- use snprintf
- be safe with buffers (change prompt() to take a size_t len arg for this)
This commit is contained in:
mrg 1998-07-12 09:59:29 +00:00
parent 97eafd5059
commit 923d7551ba
8 changed files with 51 additions and 35 deletions

View File

@ -1,4 +1,4 @@
/* $NetBSD: acu.c,v 1.6 1998/06/30 23:42:08 thorpej Exp $ */
/* $NetBSD: acu.c,v 1.7 1998/07/12 09:59:29 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)acu.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: acu.c,v 1.6 1998/06/30 23:42:08 thorpej Exp $");
__RCSID("$NetBSD: acu.c,v 1.7 1998/07/12 09:59:29 mrg Exp $");
#endif /* not lint */
#include "tip.h"
@ -176,6 +176,7 @@ void
disconnect(reason)
char *reason;
{
if (!conflag) {
logent(value(HOST), "", DV, "call terminated");
return;
@ -193,6 +194,7 @@ static void
acuabort(s)
int s;
{
signal(s, SIG_IGN);
longjmp(jmpbuf, 1);
}

View File

@ -1,4 +1,4 @@
/* $NetBSD: cmds.c,v 1.10 1998/06/30 23:42:08 thorpej Exp $ */
/* $NetBSD: cmds.c,v 1.11 1998/07/12 09:59:29 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)cmds.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: cmds.c,v 1.10 1998/06/30 23:42:08 thorpej Exp $");
__RCSID("$NetBSD: cmds.c,v 1.11 1998/07/12 09:59:29 mrg Exp $");
#endif /* not lint */
#include "tip.h"
@ -54,7 +54,7 @@ int quant[] = { 60, 60, 24 };
char null = '\0';
char *sep[] = { "second", "minute", "hour" };
static char *argv[10]; /* argument vector for take and put */
static char *argv[10]; /* argument vector for take and put */
int args __P((char *, char **));
int anyof __P((char *, char *));
@ -79,7 +79,7 @@ getfl(c)
/*
* get the UNIX receiving file's name
*/
if (prompt("Local file name? ", copyname))
if (prompt("Local file name? ", copyname, sizeof copyname))
return;
cp = expand(copyname);
if ((sfd = creat(cp, 0666)) < 0) {
@ -90,7 +90,8 @@ getfl(c)
/*
* collect parameters
*/
if (prompt("List command for remote system? ", buf)) {
if (prompt("List command for remote system? ", buf,
sizeof buf)) {
unlink(copyname);
return;
}
@ -107,7 +108,7 @@ cu_take(cc)
int fd, argc;
char line[BUFSIZ], *cp;
if (prompt("[take] ", copyname))
if (prompt("[take] ", copyname, sizeof copyname))
return;
if ((argc = args(copyname, argv)) < 1 || argc > 2) {
printf("usage: <take> from [to]\r\n");
@ -212,7 +213,7 @@ pipefile(dummy)
char buf[256];
int status, p;
if (prompt("Local command? ", buf))
if (prompt("Local command? ", buf, sizeof buf))
return;
if (pipe(pdes)) {
@ -224,7 +225,8 @@ pipefile(dummy)
printf("can't fork!\r\n");
return;
} else if (cpid) {
if (prompt("List command for remote system? ", buf)) {
if (prompt("List command for remote system? ", buf,
sizeof buf)) {
close(pdes[0]), close(pdes[1]);
kill (cpid, SIGKILL);
} else {
@ -276,7 +278,7 @@ sendfile(cc)
/*
* get file name
*/
if (prompt("Local file name? ", fname))
if (prompt("Local file name? ", fname, sizeof fname))
return;
/*
@ -404,7 +406,7 @@ cu_put(cc)
int argc;
char *copynamex;
if (prompt("[put] ", copyname))
if (prompt("[put] ", copyname, sizeof copyname))
return;
if ((argc = args(copyname, argv)) < 1 || argc > 2) {
printf("usage: <put> from [to]\r\n");
@ -466,6 +468,7 @@ void
alrmtimeout(dummy)
int dummy;
{
signal(SIGALRM, alrmtimeout);
timedout = 1;
}
@ -483,7 +486,7 @@ pipeout(c)
time_t start = 0;
putchar(c);
if (prompt("Local command? ", buf))
if (prompt("Local command? ", buf, sizeof buf))
return;
kill(pid, SIGIOT); /* put TIPOUT into a wait state */
signal(SIGINT, SIG_IGN);
@ -536,7 +539,7 @@ consh(c)
time_t start = 0;
putchar(c);
if (prompt("Local command? ", buf))
if (prompt("Local command? ", buf, sizeof buf))
return;
kill(pid, SIGIOT); /* put TIPOUT into a wait state */
signal(SIGINT, SIG_IGN);
@ -650,7 +653,7 @@ chdirectory(dummy)
char dirname[80];
char *cp = dirname;
if (prompt("[cd] ", dirname)) {
if (prompt("[cd] ", dirname, sizeof dirname)) {
if (stoprompt)
return;
cp = value(HOME);
@ -694,6 +697,7 @@ void
intcopy(dummy)
int dummy;
{
raw();
quit = 1;
longjmp(intbuf, 1);
@ -764,7 +768,7 @@ variable(dummy)
{
char buf[256];
if (prompt("[set] ", buf))
if (prompt("[set] ", buf, sizeof buf))
return;
vlex(buf);
if (vtable[BEAUTIFY].v_access&CHANGED) {

