diff options
Diffstat (limited to 'usr.sbin/lpr/common_source/startdaemon.c')
| -rw-r--r-- | usr.sbin/lpr/common_source/startdaemon.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/usr.sbin/lpr/common_source/startdaemon.c b/usr.sbin/lpr/common_source/startdaemon.c index 807a976..a876c1e 100644 --- a/usr.sbin/lpr/common_source/startdaemon.c +++ b/usr.sbin/lpr/common_source/startdaemon.c @@ -48,6 +48,8 @@ static char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94"; #include "lp.h" #include "pathnames.h" +extern uid_t uid, euid; + static void perr __P((char *)); /* @@ -73,12 +75,18 @@ startdaemon(printer) #ifndef SUN_LEN #define SUN_LEN(unp) (strlen((unp)->sun_path) + 2) #endif + seteuid(euid); if (connect(s, (struct sockaddr *)&un, SUN_LEN(&un)) < 0) { + seteuid(uid); perr("connect"); (void) close(s); return(0); } - (void) sprintf(buf, "\1%s\n", printer); + seteuid(uid); + if (snprintf(buf, sizeof buf, "\1%s\n", printer) > sizeof buf-1) { + close(s); + return (0); + } n = strlen(buf); if (write(s, buf, n) != n) { perr("write"); |
