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authorLaurent Bercot <ska-skaware@skarnet.org>2015-05-05 12:50:24 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2015-05-05 12:50:24 +0000
commit7d06701bfaad445e48832ba4fd189ffc36e34387 (patch)
treec3d0d5da0d9328d950a4da4cc3a4f9d84a3e7033 /src/libunixonacid
parent73ebb5709dc2a5aaee1e676a3c1b0bb7cebcd392 (diff)
downloadskalibs-7d06701bfaad445e48832ba4fd189ffc36e34387.tar.xz
- add stat_at
- make case_diff* work as a function is more cases - make sig_number case-insensitive - make child signal unblocking work in child_spawn*
Diffstat (limited to 'src/libunixonacid')
-rw-r--r--src/libunixonacid/stat_at.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/libunixonacid/stat_at.c b/src/libunixonacid/stat_at.c
new file mode 100644
index 0000000..e8b049f
--- /dev/null
+++ b/src/libunixonacid/stat_at.c
@@ -0,0 +1,77 @@
+/* ISC license. */
+
+#include <skalibs/sysdeps.h>
+
+#ifdef SKALIBS_HASOPENAT
+
+#ifndef _ATFILE_SOURCE
+#define _ATFILE_SOURCE
+#endif
+
+#include <skalibs/nonposix.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <skalibs/unix-transactional.h>
+
+int stat_at (int dirfd, char const *file, struct stat *st)
+{
+ return fstatat(dirfd, file, st, 0) ;
+}
+
+int lstat_at (int dirfd, char const *file, struct stat *st)
+{
+ return fstatat(dirfd, file, st, AT_SYMLINK_NOFOLLOW) ;
+}
+
+#else
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/unix-transactional.h>
+
+static int fstat_at (int dirfd, char const *file, struct stat *st, int (*dostat)(char const *, struct stat *))
+{
+ int r ;
+ int fdhere = open_read(".") ;
+ if (fdhere < 0) return -1 ;
+ if (fd_chdir(dirfd) < 0)
+ {
+ register int e = errno ;
+ fd_close(fdhere) ;
+ errno = e ;
+ return -1 ;
+ }
+ r = (*dostat)(file, st) ;
+ if (r < 0)
+ {
+ register int e = errno ;
+ fd_chdir(fdhere) ;
+ fd_close(fdhere) ;
+ errno = e ;
+ return -1 ;
+ }
+ if (fd_chdir(fdhere) < 0)
+ {
+ register int e = errno ;
+ fd_close(fdhere) ;
+ errno = e ;
+ return -1 ;
+ }
+ return r ;
+}
+
+int stat_at (int dirfd, char const *file, struct stat *st)
+{
+ return fstat_at(dirfd, file, st, &stat) ;
+}
+
+int lstat_at (int dirfd, char const *file, struct stat *st)
+{
+ return fstat_at(dirfd, file, st, &lstat) ;
+}
+
+#endif