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BSD 4_3_Net_2 release
[unix-history] / usr / src / usr.bin / pascal / pc / pc.c
/*-
* Copyright (c) 1990 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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
char copyright[] =
"@(#) Copyright (c) 1990 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)pc.c 5.6 (Berkeley) 2/6/91";
#endif /* not lint */
#include <sys/param.h>
#include <sys/signal.h>
#include <sys/wait.h>
#include <stdio.h>
#include "pathnames.h"
/*
* Pc - front end for Pascal compiler.
*/
char *pc0 = _PATH_PC0;
char *pc1 = _PATH_PC1;
char *pc2 = _PATH_PC2;
char *c2 = _PATH_C2;
char *pc3 = _PATH_PC3;
char *ld = _PATH_LD;
char *as = _PATH_AS;
char *lpc = "-lpc";
char *crt0 = _PATH_CRT0;
char *mcrt0 = _PATH_MCRT0;
char *gcrt0 = _PATH_GCRT0;
char *mktemp();
char *tmpdir = _PATH_TMP;
char tmp0[MAXPATHLEN], tmp1[MAXPATHLEN];
char *tname[2];
char *tfile[2];
char *setsuf(), *savestr();
int Jflag, Sflag, Oflag, Tlflag, cflag, gflag, pflag, wflag, tflag;
int debug;
#define NARGS 512
int ldargx = 3;
int pc0argx = 3;
char *pc0args[NARGS] = { "pc0", "-o", "XXX" };
char *pc1args[3] = { "pc1", 0, };
char *pc2args[2] = { "pc2", 0 };
char *c2args[4] = { "c2", 0, 0, 0 };
int pc3argx = 1;
#define pc3args pc0args
#define ldargs pc0args
/* char *pc3args[NARGS] = { "pc3", 0 }; */
/* char *ldargs[NARGS] = { "ld", "-X", _PATH_CRT0, 0, }; */
/* as -J -t tmpdir -o objfile srcfile \0 */
int asargx;
char *asargs[8] = { "as", 0, };
char *mesg[] = {
0,
"Hangup",
"Interrupt",
"Quit",
"Illegal instruction",
"Trace/BPT trap",
"IOT trap",
"EMT trap",
"Floating exception",
"Killed",
"Bus error",
"Segmentation fault",
"Bad system call",
"Broken pipe",
"Alarm clock",
"Terminated",
"Signal 16",
"Stopped (signal)",
"Stopped",
"Continued",
"Child exited",
"Stopped (tty input)",
"Stopped (tty output)",
"Tty input interrupt",
"Cputime limit exceeded",
"Filesize limit exceeded",
"Signal 26",
"Signal 27",
"Signal 28",
"Signal 29",
"Signal 30",
"Signal 31",
"Signal 32"
};
/*
* If the number of .p arguments (np) is 1, and the number of .o arguments
* (nxo) is 0, and we successfully create an ``a.out'', then we remove
* the one .ps .o file (onepso).
*/
int np, nxo;
char *onepso;
int errs;
int onintr();
main(argc, argv)
int argc;
char **argv;
{
register char *argp;
register int i;
int savargx;
char *t, c;
int j;
argc--, argv++;
if (argc == 0) {
execl(_PATH_CAT, "cat", _PATH_HOWPC);
exit(1);
}
if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
signal(SIGINT, onintr);
signal(SIGTERM, onintr);
}
for (i = 0; i < argc; i++) {
argp = argv[i];
if (argp[0] != '-')
continue;
switch (argp[1]) {
case 'd':
if (argp[2] == 0)
debug++;
continue;
case 'i':
pc0args[pc0argx++] = "-i";
while (i+1 < argc && argv[i+1][0] != '-' &&
getsuf(argv[i+1]) != 'p') {
pc0args[pc0argx++] = argv[i+1];
i++;
}
if (i+1 == argc) {
fprintf(stderr, "pc: bad -i construction\n");
exit(1);
}
continue;
case 'o':
i++;
if (i == argc) {
fprintf(stderr, "pc: -o must specify file\n");
exit(1);
}
c = getsuf(argv[i]);
if (c == 'o' || c == 'p' || c == 'c') {
fprintf(stderr, "pc: -o would overwrite %s\n",
argv[i]);
exit(1);
}
continue;
case 't':
i++;
if (i == argc) {
fprintf(stderr, "pc: -t but no directory\n");
exit(1);
}
if (argp[2] != '\0') {
fprintf(stderr, "pc: bad -t option\n");
exit(1);
}
tmpdir = argv[i];
