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asprintf is safer. add error trap for malloc failure

This commit is contained in:
itojun 2003-07-14 09:38:14 +00:00
parent 2fe0488981
commit 5d7783072e
1 changed files with 7 additions and 6 deletions
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13
usr.bin/mixerctl/mixerctl.c
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@ -1,4 +1,4 @@
/* $NetBSD: mixerctl.c,v 1.18 2003/06/23 13:05:49 agc Exp $ */
/* $NetBSD: mixerctl.c,v 1.19 2003/07/14 09:38:14 itojun Exp $ */
/*
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@ -38,7 +38,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: mixerctl.c,v 1.18 2003/06/23 13:05:49 agc Exp $");
__RCSID("$NetBSD: mixerctl.c,v 1.19 2003/07/14 09:38:14 itojun Exp $");
#endif
#include <stdio.h>
@ -71,10 +71,11 @@ mixer_devinfo_t *infos;
static char *
catstr(char *p, char *q)
{
char *r = malloc(strlen(p) + strlen(q) + 2);
strcpy(r, p);
strcat(r, ".");
strcat(r, q);
char *r;
asprintf(&r, "%s.%s", p, q);
if (!r)
err(1, "malloc");
return r;
}