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-rw-r--r--src/journal/journalctl.c347
-rw-r--r--src/journal/sd-journal.c2
-rw-r--r--src/util.c31
-rw-r--r--src/util.h5
4 files changed, 345 insertions, 40 deletions
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index c947730441..6f4342e597 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -27,15 +27,328 @@
#include <unistd.h>
#include <stdlib.h>
#include <sys/poll.h>
+#include <time.h>
#include "sd-journal.h"
#include "log.h"
+#include "util.h"
-static bool arg_follow = true;
+#define PRINT_THRESHOLD 128
+
+static enum {
+ OUTPUT_SHORT,
+ OUTPUT_VERBOSE,
+ OUTPUT_EXPORT,
+ OUTPUT_JSON,
+ _OUTPUT_MAX
+} arg_output = OUTPUT_JSON;
+
+static bool arg_follow = false;
+static bool arg_show_all = false;
+
+static bool contains_unprintable(const void *p, size_t l) {
+ const char *j;
+
+ for (j = p; j < (const char *) p + l; j++)
+ if (*j < ' ' || *j >= 127)
+ return true;
+
+ return false;
+}
+
+static int output_short(sd_journal *j, unsigned line) {
+ int r;
+ uint64_t realtime;
+ time_t t;
+ struct tm tm;
+ char buf[64];
+ const void *data;
+ size_t length;
+ size_t n = 0;
+
+ assert(j);
+
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0) {
+ log_error("Failed to get realtime: %s", strerror(-r));
+ return r;
+ }
+
+ t = (time_t) (realtime / USEC_PER_SEC);
+ if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)) <= 0) {
+ log_error("Failed to format time.");
+ return -EINVAL;
+ }
+
+ fputs(buf, stdout);
+ n += strlen(buf);
+
+ if (sd_journal_get_data(j, "_HOSTNAME", &data, &length) >= 0 &&
+ (arg_show_all || (!contains_unprintable(data, length) &&
+ length < PRINT_THRESHOLD))) {
+ printf(" %.*s", (int) length - 10, ((const char*) data) + 10);
+ n += length - 10 + 1;
+ }
+
+ if (sd_journal_get_data(j, "MESSAGE", &data, &length) >= 0) {
+ if (arg_show_all)
+ printf(" %.*s", (int) length - 8, ((const char*) data) + 8);
+ else if (contains_unprintable(data, length))
+ fputs(" [blob data]", stdout);
+ else if (length - 8 + n < columns())
+ printf(" %.*s", (int) length - 8, ((const char*) data) + 8);
+ else if (n < columns()) {
+ char *e;
+
+ e = ellipsize_mem((const char *) data + 8, length - 8, columns() - n - 2, 90);
+
+ if (!e)
+ printf(" %.*s", (int) length - 8, ((const char*) data) + 8);
+ else
+ printf(" %s", e);
+
+ free(e);
+ }
+ }
+
+ fputc('\n', stdout);
+
+ return 0;
+}
+
+static int output_verbose(sd_journal *j, unsigned line) {
+ const void *data;
+ size_t length;
+ char *cursor;
+ uint64_t realtime;
+ char ts[FORMAT_TIMESTAMP_MAX];
+ int r;
+
+ assert(j);
+
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0) {
+ log_error("Failed to get realtime timestamp: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_journal_get_cursor(j, &cursor);
+ if (r < 0) {
+ log_error("Failed to get cursor: %s", strerror(-r));
+ return r;
+ }
+
+ printf("%s [%s]\n",
+ format_timestamp(ts, sizeof(ts), realtime),
+ cursor);
+
+ free(cursor);
+
+ SD_JOURNAL_FOREACH_DATA(j, data, length) {
+ if (!arg_show_all && (length > PRINT_THRESHOLD ||
+ contains_unprintable(data, length))) {
+ const char *c;
+
+ c = memchr(data, '=', length);
+ if (!c) {
+ log_error("Invalid field.");
+ return -EINVAL;
+ }
+
+ printf("\t%.*s=[blob data]\n",
+ (int) (c - (const char*) data),
+ (const char*) data);
+ } else
+ printf("\t%.*s\n", (int) length, (const char*) data);
+ }
+
+ return 0;
+}
+
+static int output_export(sd_journal *j, unsigned line) {
+ sd_id128_t boot_id;
+ char sid[33];
