OpenBSD-4.6/usr.bin/tip/cmds.c
/* $OpenBSD: cmds.c,v 1.27 2007/05/15 19:42:05 moritz Exp $ */
/* $NetBSD: cmds.c,v 1.7 1997/02/11 09:24:03 mrg Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)cmds.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] = "$OpenBSD: cmds.c,v 1.27 2007/05/15 19:42:05 moritz Exp $";
#endif /* not lint */
#include "tip.h"
#include "pathnames.h"
#include <vis.h>
/*
* tip
*
* miscellaneous commands
*/
int quant[] = { 60, 60, 24 };
char null = '\0';
char *sep[] = { "second", "minute", "hour" };
static char *argv[10]; /* argument vector for take and put */
static void transfer(char *, int, char *);
static void stopsnd(int); /* SIGINT handler during file transfers */
static void intcopy(int); /* interrupt routine for file transfers */
static void transmit(FILE *, char *, char *);
static void send(int);
static void execute(char *);
static int args(char *, char **, int);
static void prtime(char *, time_t);
static void tandem(char *);
static void hardwareflow(char *);
void linedisc(char *);
static int anyof(char *, char *);
/*
* FTP - remote ==> local
* get a file from the remote host
*/
void
getfl(int c)
{
char buf[256], *cp;
putchar(c);
/*
* get the UNIX receiving file's name
*/
if (prompt("Local file name? ", copyname, sizeof(copyname)))
return;
cp = expand(copyname);
if ((sfd = creat(cp, 0666)) < 0) {
printf("\r\n%s: cannot creat\r\n", copyname);
return;
}
/*
* collect parameters
*/
if (prompt("List command for remote system? ", buf, sizeof(buf))) {
unlink(copyname);
return;
}
transfer(buf, sfd, value(EOFREAD));
}
/*
* Cu-like take command
*/
void
cu_take(int c)
{
int fd, argc;
char line[BUFSIZ], *cp;
if (prompt("[take] ", copyname, sizeof(copyname)))
return;
if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 ||
argc > 2) {
printf("usage: <take> from [to]\r\n");
return;
}
if (argc == 1)
argv[1] = argv[0];
cp = expand(argv[1]);
if ((fd = creat(cp, 0666)) < 0) {
printf("\r\n%s: cannot create\r\n", argv[1]);
return;
}
(void)snprintf(line, sizeof(line), "cat %s;echo ''|tr '\\012' '\\01'", argv[0]);
transfer(line, fd, "\01");
}
static jmp_buf intbuf;
/*
* Bulk transfer routine --
* used by getfl(), cu_take(), and pipefile()
*/
static void
transfer(char *buf, int fd, char *eofchars)
{
int ct, eof;
char c, buffer[BUFSIZ];
char *p = buffer;
size_t cnt;
time_t start;
sig_t f;
char r;
if (number(value(FRAMESIZE)) > BUFSIZ || number(value(FRAMESIZE)) < 1) {
printf("framesize must be >= 1 and <= %d\r\n", BUFSIZ);
close(fd);
return;
}
parwrite(FD, buf, size(buf));
quit = 0;
kill(tipout_pid, SIGIOT);
read(repdes[0], (char *)&ccc, 1); /* Wait until read process stops */
/*
* finish command
*/
r = '\r';
parwrite(FD, &r, 1);
do
read(FD, &c, 1);
while ((c&STRIP_PAR) != '\n');
tcsetattr(0, TCSAFLUSH, &defchars);
(void) setjmp(intbuf);
f = signal(SIGINT, intcopy);
start = time(0);
for (ct = 0; !quit;) {
eof = read(FD, &c, 1) <= 0;
c &= STRIP_PAR;
if (quit)
continue;
if (eof || any(c, eofchars))
break;
if (c == 0)
continue; /* ignore nulls */
if (c == '\r')
continue;
*p++ = c;
if (c == '\n' && boolean(value(VERBOSE)))
printf("\r%d", ++ct);
if ((cnt = (p-buffer)) == number(value(FRAMESIZE))) {
if (write(fd, buffer, cnt) != cnt) {
