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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2026-01-01 13:47:45 +0000 |
|---|---|---|
| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2026-01-01 13:47:45 +0000 |
| commit | e99182dab3093f1645f9e4ff216aa752d7443fb1 (patch) | |
| tree | 175a373c32a58783edd41901d4baf6e68626c7ec /src/libstddjb/fd_write.c | |
| parent | 45137c6466050c9468931713a7504eae3d08bfce (diff) | |
| download | skalibs-e99182dab3093f1645f9e4ff216aa752d7443fb1.tar.gz | |
Save/restore errno in all safe wrappers
Diffstat (limited to 'src/libstddjb/fd_write.c')
| -rw-r--r-- | src/libstddjb/fd_write.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libstddjb/fd_write.c b/src/libstddjb/fd_write.c index a93c2d9..96bdaf6 100644 --- a/src/libstddjb/fd_write.c +++ b/src/libstddjb/fd_write.c @@ -2,12 +2,15 @@ #include <unistd.h> #include <errno.h> + #include <skalibs/allreadwrite.h> ssize_t fd_write (int fd, char const *buf, size_t len) { + int e = errno ; ssize_t r ; do r = write(fd, buf, len) ; - while ((r == -1) && (errno == EINTR)) ; + while (r == -1 && errno == EINTR) ; + if (r >= 0) errno = e ; return r ; } |