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Diffstat (limited to 'src/journal/journalctl.c')
-rw-r--r--src/journal/journalctl.c125
1 files changed, 94 insertions, 31 deletions
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 04cebff547..54ee6d8cc8 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -58,7 +58,7 @@ static OutputMode arg_output = OUTPUT_SHORT;
static bool arg_follow = false;
static bool arg_show_all = false;
static bool arg_no_pager = false;
-static int arg_lines = -1;
+static unsigned arg_lines = 0;
static bool arg_no_tail = false;
static bool arg_quiet = false;
static bool arg_merge = false;
@@ -70,6 +70,8 @@ static const char *arg_verify_key = NULL;
#ifdef HAVE_GCRYPT
static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC;
#endif
+static usec_t arg_since, arg_until;
+static bool arg_since_set = false, arg_until_set = false;
static enum {
ACTION_SHOW,
@@ -88,7 +90,9 @@ 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"
+ " -c --cursor=CURSOR Start showing entries from specified cursor\n"
+ " --since=DATE Start showing entries newer or of the specified date\n"
+ " --until=DATE Stop showing entries older or of the specified date\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"
@@ -126,7 +130,9 @@ static int parse_argv(int argc, char *argv[]) {
ARG_INTERVAL,
ARG_VERIFY,
ARG_VERIFY_KEY,
- ARG_DISK_USAGE
+ ARG_DISK_USAGE,
+ ARG_SINCE,
+ ARG_UNTIL
};
static const struct option options[] = {
@@ -151,6 +157,8 @@ static int parse_argv(int argc, char *argv[]) {
{ "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
{ "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
{ "cursor", required_argument, NULL, 'c' },
+ { "since", required_argument, NULL, ARG_SINCE },
+ { "until", required_argument, NULL, ARG_UNTIL },
{ NULL, 0, NULL, 0 }
};
@@ -197,8 +205,8 @@ static int parse_argv(int argc, char *argv[]) {
case 'n':
if (optarg) {
- r = safe_atoi(optarg, &arg_lines);
- if (r < 0 || arg_lines < 0) {
+ r = safe_atou(optarg, &arg_lines);
+ if (r < 0 || arg_lines <= 0) {
log_error("Failed to parse lines '%s'", optarg);
return -EINVAL;
}
@@ -324,6 +332,24 @@ static int parse_argv(int argc, char *argv[]) {
break;
}
+ case ARG_SINCE:
+ r = parse_timestamp(optarg, &arg_since);
+ if (r < 0) {
+ log_error("Failed to parse timestamp: %s", optarg);
+ return -EINVAL;
+ }
+ arg_since_set = true;
+ break;
+
+ case ARG_UNTIL:
+ r = parse_timestamp(optarg, &arg_until);
+ if (r < 0) {
+ log_error("Failed to parse timestamp: %s", optarg);
+ return -EINVAL;
+ }
+ arg_until_set = true;
+ break;
+
case '?':
return -EINVAL;
@@ -333,9 +359,19 @@ static int parse_argv(int argc, char *argv[]) {
}
}
- if (arg_follow && !arg_no_tail && arg_lines < 0)
+ if (arg_follow && !arg_no_tail && arg_lines <= 0)
arg_lines = 10;
+ if (arg_since_set && arg_until_set && arg_since_set > arg_until_set) {
+ log_error("--since= must be before --until=.");
+ return -EINVAL;
+ }
+
+ if (arg_cursor && arg_since_set) {
+ log_error("Please specify either --since= or --cursor=, not both.");
+ return -EINVAL;
+ }
+
return 1;
}
@@ -734,6 +770,7 @@ int main(int argc, char *argv[]) {
sd_id128_t previous_boot_id;
bool previous_boot_id_valid = false;
bool have_pager;
