@ char *endswith(const char *s, const char *postfix) _pure_; bool first_word(const char *s, const char *word) _pure_; int close_nointr(int fd); -void close_nointr_nofail(int fd); +int safe_close(int fd); + void close_many(const int fds[], unsigned n_fd); +int parse_size(const char *t, off_t base, off_t *size); + int parse_boolean(const char *v) _pure_; -int parse_bytes(const char *t, off_t *bytes); int parse_pid(const char *s, pid_t* ret_pid); int parse_uid(const char *s, uid_t* ret_uid); #define parse_gid(s, ret_uid) parse_uid(s, ret_uid) @@ -442,6 +452,8 @@ static inline const char *ansi_highlight_off(void) { return on_tty() ? ANSI_HIGHLIGHT_OFF : ""; } +int files_same(const char *filea, const char *fileb); + int running_in_chroot(void); char *ellipsize(const char *s, size_t length, unsigned percent); @@ -472,7 +484,7 @@ bool tty_is_console(const char *tty) _pure_; int vtnr_from_tty(const char *tty); const char *default_term_for_tty(const char *tty); -void execute_directory(const char *directory, DIR *_d, char *argv[]); +void execute_directory(const char *directory, DIR *_d, usec_t timeout, char *argv[]); int kill_and_sigcont(pid_t pid, int sig); @@ -520,7 +532,11 @@ char *strjoin(const char *x, ...) _sentinel_; bool is_main_thread(void); -bool in_charset(const char *s, const char* charset) _pure_; +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); @@ -605,8 +621,7 @@ static inline void freep(void *p) { struct __useless_struct_to_allow_trailing_semicolon__ static inline void closep(int *fd) { - if (*fd >= 0) - close_nointr_nofail(*fd); + safe_close(*fd); } static inline void umaskp(mode_t *u) { @@ -681,8 +696,8 @@ 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 **search, FILE **_f); -int search_and_fopen_nulstr(const char *path, const char *mode, const char *search, FILE **_f); +int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f); +int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f); #define FOREACH_LINE(line, f, on_error) \ for (;;) \ @@ -722,6 +737,15 @@ void* greedy_realloc0(void **p, size_t *allocated, size_t need); #define GREEDY_REALLOC0(array, allocated, need) \ greedy_realloc0((void**) &(array), &(allocated), sizeof((array)[0]) * (need)) +#define GREEDY_REALLOC0_T(array, count, need) \ + ({ \ + size_t _size = (count) * sizeof((array)[0]); \ + void *_ptr = GREEDY_REALLOC0((array), _size, (need)); \ + if (_ptr) \ + (count) = _size / sizeof((array)[0]); \ + _ptr; \ + }) + static inline void _reset_errno_(int *saved_errno) { errno = *saved_errno; } @@ -758,6 +782,12 @@ static inline unsigned u32ctz(uint32_t n) { #endif } +static inline int log2i(int x) { + assert(x > 0); + + return __SIZEOF_INT__ * 8 - __builtin_clz(x) - 1; +} + static inline bool logind_running(void) { return access("/run/systemd/seats/", F_OK) >= 0; } @@ -793,6 +823,19 @@ int unlink_noerrno(const char *path); _c_; \ }) +#define strappenda3(a, b, c) \ + ({ \ + const char *_a_ = (a), *_b_ = (b), *_c_ = (c); \ + char *_d_; \ + size_t _x_, _y_, _z_; \ + _x_ = strlen(_a_); \ + _y_ = strlen(_b_); \ + _z_ = strlen(_c_); \ + _d_ = alloca(_x_ + _y_ + _z_ + 1); \ + strcpy(stpcpy(stpcpy(_d_, _a_), _b_), _c_); \ + _d_; \ + }) + #define procfs_file_alloca(pid, field) \ ({ \ pid_t _pid_ = (pid); \ @@ -851,7 +894,7 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size, } int proc_cmdline(char **ret); -int parse_proc_cmdline(int (*parse_word)(const char *word)); +int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value)); int container_get_leader(const char *machine, pid_t *pid); @@ -870,3 +913,12 @@ int mkostemp_safe(char *pattern, int flags); int open_tmpfile(const char *path, int flags); int fd_warn_permissions(const char *path, int fd); + +unsigned long personality_from_string(const char *p); +const char *personality_to_string(unsigned long); + +uint64_t physical_memory(void); + +char* mount_test_option(const char *haystack, const char *needle); + +void hexdump(FILE *f, const void *p, size_t s);