941 lines
29 KiB
C
941 lines
29 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <time.h>
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#include <assert.h>
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#include <errno.h>
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#include <sys/poll.h>
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#include <string.h>
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#include "logs-show.h"
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#include "log.h"
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#include "util.h"
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#include "utf8.h"
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#include "hashmap.h"
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#define PRINT_THRESHOLD 128
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#define JSON_THRESHOLD 4096
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static int print_catalog(FILE *f, sd_journal *j) {
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int r;
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_cleanup_free_ char *t = NULL, *z = NULL;
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r = sd_journal_get_catalog(j, &t);
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if (r < 0)
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return r;
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z = strreplace(strstrip(t), "\n", "\n-- ");
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if (!z)
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return log_oom();
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fputs("-- ", f);
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fputs(z, f);
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fputc('\n', f);
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return 0;
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}
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static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) {
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size_t fl, nl;
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void *buf;
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assert(data);
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assert(field);
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assert(target);
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assert(target_size);
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fl = strlen(field);
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if (length < fl)
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return 0;
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if (memcmp(data, field, fl))
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return 0;
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nl = length - fl;
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buf = malloc(nl+1);
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if (!buf)
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return log_oom();
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memcpy(buf, (const char*) data + fl, nl);
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((char*)buf)[nl] = 0;
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free(*target);
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*target = buf;
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*target_size = nl;
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return 1;
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}
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static bool shall_print(const char *p, size_t l, OutputFlags flags) {
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assert(p);
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if (flags & OUTPUT_SHOW_ALL)
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return true;
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if (l >= PRINT_THRESHOLD)
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return false;
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if (!utf8_is_printable_n(p, l))
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return false;
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return true;
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}
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static int output_short(
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FILE *f,
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sd_journal *j,
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OutputMode mode,
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unsigned n_columns,
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OutputFlags flags) {
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int r;
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const void *data;
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size_t length;
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size_t n = 0;
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_cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL;
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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;
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int p = LOG_INFO;
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const char *color_on = "", *color_off = "";
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assert(f);
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assert(j);
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sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : PRINT_THRESHOLD);
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SD_JOURNAL_FOREACH_DATA(j, data, length) {
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r = parse_field(data, length, "PRIORITY=", &priority, &priority_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "_COMM=", &comm, &comm_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "_PID=", &pid, &pid_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len);
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if (r < 0)
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return r;
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else if (r > 0)
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continue;
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r = parse_field(data, length, "MESSAGE=", &message, &message_len);
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if (r < 0)
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return r;
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}
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if (!message)
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return 0;
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if (priority_len == 1 && *priority >= '0' && *priority <= '7')
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p = *priority - '0';
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if (mode == OUTPUT_SHORT_MONOTONIC) {
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uint64_t t;
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sd_id128_t boot_id;
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r = -ENOENT;
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if (monotonic)
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r = safe_atou64(monotonic, &t);
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if (r < 0)
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r = sd_journal_get_monotonic_usec(j, &t, &boot_id);
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if (r < 0) {
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log_error("Failed to get monotonic: %s", strerror(-r));
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return r;
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}
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fprintf(f, "[%5llu.%06llu]",
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(unsigned long long) (t / USEC_PER_SEC),
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(unsigned long long) (t % USEC_PER_SEC));
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n += 1 + 5 + 1 + 6 + 1;
