#include "log.h"
#include "util.h"
#include "utf8.h"
+#include "hashmap.h"
+#include "journal-internal.h"
#define PRINT_THRESHOLD 128
+#define JSON_THRESHOLD 4096
+
+static int print_catalog(FILE *f, sd_journal *j) {
+ int r;
+ _cleanup_free_ char *t = NULL, *z = NULL;
+
+
+ r = sd_journal_get_catalog(j, &t);
+ if (r < 0)
+ return r;
+
+ z = strreplace(strstrip(t), "\n", "\n-- ");
+ if (!z)
+ return log_oom();
+
+ fputs("-- ", f);
+ fputs(z, f);
+ fputc('\n', f);
+
+ return 0;
+}
static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) {
size_t fl, nl;
return 1;
}
-static bool shall_print(bool show_all, char *p, size_t l) {
- if (show_all)
+static bool shall_print(const char *p, size_t l, OutputFlags flags) {
+ assert(p);
+
+ if (flags & OUTPUT_SHOW_ALL)
return true;
- if (l > PRINT_THRESHOLD)
+ if (l >= PRINT_THRESHOLD)
return false;
if (!utf8_is_printable_n(p, l))
return true;
}
-static int output_short(sd_journal *j, unsigned line, unsigned n_columns,
- OutputFlags flags) {
+static int output_short(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
int r;
const void *data;
size_t length;
size_t n = 0;
- char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL;
+ _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL;
size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0, realtime_len = 0, monotonic_len = 0, priority_len = 0;
int p = LOG_INFO;
const char *color_on = "", *color_off = "";
+ assert(f);
assert(j);
+ sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : PRINT_THRESHOLD);
+
SD_JOURNAL_FOREACH_DATA(j, data, length) {
r = parse_field(data, length, "PRIORITY=", &priority, &priority_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "_COMM=", &comm, &comm_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "_PID=", &pid, &pid_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len);
if (r < 0)
- goto finish;
+ return r;
else if (r > 0)
continue;
r = parse_field(data, length, "MESSAGE=", &message, &message_len);
if (r < 0)
- goto finish;
+ return r;
}
- if (!message) {
- r = 0;
- goto finish;
- }
+ if (!message)
+ return 0;
+
+ if (!(flags & OUTPUT_SHOW_ALL))
+ strip_tab_ansi(&message, &message_len);
if (priority_len == 1 && *priority >= '0' && *priority <= '7')
p = *priority - '0';
- if (flags & OUTPUT_MONOTONIC_MODE) {
+ if (mode == OUTPUT_SHORT_MONOTONIC) {
uint64_t t;
sd_id128_t boot_id;
if (r < 0) {
log_error("Failed to get monotonic: %s", strerror(-r));
- goto finish;
+ return r;
}
- printf("[%5llu.%06llu]",
- (unsigned long long) (t / USEC_PER_SEC),
- (unsigned long long) (t % USEC_PER_SEC));
+ fprintf(f, "[%5llu.%06llu]",
+ (unsigned long long) (t / USEC_PER_SEC),
+ (unsigned long long) (t % USEC_PER_SEC));
n += 1 + 5 + 1 + 6 + 1;
if (r < 0) {
log_error("Failed to get realtime: %s", strerror(-r));
- goto finish;
+ return r;
}
t = (time_t) (x / USEC_PER_SEC);
if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)) <= 0) {
log_error("Failed to format time.");
- goto finish;
+ return r;
}
- fputs(buf, stdout);
+ fputs(buf, f);
n += strlen(buf);
}
- if (hostname && shall_print(flags & OUTPUT_SHOW_ALL,
