[PATCH] journalctl: support /usr/bin/nginx, etc
Shawn Landden
shawnlandden at gmail.com
Tue May 29 20:00:56 PDT 2012
---
TODO | 2 +-
src/journal/journalctl.c | 28 +++++++++++++++++++++++++++-
2 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/TODO b/TODO
index 3b3c451..f55a586 100644
--- a/TODO
+++ b/TODO
@@ -39,7 +39,7 @@ Features:
- graphical sessions will show a dialog, like they do already today
- use udev to tag input devices we want to subscribe to
-* journalctl /dev/sda, journalctl /usr/bin/httpd, journalctl --device=b12:8 (--device=n12, --device=+usb:1-1)
+* journalctl /dev/sda, journalctl --device=b12:8 (--device=n12, --device=+usb:1-1)
* make use of /sys/power/wake_lock in inhibitors
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 58778a8..dbe0c76 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -29,6 +29,8 @@
#include <sys/poll.h>
#include <time.h>
#include <getopt.h>
+#include <sys/stat.h>
+#include <limits.h>
#include <systemd/sd-journal.h>
@@ -38,6 +40,8 @@
#include "pager.h"
#include "logs-show.h"
+#define SD_JOURNALCTL_EXE "_EXE="
+
static OutputMode arg_output = OUTPUT_SHORT;
static bool arg_follow = false;
static bool arg_show_all = false;
@@ -205,6 +209,9 @@ int main(int argc, char *argv[]) {
sd_journal *j = NULL;
unsigned line = 0;
bool need_seek = false;
+ struct stat st;
+ char* journal_exe_buff;
+ char path[PATH_MAX+1];
log_parse_environment();
log_open();
@@ -230,7 +237,26 @@ int main(int argc, char *argv[]) {
}
for (i = optind; i < argc; i++) {
- r = sd_journal_add_match(j, argv[i], strlen(argv[i]));
+ if (strchr(argv[i], '=')) {
+ r = sd_journal_add_match(j, argv[i], strlen(argv[i]));
+ } else {
+ if (stat(argv[i], &st) < 0) {
+ log_error("Failed to add match: %s", strerror(-r));
+ goto finish; /* maybe try sd_journal_add_match() when stat() fails,
+ * even thought we know there is no '=' ? */
+ } else if (S_ISREG(st.st_mode) &&
+ S_IXUSR & st.st_mode) {
+ realpath(argv[i], &path[0]);
+ journal_exe_buff = malloc(strlen(SD_JOURNALCTL_EXE) + strlen(path) + 1);
+ journal_exe_buff = strcpy(journal_exe_buff, SD_JOURNALCTL_EXE);
+ strncat(journal_exe_buff, path, strlen(path));
+ r = sd_journal_add_match(j, journal_exe_buff, strlen(journal_exe_buff));
+ free(journal_exe_buff);
+ } else {
+ log_error("File is not a regular file or is not executable: %s", argv[i]);
+ goto finish;
+ }
+ }
if (r < 0) {
log_error("Failed to add match: %s", strerror(-r));
goto finish;
--
1.7.10
--=-t3KpjAmdETD+3uS1IecL--
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