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} else {
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char buf[64];
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uint64_t x;
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time_t t;
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struct tm tm;
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r = -ENOENT;
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if (realtime)
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r = safe_atou64(realtime, &x);
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if (r < 0)
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r = sd_journal_get_realtime_usec(j, &x);
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if (r < 0) {
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log_error("Failed to get realtime: %s", strerror(-r));
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return r;
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}
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t = (time_t) (x / USEC_PER_SEC);
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if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)) <= 0) {
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log_error("Failed to format time.");
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return r;
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}
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fputs(buf, f);
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n += strlen(buf);
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}
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if (hostname && shall_print(hostname, hostname_len, flags)) {
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fprintf(f, " %.*s", (int) hostname_len, hostname);
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n += hostname_len + 1;
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}
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if (identifier && shall_print(identifier, identifier_len, flags)) {
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fprintf(f, " %.*s", (int) identifier_len, identifier);
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n += identifier_len + 1;
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} else if (comm && shall_print(comm, comm_len, flags)) {
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fprintf(f, " %.*s", (int) comm_len, comm);
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n += comm_len + 1;
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} else
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fputc(' ', f);
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if (pid && shall_print(pid, pid_len, flags)) {
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fprintf(f, "[%.*s]", (int) pid_len, pid);
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n += pid_len + 2;
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} else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) {
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fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid);
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n += fake_pid_len + 2;
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}
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if (flags & OUTPUT_COLOR) {
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if (p <= LOG_ERR) {
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color_on = ANSI_HIGHLIGHT_RED_ON;
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color_off = ANSI_HIGHLIGHT_OFF;
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} else if (p <= LOG_NOTICE) {
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color_on = ANSI_HIGHLIGHT_ON;
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color_off = ANSI_HIGHLIGHT_OFF;
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}
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}
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if (flags & OUTPUT_SHOW_ALL)
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fprintf(f, ": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
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else if (!utf8_is_printable_n(message, message_len)) {
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char bytes[FORMAT_BYTES_MAX];
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fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len));
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} else if ((flags & OUTPUT_FULL_WIDTH) || (message_len + n + 1 < n_columns))
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fprintf(f, ": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
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else if (n < n_columns && n_columns - n - 2 >= 3) {
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char *e;
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e = ellipsize_mem(message, message_len, n_columns - n - 2, 90);
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if (!e)
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fprintf(f, ": %s%.*s%s\n", color_on, (int) message_len, message, color_off);
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else
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fprintf(f, ": %s%s%s\n", color_on, e, color_off);
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free(e);
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} else
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fputs("\n", f);
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if (flags & OUTPUT_CATALOG)
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print_catalog(f, j);
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return 0;
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}
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static int output_verbose(
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FILE *f,
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sd_journal *j,
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OutputMode mode,
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unsigned n_columns,
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OutputFlags flags) {
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const void *data;
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size_t length;
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char *cursor;
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uint64_t realtime;
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char ts[FORMAT_TIMESTAMP_MAX];
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int r;
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assert(f);
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assert(j);
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sd_journal_set_data_threshold(j, 0);
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r = sd_journal_get_realtime_usec(j, &realtime);
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if (r < 0) {
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log_error("Failed to get realtime timestamp: %s", strerror(-r));
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return r;
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}
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r = sd_journal_get_cursor(j, &cursor);
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if (r < 0) {
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log_error("Failed to get cursor: %s", strerror(-r));
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return r;
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}
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fprintf(f, "%s [%s]\n",
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format_timestamp(ts, sizeof(ts), realtime),
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cursor);
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free(cursor);
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SD_JOURNAL_FOREACH_DATA(j, data, length) {
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if (!shall_print(data, length, flags)) {
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const char *c;
