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Add sanity checking to argument for -# and -i. Require these

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arguments to be numbers.  Also use '0' base to allow hex, octal or
decimal numbers.

This was done by me based on ideas in pr 3556, submitted by Uwe
Laubenstein and commented upon by j@uriah.heep.sax.de (J Wunsch).

PR: 3556
This commit is contained in:
Warner Losh 1999-01-06 08:25:56 +00:00
parent be47d628ca
commit 65073469e3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=42339
1 changed files with 8 additions and 4 deletions
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12
usr.sbin/lpr/lpr/lpr.c
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@ -48,7 +48,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)from: lpr.c 8.4 (Berkeley) 4/28/95";
#endif
static const char rcsid[] =
"$Id: lpr.c,v 1.24 1998/04/17 17:25:49 obrien Exp $";
"$Id: lpr.c,v 1.25 1998/09/11 18:49:33 wollman Exp $";
#endif /* not lint */
/*
@ -126,7 +126,7 @@ main(argc, argv)
{
struct passwd *pw;
struct group *gptr;
char *arg, *cp, *printer;
char *arg, *cp, *printer, *p;
char buf[BUFSIZ];
int c, i, f, errs;
struct stat stb;
@ -154,7 +154,9 @@ main(argc, argv)
":#:1:2:3:4:C:J:P:T:U:cdfghi:lnmprstvw:")) != -1)
switch (c) {
case '#': /* n copies */
i = atoi(optarg);
i = strtol(optarg, &p, 0);
if (*p)
errx(1, "Bad argument to -#, number expected");
if (i > 0)
ncopies = i;
break;
@ -210,7 +212,9 @@ main(argc, argv)
case 'i': /* indent output */
iflag++;
indent = atoi(optarg);
indent = strtol(optarg, &p, 0);
if (*p)
errx(1, "Bad argument to -i, number expected");
break;
case 'm': /* send mail when done */