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-rw-r--r--lib/libalpm/util.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c
index 4a4847de..1e554632 100644
--- a/lib/libalpm/util.c
+++ b/lib/libalpm/util.c
@@ -446,6 +446,16 @@ ssize_t _alpm_files_in_directory(alpm_handle_t *handle, const char *path,
return files;
}
+static int should_retry(int errnum)
+{
+ return errnum == EAGAIN
+/* EAGAIN may be the same value as EWOULDBLOCK (POSIX.1) - prevent GCC warning */
+#if EAGAIN != EWOULDBLOCK
+ || errnum == EWOULDBLOCK
+#endif
+ || errnum == EINTR;
+}
+
static int _alpm_chroot_write_to_child(alpm_handle_t *handle, int fd,
char *buf, ssize_t *buf_size, ssize_t buf_limit,
_alpm_cb_io out_cb, void *cb_ctx)
@@ -476,7 +486,7 @@ static int _alpm_chroot_write_to_child(alpm_handle_t *handle, int fd,
/* write was successful, remove the written data from the buffer */
*buf_size -= nwrite;
memmove(buf, buf + nwrite, *buf_size);
- } else if(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) {
+ } else if(should_retry(errno)) {
/* nothing written, try again later */
} else {
_alpm_log(handle, ALPM_LOG_ERROR,
@@ -530,7 +540,7 @@ static int _alpm_chroot_read_from_child(alpm_handle_t *handle, int fd,
_alpm_chroot_process_output(handle, buf);
}
return -1;
- } else if(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) {
+ } else if(should_retry(errno)) {
/* nothing read, try again */
} else {
/* read error */