+ int r;
+ usec_t realtime, monotonic;
+ char *cursor;
+ const void *data;
+ size_t length;
+
+ assert(j);
+
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0) {
+ log_error("Failed to get realtime timestamp: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id);
+ if (r < 0) {
+ log_error("Failed to get monotonic timestamp: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_journal_get_cursor(j, &cursor);
+ if (r < 0) {
+ log_error("Failed to get cursor: %s", strerror(-r));
+ return r;
+ }
+
+ printf(".cursor=%s\n"
+ ".realtime=%llu\n"
+ ".monotonic=%llu\n"
+ ".boot_id=%s\n",
+ cursor,
+ (unsigned long long) realtime,
+ (unsigned long long) monotonic,
+ sd_id128_to_string(boot_id, sid));
+
+ free(cursor);
+
+ SD_JOURNAL_FOREACH_DATA(j, data, length) {
+
+ if (contains_unprintable(data, length)) {
+ const char *c;
+ uint64_t le64;
+
+ c = memchr(data, '=', length);
+ if (!c) {
+ log_error("Invalid field.");
+ return -EINVAL;
+ }
+
+ fwrite(data, c - (const char*) data, 1, stdout);
+ fputc('\n', stdout);
+ le64 = htole64(length - (c - (const char*) data) - 1);
+ fwrite(&le64, sizeof(le64), 1, stdout);
+ fwrite(c + 1, length - (c - (const char*) data) - 1, 1, stdout);
+ } else
+ fwrite(data, length, 1, stdout);
+
+ fputc('\n', stdout);
+ }
+
+ fputc('\n', stdout);
+
+ return 0;
+}
+
+static void json_escape(const char* p, size_t l) {
+
+ if (contains_unprintable(p, l)) {
+ bool not_first = false;
+
+ fputs("[ ", stdout);
+
+ while (l > 0) {
+ if (not_first)
+ printf(", %u", (uint8_t) *p);
+ else {
+ not_first = true;
+ printf("%u", (uint8_t) *p);
+ }
+
+ p++;
+ l--;
+ }
+
+ fputs(" ]", stdout);
+ } else {
+ fputc('\"', stdout);
+
+ while (l > 0) {
+ if (*p == '"' || *p == '\\') {
+ fputc('\\', stdout);
+ fputc(*p, stdout);
+ } else
+ fputc(*p, stdout);
+
+ p++;
+ l--;
+ }
+
+ fputc('\"', stdout);
+ }
+}
+
+static int output_json(sd_journal *j, unsigned line) {
+ uint64_t realtime, monotonic;
+ char *cursor;
+ const void *data;
+ size_t length;
+ sd_id128_t boot_id;
+ char sid[33];
+ int r;
+
+ assert(j);
+
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0) {
+ log_error("Failed to get realtime timestamp: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id);
+ if (r < 0) {
+ log_error("Failed to get monotonic timestamp: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_journal_get_cursor(j, &cursor);
+ if (r < 0) {
+ log_error("Failed to get cursor: %s", strerror(-r));
+ return r;
+ }
+
+ if (line == 1)
+ fputc('\n', stdout);
+ else
+ fputs(",\n", stdout);
+
+ printf("{\n"
+ "\t\".cursor\" : \"%s\",\n"
+ "\t\".realtime\" : %llu,\n"
+ "\t\".monotonic\" : %llu,\n"
+ "\t\".boot_id\" : \"%s\"",
+ cursor,
+ (unsigned long long) realtime,
+ (unsigned long long) monotonic,
+ sd_id128_to_string(boot_id, sid));
+
+ free(cursor);
+
+ SD_JOURNAL_FOREACH_DATA(j, data, length) {
+ const char *c;
+
+ c = memchr(data, '=', length);
+ if (!c) {
+ log_error("Invalid field.");
+ return -EINVAL;
+ }
+
+ fputs(",\n\t", stdout);
+ json_escape(data, c - (const char*) data);
+ fputs(" : ", stdout);
+ json_escape(c + 1, length - (c - (const char*) data) - 1);
+ }
+
+ fputs("\n}", stdout);
+ fflush(stdout);
+
+ return 0;
+}
+
+static int (*output_funcs[_OUTPUT_MAX])(sd_journal*j, unsigned line) = {
+ [OUTPUT_SHORT] = output_short,
+ [OUTPUT_VERBOSE] = output_verbose,
+ [OUTPUT_EXPORT] = output_export,
+ [OUTPUT_JSON] = output_json
+};
int main(int argc, char *argv[]) {
int r, i, fd;
sd_journal *j = NULL;
+ unsigned line = 0;