- hostname, hostname_len)) {
- printf(" %.*s", (int) hostname_len, hostname);
+ if (hostname && shall_print(hostname, hostname_len, flags)) {
+ fprintf(f, " %.*s", (int) hostname_len, hostname);
n += hostname_len + 1;
}
- if (identifier && shall_print(flags & OUTPUT_SHOW_ALL,
- identifier, identifier_len)) {
- printf(" %.*s", (int) identifier_len, identifier);
+ if (identifier && shall_print(identifier, identifier_len, flags)) {
+ fprintf(f, " %.*s", (int) identifier_len, identifier);
n += identifier_len + 1;
- } else if (comm && shall_print(flags & OUTPUT_SHOW_ALL,
- comm, comm_len)) {
- printf(" %.*s", (int) comm_len, comm);
+ } else if (comm && shall_print(comm, comm_len, flags)) {
+ fprintf(f, " %.*s", (int) comm_len, comm);
n += comm_len + 1;
} else
- putchar(' ');
+ fputc(' ', f);
- if (pid && shall_print(flags & OUTPUT_SHOW_ALL, pid, pid_len)) {
- printf("[%.*s]", (int) pid_len, pid);
+ if (pid && shall_print(pid, pid_len, flags)) {
+ fprintf(f, "[%.*s]", (int) pid_len, pid);
n += pid_len + 2;
- } else if (fake_pid && shall_print(flags & OUTPUT_SHOW_ALL,
- fake_pid, fake_pid_len)) {
- printf("[%.*s]", (int) fake_pid_len, fake_pid);
+ } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) {
+ fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid);
n += fake_pid_len + 2;
}
}
if (flags & OUTPUT_SHOW_ALL)
- printf(": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
+ fprintf(f, ": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
else if (!utf8_is_printable_n(message, message_len)) {
char bytes[FORMAT_BYTES_MAX];
- printf(": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len));
- } else if ((flags & OUTPUT_FULL_WIDTH) ||
- (message_len + n + 1 < n_columns))
- printf(": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
+ fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len));
+ } else if ((flags & OUTPUT_FULL_WIDTH) || (message_len + n + 1 < n_columns))
+ fprintf(f, ": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
else if (n < n_columns && n_columns - n - 2 >= 3) {
- char *e;
+ _cleanup_free_ char *e;
e = ellipsize_mem(message, message_len, n_columns - n - 2, 90);
if (!e)
- printf(": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
+ fprintf(f, ": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
else
- printf(": %s%s%s\n", color_on, e, color_off);
-
- free(e);
+ fprintf(f, ": %s%s%s\n", color_on, e, color_off);
} else
- fputs("\n", stdout);
-
- r = 0;
+ fputs("\n", f);
-finish:
- free(hostname);
- free(identifier);
- free(comm);
- free(pid);
- free(fake_pid);
- free(message);
- free(monotonic);
- free(realtime);
-
- return r;
-}
+ if (flags & OUTPUT_CATALOG)
+ print_catalog(f, j);
-static int output_short_realtime(sd_journal *j, unsigned line,
- unsigned n_columns, OutputFlags flags) {
- return output_short(j, line, n_columns, flags & ~OUTPUT_MONOTONIC_MODE);
+ return 0;
}
-static int output_short_monotonic(sd_journal *j, unsigned line,
- unsigned n_columns, OutputFlags flags) {
- return output_short(j, line, n_columns, flags | OUTPUT_MONOTONIC_MODE);
-}
