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Check argument filename length before copying.

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$ gzip `perl -e 'for(1..10240){ print "a"}'`
This commit is contained in:
Wolfram Schneider 1997-12-27 03:38:39 +00:00
parent 388610239f
commit 6043106601
1 changed files with 8 additions and 1 deletions
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9
gnu/usr.bin/gzip/gzip.c
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@ -45,7 +45,7 @@ static char *license_msg[] = {
*/
#ifdef RCSID
static char rcsid[] = "$Id: gzip.c,v 1.6 1997/02/22 15:45:57 peter Exp $";
static char rcsid[] = "$Id: gzip.c,v 1.7 1997/03/15 22:43:58 guido Exp $";
#endif
#include <ctype.h>
@ -1006,6 +1006,13 @@ local int get_istat(iname, sbuf)
char *dot; /* pointer to ifname extension, or NULL */
#endif
if (strlen(iname) >= sizeof(ifname) - 3) {
errno = ENAMETOOLONG;
perror(iname);
exit_code = ERROR;
return ERROR;
}
strcpy(ifname, iname);
/* If input file exists, return OK. */