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-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
+}