git: f8a926bebe81 - stable/13 - libc: add scandirat(3)
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Date: Wed, 31 Aug 2022 01:32:24 UTC
The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=f8a926bebe819c09e04261fb212cacbf3b1adca0 commit f8a926bebe819c09e04261fb212cacbf3b1adca0 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2022-08-23 03:30:06 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2022-08-31 01:20:28 +0000 libc: add scandirat(3) (cherry picked from commit 9fb8e8eede5b48eda7dc39f61d815595c14e5752) --- include/dirent.h | 5 +++++ lib/libc/gen/Symbol.map | 1 + lib/libc/gen/scandir.c | 21 +++++++++++++++++++++ 3 files changed, 27 insertions(+) diff --git a/include/dirent.h b/include/dirent.h index 702153e28fc0..047206258471 100644 --- a/include/dirent.h +++ b/include/dirent.h @@ -131,6 +131,11 @@ int scandir_b(const char *, struct dirent ***, int (^)(const struct dirent **, const struct dirent **)); #endif #endif +#if __BSD_VISIBLE +int scandirat(int, const char *, struct dirent ***, + int (*)(const struct dirent *), int (*)(const struct dirent **, + const struct dirent **)); +#endif #if __XSI_VISIBLE void seekdir(DIR *, long); long telldir(DIR *); diff --git a/lib/libc/gen/Symbol.map b/lib/libc/gen/Symbol.map index 012c9ff11f04..74676ffe2270 100644 --- a/lib/libc/gen/Symbol.map +++ b/lib/libc/gen/Symbol.map @@ -439,6 +439,7 @@ FBSD_1.7 { posix_spawn_file_actions_addchdir_np; posix_spawn_file_actions_addclosefrom_np; posix_spawn_file_actions_addfchdir_np; + scandirat; sched_getaffinity; sched_setaffinity; sched_getcpu; diff --git a/lib/libc/gen/scandir.c b/lib/libc/gen/scandir.c index 4cfc823e4f94..3a891b0ad3f2 100644 --- a/lib/libc/gen/scandir.c +++ b/lib/libc/gen/scandir.c @@ -42,8 +42,10 @@ __FBSDID("$FreeBSD$"); #include "namespace.h" #include <dirent.h> +#include <fcntl.h> #include <stdlib.h> #include <string.h> +#include <unistd.h> #include "un-namespace.h" #ifdef I_AM_SCANDIR_B @@ -159,6 +161,25 @@ scandir(const char *dirname, struct dirent ***namelist, } #ifndef I_AM_SCANDIR_B +int +scandirat(int dirfd, const char *dirname, struct dirent ***namelist, + int (*select)(const struct dirent *), int (*dcomp)(const struct dirent **, + const struct dirent **)) +{ + DIR *dirp; + int fd; + + fd = _openat(dirfd, dirname, O_RDONLY | O_DIRECTORY | O_CLOEXEC); + if (fd == -1) + return (-1); + dirp = fdopendir(fd); + if (dirp == NULL) { + _close(fd); + return (-1); + } + return (scandir_dirp(dirp, namelist, select, dcomp)); +} + /* * Alphabetic order comparison routine for those who want it. * POSIX 2008 requires that alphasort() uses strcoll().