if (tmpdir[0] == '-') {
fprintf(stderr, "pc: bad -t option\n");
exit(1);
}
tflag = 1;
continue;
case 'O':
Oflag = 1;
continue;
case 'S':
Sflag = 1;
continue;
case 'J':
Jflag = 1;
continue;
case 'T':
switch (argp[2]) {
case '0':
pc0 = _PATH_DPC0;
if (argp[3] != '\0') {
pc0 = &argp[3];
}
continue;
case '1':
pc1 = _PATH_DPC1;
if (argp[3] != '\0') {
pc1 = &argp[3];
}
continue;
case '2':
pc2 = _PATH_DPC2;
if (argp[3] != '\0') {
pc2 = &argp[3];
}
continue;
case '3':
pc3 = _PATH_DPC3;
if (argp[3] != '\0') {
pc3 = &argp[3];
}
continue;
case 'l':
Tlflag = 1;
lpc = _PATH_DLPC;
if (argp[3] != '\0') {
lpc = &argp[3];
}
continue;
}
continue;
case 'c':
cflag = 1;
continue;
case 'l':
if (argp[2])
continue;
/* fall into ... */
case 'b':
case 's':
case 'z':
case 'C':
pc0args[pc0argx++] = argp;
continue;
case 'w':
wflag = 1;
pc0args[pc0argx++] = argp;
continue;
case 'g':
gflag = 1;
pc0args[pc0argx++] = argp;
continue;
case 'p':
if (argp[2] == 'g')
crt0 = gcrt0;
else
crt0 = mcrt0;
if (!Tlflag)
lpc = "-lpc_p";
pflag = 1;
continue;
}
}
if (gflag && Oflag) {
fprintf(stderr, "pc: warning: -g overrides -O\n");
Oflag = 0;
}
sprintf(tmp0, "%s/%s", tmpdir, "p0XXXXXX");
tname[0] = mktemp(tmp0);
sprintf(tmp1, "%s/%s", tmpdir, "p1XXXXXX");
tname[1] = mktemp(tmp1);
savargx = pc0argx;
for (i = 0; i < argc; i++) {
argp = argv[i];
if (argp[0] == '-')
continue;
if (suffix(argp) == 's') {
asargx = 1;
if (Jflag)
asargs[asargx++] = "-J";
# if defined(vax) || defined(tahoe)
if (tflag) {
asargs[asargx++] = "-t";
asargs[asargx++] = tmpdir;
}
# endif vax || tahoe
asargs[asargx++] = argp;
asargs[asargx++] = "-o";
tfile[1] = setsuf(argp, 'o');
asargs[asargx++] = tfile[1];
asargs[asargx] = 0;
if (dosys(as, asargs, 0, 0))
continue;
tfile[1] = 0;
continue;
}
if (suffix(argp) != 'p')
continue;
tfile[0] = tname[0];
pc0args[2] = tfile[0];
pc0argx = savargx;
if (pflag)
pc0args[pc0argx++] = "-p";
if (Jflag)
pc0args[pc0argx++] = "-J";
pc0args[pc0argx++] = argp;
pc0args[pc0argx] = 0;
if (dosys(pc0, pc0args, 0, 0))
continue;
pc1args[1] = tfile[0];
tfile[1] = tname[1];
if (dosys(pc1, pc1args, 0, tfile[1]))
continue;
unlink(tfile[0]);
tfile[0] = tname[0];
if (Oflag) {
if (dosys(c2, c2args, tfile[1], tfile[0]))
continue;
unlink(tfile[1]);
tfile[1] = tfile[0];
tfile[0] = tname[1];
}
if (Sflag)
tfile[0] = setsuf(argp, 's');
if (dosys(pc2, pc2args, tfile[1], tfile[0]))
continue;
unlink(tfile[1]);
tfile[1] = 0;
if (Sflag) {
tfile[0] = 0;
continue;
}
asargx = 1;
if (Jflag)
asargs[asargx++] = "-J";
# if defined(vax) || defined(tahoe)
if (tflag) {
asargs[asargx++] = "-t";
asargs[asargx++] = tmpdir;
}
# endif vax || tahoe
asargs[asargx++] = tfile[0];
asargs[asargx++] = "-o";
tfile[1] = setsuf(argp, 'o');
asargs[asargx++] = tfile[1];
asargs[asargx] = 0;
if (dosys(as, asargs, 0, 0))
continue;
tfile[1] = 0;
removetemps();
}
if (errs || cflag || Sflag)
done();
/* char *pc3args[NARGS] = { "pc3", 0 }; */
pc3args[0] = "pc3";
if (wflag)
pc3args[pc3argx++] = "-w";
pc3args[pc3argx++] = _PATH_PCEXTERN;
for (i = 0; i < argc; i++) {
argp = argv[i];
if (!strcmp(argp, "-o"))
i++;
if (argp[0] == '-')
continue;
switch (getsuf(argp)) {
case 'o':
pc3args[pc3argx++] = argp;
nxo++;
continue;
case 's':
case 'p':
onepso = pc3args[pc3argx++] =
savestr(setsuf(argp, 'o'));
np++;
continue;
}
}
pc3args[pc3argx] = 0;
if (dosys(pc3, pc3args, 0, 0) > 1)
done();
errs = 0;