+static int output_verbose(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
-static int output_verbose(sd_journal *j, unsigned line,
- unsigned n_columns, OutputFlags flags) {
const void *data;
size_t length;
- char *cursor;
+ _cleanup_free_ char *cursor = NULL;
uint64_t realtime;
char ts[FORMAT_TIMESTAMP_MAX];
int r;
+ assert(f);
assert(j);
+ sd_journal_set_data_threshold(j, 0);
+
r = sd_journal_get_realtime_usec(j, &realtime);
if (r < 0) {
log_error("Failed to get realtime timestamp: %s", strerror(-r));
return r;
}
- printf("%s [%s]\n",
- format_timestamp(ts, sizeof(ts), realtime),
- cursor);
-
- free(cursor);
+ fprintf(f, "%s [%s]\n",
+ format_timestamp(ts, sizeof(ts), realtime),
+ cursor);
SD_JOURNAL_FOREACH_DATA(j, data, length) {
- if (!(flags & OUTPUT_SHOW_ALL) && (length > PRINT_THRESHOLD ||
- !utf8_is_printable_n(data, length))) {
+ if (!shall_print(data, length, flags)) {
const char *c;
char bytes[FORMAT_BYTES_MAX];
return -EINVAL;
}
- printf("\t%.*s=[%s blob data]\n",
+ fprintf(f, "\t%.*s=[%s blob data]\n",
(int) (c - (const char*) data),
(const char*) data,
format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1));
} else
- printf("\t%.*s\n", (int) length, (const char*) data);
+ fprintf(f, "\t%.*s\n", (int) length, (const char*) data);
}
+ if (flags & OUTPUT_CATALOG)
+ print_catalog(f, j);
+
return 0;
}
-static int output_export(sd_journal *j, unsigned line,
- unsigned n_columns, OutputFlags flags) {
+static int output_export(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
sd_id128_t boot_id;
char sid[33];
int r;
usec_t realtime, monotonic;
- char *cursor;
+ _cleanup_free_ char *cursor = NULL;
const void *data;
size_t length;
assert(j);
+ sd_journal_set_data_threshold(j, 0);
+
r = sd_journal_get_realtime_usec(j, &realtime);
if (r < 0) {
log_error("Failed to get realtime timestamp: %s", strerror(-r));
return r;
}
- printf("__CURSOR=%s\n"
- "__REALTIME_TIMESTAMP=%llu\n"
- "__MONOTONIC_TIMESTAMP=%llu\n"
- "_BOOT_ID=%s\n",
- cursor,
- (unsigned long long) realtime,
- (unsigned long long) monotonic,
- sd_id128_to_string(boot_id, sid));
-
- free(cursor);
+ fprintf(f,
+ "__CURSOR=%s\n"
+ "__REALTIME_TIMESTAMP=%llu\n"
+ "__MONOTONIC_TIMESTAMP=%llu\n"
+ "_BOOT_ID=%s\n",
+ cursor,
+ (unsigned long long) realtime,
+ (unsigned long long) monotonic,
+ sd_id128_to_string(boot_id, sid));
SD_JOURNAL_FOREACH_DATA(j, data, length) {
return -EINVAL;
}
- fwrite(data, c - (const char*) data, 1, stdout);
- fputc('\n', stdout);
+ fwrite(data, c - (const char*) data, 1, f);
+ fputc('\n', f);
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);
+ fwrite(&le64, sizeof(le64), 1, f);
+ fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f);
} else
- fwrite(data, length, 1, stdout);
+ fwrite(data, length, 1, f);
- fputc('\n', stdout);
+ fputc('\n', f);
}
- fputc('\n', stdout);
+ fputc('\n', f);
return 0;
}
-static void json_escape(const char* p, size_t l) {
- if (!utf8_is_printable_n(p, l)) {
+void json_escape(
+ FILE *f,
+ const char* p,
+ size_t l,
+ OutputFlags flags) {
+
+ assert(f);
+ assert(p);
+
