From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 18 May 2013 14:20:42 +0000 (-0400)
Subject: make err.h functions print __progname
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=69ee9b2cb169ee843ac9e209f919d088499152f7

make err.h functions print __progname

patch by Strake. previously is was not feasible to duplicate this
functionality of the functions these were modeled on, since argv[0]
was not saved at program startup, but now that it's available it's
easy to use.
---

diff --git a/src/legacy/err.c b/src/legacy/err.c
index 0f748538..7b167b36 100644
--- a/src/legacy/err.c
+++ b/src/legacy/err.c
@@ -3,14 +3,18 @@
 #include <stdarg.h>
 #include <stdlib.h>
 
+extern char *__progname;
+
 void vwarn(const char *fmt, va_list ap)
 {
+	fprintf (stderr, "%s: ", __progname);
 	if (fmt) vfprintf(stderr, fmt, ap);
 	perror("");
 }
 
 void vwarnx(const char *fmt, va_list ap)
 {
+	fprintf (stderr, "%s: ", __progname);
 	if (fmt) vfprintf(stderr, fmt, ap);
 	putc('\n', stderr);
 }