summaryrefslogtreecommitdiff
path: root/src/basic/log.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/basic/log.c')
-rw-r--r--src/basic/log.c211
1 files changed, 125 insertions, 86 deletions
diff --git a/src/basic/log.c b/src/basic/log.c
index b96afc4de4..bd6c96c4f8 100644
--- a/src/basic/log.c
+++ b/src/basic/log.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -19,26 +17,43 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdarg.h>
-#include <stdio.h>
#include <errno.h>
-#include <unistd.h>
#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/signalfd.h>
#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/uio.h>
#include <sys/un.h>
-#include <stddef.h>
-#include <printf.h>
+#include <time.h>
+#include <unistd.h>
#include "sd-messages.h"
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "formats-util.h"
+#include "io-util.h"
#include "log.h"
-#include "util.h"
-#include "missing.h"
#include "macro.h"
-#include "socket-util.h"
-#include "formats-util.h"
+#include "missing.h"
+#include "parse-util.h"
+#include "proc-cmdline.h"
#include "process-util.h"
-#include "terminal-util.h"
#include "signal-util.h"
+#include "socket-util.h"
+#include "stdio-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "syslog-util.h"
+#include "terminal-util.h"
+#include "time-util.h"
+#include "util.h"
#define SNDBUF_SIZE (8*1024*1024)
@@ -118,7 +133,7 @@ static int create_log_socket(int type) {
if (fd < 0)
return -errno;
- fd_inc_sndbuf(fd, SNDBUF_SIZE);
+ (void) fd_inc_sndbuf(fd, SNDBUF_SIZE);
/* We need a blocking fd here since we'd otherwise lose
messages way too early. However, let's not hang forever in the
@@ -150,7 +165,7 @@ static int log_open_syslog(void) {
goto fail;
}
- if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(syslog_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
safe_close(syslog_fd);
/* Some legacy syslog systems still use stream
@@ -162,7 +177,7 @@ static int log_open_syslog(void) {
goto fail;
}
- if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(syslog_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
r = -errno;
goto fail;
}
@@ -200,7 +215,7 @@ static int log_open_journal(void) {
goto fail;
}
- if (connect(journal_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
+ if (connect(journal_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
r = -errno;
goto fail;
}
@@ -315,11 +330,9 @@ static int write_to_console(
const char *file,
int line,
const char *func,
- const char *object_field,
- const char *object,
const char *buffer) {
- char location[64], prefix[1 + DECIMAL_STR_MAX(int) + 2];
+ char location[256], prefix[1 + DECIMAL_STR_MAX(int) + 2];
struct iovec iovec[6] = {};
unsigned n = 0;
bool highlight;
@@ -328,7 +341,7 @@ static int write_to_console(
return 0;
if (log_target == LOG_TARGET_CONSOLE_PREFIXED) {
- sprintf(prefix, "<%i>", level);
+ xsprintf(prefix, "<%i>", level);
IOVEC_SET_STRING(iovec[n++], prefix);
}
@@ -340,10 +353,10 @@ static int write_to_console(
}
if (highlight)
- IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_RED_ON);
+ IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_RED);
IOVEC_SET_STRING(iovec[n++], buffer);
if (highlight)
- IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_OFF);
+ IOVEC_SET_STRING(iovec[n++], ANSI_NORMAL);
IOVEC_SET_STRING(iovec[n++], "\n");
if (writev(console_fd, iovec, n) < 0) {
@@ -375,8 +388,6 @@ static int write_to_syslog(
const char *file,
int line,
const char *func,
- const char *object_field,
- const char *object,
const char *buffer) {
char header_priority[2 + DECIMAL_STR_MAX(int) + 1],
@@ -435,11 +446,9 @@ static int write_to_syslog(
static int write_to_kmsg(
int level,
int error,
- const char*file,
+ const char *file,
int line,
const char *func,
- const char *object_field,
- const char *object,
const char *buffer) {
char header_priority[2 + DECIMAL_STR_MAX(int) + 1],
@@ -470,7 +479,8 @@ static int log_do_header(
int level,
int error,
const char *file, int line, const char *func,
- const char *object_field, const char *object) {
+ const char *object_field, const char *object,
+ const char *extra_field, const char *extra) {