View File

@ -1,4 +1,4 @@
/* $NetBSD: hunt.c,v 1.8 1997/11/22 07:28:43 lukem Exp $ */
/* $NetBSD: hunt.c,v 1.9 1998/07/12 09:59:30 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)hunt.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: hunt.c,v 1.8 1997/11/22 07:28:43 lukem Exp $");
__RCSID("$NetBSD: hunt.c,v 1.9 1998/07/12 09:59:30 mrg Exp $");
#endif /* not lint */
#include "tip.h"
@ -52,6 +52,7 @@ void
dead(dummy)
int dummy;
{
deadfl = 1;
longjmp(deadline, 1);
}

View File

@ -1,4 +1,4 @@
/* $NetBSD: tip.c,v 1.20 1998/06/30 23:42:08 thorpej Exp $ */
/* $NetBSD: tip.c,v 1.21 1998/07/12 09:59:30 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
#if 0
static char sccsid[] = "@(#)tip.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: tip.c,v 1.20 1998/06/30 23:42:08 thorpej Exp $");
__RCSID("$NetBSD: tip.c,v 1.21 1998/07/12 09:59:30 mrg Exp $");
#endif /* not lint */
/*
@ -136,7 +136,8 @@ main(argc, argv)
(int)sizeof(PNbuf) - 1);
exit(1);
}
strncpy( PNbuf, system, sizeof PNbuf - 1 );
strncpy(PNbuf, system, sizeof PNbuf - 1);
PNbuf[sizeof PNbuf - 1] = '\0';
for (p = system; *p; p++)
*p = '\0';
PN = PNbuf;
@ -211,7 +212,7 @@ notnumber:
fcntl(FD, F_SETFL, fcarg & ~O_NONBLOCK) < 0)) {
printf("tip: can't clear O_NONBLOCK: %s", strerror (errno));
daemon_uid();
(void)uu_unlock (uucplock);
(void)uu_unlock(uucplock);
exit(1);
}
@ -284,6 +285,7 @@ static int uidswapped;
void
user_uid()
{
if (uidswapped == 0) {
seteuid(uid);
uidswapped = 1;
@ -303,6 +305,7 @@ daemon_uid()
void
shell_uid()
{
seteuid(uid);
}
@ -312,6 +315,7 @@ shell_uid()
void
raw()
{
tcsetattr(0, TCSADRAIN, &term);
}
@ -322,6 +326,7 @@ raw()
void
unraw()
{
tcsetattr(0, TCSADRAIN, &defterm);
}
@ -333,9 +338,10 @@ static jmp_buf promptbuf;
* normal erase and kill characters.
*/
int
prompt(s, p)
prompt(s, p, l)
char *s;
char *p;
size_t l;
{
int c;
char *b = p;
@ -351,7 +357,8 @@ prompt(s, p)
unraw();
printf("%s", s);
if (setjmp(promptbuf) == 0)
while ((c = getchar()) != -1 && (*p = c) != '\n')
while ((c = getchar()) != -1 && (*p = c) != '\n' &&
b + l > p)
p++;
*p = '\0';
@ -463,6 +470,7 @@ int
any(c, p)
char c, *p;
{
while (p && *p)
if (*p++ == c)
return (1);
@ -476,7 +484,7 @@ interp(s)
static char buf[256];
char *p = buf, c, *q;
while ((c = *s++) != 0) {
while ((c = *s++) != 0 && buf + sizeof buf - p > 2) {
for (q = "\nn\rr\tt\ff\033E\bb"; *q; q++)
if (*q++ == c) {
*p++ = '\\'; *p++ = *q;

