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libbb: two new functions: wait_for_exitstatus(pid), xfchdir(fd)

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Bartosz Golaszewski proposed xfchdir()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2016-04-01 22:12:44 +02:00
parent 29b33b63d4
commit c4199f22d0
6 changed files with 22 additions and 15 deletions
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2
include/libbb.h
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@ -500,6 +500,7 @@ void xsetuid(uid_t uid) FAST_FUNC;
void xsetegid(gid_t egid) FAST_FUNC;
void xseteuid(uid_t euid) FAST_FUNC;
void xchdir(const char *path) FAST_FUNC;
void xfchdir(int fd) FAST_FUNC;
void xchroot(const char *path) FAST_FUNC;
void xsetenv(const char *key, const char *value) FAST_FUNC;
void bb_unsetenv(const char *key) FAST_FUNC;
@ -1021,6 +1022,7 @@ pid_t wait_any_nohang(int *wstat) FAST_FUNC;
* if (rc > 0) bb_error_msg("exit code: %d", rc & 0xff);
*/
int wait4pid(pid_t pid) FAST_FUNC;
int wait_for_exitstatus(pid_t pid) FAST_FUNC;
/* Same as wait4pid(spawn(argv)), but with NOFORK/NOEXEC if configured: */
int spawn_and_wait(char **argv) FAST_FUNC;
/* Does NOT check that applet is NOFORK, just blindly runs it */