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authorLennart Poettering <lennart@poettering.net>2012-09-27 23:25:23 +0200
committerLennart Poettering <lennart@poettering.net>2012-09-28 00:55:24 +0200
commit8f14c8327b1c2b578bbf1235723a77931c3d0223 (patch)
treea4e77e066a3f7174a6c28afbf5c4c2dd98bd4fe7 /src/journal/journalctl.c
parent1b89884ba31cbe98f159ce2c7d6fac5f6a57698f (diff)
journalctl: add --cursor switch
Diffstat (limited to 'src/journal/journalctl.c')
-rw-r--r--src/journal/journalctl.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 62bdcb7c68..bac8729494 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -63,6 +63,7 @@ static bool arg_no_tail = false;
static bool arg_quiet = false;
static bool arg_merge = false;
static bool arg_this_boot = false;
+static const char *arg_cursor = NULL;
static const char *arg_directory = NULL;
static int arg_priorities = 0xFF;
static const char *arg_verify_key = NULL;
@@ -87,6 +88,7 @@ static int help(void) {
" --version Show package version\n"
" --no-pager Do not pipe output into a pager\n"
" -a --all Show all fields, including long and unprintable\n"
+ " -c --cursor=CURSOR Jump to the specified cursor\n"
" -f --follow Follow journal\n"
" -n --lines[=INTEGER] Number of journal entries to show\n"
" --no-tail Show all lines, even in follow mode\n"
@@ -148,6 +150,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "verify", no_argument, NULL, ARG_VERIFY },
{ "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
{ "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
+ { "cursor", no_argument, NULL, 'c' },
{ NULL, 0, NULL, 0 }
};
@@ -156,7 +159,7 @@ static int parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "hfo:an::qmbD:p:", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "hfo:an::qmbD:p:c:", options, NULL)) >= 0) {
switch (c) {
@@ -228,6 +231,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_directory = optarg;
break;
+ case 'c':
+ arg_cursor = optarg;
+ break;
+
case ARG_HEADER:
arg_action = ACTION_PRINT_HEADER;
break;
@@ -829,7 +836,16 @@ int main(int argc, char *argv[]) {
}
}
- if (arg_lines >= 0) {
+ if (arg_cursor) {
+ r = sd_journal_seek_cursor(j, arg_cursor);
+ if (r < 0) {
+ log_error("Failed to seek to cursor: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = sd_journal_next(j);
+
+ } else if (arg_lines >= 0) {
r = sd_journal_seek_tail(j);
if (r < 0) {
log_error("Failed to seek to tail: %s", strerror(-r));
@@ -837,6 +853,7 @@ int main(int argc, char *argv[]) {
}
r = sd_journal_previous_skip(j, arg_lines);
+
} else {
r = sd_journal_seek_head(j);
if (r < 0) {