View File

@ -1,4 +1,4 @@
/* $NetBSD: tip.h,v 1.10 1998/06/30 23:42:08 thorpej Exp $ */
/* $NetBSD: tip.h,v 1.11 1998/07/12 09:59:30 mrg Exp $ */
/*
* Copyright (c) 1989, 1993
@ -297,7 +297,7 @@ void logent __P((char *, char *, char *, char *));
void loginit __P((void));
void pipefile __P((char));
void pipeout __P((char));
int prompt __P((char *, char *));
int prompt __P((char *, char *, size_t));
void xpwrite __P((int, char *, int));
void raw __P((void));
void send __P((char));

View File

@ -1,4 +1,4 @@
/* $NetBSD: tipout.c,v 1.6 1997/11/22 07:28:48 lukem Exp $ */
/* $NetBSD: tipout.c,v 1.7 1998/07/12 09:59:30 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)tipout.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: tipout.c,v 1.6 1997/11/22 07:28:48 lukem Exp $");
__RCSID("$NetBSD: tipout.c,v 1.7 1998/07/12 09:59:30 mrg Exp $");
#endif /* not lint */
#include "tip.h"
@ -83,7 +83,7 @@ intEMT(dummy)
char reply;
read(fildes[0], &c, 1);
while (c != '\n') {
while (c != '\n' && line + sizeof line - pline > 0) {
*pline++ = c;
read(fildes[0], &c, 1);
}

View File

@ -1,4 +1,4 @@
/* $NetBSD: uucplock.c,v 1.9 1997/11/22 07:28:49 lukem Exp $ */
/* $NetBSD: uucplock.c,v 1.10 1998/07/12 09:59:30 mrg Exp $ */
/*
* Copyright (c) 1988, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)uucplock.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: uucplock.c,v 1.9 1997/11/22 07:28:49 lukem Exp $");
__RCSID("$NetBSD: uucplock.c,v 1.10 1998/07/12 09:59:30 mrg Exp $");
#endif /* not lint */
#include "pathnames.h"
@ -73,7 +73,7 @@ uu_lock(ttyname)
return(-1);
}
len = read(fd, text_pid, sizeof(text_pid)-1);
if(len<=0) {
if(len <= 0) {
perror(tbuf);
(void)close(fd);
fprintf(stderr, "Can't read lock file.\n");

View File

@ -1,4 +1,4 @@
/* $NetBSD: value.c,v 1.8 1997/11/23 04:03:05 mrg Exp $ */
/* $NetBSD: value.c,v 1.9 1998/07/12 09:59:30 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)value.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: value.c,v 1.8 1997/11/23 04:03:05 mrg Exp $");
__RCSID("$NetBSD: value.c,v 1.9 1998/07/12 09:59:30 mrg Exp $");
#endif /* not lint */
#include "tip.h"
@ -260,6 +260,7 @@ static int
vaccess(mode, rw)
unsigned mode, rw;
{
if (mode & (rw<<PUBLIC))
return (1);
if (mode & (rw<<PRIVATE))