snprintf(header, size,
"PRIORITY=%i\n"
@@ -480,6 +490,7 @@ static int log_do_header(
"%s%s%s"
"%s%.*i%s"
"%s%s%s"
+ "%s%s%s"
"SYSLOG_IDENTIFIER=%s\n",
LOG_PRI(level),
LOG_FAC(level),
@@ -498,6 +509,9 @@ static int log_do_header(
isempty(object) ? "" : object_field,
isempty(object) ? "" : object,
isempty(object) ? "" : "\n",
+ isempty(extra) ? "" : extra_field,
+ isempty(extra) ? "" : extra,
+ isempty(extra) ? "" : "\n",
program_invocation_short_name);
return 0;
@@ -506,11 +520,13 @@ static int log_do_header(
static int write_to_journal(
int level,
int error,
- const char*file,
+ const char *file,
int line,
const char *func,
const char *object_field,
const char *object,
+ const char *extra_field,
+ const char *extra,
const char *buffer) {
char header[LINE_MAX];
@@ -520,7 +536,7 @@ static int write_to_journal(
if (journal_fd < 0)
return 0;
- log_do_header(header, sizeof(header), level, error, file, line, func, object_field, object);
+ log_do_header(header, sizeof(header), level, error, file, line, func, object_field, object, extra_field, extra);
IOVEC_SET_STRING(iovec[0], header);
IOVEC_SET_STRING(iovec[1], "MESSAGE=");
@@ -544,10 +560,15 @@ static int log_dispatch(
const char *func,
const char *object_field,
const char *object,
+ const char *extra,
+ const char *extra_field,
char *buffer) {
assert(buffer);
+ if (error < 0)
+ error = -error;
+
if (log_target == LOG_TARGET_NULL)
return -error;
@@ -555,9 +576,6 @@ static int log_dispatch(
if ((level & LOG_FACMASK) == 0)
level = log_facility | LOG_PRI(level);
- if (error < 0)
- error = -error;
-
do {
char *e;
int k = 0;
@@ -574,7 +592,7 @@ static int log_dispatch(
log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
log_target == LOG_TARGET_JOURNAL) {
- k = write_to_journal(level, error, file, line, func, object_field, object, buffer);
+ k = write_to_journal(level, error, file, line, func, object_field, object, extra_field, extra, buffer);
if (k < 0) {
if (k != -EAGAIN)
log_close_journal();
@@ -585,7 +603,7 @@ static int log_dispatch(
if (log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
log_target == LOG_TARGET_SYSLOG) {
- k = write_to_syslog(level, error, file, line, func, object_field, object, buffer);
+ k = write_to_syslog(level, error, file, line, func, buffer);
if (k < 0) {
if (k != -EAGAIN)
log_close_syslog();
@@ -600,7 +618,7 @@ static int log_dispatch(
log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
log_target == LOG_TARGET_KMSG)) {
- k = write_to_kmsg(level, error, file, line, func, object_field, object, buffer);
+ k = write_to_kmsg(level, error, file, line, func, buffer);
if (k < 0) {
log_close_kmsg();
log_open_console();
@@ -608,7 +626,7 @@ static int log_dispatch(
}
if (k <= 0)
- (void) write_to_console(level, error, file, line, func, object_field, object, buffer);
+ (void) write_to_console(level, error, file, line, func, buffer);
buffer = e;
} while (buffer);
@@ -634,13 +652,13 @@ int log_dump_internal(
if (_likely_(LOG_PRI(level) > log_max_level))
return -error;
- return log_dispatch(level, error, file, line, func, NULL, NULL, buffer);
+ return log_dispatch(level, error, file, line, func, NULL, NULL, NULL, NULL, buffer);
}
int log_internalv(
int level,
int error,
- const char*file,
+ const char *file,
int line,
const char *func,
const char *format,
@@ -661,13 +679,13 @@ int log_internalv(
vsnprintf(buffer, sizeof(buffer), format, ap);
- return log_dispatch(level, error, file, line, func, NULL, NULL, buffer);
+ return log_dispatch(level, error, file, line, func, NULL, NULL, NULL, NULL, buffer);
}
int log_internal(
int level,
int error,
- const char*file,
+ const char *file,
int line,
const char *func,
const char *format, ...) {
@@ -685,11 +703,13 @@ int log_internal(
int log_object_internalv(
int level,
int error,
- const char*file,
+ const char *file,
int line,
const char *func,
const char *object_field,
const char *object,
+ const char *extra_field,
+ const char *extra,
const char *format,
va_list ap) {
@@ -723,24 +743,26 @@ int log_object_internalv(
vsnprintf(b, l, format, ap);
- return log_dispatch(level, error, file, line, func, object_field, object, buffer);