+ if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD)
+
+ fputs("null", f);
+
+ else if (!utf8_is_printable_n(p, l)) {
bool not_first = false;
- fputs("[ ", stdout);
+ fputs("[ ", f);
while (l > 0) {
if (not_first)
- printf(", %u", (uint8_t) *p);
+ fprintf(f, ", %u", (uint8_t) *p);
else {
not_first = true;
- printf("%u", (uint8_t) *p);
+ fprintf(f, "%u", (uint8_t) *p);
}
p++;
l--;
}
- fputs(" ]", stdout);
+ fputs(" ]", f);
} else {
- fputc('\"', stdout);
+ fputc('\"', f);
while (l > 0) {
if (*p == '"' || *p == '\\') {
- fputc('\\', stdout);
- fputc(*p, stdout);
- } else
- fputc(*p, stdout);
+ fputc('\\', f);
+ fputc(*p, f);
+ } else if (*p < ' ')
+ fprintf(f, "\\u%04x", *p);
+ else
+ fputc(*p, f);
p++;
l--;
}
- fputc('\"', stdout);
+ fputc('\"', f);
}
}
-static int output_json(sd_journal *j, unsigned line,
- unsigned n_columns, OutputFlags flags) {
+static int output_json(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
uint64_t realtime, monotonic;
- char *cursor;
+ _cleanup_free_ char *cursor = NULL;
const void *data;
size_t length;
sd_id128_t boot_id;
- char sid[33];
+ char sid[33], *k;
int r;
+ Hashmap *h = NULL;
+ bool done, separator;
assert(j);
+ sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD);
+
r = sd_journal_get_realtime_usec(j, &realtime);
if (r < 0) {
log_error("Failed to get realtime timestamp: %s", strerror(-r));
return r;
}
- if (line == 1)
- fputc('\n', stdout);
- else
- fputs(",\n", stdout);
-
- printf("{\n"
- "\t\"__CURSOR\" : \"%s\",\n"
- "\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n"
- "\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n"
- "\t\"_BOOT_ID\" : \"%s\"",
- cursor,
- (unsigned long long) realtime,
- (unsigned long long) monotonic,
- sd_id128_to_string(boot_id, sid));
+ if (mode == OUTPUT_JSON_PRETTY)
+ fprintf(f,
+ "{\n"
+ "\t\"__CURSOR\" : \"%s\",\n"
+ "\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n"
+ "\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n"
+ "\t\"_BOOT_ID\" : \"%s\"",
+ cursor,
+ (unsigned long long) realtime,
+ (unsigned long long) monotonic,
+ sd_id128_to_string(boot_id, sid));
+ else {
+ if (mode == OUTPUT_JSON_SSE)
+ fputs("data: ", f);
+
+ fprintf(f,
+ "{ \"__CURSOR\" : \"%s\", "
+ "\"__REALTIME_TIMESTAMP\" : \"%llu\", "
+ "\"__MONOTONIC_TIMESTAMP\" : \"%llu\", "
+ "\"_BOOT_ID\" : \"%s\"",
+ cursor,
+ (unsigned long long) realtime,
+ (unsigned long long) monotonic,
+ sd_id128_to_string(boot_id, sid));
+ }
- free(cursor);
+ h = hashmap_new(string_hash_func, string_compare_func);
+ if (!h)
+ return -ENOMEM;
+ /* First round, iterate through the entry and count how often each field appears */
SD_JOURNAL_FOREACH_DATA(j, data, length) {
- const char *c;
+ const char *eq;
+ char *n;
+ unsigned u;
- /* We already printed the boot id, from the data in
- * the header, hence let's suppress it here */
if (length >= 9 &&
memcmp(data, "_BOOT_ID=", 9) == 0)
continue;
- c = memchr(data, '=', length);
- if (!c) {
- log_error("Invalid field.");
- return -EINVAL;
+ eq = memchr(data, '=', length);
+ if (!eq)
+ continue;
+
+ n = strndup(data, eq - (const char*) data);
