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authorsin <sin@2f30.org>2014-02-06 11:14:33 +0000
committersin <sin@2f30.org>2014-02-06 11:14:33 +0000
commit51664faebcc10b53a1a78cff95f0efc04a2c7f8e (patch)
treefeb5e28aab2356c97a4624bffc45948ca6fee4be /util
Initial commit
Diffstat (limited to 'util')
-rw-r--r--util/eprintf.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/util/eprintf.c b/util/eprintf.c
new file mode 100644
index 0000000..6d6fa65
--- /dev/null
+++ b/util/eprintf.c
@@ -0,0 +1,46 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../util.h"
+
+char *argv0;
+
+static void venprintf(int, const char *, va_list);
+
+void
+eprintf(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ venprintf(EXIT_FAILURE, fmt, ap);
+ va_end(ap);
+}
+
+void
+enprintf(int status, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ venprintf(status, fmt, ap);
+ va_end(ap);
+}
+
+void
+venprintf(int status, const char *fmt, va_list ap)
+{
+ fprintf(stderr, "%s: ", argv0);
+
+ vfprintf(stderr, fmt, ap);
+
+ if(fmt[0] && fmt[strlen(fmt)-1] == ':') {
+ fputc(' ', stderr);
+ perror(NULL);
+ }
+
+ exit(status);
+}