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char bytes[FORMAT_BYTES_MAX];
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c = memchr(data, '=', length);
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if (!c) {
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log_error("Invalid field.");
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return -EINVAL;
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}
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fprintf(f, "\t%.*s=[%s blob data]\n",
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(int) (c - (const char*) data),
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(const char*) data,
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format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1));
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} else
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fprintf(f, "\t%.*s\n", (int) length, (const char*) data);
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}
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if (flags & OUTPUT_CATALOG)
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print_catalog(f, j);
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return 0;
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}
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static int output_export(
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FILE *f,
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sd_journal *j,
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OutputMode mode,
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unsigned n_columns,
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OutputFlags flags) {
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sd_id128_t boot_id;
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char sid[33];
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int r;
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usec_t realtime, monotonic;
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char *cursor;
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const void *data;
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size_t length;
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assert(j);
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sd_journal_set_data_threshold(j, 0);
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r = sd_journal_get_realtime_usec(j, &realtime);
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if (r < 0) {
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log_error("Failed to get realtime timestamp: %s", strerror(-r));
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return r;
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}
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r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id);
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if (r < 0) {
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log_error("Failed to get monotonic timestamp: %s", strerror(-r));
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return r;
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}
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r = sd_journal_get_cursor(j, &cursor);
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if (r < 0) {
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log_error("Failed to get cursor: %s", strerror(-r));
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return r;
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}
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fprintf(f,
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"__CURSOR=%s\n"
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"__REALTIME_TIMESTAMP=%llu\n"
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"__MONOTONIC_TIMESTAMP=%llu\n"
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"_BOOT_ID=%s\n",
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cursor,
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(unsigned long long) realtime,
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(unsigned long long) monotonic,
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sd_id128_to_string(boot_id, sid));
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free(cursor);
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SD_JOURNAL_FOREACH_DATA(j, data, length) {
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/* We already printed the boot id, from the data in
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* the header, hence let's suppress it here */
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if (length >= 9 &&
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memcmp(data, "_BOOT_ID=", 9) == 0)
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continue;
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if (!utf8_is_printable_n(data, length)) {
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const char *c;
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uint64_t le64;
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c = memchr(data, '=', length);
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if (!c) {
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log_error("Invalid field.");
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return -EINVAL;
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}
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fwrite(data, c - (const char*) data, 1, f);
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fputc('\n', f);
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le64 = htole64(length - (c - (const char*) data) - 1);
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fwrite(&le64, sizeof(le64), 1, f);
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fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f);
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} else
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fwrite(data, length, 1, f);
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fputc('\n', f);
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}
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fputc('\n', f);
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return 0;
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}
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void json_escape(
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FILE *f,
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const char* p,
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size_t l,
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OutputFlags flags) {
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assert(f);
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assert(p);
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if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD)
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fputs("null", f);
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else if (!utf8_is_printable_n(p, l)) {
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bool not_first = false;
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fputs("[ ", f);
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while (l > 0) {
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if (not_first)
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fprintf(f, ", %u", (uint8_t) *p);
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else {
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not_first = true;
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fprintf(f, "%u", (uint8_t) *p);
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}
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p++;
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l--;
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}
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fputs(" ]", f);
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} else {
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fputc('\"', f);
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while (l > 0) {
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if (*p == '"' || *p == '\\') {