+ unsigned n_shown = 0;
log_parse_environment();
log_open();
@@ -815,36 +852,24 @@ int main(int argc, char *argv[]) {
if (r < 0)
goto finish;
- if (!arg_quiet) {
- usec_t start, end;
- char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];
-
- r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
+ if (arg_cursor) {
+ r = sd_journal_seek_cursor(j, arg_cursor);
if (r < 0) {
- log_error("Failed to get cutoff: %s", strerror(-r));
+ log_error("Failed to seek to cursor: %s", strerror(-r));
goto finish;
}
- if (r > 0) {
- if (arg_follow)
- printf("Logs begin at %s.\n", format_timestamp(start_buf, sizeof(start_buf), start));
- else
- printf("Logs begin at %s, end at %s.\n",
- format_timestamp(start_buf, sizeof(start_buf), start),
- format_timestamp(end_buf, sizeof(end_buf), end));
- }
- }
+ r = sd_journal_next(j);
- if (arg_cursor) {
- r = sd_journal_seek_cursor(j, arg_cursor);
+ } else if (arg_since_set) {
+ r = sd_journal_seek_realtime_usec(j, arg_since);
if (r < 0) {
- log_error("Failed to seek to cursor: %s", strerror(-r));
+ log_error("Failed to seek to date: %s", strerror(-r));
goto finish;
}
-
r = sd_journal_next(j);
- } else if (arg_lines >= 0) {
+ } else if (arg_lines > 0) {
r = sd_journal_seek_tail(j);
if (r < 0) {
log_error("Failed to seek to tail: %s", strerror(-r));
@@ -871,12 +896,34 @@ int main(int argc, char *argv[]) {
on_tty();
have_pager = !arg_no_pager && !arg_follow && pager_open();
+ if (!arg_quiet) {
+ usec_t start, end;
+ char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];
+
+ r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
+ if (r < 0) {
+ log_error("Failed to get cutoff: %s", strerror(-r));
+ goto finish;
+ }
+
+ if (r > 0) {
+ if (arg_follow)
+ printf("---- Logs begin at %s.\n", format_timestamp(start_buf, sizeof(start_buf), start));
+ else
+ printf("---- Logs begin at %s, end at %s.\n",
+ format_timestamp(start_buf, sizeof(start_buf), start),
+ format_timestamp(end_buf, sizeof(end_buf), end));
+ }
+ }
+
for (;;) {
for (;;) {
- int flags =
- arg_show_all * OUTPUT_SHOW_ALL |
- have_pager * OUTPUT_FULL_WIDTH |
- on_tty() * OUTPUT_COLOR;
+ int flags;
+
+ if (arg_lines > 0 && n_shown >= arg_lines) {
+ r = 0;
+ goto finish;
+ }
if (need_seek) {
r = sd_journal_next(j);
@@ -889,6 +936,16 @@ int main(int argc, char *argv[]) {
if (r == 0)
break;
+ if (arg_until_set) {
+ usec_t usec;
+
+ r = sd_journal_get_realtime_usec(j, &usec);
+ if (r < 0) {
+ log_error("Failed to determine timestamp: %s", strerror(-r));
+ goto finish;
+ }
+ }
+
if (!arg_merge) {
sd_id128_t boot_id;
@@ -896,18 +953,24 @@ int main(int argc, char *argv[]) {
if (r >= 0) {
if (previous_boot_id_valid &&
!sd_id128_equal(boot_id, previous_boot_id))
- printf(ANSI_HIGHLIGHT_ON "----- Reboot -----" ANSI_HIGHLIGHT_OFF "\n");
+ printf(ANSI_HIGHLIGHT_ON "---- Reboot ----" ANSI_HIGHLIGHT_OFF "\n");
previous_boot_id = boot_id;
previous_boot_id_valid = true;
}
}
+ flags =
+ arg_show_all * OUTPUT_SHOW_ALL |
+ have_pager * OUTPUT_FULL_WIDTH |
+ on_tty() * OUTPUT_COLOR;
+
r = output_journal(stdout, j, arg_output, 0, flags);
if (r < 0)
goto finish;
need_seek = true;
+ n_shown++;
}
if (!arg_follow)
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-26 10:59:35 +0000