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Diffstat (limited to 'src/journal/cat.c')
-rw-r--r--src/journal/cat.c44
1 files changed, 17 insertions, 27 deletions
diff --git a/src/journal/cat.c b/src/journal/cat.c
index 2e236f0004..f9b279d7de 100644
--- a/src/journal/cat.c
+++ b/src/journal/cat.c
@@ -19,17 +19,16 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdio.h>
-#include <getopt.h>
-#include <unistd.h>
-#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
-#include "systemd/sd-journal.h"
+#include "sd-journal.h"
#include "util.h"
-#include "build.h"
static char *arg_identifier = NULL;
static int arg_priority = LOG_INFO;
@@ -76,9 +75,7 @@ static int parse_argv(int argc, char *argv[]) {
return 0;
case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
+ return version();
case 't':
free(arg_identifier);
@@ -95,7 +92,7 @@ static int parse_argv(int argc, char *argv[]) {
arg_priority = log_level_from_string(optarg);
if (arg_priority < 0) {
log_error("Failed to parse priority value.");
- return arg_priority;
+ return -EINVAL;
}
break;
@@ -103,10 +100,9 @@ static int parse_argv(int argc, char *argv[]) {
int k;
k = parse_boolean(optarg);
- if (k < 0) {
- log_error("Failed to parse level prefix value.");
- return k;
- }
+ if (k < 0)
+ return log_error_errno(k, "Failed to parse level prefix value.");
+
arg_level_prefix = k;
break;
}
@@ -122,7 +118,8 @@ static int parse_argv(int argc, char *argv[]) {
}
int main(int argc, char *argv[]) {
- int r, fd = -1, saved_stderr = -1;
+ _cleanup_close_ int fd = -1, saved_stderr = -1;
+ int r;
log_parse_environment();
log_open();
@@ -133,8 +130,7 @@ int main(int argc, char *argv[]) {
fd = sd_journal_stream_fd(arg_identifier, arg_priority, arg_level_prefix);
if (fd < 0) {
- log_error_errno(fd, "Failed to create stream fd: %m");
- r = fd;
+ r = log_error_errno(fd, "Failed to create stream fd: %m");
goto finish;
}
@@ -142,32 +138,26 @@ int main(int argc, char *argv[]) {
if (dup3(fd, STDOUT_FILENO, 0) < 0 ||
dup3(fd, STDERR_FILENO, 0) < 0) {
- log_error_errno(errno, "Failed to duplicate fd: %m");
- r = -errno;
+ r = log_error_errno(errno, "Failed to duplicate fd: %m");
goto finish;
}
if (fd >= 3)
safe_close(fd);
-
fd = -1;
if (argc <= optind)
- execl("/bin/cat", "/bin/cat", NULL);
+ (void) execl("/bin/cat", "/bin/cat", NULL);
else
- execvp(argv[optind], argv + optind);
-
+ (void) execvp(argv[optind], argv + optind);
r = -errno;
/* Let's try to restore a working stderr, so we can print the error message */
if (saved_stderr >= 0)
- dup3(saved_stderr, STDERR_FILENO, 0);
+ (void) dup3(saved_stderr, STDERR_FILENO, 0);
log_error_errno(r, "Failed to execute process: %m");
finish:
- safe_close(fd);
- safe_close(saved_stderr);
-
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}