printf("\r\nwrite error\r\n");
quit = 1;
}
p = buffer;
}
}
if ((cnt = (p-buffer)))
if (write(fd, buffer, cnt) != cnt)
printf("\r\nwrite error\r\n");
if (boolean(value(VERBOSE)))
prtime(" lines transferred in ", time(0)-start);
tcsetattr(0, TCSAFLUSH, &term);
write(fildes[1], (char *)&ccc, 1);
signal(SIGINT, f);
close(fd);
}
/*
* FTP - remote ==> local process
* send remote input to local process via pipe
*/
/*ARGSUSED*/
void
pipefile(int c)
{
int pdes[2];
char buf[256];
int status, p;
pid_t cpid;
if (prompt("Local command? ", buf, sizeof(buf)))
return;
if (pipe(pdes)) {
printf("can't establish pipe\r\n");
return;
}
if ((cpid = fork()) < 0) {
printf("can't fork!\r\n");
return;
} else if (cpid) {
if (prompt("List command for remote system? ", buf, sizeof(buf))) {
close(pdes[0]), close(pdes[1]);
kill (cpid, SIGKILL);
} else {
close(pdes[0]);
signal(SIGPIPE, intcopy);
transfer(buf, pdes[1], value(EOFREAD));
signal(SIGPIPE, SIG_DFL);
while ((p = wait(&status)) > 0 && p != cpid)
;
}
} else {
int f;
dup2(pdes[0], 0);
close(pdes[0]);
for (f = 3; f < 20; f++)
close(f);
execute(buf);
printf("can't execl!\r\n");
exit(0);
}
}
/*
* Interrupt service routine for FTP
*/
/*ARGSUSED*/
static void
stopsnd(int signo)
{
stop = 1;
signal(SIGINT, SIG_IGN);
}
/*
* FTP - local ==> remote
* send local file to remote host
* terminate transmission with pseudo EOF sequence
*/
void
sendfile(int c)
{
FILE *fp;
char *fnamex;
putchar(c);
/*
* get file name
*/
if (prompt("Local file name? ", fname, sizeof(fname)))
return;
/*
* look up file
*/
fnamex = expand(fname);
if ((fp = fopen(fnamex, "r")) == NULL) {
printf("%s: cannot open\r\n", fname);
return;
}
transmit(fp, value(EOFWRITE), NULL);
if (!boolean(value(ECHOCHECK)))
tcdrain(FD);
}
/*
* Bulk transfer routine to remote host --
* used by sendfile() and cu_put()
*/
static void
transmit(FILE *fp, char *eofchars, char *command)
{
char *pc, lastc;
int c, ccount, lcount;
time_t start_t, stop_t;
sig_t f;
kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
stop = 0;
f = signal(SIGINT, stopsnd);
tcsetattr(0, TCSAFLUSH, &defchars);
read(repdes[0], (char *)&ccc, 1);
if (command != NULL) {
for (pc = command; *pc; pc++)
send(*pc);
if (boolean(value(ECHOCHECK)))
read(FD, (char *)&c, 1); /* trailing \n */
else {
tcdrain(FD);
sleep(5); /* wait for remote stty to take effect */
}
}
lcount = 0;
lastc = '\0';
start_t = time(0);
while (1) {
ccount = 0;
do {
c = getc(fp);
if (stop)
goto out;
if (c == EOF)
goto out;
if (c == 0177 && !boolean(value(RAWFTP)))
continue;
lastc = c;
if (c < 040) {
if (c == '\n') {
if (!boolean(value(RAWFTP)))
c = '\r';
} else if (c == '\t') {
if (!boolean(value(RAWFTP))) {
if (boolean(value(TABEXPAND))) {
send(' ');
while ((++ccount % 8) != 0)
send(' ');
continue;
}
}
} else
if (!boolean(value(RAWFTP)))
continue;
}
send(c);
} while (c != '\r' && !boolean(value(RAWFTP)));
if (boolean(value(VERBOSE)))
printf("\r%d", ++lcount);
if (boolean(value(ECHOCHECK))) {
timedout = 0;
alarm((unsigned int)lvalue(ETIMEOUT));
do { /* wait for prompt */
read(FD, (char *)&c, 1);
if (timedout || stop) {
if (timedout)
printf("\r\ntimed out at eol\r\n");
alarm(0);
goto out;
}
} while ((c&STRIP_PAR) != character(value(PROMPT)));
