diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/libbb.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h index 32e099b54..67fd2af21 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -263,6 +263,13 @@ char *xrealloc_getcwd_or_warn(char *cwd); char *xmalloc_readlink_or_warn(const char *path); char *xmalloc_realpath(const char *path); extern void xstat(const char *filename, struct stat *buf); +/* Unlike waitpid, waits ONLY for one process, + * It's safe to pass negative 'pids' from failed [v]fork - + * wait4pid will return -1 and ECHILD in errno. + * IOW: rc = wait4pid(spawn(argv)); + * if (rc < 0) bb_perror_msg("%s", argv[0]); + * if (rc > 0) bb_error_msg("exit code: %d", rc); + */ extern int wait4pid(int pid); extern void xsetgid(gid_t gid); extern void xsetuid(uid_t uid); |