journalctl: fix verbose output when no logs are found

[elogind.git] / src / shared / logs-show.c

diff --git a/src/shared/logs-show.c b/src/shared/logs-show.c
index b88547eb83a47c6968cd92efd9e8204042242fc4..7947df3a89e90354c04aad2bbed399977f0b1709 100644 (file)
--- a/src/shared/logs-show.c
+++ b/src/shared/logs-show.c
@@ -163,7 +163,7 @@ static int output_short(
 
         sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : PRINT_THRESHOLD);
 
-        SD_JOURNAL_FOREACH_DATA(j, data, length) {
+        JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
 
                 r = parse_field(data, length, "PRIORITY=", &priority, &priority_len);
                 if (r < 0)
@@ -218,6 +218,9 @@ static int output_short(
                         return r;
         }
 
+        if (r < 0)
+                return r;
+
         if (!message)
                 return 0;
 
@@ -240,7 +243,7 @@ static int output_short(
                         r = sd_journal_get_monotonic_usec(j, &t, &boot_id);
 
                 if (r < 0) {
-                        log_error("Failed to get monotonic: %s", strerror(-r));
+                        log_error("Failed to get monotonic timestamp: %s", strerror(-r));
                         return r;
                 }
 
@@ -265,7 +268,7 @@ static int output_short(
                         r = sd_journal_get_realtime_usec(j, &x);
 
                 if (r < 0) {
-                        log_error("Failed to get realtime: %s", strerror(-r));
+                        log_error("Failed to get realtime timestamp: %s", strerror(-r));
                         return r;
                 }
 
@@ -336,7 +339,8 @@ static int output_verbose(
 
         r = sd_journal_get_realtime_usec(j, &realtime);
         if (r < 0) {
-                log_error("Failed to get realtime timestamp: %s", strerror(-r));
+                log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR,
+                         "Failed to get realtime timestamp: %s", strerror(-r));
                 return r;
         }
 
@@ -350,7 +354,7 @@ static int output_verbose(
                 format_timestamp(ts, sizeof(ts), realtime),
                 cursor);
 
-        SD_JOURNAL_FOREACH_DATA(j, data, length) {
+        JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
                 const char *c;
                 int fieldlen;
                 c = memchr(data, '=', length);
@@ -373,6 +377,9 @@ static int output_verbose(
                 }
         }
 
+        if (r < 0)
+                return r;
+
         if (flags & OUTPUT_CATALOG)
                 print_catalog(f, j);
 
@@ -426,7 +433,7 @@ static int output_export(
                 (unsigned long long) monotonic,
                 sd_id128_to_string(boot_id, sid));
 
-        SD_JOURNAL_FOREACH_DATA(j, data, length) {
+        JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
 
                 /* We already printed the boot id, from the data in
                  * the header, hence let's suppress it here */
@@ -455,6 +462,9 @@ static int output_export(
                 fputc('\n', f);
         }
 
+        if (r < 0)
+                return r;
+
         fputc('\n', f);
 
         return 0;
@@ -583,7 +593,7 @@ static int output_json(
                 return -ENOMEM;
 
         /* First round, iterate through the entry and count how often each field appears */
-        SD_JOURNAL_FOREACH_DATA(j, data, length) {
+        JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
                 const char *eq;
                 char *n;
                 unsigned u;
@@ -617,6 +627,9 @@ static int output_json(
                 }
         }
 
+        if (r < 0)
+                return r;
+
         separator = true;
         do {
                 done = true;