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Prevent a NULL dereferencation when given a garbage command line.

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PR:		bin/3206
Submitted by:	blank@fox.uni-trier.de
This commit is contained in:
Joerg Wunsch 1997-08-23 14:09:36 +00:00
parent c844b96e15
commit 84c2e30193
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=28612
1 changed files with 5 additions and 2 deletions
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7
usr.bin/su/su.c
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@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)su.c 8.3 (Berkeley) 4/2/94";
#endif
static const char rcsid[] =
"$Id: su.c,v 1.20 1997/05/10 19:01:32 davidn Exp $";
"$Id: su.c,v 1.21 1997/08/12 06:45:43 charnier Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -151,7 +151,10 @@ main(argc, argv)
break;
}
if((nargv = malloc (sizeof (char *) * (argc + 4))) == NULL) {
if (user == NULL)
usage();
if ((nargv = malloc (sizeof (char *) * (argc + 4))) == NULL) {
errx(1, "malloc failure");
}