if (rc < 0) return rc;
return (rc != len+4);
}
+
+#include <stdarg.h>
+
+static int use_syslog = 0;
+
+void eprintf(const char *fmt, ...)
+{
+ va_list va;
+ va_start(va, fmt);
+ if (use_syslog)
+ vsyslog(LOG_ERR, fmt, va);
+ else
+ vfprintf(stderr, fmt, va);
+ va_end(va);
+}
+
+void switch_syslog(const char *name)
+{
+ openlog(name, LOG_PID, LOG_DAEMON);
+ use_syslog = 1;
+}
#include <sys/wait.h>
#include <sys/statfs.h>
#include <linux/version.h>
+#include <syslog.h>
/* Include config.h to pick up dependency for --prefix usage. */
#include "config.h"
-#define dbug(level, args...) {if (verbose>=level) {fprintf(stderr,"%s:%s:%d ",__name__,__FUNCTION__, __LINE__); fprintf(stderr,args);}}
+extern void eprintf(const char *fmt, ...);
+extern void switch_syslog(const char *name);
+
+#define dbug(level, args...) do {if (verbose>=level) {eprintf("%s:%s:%d ",__name__,__FUNCTION__, __LINE__); eprintf(args);}} while (0)
extern char *__name__;
/* print to stderr */
-#define err(args...) fprintf(stderr,args)
+#define err(args...) eprintf(args)
/* better perror() */
#define perr(args...) do { \
int _errno = errno; \
- fputs("ERROR: ", stderr); \
- fprintf(stderr, args); \
- fprintf(stderr, ": %s\n", strerror(_errno)); \
+ eprintf("ERROR: "); \
+ eprintf(args); \
+ eprintf(": %s\n", strerror(_errno)); \
} while (0)
/* Error messages. Use these for serious errors, not informational messages to stderr. */
-#define _err(args...) do {fprintf(stderr,"%s:%s:%d: ERROR: ",__name__, __FUNCTION__, __LINE__); fprintf(stderr,args);} while(0)
+#define _err(args...) do {eprintf("%s:%s:%d: ERROR: ",__name__, __FUNCTION__, __LINE__); eprintf(args);} while(0)
#define _perr(args...) do { \
int _errno = errno; \
_err(args); \
- fprintf(stderr, ": %s\n", strerror(_errno)); \
+ eprintf(": %s\n", strerror(_errno)); \
} while (0)
#define overflow_error() _err("Internal buffer overflow. Please file a bug report.\n")