File: [local] / src / usr.bin / tip / Attic / cmds.c (download)
Revision 1.28, Tue Oct 27 23:59:44 2009 UTC (14 years, 7 months ago) by deraadt
Branch: MAIN
Changes since 1.27: +1 -8 lines
rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms
|
/* $OpenBSD: cmds.c,v 1.28 2009/10/27 23:59:44 deraadt 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.
*/
#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);
}
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