+ if (!n) {
+ r = -ENOMEM;
+ goto finish;
}
- fputs(",\n\t", stdout);
- json_escape(data, c - (const char*) data);
- fputs(" : ", stdout);
- json_escape(c + 1, length - (c - (const char*) data) - 1);
+ u = PTR_TO_UINT(hashmap_get(h, n));
+ if (u == 0) {
+ r = hashmap_put(h, n, UINT_TO_PTR(1));
+ if (r < 0) {
+ free(n);
+ goto finish;
+ }
+ } else {
+ r = hashmap_update(h, n, UINT_TO_PTR(u + 1));
+ free(n);
+ if (r < 0)
+ goto finish;
+ }
}
- fputs("\n}", stdout);
- fflush(stdout);
+ separator = true;
+ do {
+ done = true;
+
+ SD_JOURNAL_FOREACH_DATA(j, data, length) {
+ const char *eq;
+ char *kk, *n;
+ size_t m;
+ unsigned u;
+
+ /* We already printed the boot id, from the data in
+ * the header, hence let's suppress it here */
+ if (length >= 9 &&
+ memcmp(data, "_BOOT_ID=", 9) == 0)
+ continue;
+
+ eq = memchr(data, '=', length);
+ if (!eq)
+ continue;
+
+ if (separator) {
+ if (mode == OUTPUT_JSON_PRETTY)
+ fputs(",\n\t", f);
+ else
+ fputs(", ", f);
+ }
- return 0;
+ m = eq - (const char*) data;
+
+ n = strndup(data, m);
+ if (!n) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk));
+ if (u == 0) {
+ /* We already printed this, let's jump to the next */
+ free(n);
+ separator = false;
+
+ continue;
+ } else if (u == 1) {
+ /* Field only appears once, output it directly */
+
+ json_escape(f, data, m, flags);
+ fputs(" : ", f);
+
+ json_escape(f, eq + 1, length - m - 1, flags);
+
+ hashmap_remove(h, n);
+ free(kk);
+ free(n);
+
+ separator = true;
+
+ continue;
+
+ } else {
+ /* Field appears multiple times, output it as array */
+ json_escape(f, data, m, flags);
+ fputs(" : [ ", f);
+ json_escape(f, eq + 1, length - m - 1, flags);
+
+ /* Iterate through the end of the list */
+
+ while (sd_journal_enumerate_data(j, &data, &length) > 0) {
+ if (length < m + 1)
+ continue;
+
+ if (memcmp(data, n, m) != 0)
+ continue;
+
+ if (((const char*) data)[m] != '=')
+ continue;
+
+ fputs(", ", f);
+ json_escape(f, (const char*) data + m + 1, length - m - 1, flags);
+ }
+
+ fputs(" ]", f);
+
+ hashmap_remove(h, n);
+ free(kk);
+ free(n);
+
+ /* Iterate data fields form the beginning */
+ done = false;
+ separator = true;
+
+ break;
+ }
+ }
+
+ } while (!done);
+
+ if (mode == OUTPUT_JSON_PRETTY)
+ fputs("\n}\n", f);
+ else if (mode == OUTPUT_JSON_SSE)
+ fputs("}\n\n", f);
+ else
+ fputs(" }\n", f);
+
+ r = 0;
+
+finish:
+ while ((k = hashmap_steal_first_key(h)))
+ free(k);
+
+ hashmap_free(h);
+
+ return r;
}
-static int output_cat(sd_journal *j, unsigned line,
- unsigned n_columns, OutputFlags flags) {
+static int output_cat(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
const void *data;
size_t l;
int r;
assert(j);
+ assert(f);
+
+ sd_journal_set_data_threshold(j, 0);
r = sd_journal_get_data(j, "MESSAGE", &data, &l);
if (r < 0) {
+ /* An entry without MESSAGE=? */
+ if (r == -ENOENT)
+ return 0;
+
log_error("Failed to get data: %s", strerror(-r));
return r;
}
assert(l >= 8);
- fwrite((const char*) data + 8, 1, l - 8, stdout);
- putchar('\n');
+ fwrite((const char*) data + 8, 1, l - 8, f);
+ fputc('\n', f);