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fputc('\\', f);
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fputc(*p, f);
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} else if (*p < ' ')
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fprintf(f, "\\u%04x", *p);
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else
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fputc(*p, f);
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p++;
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l--;
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}
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fputc('\"', f);
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}
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}
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static int output_json(
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FILE *f,
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sd_journal *j,
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OutputMode mode,
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unsigned n_columns,
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OutputFlags flags) {
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uint64_t realtime, monotonic;
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char *cursor, *k;
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const void *data;
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size_t length;
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sd_id128_t boot_id;
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char sid[33];
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int r;
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Hashmap *h = NULL;
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bool done, separator;
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assert(j);
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sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD);
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r = sd_journal_get_realtime_usec(j, &realtime);
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if (r < 0) {
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log_error("Failed to get realtime timestamp: %s", strerror(-r));
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return r;
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}
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r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id);
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if (r < 0) {
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log_error("Failed to get monotonic timestamp: %s", strerror(-r));
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return r;
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}
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r = sd_journal_get_cursor(j, &cursor);
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if (r < 0) {
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log_error("Failed to get cursor: %s", strerror(-r));
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return r;
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}
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|
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if (mode == OUTPUT_JSON_PRETTY)
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fprintf(f,
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"{\n"
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"\t\"__CURSOR\" : \"%s\",\n"
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"\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n"
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"\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n"
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"\t\"_BOOT_ID\" : \"%s\"",
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cursor,
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(unsigned long long) realtime,
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(unsigned long long) monotonic,
|
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sd_id128_to_string(boot_id, sid));
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else {
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if (mode == OUTPUT_JSON_SSE)
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|
fputs("data: ", f);
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fprintf(f,
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|
"{ \"__CURSOR\" : \"%s\", "
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|
"\"__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 *eq;
|
|
char *n;
|
|
unsigned u;
|
|
|
|
if (length >= 9 &&
|
|
memcmp(data, "_BOOT_ID=", 9) == 0)
|
|
continue;
|
|
|
|
eq = memchr(data, '=', length);
|
|
if (!eq)
|
|
continue;
|
|
|
|
n = strndup(data, eq - (const char*) data);
|
|
if (!n) {
|
|
r = -ENOMEM;
|
|
goto finish;
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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(
|
|
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, f);
|
|
fputc('\n', f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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(
|
|
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();
|
|
|
|
ret = output_funcs[mode](f, j, mode, n_columns, flags);
|
|
fflush(stdout);
|
|
return ret;
|
|
}
|
|
|
|
int show_journal_by_unit(
|
|
FILE *f,
|
|
const char *unit,
|
|
OutputMode mode,
|
|
unsigned n_columns,
|
|
usec_t not_before,
|
|
unsigned how_many,
|
|
OutputFlags flags) {
|
|
|
|
_cleanup_free_ char *m1 = NULL, *m2 = NULL, *m3 = NULL;
|
|
sd_journal *j = NULL;
|
|
int r;
|
|
unsigned line = 0;
|
|
bool need_seek = false;
|
|
int warn_cutoff = flags & OUTPUT_WARN_CUTOFF;
|
|
|
|
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(&m1, "_SYSTEMD_UNIT=%s", unit) < 0 ||
|
|
asprintf(&m2, "COREDUMP_UNIT=%s", unit) < 0 ||
|
|
asprintf(&m3, "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;
|
|
|
|
/* Look for messages from the service itself */
|
|
r = sd_journal_add_match(j, m1, 0);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
/* Look for coredumps of the service */
|
|
r = sd_journal_add_disjunction(j);
|
|
if (r < 0)
|
|
goto finish;
|
|
r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0);
|
|
if (r < 0)
|
|
goto finish;
|
|
r = sd_journal_add_match(j, m2, 0);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
/* Look for messages from PID 1 about this service */
|
|
r = sd_journal_add_disjunction(j);
|
|
if (r < 0)
|
|
goto finish;
|
|
r = sd_journal_add_match(j, "_PID=1", 0);
|
|
if (r < 0)
|
|
goto finish;
|
|
r = sd_journal_add_match(j, m3, 0);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
/* Seek to end */
|
|
r = sd_journal_seek_tail(j);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
r = sd_journal_previous_skip(j, how_many);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
for (;;) {
|
|
for (;;) {
|
|
usec_t usec;
|
|
|
|
if (need_seek) {
|
|
r = sd_journal_next(j);
|
|
if (r < 0)
|
|
goto finish;
|
|
}
|
|
|
|
if (r == 0)
|
|
break;
|
|
|
|
need_seek = true;
|
|
|
|
if (not_before > 0) {
|
|
r = sd_journal_get_monotonic_usec(j, &usec, NULL);
|
|
|
|
/* -ESTALE is returned if the
|
|
timestamp is not from this boot */
|
|
if (r == -ESTALE)
|
|
continue;
|
|
else if (r < 0)
|
|
goto finish;
|
|
|
|
if (usec < not_before)
|
|
continue;
|
|
}
|
|
|
|
line ++;
|
|
|
|
r = output_journal(f, j, mode, n_columns, flags);
|
|
if (r < 0)
|
|
goto finish;
|
|
}
|
|
|
|
if (warn_cutoff && line < how_many && not_before > 0) {
|
|
sd_id128_t boot_id;
|
|
usec_t cutoff;
|
|
|
|
/* Check whether the cutoff line is too early */
|
|
|
|
r = sd_id128_get_boot(&boot_id);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
if (r > 0 && not_before < cutoff)
|
|
fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n");
|
|
|
|
warn_cutoff = false;
|
|
}
|
|
|
|
if (!(flags & OUTPUT_FOLLOW))
|
|
break;
|
|
|
|
r = sd_journal_wait(j, (usec_t) -1);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
}
|
|
|
|
finish:
|
|
if (j)
|
|
sd_journal_close(j);
|
|
|
|
return r;
|
|
}
|
|
|
|
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"
|
|
};
|
|
|
|
DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode);
|