/* char *ldargs[NARGS] = { "ld", "-X", _PATH_CRT0, 0, }; */
ldargs[0] = "ld";
ldargs[1] = "-X";
ldargs[2] = crt0;
for (i = 0; i < argc; i++) {
argp = argv[i];
if (argp[0] != '-') {
switch (getsuf(argp)) {
case 'p':
case 's':
ldargs[ldargx] = savestr(setsuf(argp, 'o'));
break;
default:
ldargs[ldargx] = argp;
break;
}
if (getsuf(ldargs[ldargx]) == 'o')
for (j = 0; j < ldargx; j++)
if (!strcmp(ldargs[j], ldargs[ldargx]))
goto duplicate;
ldargx++;
duplicate:
continue;
}
switch (argp[1]) {
case 'i':
while (i+1 < argc && argv[i+1][0] != '-' &&
getsuf(argv[i+1]) != 'p')
i++;
continue;
case 'd':
if (argp[2] == 0)
continue;
ldargs[ldargx++] = argp;
continue;
case 'o':
ldargs[ldargx++] = argp;
i++;
ldargs[ldargx++] = argv[i];
continue;
case 'l':
if (argp[2])
ldargs[ldargx++] = argp;
continue;
case 't':
i++;
continue;
case 'c':
case 'g':
case 'w':
case 'p':
case 'S':
case 'J':
case 'T':
case 'O':
case 'C':
case 'b':
case 's':
case 'z':
continue;
default:
ldargs[ldargx++] = argp;
continue;
}
}
ldargs[ldargx++] = lpc;
if (gflag)
ldargs[ldargx++] = "-lg";
if (pflag) {
ldargs[ldargx++] = "-lm_p";
ldargs[ldargx++] = "-lc_p";
} else {
ldargs[ldargx++] = "-lm";
ldargs[ldargx++] = "-lc";
}
ldargs[ldargx] = 0;
if (dosys(ld, ldargs, 0, 0)==0 && np == 1 && nxo == 0)
unlink(onepso);
done();
}
dosys(cmd, argv, in, out)
char *cmd, **argv, *in, *out;
{
union wait status;
int pid;
if (debug) {
int i;
printf("%s:", cmd);
for (i = 0; argv[i]; i++)
printf(" %s", argv[i]);
if (in)
printf(" <%s", in);
if (out)
printf(" >%s", out);
printf("\n");
}
/*
* warning: vfork doesn't work here, because the call to signal()
* done by the child process destroys the parent's SIGINT handler.
*/
pid = fork();
if (pid < 0) {
fprintf(stderr, "pc: No more processes\n");
done();
}
if (pid == 0) {
if (in) {
close(0);
if (open(in, 0) != 0) {
perror(in);
exit(1);
}
}
if (out) {
close(1);
unlink(out);
if (creat(out, 0666) != 1) {
perror(out);
exit(1);
}
}
signal(SIGINT, SIG_DFL);
execv(cmd, argv);
perror(cmd);
exit(1);
}
while (wait(&status) != pid)
;
if (WIFSIGNALED(status)) {
if (status.w_termsig != SIGINT) {
fprintf(stderr, "%s: %s", cmd, mesg[status.w_termsig]);
if (status.w_coredump)
fprintf(stderr, " (core dumped)");
fprintf(stderr, "\n");
}
errs = 100;
done();
/*NOTREACHED*/
}
if (status.w_retcode) {
errs = 1;
removetemps();
}
return (status.w_retcode);
}
done()
{
removetemps();
exit(errs);
}
removetemps()
{
if (tfile[0])
unlink(tfile[0]);
if (tfile[1])
unlink(tfile[1]);
}
onintr()
{
errs = 1;
done();
}
getsuf(cp)
char *cp;
{
if (*cp == 0)
return;
while (cp[1])
cp++;
if (cp[-1] != '.')
return (0);
return (*cp);
}
char *
setsuf(as, ch)
char *as;
int ch;
{
register char *s, *s1;
s = s1 = savestr(as);
while (*s)
if (*s++ == '/')
s1 = s;
s[-1] = ch;
return (s1);
}
#define NSAVETAB 512
char *savetab;
int saveleft;
char *
savestr(cp)
register char *cp;
{
register int len;
len = strlen(cp) + 1;
if (len > saveleft) {
saveleft = NSAVETAB;
if (len > saveleft)
saveleft = len;
savetab = (char *)malloc(saveleft);
if (savetab == 0) {
fprintf(stderr, "ran out of memory (savestr)\n");
exit(1);
}
}
strncpy(savetab, cp, len);
cp = savetab;
savetab += len;
return (cp);
}
suffix(cp)
char *cp;
{
if (cp[0] == 0 || cp[1] == 0)
return (0);
while (cp[1])
cp++;
if (cp[-1] == '.')
return (*cp);
return (0);
}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.