return 0;
}
-static int (*output_funcs[_OUTPUT_MODE_MAX])(sd_journal*j, unsigned line,
- unsigned n_columns, OutputFlags flags) = {
- [OUTPUT_SHORT] = output_short_realtime,
- [OUTPUT_SHORT_MONOTONIC] = output_short_monotonic,
+static int (*output_funcs[_OUTPUT_MODE_MAX])(
+ FILE *f,
+ sd_journal*j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) = {
+
+ [OUTPUT_SHORT] = output_short,
+ [OUTPUT_SHORT_MONOTONIC] = output_short,
[OUTPUT_VERBOSE] = output_verbose,
[OUTPUT_EXPORT] = output_export,
[OUTPUT_JSON] = output_json,
+ [OUTPUT_JSON_PRETTY] = output_json,
+ [OUTPUT_JSON_SSE] = output_json,
[OUTPUT_CAT] = output_cat
};
-int output_journal(sd_journal *j, OutputMode mode, unsigned line,
- unsigned n_columns, OutputFlags flags) {
+int output_journal(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ int ret;
assert(mode >= 0);
assert(mode < _OUTPUT_MODE_MAX);
if (n_columns <= 0)
n_columns = columns();
- return output_funcs[mode](j, line, n_columns, flags);
+ ret = output_funcs[mode](f, j, mode, n_columns, flags);
+ fflush(stdout);
+ return ret;
}
-int show_journal_by_unit(
- const char *unit,
- OutputMode mode,
- unsigned n_columns,
- usec_t not_before,
- unsigned how_many,
- OutputFlags flags) {
+static int show_journal(FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ usec_t not_before,
+ unsigned how_many,
+ OutputFlags flags) {
- char *m = NULL;
- sd_journal *j = NULL;
int r;
unsigned line = 0;
bool need_seek = false;
int warn_cutoff = flags & OUTPUT_WARN_CUTOFF;
+ assert(j);
assert(mode >= 0);
assert(mode < _OUTPUT_MODE_MAX);
- assert(unit);
-
- if (!endswith(unit, ".service") &&
- !endswith(unit, ".socket") &&
- !endswith(unit, ".mount") &&
- !endswith(unit, ".swap"))
- return 0;
-
- if (how_many <= 0)
- return 0;
-
- if (asprintf(&m, "_SYSTEMD_UNIT=%s", unit) < 0) {
- r = -ENOMEM;
- goto finish;
- }
-
- r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY|SD_JOURNAL_SYSTEM_ONLY);
- if (r < 0)
- goto finish;
-
- r = sd_journal_add_match(j, m, strlen(m));
- if (r < 0)
- goto finish;
+ /* Seek to end */
r = sd_journal_seek_tail(j);
if (r < 0)
goto finish;
if (r < 0)
goto finish;
- if (mode == OUTPUT_JSON) {
- fputc('[', stdout);
- fflush(stdout);
- }
-
for (;;) {
for (;;) {
usec_t usec;
line ++;
- r = output_journal(j, mode, line, n_columns, flags);
+ r = output_journal(f, j, mode, n_columns, flags);
if (r < 0)
goto finish;
}
goto finish;
if (r > 0 && not_before < cutoff)
- printf("Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n");
+ fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n");
warn_cutoff = false;
}
}
- if (mode == OUTPUT_JSON)
- fputs("\n]\n", stdout);
-
finish:
- if (m)
- free(m);
+ return r;
+}
+
+int add_matches_for_unit(sd_journal *j, const char *unit) {
+ int r;
+ _cleanup_free_ char *m1 = NULL, *m2 = NULL, *m3 = NULL;
+
+ assert(j);
+ assert(unit);
+
+ if (asprintf(&m1, "_SYSTEMD_UNIT=%s", unit) < 0 ||
+ asprintf(&m2, "COREDUMP_UNIT=%s", unit) < 0 ||
+ asprintf(&m3, "UNIT=%s", unit) < 0)
+ return -ENOMEM;
+
+ (void)(
+ /* Look for messages from the service itself */