log_set_max_level(LOG_DEBUG);
log_set_target(LOG_TARGET_CONSOLE);
@@ -69,33 +382,18 @@ int main(int argc, char *argv[]) {
goto finish;
}
+ if (arg_output == OUTPUT_JSON)
+ fputc('[', stdout);
+
for (;;) {
struct pollfd pollfd;
while (sd_journal_next(j) > 0) {
- const void *data;
- size_t length;
- char *cursor;
- uint64_t realtime = 0, monotonic = 0;
-
- r = sd_journal_get_cursor(j, &cursor);
- if (r < 0) {
- log_error("Failed to get cursor: %s", strerror(-r));
- goto finish;
- }
-
- printf("entry: %s\n", cursor);
- free(cursor);
+ line ++;
- sd_journal_get_realtime_usec(j, &realtime);
- sd_journal_get_monotonic_usec(j, &monotonic, NULL);
- printf("realtime: %llu\n"
- "monotonic: %llu\n",
- (unsigned long long) realtime,
- (unsigned long long) monotonic);
-
- SD_JOURNAL_FOREACH_DATA(j, data, length)
- printf("\t%.*s\n", (int) length, (const char*) data);
+ r = output_funcs[arg_output](j, line);
+ if (r < 0)
+ goto finish;
}
if (!arg_follow)
@@ -121,6 +419,9 @@ int main(int argc, char *argv[]) {
}
}
+ if (arg_output == OUTPUT_JSON)
+ fputs("\n]\n", stdout);
+
finish:
if (j)
sd_journal_close(j);
diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
index bc575b43ef..b9abbdff92 100644
--- a/src/journal/sd-journal.c
+++ b/src/journal/sd-journal.c
@@ -977,7 +977,7 @@ static int add_file(sd_journal *j, const char *prefix, const char *dir, const ch
return r;
}
- journal_file_dump(f);
+ /* journal_file_dump(f); */
r = hashmap_put(j->files, f->path, f);
if (r < 0) {
diff --git a/src/util.c b/src/util.c
index 37942de534..195835425d 100644
--- a/src/util.c
+++ b/src/util.c
@@ -3905,7 +3905,7 @@ char **replace_env_argv(char **argv, char **env) {
return r;
}
-int columns(void) {
+unsigned columns(void) {
static __thread int parsed_columns = 0;
const char *e;
@@ -3948,38 +3948,41 @@ int running_in_chroot(void) {
a.st_ino != b.st_ino;
}
-char *ellipsize(const char *s, unsigned length, unsigned percent) {
- size_t l, x;
+char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {
+ size_t x;
char *r;
assert(s);
assert(percent <= 100);
- assert(length >= 3);
+ assert(new_length >= 3);
- l = strlen(s);
+ if (old_length <= 3 || old_length <= new_length)
+ return strndup(s, old_length);
- if (l <= 3 || l <= length)
- return strdup(s);
-
- if (!(r = new0(char, length+1)))
+ r = new0(char, new_length+1);
+ if (!r)
return r;
- x = (length * percent) / 100;
+ x = (new_length * percent) / 100;
- if (x > length - 3)
- x = length - 3;
+ if (x > new_length - 3)
+ x = new_length - 3;
memcpy(r, s, x);
r[x] = '.';
r[x+1] = '.';
r[x+2] = '.';
memcpy(r + x + 3,
- s + l - (length - x - 3),
- length - x - 3);
+ s + old_length - (new_length - x - 3),
+ new_length - x - 3);
return r;
}
+char *ellipsize(const char *s, size_t length, unsigned percent) {
+ return ellipsize_mem(s, strlen(s), length, percent);
+}
+
int touch(const char *path) {
int fd;
diff --git a/src/util.h b/src/util.h
index 1db82f83e0..ac2ec8c351 100644
--- a/src/util.h
+++ b/src/util.h
@@ -378,11 +378,12 @@ void status_vprintf(const char *format, va_list ap);
void status_printf(const char *format, ...);
void status_welcome(void);
-int columns(void);
+unsigned columns(void);
int running_in_chroot(void);
-char *ellipsize(const char *s, unsigned length, unsigned percent);
+char *ellipsize(const char *s, size_t length, unsigned percent);
+char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent);
int touch(const char *path);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-15 02:13:48 +0000