+ return log_dispatch(level, error, file, line, func, object_field, object, extra_field, extra, buffer);
}
int log_object_internal(
int level,
int error,
- const char*file,
+ const char *file,
int line,
const char *func,
const char *object_field,
const char *object,
+ const char *extra_field,
+ const char *extra,
const char *format, ...) {
va_list ap;
int r;
va_start(ap, format);
- r = log_object_internalv(level, error, file, line, func, object_field, object, format, ap);
+ r = log_object_internalv(level, error, file, line, func, object_field, object, extra_field, extra, format, ap);
va_end(ap);
return r;
@@ -760,12 +782,12 @@ static void log_assert(
return;
DISABLE_WARNING_FORMAT_NONLITERAL;
- snprintf(buffer, sizeof(buffer), format, text, file, line, func);
+ xsprintf(buffer, format, text, file, line, func);
REENABLE_WARNING;
log_abort_msg = buffer;
- log_dispatch(level, 0, file, line, func, NULL, NULL, buffer);
+ log_dispatch(level, 0, file, line, func, NULL, NULL, NULL, NULL, buffer);
}
noreturn void log_assert_failed(const char *text, const char *file, int line, const char *func) {
@@ -788,6 +810,52 @@ int log_oom_internal(const char *file, int line, const char *func) {
return -ENOMEM;
}
+int log_format_iovec(
+ struct iovec *iovec,
+ unsigned iovec_len,
+ unsigned *n,
+ bool newline_separator,
+ int error,
+ const char *format,
+ va_list ap) {
+
+ static const char nl = '\n';
+
+ while (format && *n + 1 < iovec_len) {
+ va_list aq;
+ char *m;
+ int r;
+
+ /* We need to copy the va_list structure,
+ * since vasprintf() leaves it afterwards at
+ * an undefined location */
+
+ if (error != 0)
+ errno = error;
+
+ va_copy(aq, ap);
+ r = vasprintf(&m, format, aq);
+ va_end(aq);
+ if (r < 0)
+ return -EINVAL;
+
+ /* Now, jump enough ahead, so that we point to
+ * the next format string */
+ VA_FORMAT_ADVANCE(format, ap);
+
+ IOVEC_SET_STRING(iovec[(*n)++], m);
+
+ if (newline_separator) {
+ iovec[*n].iov_base = (char*) &nl;
+ iovec[*n].iov_len = 1;
+ (*n)++;
+ }
+
+ format = va_arg(ap, char *);
+ }
+ return 0;
+}
+
int log_struct_internal(
int level,
int error,
@@ -820,54 +888,25 @@ int log_struct_internal(
char header[LINE_MAX];
struct iovec iovec[17] = {};
unsigned n = 0, i;
+ int r;
struct msghdr mh = {
.msg_iov = iovec,
};
- static const char nl = '\n';
bool fallback = false;
/* If the journal is available do structured logging */
- log_do_header(header, sizeof(header), level, error, file, line, func, NULL, NULL);
+ log_do_header(header, sizeof(header), level, error, file, line, func, NULL, NULL, NULL, NULL);
IOVEC_SET_STRING(iovec[n++], header);
va_start(ap, format);
- while (format && n + 1 < ELEMENTSOF(iovec)) {
- va_list aq;
- char *m;
-
- /* We need to copy the va_list structure,
- * since vasprintf() leaves it afterwards at
- * an undefined location */
-
- if (error != 0)
- errno = error;
-
- va_copy(aq, ap);
- if (vasprintf(&m, format, aq) < 0) {
- va_end(aq);
- fallback = true;
- goto finish;
- }
- va_end(aq);
-
- /* Now, jump enough ahead, so that we point to
- * the next format string */
- VA_FORMAT_ADVANCE(format, ap);
-
- IOVEC_SET_STRING(iovec[n++], m);
-
- iovec[n].iov_base = (char*) &nl;
- iovec[n].iov_len = 1;
- n++;
-
- format = va_arg(ap, char *);
+ r = log_format_iovec(iovec, ELEMENTSOF(iovec), &n, true, error, format, ap);
+ if (r < 0)
+ fallback = true;
+ else {
+ mh.msg_iovlen = n;
+ (void) sendmsg(journal_fd, &mh, MSG_NOSIGNAL);
}
- mh.msg_iovlen = n;
-
- (void) sendmsg(journal_fd, &mh, MSG_NOSIGNAL);
-
- finish:
va_end(ap);
for (i = 1; i < n; i += 2)
free(iovec[i].iov_base);
@@ -903,7 +942,7 @@ int log_struct_internal(
if (!found)
return -error;
- return log_dispatch(level, error, file, line, func, NULL, NULL, buf + 8);
+ return log_dispatch(level, error, file, line, func, NULL, NULL, NULL, NULL, buf + 8);
}
int log_set_target_from_string(const char *e) {
@@ -922,7 +961,7 @@ int log_set_max_level_from_string(const char *e) {
t = log_level_from_string(e);
if (t < 0)
- return t;
+ return -EINVAL;
log_set_max_level(t);
return 0;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-22 22:37:55 +0000