alarm(0);
}
}
out:
if (lastc != '\n' && !boolean(value(RAWFTP)))
send('\r');
if (eofchars) {
for (pc = eofchars; *pc; pc++)
send(*pc);
}
stop_t = time(0);
fclose(fp);
signal(SIGINT, f);
if (boolean(value(VERBOSE))) {
if (boolean(value(RAWFTP)))
prtime(" chars transferred in ", stop_t-start_t);
else
prtime(" lines transferred in ", stop_t-start_t);
}
write(fildes[1], (char *)&ccc, 1);
tcsetattr(0, TCSAFLUSH, &term);
}
/*
* Cu-like put command
*/
/*ARGSUSED*/
void
cu_put(int c)
{
FILE *fp;
char line[BUFSIZ];
int argc;
char *copynamex;
if (prompt("[put] ", copyname, sizeof(copyname)))
return;
if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 ||
argc > 2) {
printf("usage: <put> from [to]\r\n");
return;
}
if (argc == 1)
argv[1] = argv[0];
copynamex = expand(argv[0]);
if ((fp = fopen(copynamex, "r")) == NULL) {
printf("%s: cannot open\r\n", copynamex);
return;
}
if (boolean(value(ECHOCHECK)))
(void)snprintf(line, sizeof(line), "cat>%s\r", argv[1]);
else
(void)snprintf(line, sizeof(line),
"stty -echo;cat>%s;stty echo\r", argv[1]);
transmit(fp, "\04", line);
}
/*
* FTP - send single character
* wait for echo & handle timeout
*/
static void
send(int c)
{
char cc;
int retry = 0;
cc = c;
parwrite(FD, &cc, 1);
if (number(value(CDELAY)) > 0 && c != '\r')
usleep(number(value(CDELAY)));
if (!boolean(value(ECHOCHECK))) {
if (number(value(LDELAY)) > 0 && c == '\r')
usleep(number(value(LDELAY)));
return;
}
tryagain:
timedout = 0;
alarm((unsigned int)lvalue(ETIMEOUT));
read(FD, &cc, 1);
alarm(0);
if (timedout) {
printf("\r\ntimeout error (%s)\r\n", ctrl(c));
if (retry++ > 3)
return;
parwrite(FD, &null, 1); /* poke it */
goto tryagain;
}
}
/*ARGSUSED*/
void
timeout(int signo)
{
signal(SIGALRM, timeout);
timedout = 1;
}
/*
* Stolen from consh() -- puts a remote file on the output of a local command.
* Identical to consh() except for where stdout goes.
*/
void
pipeout(int c)
{
char buf[256];
int status, p;
pid_t cpid;
time_t start = time(NULL);
putchar(c);
if (prompt("Local command? ", buf, sizeof(buf)))
return;
kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
tcsetattr(0, TCSAFLUSH, &defchars);
read(repdes[0], (char *)&ccc, 1);
/*
* Set up file descriptors in the child and
* let it go...
*/
if ((cpid = fork()) < 0)
printf("can't fork!\r\n");
else if (cpid) {
start = time(NULL);
while ((p = wait(&status)) > 0 && p != cpid)
;
} else {
int i;
dup2(FD, 1);
for (i = 3; i < 20; i++)
close(i);
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
execute(buf);
printf("can't find `%s'\r\n", buf);
exit(0);
}
if (boolean(value(VERBOSE)))
prtime("away for ", time(0)-start);
write(fildes[1], (char *)&ccc, 1);
tcsetattr(0, TCSAFLUSH, &term);
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
}
#ifdef CONNECT
/*
* Fork a program with:
* 0 <-> remote tty in
* 1 <-> remote tty out
* 2 <-> local tty stderr
*/
void
consh(int c)
{
char buf[256];
int status, p;
pid_t cpid;
time_t start = time(NULL);
putchar(c);
if (prompt("Local command? ", buf, sizeof(buf)))
return;
kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
tcsetattr(0, TCSAFLUSH, &defchars);
read(repdes[0], (char *)&ccc, 1);
/*
* Set up file descriptors in the child and
* let it go...
