#include <unistd.h>
#include <string.h>
#include <errno.h>
+#include <fcntl.h>
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#include <pulsecore/macro.h>
#include <pulsecore/core-util.h>
+#include <pulsecore/core-error.h>
#include <pulsecore/once.h>
#include <pulsecore/ratelimit.h>
#include <pulsecore/thread.h>
+#include <pulsecore/i18n.h>
#include "log.h"
#define ENV_LOG_BACKTRACE "PULSE_LOG_BACKTRACE"
#define ENV_LOG_BACKTRACE_SKIP "PULSE_LOG_BACKTRACE_SKIP"
#define ENV_LOG_NO_RATELIMIT "PULSE_LOG_NO_RATE_LIMIT"
+#define LOG_MAX_SUFFIX_NUMBER 99
static char *ident = NULL; /* in local charset format */
-static pa_log_target_t target = PA_LOG_STDERR, target_override;
+static pa_log_target target = { PA_LOG_STDERR, NULL };
+static pa_log_target_type_t target_override;
static pa_bool_t target_override_set = FALSE;
static pa_log_level_t maximum_level = PA_LOG_ERROR, maximum_level_override = PA_LOG_ERROR;
static unsigned show_backtrace = 0, show_backtrace_override = 0, skip_backtrace = 0;
maximum_level = l;
}
-void pa_log_set_target(pa_log_target_t t) {
- pa_assert(t < PA_LOG_TARGET_MAX);
+int pa_log_set_target(pa_log_target *t) {
+ int fd = -1;
+ int old_fd;
+
+ pa_assert(t);
+
+ switch (t->type) {
+ case PA_LOG_STDERR:
+ case PA_LOG_SYSLOG:
+ case PA_LOG_NULL:
+ break;
+ case PA_LOG_FILE:
+ if ((fd = pa_open_cloexec(t->file, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR)) < 0) {
+ pa_log(_("Failed to open target file '%s'."), t->file);
+ return -1;
+ }
+ break;
+ case PA_LOG_NEWFILE: {
+ char *file_path;
+ char *p;
+ unsigned version;
+
+ file_path = pa_sprintf_malloc("%s.xx", t->file);
+ p = file_path + strlen(t->file);
+
+ for (version = 0; version <= LOG_MAX_SUFFIX_NUMBER; version++) {
+ memset(p, 0, 3); /* Overwrite the ".xx" part in file_path with zero bytes. */
+
+ if (version > 0)
+ pa_snprintf(p, 4, ".%u", version); /* Why 4? ".xx" + termitating zero byte. */
- target = t;
+ if ((fd = pa_open_cloexec(file_path, O_WRONLY | O_TRUNC | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR)) >= 0)
+ break;
+ }
+
+ if (version > LOG_MAX_SUFFIX_NUMBER) {
+ pa_log(_("Tried to open target file '%s', '%s.1', '%s.2' ... '%s.%d', but all failed."),
+ file_path, file_path, file_path, file_path, LOG_MAX_SUFFIX_NUMBER);
+ pa_xfree(file_path);
+ return -1;
+ } else
+ pa_log_debug("Opened target file %s\n", file_path);
+
+ pa_xfree(file_path);
+ break;
+ }
+ }
+
+ target.type = t->type;
+ pa_xfree(target.file);
+ target.file = pa_xstrdup(t->file);
+
+ old_fd = log_fd;
+ log_fd = fd;
+
+ if (old_fd >= 0)
+ pa_close(old_fd);
+
+ return 0;
}
void pa_log_set_flags(pa_log_flags_t _flags, pa_log_merge_t merge) {
char *t, *n;
int saved_errno = errno;
char *bt = NULL;
- pa_log_target_t _target;
+ pa_log_target_type_t _target;
pa_log_level_t _maximum_level;
unsigned _show_backtrace;
pa_log_flags_t _flags;
init_defaults();
- _target = target_override_set ? target_override : target;
+ _target = target_override_set ? target_override : target.type;
_maximum_level = PA_MAX(maximum_level, maximum_level_override);
_show_backtrace = PA_MAX(show_backtrace, show_backtrace_override);
_flags = flags | flags_override;
}
#endif
- case PA_LOG_FD: {
+ case PA_LOG_FILE:
+ case PA_LOG_NEWFILE: {
if (log_fd >= 0) {
char metadata[256];
pa_snprintf(metadata, sizeof(metadata), "\n%c %s %s", level_to_char[level], timestamp, location);
if ((write(log_fd, metadata, strlen(metadata)) < 0) || (write(log_fd, t, strlen(t)) < 0)) {
+ pa_log_target new_target = { .type = PA_LOG_STDERR, .file = NULL };
saved_errno = errno;
pa_log_set_fd(-1);
fprintf(stderr, "%s\n", "Error writing logs to a file descriptor. Redirect log messages to console.");
fprintf(stderr, "%s %s\n", metadata, t);
- pa_log_set_target(PA_LOG_STDERR);
+ pa_log_set_target(&new_target);
}
}
return pa_ratelimit_test(&ratelimit, level);
}
+
+pa_log_target *pa_log_target_new(pa_log_target_type_t type, const char *file) {
+ pa_log_target *t = NULL;
+
+ t = pa_xnew(pa_log_target, 1);
+
+ t->type = type;
+ t->file = pa_xstrdup(file);
+
+ return t;
+}
+
+void pa_log_target_free(pa_log_target *t) {
+ pa_assert(t);
+
+ pa_xfree(t->file);
+ pa_xfree(t);
+}
+
+pa_log_target *pa_log_parse_target(const char *string) {
+ pa_log_target *t = NULL;
+
+ pa_assert(string);
+
+ if (pa_streq(string, "stderr"))
+ t = pa_log_target_new(PA_LOG_STDERR, NULL);
+ else if (pa_streq(string, "syslog"))
+ t = pa_log_target_new(PA_LOG_SYSLOG, NULL);
+ else if (pa_streq(string, "null"))
+ t = pa_log_target_new(PA_LOG_NULL, NULL);
+ else if (pa_startswith(string, "file:"))
+ t = pa_log_target_new(PA_LOG_FILE, string + 5);
+ else if (pa_startswith(string, "newfile:"))
+ t = pa_log_target_new(PA_LOG_NEWFILE, string + 8);
+ else
+ pa_log(_("Invalid log target."));
+
+ return t;
+}
+
+char *pa_log_target_to_string(const pa_log_target *t) {
+ char *string = NULL;
+
+ pa_assert(t);
+
+ switch (t->type) {
+ case PA_LOG_STDERR:
+ string = pa_xstrdup("stderr");
+ break;
+ case PA_LOG_SYSLOG:
+ string = pa_xstrdup("syslog");
+ break;
+ case PA_LOG_NULL:
+ string = pa_xstrdup("null");
+ break;
+ case PA_LOG_FILE:
+ string = pa_sprintf_malloc("file:%s", t->file);
+ break;
+ case PA_LOG_NEWFILE:
+ string = pa_sprintf_malloc("newfile:%s", t->file);
+ break;
+ }
+
+ return string;
+}