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authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/stdio/perror.c
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initial check-in, version 0.5.0 v0.5.0
Diffstat (limited to 'src/stdio/perror.c')
-rw-r--r--src/stdio/perror.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/stdio/perror.c b/src/stdio/perror.c
new file mode 100644
index 00000000..e4637c8a
--- /dev/null
+++ b/src/stdio/perror.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include "stdio_impl.h"
+
+void perror(const char *msg)
+{
+#if 1
+	if (msg) fprintf(stderr, "%s: %m\n", msg, strerror(errno));
+	else fprintf(stderr, "%m\n");
+#else
+	FILE *f = stderr;
+	char *errstr = strerror(errno);
+
+	FLOCK(f);
+	
+	if (msg) {
+		__fwritex(msg, strlen(msg), f);
+		__putc_unlocked(':', f);
+		__putc_unlocked(' ', f);
+	}
+	__fwritex(errstr, strlen(errstr), f);
+	__putc_unlocked('\n', f);
+
+	FUNLOCK(f);
+#endif
+}