*/
if ((cpid = fork()) < 0)
printf("can't fork!\r\n");
else if (cpid) {
start = time(0);
while ((p = wait(&status)) > 0 && p != cpid)
;
} else {
dup2(FD, 0);
dup2(3, 1);
closefrom(3);
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
execute(buf);
printf("can't find `%s'\r\n", buf);
exit(0);
}
if (boolean(value(VERBOSE)))
prtime("away for ", time(0)-start);
write(fildes[1], (char *)&ccc, 1);
tcsetattr(0, TCSAFLUSH, &term);
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
}
#endif
/*
* Escape to local shell
*/
/*ARGSUSED*/
void
shell(int c)
{
int status;
char *cp;
pid_t shpid;
printf("[sh]\r\n");
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
unraw();
if ((shpid = fork())) {
while (shpid != wait(&status));
raw();
printf("\r\n!\r\n");
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
return;
} else {
signal(SIGQUIT, SIG_DFL);
signal(SIGINT, SIG_DFL);
if ((cp = strrchr(value(SHELL), '/')) == NULL)
cp = value(SHELL);
else
cp++;
shell_uid();
execl(value(SHELL), cp, (char *)NULL);
printf("\r\ncan't execl!\r\n");
exit(1);
}
}
/*
* TIPIN portion of scripting
* initiate the conversation with TIPOUT
*/
void
setscript(void)
{
char c;
/*
* enable TIPOUT side for dialogue
*/
kill(tipout_pid, SIGEMT);
if (boolean(value(SCRIPT)))
write(fildes[1], value(RECORD), size(value(RECORD)));
write(fildes[1], "\n", 1);
/*
* wait for TIPOUT to finish
*/
read(repdes[0], &c, 1);
if (c == 'n')
printf("can't create %s\r\n", value(RECORD));
}
/*
* Change current working directory of
* local portion of tip
*/
/*ARGSUSED*/
void
chdirectory(int c)
{
char dirname[PATH_MAX];
char *cp = dirname;
if (prompt("[cd] ", dirname, sizeof(dirname))) {
if (stoprompt)
return;
cp = value(HOME);
}
if (chdir(cp) < 0)
printf("%s: bad directory\r\n", cp);
printf("!\r\n");
}
void
tipabort(char *msg)
{
signal(SIGTERM, SIG_IGN);
kill(tipout_pid, SIGTERM);
disconnect(msg);
if (msg != NULL)
printf("\r\n%s", msg);
printf("\r\n[EOT]\r\n");
daemon_uid();
(void)uu_unlock(uucplock);
unraw();
exit(0);
}
/*ARGSUSED*/
void
finish(int c)
{
char *dismsg;
if ((dismsg = value(DISCONNECT)) != NULL) {
write(FD, dismsg, strlen(dismsg));
sleep(5);
}
tipabort(NULL);
}
/*ARGSUSED*/
static void
intcopy(int signo)
{
raw();
quit = 1;
longjmp(intbuf, 1);
}
static void
execute(char *s)
{
char *cp;
if ((cp = strrchr(value(SHELL), '/')) == NULL)
cp = value(SHELL);
else
cp++;
shell_uid();
execl(value(SHELL), cp, "-c", s, (char *)NULL);
}
static int
args(char *buf, char *a[], int num)
{
char *p = buf, *start;
char **parg = a;
int n = 0;
do {
while (*p && (*p == ' ' || *p == '\t'))
p++;
start = p;
if (*p)
*parg = p;
while (*p && (*p != ' ' && *p != '\t'))
p++;
if (p != start)
parg++, n++;
if (*p)
*p++ = '\0';
} while (*p && n < num);
return(n);
}
static void
prtime(char *s, time_t a)
{
int i;
int nums[3];
for (i = 0; i < 3; i++) {
nums[i] = (int)(a % quant[i]);
a /= quant[i];
}
printf("%s", s);
while (--i >= 0)
if (nums[i] || (i == 0 && nums[1] == 0 && nums[2] == 0))
printf("%d %s%c ", nums[i], sep[i],
nums[i] == 1 ? '\0' : 's');
printf("\r\n!\r\n");
}
/*ARGSUSED*/
void
variable(int c)
{
char buf[256];
if (prompt("[set] ", buf, sizeof(buf)))
return;
vlex(buf);
if (vtable[BEAUTIFY].v_access&CHANGED) {
vtable[BEAUTIFY].v_access &= ~CHANGED;
kill(tipout_pid, SIGSYS);
}
if (vtable[SCRIPT].v_access&CHANGED) {
vtable[SCRIPT].v_access &= ~CHANGED;
setscript();
/*
* So that "set record=blah script" doesn't
* cause two transactions to occur.
