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authorLennart Poettering <lennart@poettering.net>2015-09-23 19:39:51 +0200
committerLennart Poettering <lennart@poettering.net>2015-09-29 21:55:51 +0200
commit939c173f60c4cc1e2ce8cbf014910b13c53358bb (patch)
tree27183760f94a86957425ff9f9570f8433e3497c6 /src
parente4603df5cf80bbd7a7d51fc66fa6c60e042423bc (diff)
journal-cat: various modernizations
Diffstat (limited to 'src')
-rw-r--r--src/journal/cat.c24
1 files changed, 9 insertions, 15 deletions
diff --git a/src/journal/cat.c b/src/journal/cat.c
index 77bf7e3981..f9b279d7de 100644
--- a/src/journal/cat.c
+++ b/src/journal/cat.c
@@ -100,10 +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;
}
@@ -119,7 +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();
@@ -130,8 +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;
}
@@ -145,25 +144,20 @@ int main(int argc, char *argv[]) {
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;
}