xfs_scrub: log operational messages when interactive

[thirdparty/xfsprogs-dev.git] / scrub / common.c

diff --git a/scrub/common.c b/scrub/common.c
index 17c3699aed37510ba92ca593583178936dae2ae6..4f26bf8d9b52437ce3ab9536408304fef7eef219 100644 (file)
--- a/scrub/common.c
+++ b/scrub/common.c
@@ -21,6 +21,7 @@
 #include <pthread.h>
 #include <stdbool.h>
 #include <sys/statvfs.h>
+#include <syslog.h>
 #include "platform_defs.h"
 #include "xfs.h"
 #include "xfs_fs.h"
@@ -29,6 +30,8 @@
 #include "common.h"
 #include "progress.h"
 
+extern char            *progname;
+
 /*
  * Reporting Status to the Console
  *
@@ -64,6 +67,12 @@ static const char *err_str[] = {
        [S_PREEN]       = "Optimized",
 };
 
+static int log_level[] = {
+       [S_ERROR]       = LOG_ERR,
+       [S_WARN]        = LOG_WARNING,
+       [S_INFO]        = LOG_INFO,
+};
+
 /* If stream is a tty, clear to end of line to clean up progress bar. */
 static inline const char *stream_start(FILE *stream)
 {
@@ -131,6 +140,46 @@ out_record:
        pthread_mutex_unlock(&ctx->lock);
 }
 
+/* Log a message to syslog. */
+#define LOG_BUFSZ      4096
+#define LOGNAME_BUFSZ  256
+void
+__str_log(
+       struct scrub_ctx        *ctx,
+       enum error_level        level,
+       const char              *format,
+       ...)
+{
+       va_list                 args;
+       char                    logname[LOGNAME_BUFSZ];
+       char                    buf[LOG_BUFSZ];
+       int                     sz;
+
+       /* We only want to hear about optimizing when in debug/verbose mode. */
+       if (level == S_PREEN && !debug && !verbose)
+               return;
+
+       /*
+        * Skip logging if we're being run as a service (presumably the
+        * service will log stdout/stderr); if we're being run in a non
+        * interactive manner (assume we're a service); or if we're in
+        * debug mode.
+        */
+       if (is_service || !isatty(fileno(stdin)) || debug)
+               return;
+
+       snprintf(logname, LOGNAME_BUFSZ, "%s@%s", progname, ctx->mntpoint);
+       openlog(logname, LOG_PID, LOG_DAEMON);
+
+       sz = snprintf(buf, LOG_BUFSZ, "%s: ", _(err_str[level]));
+       va_start(args, format);
+       vsnprintf(buf + sz, LOG_BUFSZ - sz, format, args);
+       va_end(args);
+       syslog(log_level[level], "%s", buf);
+
+       closelog();
+}
+
 double
 timeval_subtract(
        struct timeval          *tv1,