+ (r = sd_journal_add_match(j, m1, 0)) ||
+
+ /* Look for coredumps of the service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j,
+ "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) ||
+ (r = sd_journal_add_match(j, m2, 0)) ||
+
+ /* Look for messages from PID 1 about this service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, "_PID=1", 0)) ||
+ (r = sd_journal_add_match(j, m3, 0))
+ );
+ return r;
+}
- if (j)
- sd_journal_close(j);
+int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) {
+ int r;
+ _cleanup_free_ char *m1 = NULL, *m2 = NULL, *m3 = NULL, *m4 = NULL;
+
+ assert(j);
+ assert(unit);
+ if (asprintf(&m1, "_SYSTEMD_USER_UNIT=%s", unit) < 0 ||
+ asprintf(&m2, "USER_UNIT=%s", unit) < 0 ||
+ asprintf(&m3, "COREDUMP_USER_UNIT=%s", unit) < 0 ||
+ asprintf(&m4, "_UID=%d", uid) < 0)
+ return -ENOMEM;
+
+ (void) (
+ /* Look for messages from the user service itself */
+ (r = sd_journal_add_match(j, m1, 0)) ||
+ (r = sd_journal_add_match(j, m4, 0)) ||
+
+ /* Look for messages from systemd about this service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m2, 0)) ||
+ (r = sd_journal_add_match(j, m4, 0)) ||
+
+ /* Look for coredumps of the service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m3, 0)) ||
+ (r = sd_journal_add_match(j, m4, 0))
+ );
return r;
}
+int add_match_this_boot(sd_journal *j) {
+ char match[9+32+1] = "_BOOT_ID=";
+ sd_id128_t boot_id;
+ int r;
+
+ assert(j);
+
+ r = sd_id128_get_boot(&boot_id);
+ if (r < 0) {
+ log_error("Failed to get boot id: %s", strerror(-r));
+ return r;
+ }
+
+ sd_id128_to_string(boot_id, match + 9);
+ r = sd_journal_add_match(j, match, strlen(match));
+ if (r < 0) {
+ log_error("Failed to add match: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_journal_add_conjunction(j);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int show_journal_by_unit(
+ FILE *f,
+ const char *unit,
+ OutputMode mode,
+ unsigned n_columns,
+ usec_t not_before,
+ unsigned how_many,
+ uid_t uid,
+ OutputFlags flags,
+ bool system) {
+
+ _cleanup_journal_close_ sd_journal*j = NULL;
+ int r;
+ int jflags = SD_JOURNAL_LOCAL_ONLY | system * SD_JOURNAL_SYSTEM_ONLY;
+
+ assert(mode >= 0);
+ assert(mode < _OUTPUT_MODE_MAX);
+ assert(unit);
+
+ if (how_many <= 0)
+ return 0;
+
+ r = sd_journal_open(&j, jflags);
+ if (r < 0)
+ return r;
+
+ r = add_match_this_boot(j);
+ if (r < 0)
+ return r;
+
+ if (system)
+ r = add_matches_for_unit(j, unit);
+ else
+ r = add_matches_for_user_unit(j, unit, uid);
+ if (r < 0)
+ return r;
+
+ log_debug("Journal filter: %s", journal_make_match_string(j));
+
+ r = show_journal(f, j, mode, n_columns, not_before, how_many, flags);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
static const char *const output_mode_table[_OUTPUT_MODE_MAX] = {
[OUTPUT_SHORT] = "short",
[OUTPUT_SHORT_MONOTONIC] = "short-monotonic",
[OUTPUT_VERBOSE] = "verbose",
[OUTPUT_EXPORT] = "export",
[OUTPUT_JSON] = "json",
+ [OUTPUT_JSON_PRETTY] = "json-pretty",
+ [OUTPUT_JSON_SSE] = "json-sse",
[OUTPUT_CAT] = "cat"
};
~ianmdlvl / elogind.git / blobdiff