/*
- Copyright 2015 IoT.bzh
+ Copyright (C) 2016, 2017 "IoT.bzh"
author: José Bollo <jose.bollo@iot.bzh>
int verbosity = 1;
+#define LEVEL(x) ((x) < 0 ? 0 : (x) > 7 ? 7 : (x))
+
+#if defined(VERBOSE_WITH_SYSLOG)
+
+#include <syslog.h>
+
+void vverbose(int level, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char *p;
+
+ if (file == NULL || vasprintf(&p, fmt, args) < 0)
+ vsyslog(level, fmt, args);
+ else {
+ syslog(LEVEL(level), "%s [%s:%d, function]", p, file, line, function);
+ free(p);
+ }
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ openlog(name, LOG_PERROR, authority ? LOG_AUTH : LOG_USER);
+}
+
+#elif defined(VERBOSE_WITH_SYSTEMD)
+
+#define SD_JOURNAL_SUPPRESS_LOCATION
+
+#include <systemd/sd-journal.h>
+
+static const char *appname;
+
+static int appauthority;
+
+void vverbose(int level, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char lino[20];
+
+ if (file == NULL) {
+ sd_journal_printv(level, fmt, args);
+ } else {
+ sprintf(lino, "%d", line);
+ sd_journal_printv_with_location(level, file, lino, function, fmt, args);
+ }
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ appname = name;
+ appauthority = authority;
+}
+
+#else
+
+#include <unistd.h>
+#include <errno.h>
+
+static const char *appname;
+
+static int appauthority;
+
static const char *prefixes[] = {
"<0> EMERGENCY",
"<1> ALERT",
"<7> DEBUG"
};
-void verbose(int level, const char *file, int line, const char *fmt, ...)
+void vverbose(int level, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ int saverr = errno;
+ int tty = isatty(fileno(stderr));
+ errno = saverr;
+
+ fprintf(stderr, "%s: ", prefixes[LEVEL(level)] + (tty ? 4 : 0));
+ vfprintf(stderr, fmt, args);
+ if (file != NULL && (!tty || verbosity > 2))
+ fprintf(stderr, " [%s:%d,%s]\n", file, line, function);
+ else
+ fprintf(stderr, "\n");
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ appname = name;
+ appauthority = authority;
+}
+
+#endif
+
+void verbose(int level, const char *file, int line, const char *function, const char *fmt, ...)
{
va_list ap;
- fprintf(stderr, "%s: ", prefixes[level < 0 ? 0 : level > 7 ? 7 : level]);
va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
+ vverbose(level, file, line, function, fmt, ap);
va_end(ap);
- fprintf(stderr, " [%s:%d]\n", file, line);
}
+