diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2000-09-07 17:23:27 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2000-09-07 17:23:27 +0000 |
| commit | 4f5c276138747ef97183ba337c8f6655dae25e8b (patch) | |
| tree | d44c596ffdea4f9e452f670c903fdbea2bf53d26 /usr.bin/wall/wall.c | |
| parent | 1aef1ebaacaa06856436b47ba78a6c0dead132a1 (diff) | |
use err*() correct, and open file with egid; fyre@users.sourceforge.net
Diffstat (limited to 'usr.bin/wall/wall.c')
| -rw-r--r-- | usr.bin/wall/wall.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/usr.bin/wall/wall.c b/usr.bin/wall/wall.c index 7fa8a4dadcf..e657d1b93e6 100644 --- a/usr.bin/wall/wall.c +++ b/usr.bin/wall/wall.c @@ -1,4 +1,4 @@ -/* $OpenBSD: wall.c,v 1.12 1999/05/30 08:21:15 deraadt Exp $ */ +/* $OpenBSD: wall.c,v 1.13 2000/09/07 17:23:26 deraadt Exp $ */ /* $NetBSD: wall.c,v 1.6 1994/11/17 07:17:58 jtc Exp $ */ /* @@ -44,7 +44,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)wall.c 8.2 (Berkeley) 11/16/93"; #endif -static char rcsid[] = "$OpenBSD: wall.c,v 1.12 1999/05/30 08:21:15 deraadt Exp $"; +static char rcsid[] = "$OpenBSD: wall.c,v 1.13 2000/09/07 17:23:26 deraadt Exp $"; #endif /* not lint */ /* @@ -134,7 +134,7 @@ usage: makemsg(*argv); if (!(fp = fopen(_PATH_UTMP, "r"))) - errx(1, "cannot read %s.\n", _PATH_UTMP); + errx(1, "cannot read %s.", _PATH_UTMP); iov.iov_base = mbuf; iov.iov_len = mbufsize; /* NOSTRICT */ @@ -169,7 +169,7 @@ usage: strncpy(line, utmp.ut_line, sizeof(utmp.ut_line)); line[sizeof(utmp.ut_line)] = '\0'; if ((p = ttymsg(&iov, 1, line, 60*5)) != NULL) - warnx("%s\n", p); + warnx("%s", p); } exit(0); } @@ -191,7 +191,7 @@ makemsg(fname) snprintf(tmpname, sizeof(tmpname), "%s/wall.XXXXXX", _PATH_TMP); if ((fd = mkstemp(tmpname)) == -1 || !(fp = fdopen(fd, "r+"))) - errx(1, "can't open temporary file.\n"); + errx(1, "can't open temporary file."); (void)unlink(tmpname); if (!nobanner) { @@ -221,8 +221,14 @@ makemsg(fname) } (void)fprintf(fp, "%79s\r\n", " "); - if (fname && !(freopen(fname, "r", stdin))) - errx(1, "can't read %s.\n", fname); + if (fname) { + gid_t egid = getegid(); + + setegid(getgid()); + if (freopen(fname, "r", stdin) == NULL) + errx(1, "can't read %s.", fname); + setegid(egid); + } while (fgets(lbuf, sizeof(lbuf), stdin)) for (cnt = 0, p = lbuf; (ch = *p) != '\0'; ++p, ++cnt) { vis(tmpbuf, ch, VIS_SAFE|VIS_NOSLASH, p[1]); @@ -244,11 +250,11 @@ makemsg(fname) rewind(fp); if (fstat(fd, &sbuf)) - errx(1, "can't stat temporary file.\n"); + errx(1, "can't stat temporary file."); mbufsize = sbuf.st_size; if (!(mbuf = malloc((u_int)mbufsize))) - errx(1, "out of memory.\n"); + errx(1, "out of memory."); if (fread(mbuf, sizeof(*mbuf), mbufsize, fp) != mbufsize) - errx(1, "can't read temporary file.\n"); + errx(1, "can't read temporary file."); (void)close(fd); } |