*/
if (vtable[RECORD].v_access&CHANGED)
vtable[RECORD].v_access &= ~CHANGED;
}
if (vtable[RECORD].v_access&CHANGED) {
vtable[RECORD].v_access &= ~CHANGED;
if (boolean(value(SCRIPT)))
setscript();
}
if (vtable[TAND].v_access&CHANGED) {
vtable[TAND].v_access &= ~CHANGED;
if (boolean(value(TAND)))
tandem("on");
else
tandem("off");
}
if (vtable[LECHO].v_access&CHANGED) {
vtable[LECHO].v_access &= ~CHANGED;
HD = boolean(value(LECHO));
}
if (vtable[PARITY].v_access&CHANGED) {
vtable[PARITY].v_access &= ~CHANGED;
setparity(NULL);
}
if (vtable[HARDWAREFLOW].v_access&CHANGED) {
vtable[HARDWAREFLOW].v_access &= ~CHANGED;
if (boolean(value(HARDWAREFLOW)))
hardwareflow("on");
else
hardwareflow("off");
}
if (vtable[LINEDISC].v_access&CHANGED) {
vtable[LINEDISC].v_access &= ~CHANGED;
linedisc(NULL);
}
}
/*ARGSUSED*/
void
listvariables(int c)
{
value_t *p;
char buf[BUFSIZ];
puts("v\r");
for (p = vtable; p->v_name; p++) {
fputs(p->v_name, stdout);
switch (p->v_type&TMASK) {
case STRING:
if (p->v_value) {
strnvis(buf, p->v_value, sizeof(buf),
VIS_WHITE|VIS_OCTAL);
printf(" %s", buf);
}
putchar('\r');
putchar('\n');
break;
case NUMBER:
printf(" %ld\r\n", number(p->v_value));
break;
case BOOL:
printf(" %s\r\n",
!boolean(p->v_value) ? "false" : "true");
break;
case CHAR:
vis(buf, character(p->v_value), VIS_WHITE|VIS_OCTAL, 0);
printf(" %s\r\n", buf);
break;
}
}
}
/*
* Turn tandem mode on or off for remote tty.
*/
static void
tandem(char *option)
{
struct termios rmtty;
tcgetattr(FD, &rmtty);
if (strcmp(option, "on") == 0) {
rmtty.c_iflag |= IXOFF;
term.c_iflag |= IXOFF;
} else {
rmtty.c_iflag &= ~IXOFF;
term.c_iflag &= ~IXOFF;
}
tcsetattr(FD, TCSADRAIN, &rmtty);
tcsetattr(0, TCSADRAIN, &term);
}
/*
* Turn hardware flow control on or off for remote tty.
*/
static void
hardwareflow(char *option)
{
struct termios rmtty;
tcgetattr(FD, &rmtty);
if (strcmp(option, "on") == 0)
rmtty.c_iflag |= CRTSCTS;
else
rmtty.c_iflag &= ~CRTSCTS;
tcsetattr(FD, TCSADRAIN, &rmtty);
}
/*
* Change line discipline to the specified one.
*/
void
linedisc(char *option)
{
int ld = (int)value(LINEDISC);
ioctl(FD, TIOCSETD, &ld);
}
/*
* Send a break.
*/
/*ARGSUSED*/
void
genbrk(int c)
{
ioctl(FD, TIOCSBRK, NULL);
sleep(1);
ioctl(FD, TIOCCBRK, NULL);
}
/*
* Suspend tip
*/
void
suspend(int c)
{
unraw();
kill(c == CTRL('y') ? getpid() : 0, SIGTSTP);
raw();
}
/*
* expand a file name if it includes shell meta characters
*/
char *
expand(char name[])
{
static char xname[BUFSIZ];
char cmdbuf[BUFSIZ];
int l;
char *cp, *Shell;
int s, pivec[2];
pid_t pid;
if (!anyof(name, "~{[*?$`'\"\\"))
return(name);
/* sigint = signal(SIGINT, SIG_IGN); */
if (pipe(pivec) < 0) {
perror("pipe");
/* signal(SIGINT, sigint) */
return(name);
}
(void)snprintf(cmdbuf, sizeof(cmdbuf), "echo %s", name);
if ((pid = vfork()) == 0) {
Shell = value(SHELL);
if (Shell == NULL)
Shell = _PATH_BSHELL;
close(pivec[0]);
close(1);
dup(pivec[1]);
close(pivec[1]);
close(2);
shell_uid();
execl(Shell, Shell, "-c", cmdbuf, (char *)NULL);
_exit(1);
}
if (pid == -1) {
perror("fork");
close(pivec[0]);
close(pivec[1]);
return(NULL);
}
close(pivec[1]);
l = read(pivec[0], xname, BUFSIZ);
close(pivec[0]);
while (wait(&s) != pid);
;
s &= 0377;
if (s != 0 && s != SIGPIPE) {
fprintf(stderr, "\"Echo\" failed\n");
return(NULL);
}
if (l < 0) {
perror("read");
return(NULL);
}
if (l == 0) {
fprintf(stderr, "\"%s\": No match\n", name);
return(NULL);
}
if (l == BUFSIZ) {
fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name);
return(NULL);
}
xname[l] = 0;
for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--)
;
*++cp = '\0';
return(xname);
}
/*
* Are any of the characters in the two strings the same?
*/
static int
anyof(char *s1, char *s2)
{
int c;
while ((c = *s1++))
if (any(c, s2))
return(1);
return(0);
}