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-rw-r--r--usr.bin/msgs/msgs.c863
1 files changed, 0 insertions, 863 deletions
diff --git a/usr.bin/msgs/msgs.c b/usr.bin/msgs/msgs.c
deleted file mode 100644
index 9a5311a..0000000
--- a/usr.bin/msgs/msgs.c
+++ /dev/null
@@ -1,863 +0,0 @@
-/*-
- * Copyright (c) 1980, 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. 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
-static char copyright[] =
-"@(#) Copyright (c) 1980, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static char sccsid[] = "@(#)msgs.c 8.1 (Berkeley) 6/6/93";
-#endif /* not lint */
-
-/*
- * msgs - a user bulletin board program
- *
- * usage:
- * msgs [fhlopq] [[-]number] to read messages
- * msgs -s to place messages
- * msgs -c [-days] to clean up the bulletin board
- *
- * prompt commands are:
- * y print message
- * n flush message, go to next message
- * q flush message, quit
- * p print message, turn on 'pipe thru more' mode
- * P print message, turn off 'pipe thru more' mode
- * - reprint last message
- * s[-][<num>] [<filename>] save message
- * m[-][<num>] mail with message in temp mbox
- * x exit without flushing this message
- * <num> print message number <num>
- */
-
-#define V7 /* will look for TERM in the environment */
-#define OBJECT /* will object to messages without Subjects */
-/* #define REJECT /* will reject messages without Subjects
- (OBJECT must be defined also) */
-/* #define UNBUFFERED /* use unbuffered output */
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <sys/stat.h>
-#include <ctype.h>
-#include <errno.h>
-#include <pwd.h>
-#include <setjmp.h>
-#include <sgtty.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-#include "pathnames.h"
-
-#define CMODE 0666 /* bounds file creation mode */
-#define NO 0
-#define YES 1
-#define SUPERUSER 0 /* superuser uid */
-#define DAEMON 1 /* daemon uid */
-#define NLINES 24 /* default number of lines/crt screen */
-#define NDAYS 21 /* default keep time for messages */
-#define DAYS *24*60*60 /* seconds/day */
-#define MSGSRC ".msgsrc" /* user's rc file */
-#define BOUNDS "bounds" /* message bounds file */
-#define NEXT "Next message? [yq]"
-#define MORE "More? [ynq]"
-#define NOMORE "(No more) [q] ?"
-
-typedef char bool;
-
-FILE *msgsrc;
-FILE *newmsg;
-char *sep = "-";
-char inbuf[BUFSIZ];
-char fname[128];
-char cmdbuf[128];
-char subj[128];
-char from[128];
-char date[128];
-char *ptr;
-char *in;
-bool local;
-bool ruptible;
-bool totty;
-bool seenfrom;
-bool seensubj;
-bool blankline;
-bool printing = NO;
-bool mailing = NO;
-bool quitit = NO;
-bool sending = NO;
-bool intrpflg = NO;
-int uid;
-int msg;
-int prevmsg;
-int lct;
-int nlines;
-int Lpp = 0;
-time_t t;
-time_t keep;
-struct sgttyb otty;
-
-char *mktemp();
-char *nxtfld();
-void onintr();
-void onsusp();
-
-/* option initialization */
-bool hdrs = NO;
-bool qopt = NO;
-bool hush = NO;
-bool send_msg = NO;
-bool locomode = NO;
-bool use_pager = NO;
-bool clean = NO;
-bool lastcmd = NO;
-jmp_buf tstpbuf;
-
-main(argc, argv)
-int argc; char *argv[];
-{
- bool newrc, already;
- int rcfirst = 0; /* first message to print (from .rc) */
- int rcback = 0; /* amount to back off of rcfirst */
- int firstmsg, nextmsg, lastmsg = 0;
- int blast = 0;
- FILE *bounds;
-
-#ifdef UNBUFFERED
- setbuf(stdout, NULL);
-#endif
-
- gtty(fileno(stdout), &otty);
- time(&t);
- setuid(uid = getuid());
- ruptible = (signal(SIGINT, SIG_IGN) == SIG_DFL);
- if (ruptible)
- signal(SIGINT, SIG_DFL);
-
- argc--, argv++;
- while (argc > 0) {
- if (isdigit(argv[0][0])) { /* starting message # */
- rcfirst = atoi(argv[0]);
- }
- else if (isdigit(argv[0][1])) { /* backward offset */
- rcback = atoi( &( argv[0][1] ) );
- }
- else {
- ptr = *argv;
- while (*ptr) switch (*ptr++) {
-
- case '-':
- break;
-
- case 'c':
- if (uid != SUPERUSER && uid != DAEMON) {
- fprintf(stderr, "Sorry\n");
- exit(1);
- }
- clean = YES;
- break;
-
- case 'f': /* silently */
- hush = YES;
- break;
-
- case 'h': /* headers only */
- hdrs = YES;
- break;
-
- case 'l': /* local msgs only */
- locomode = YES;
- break;
-
- case 'o': /* option to save last message */
- lastcmd = YES;
- break;
-
- case 'p': /* pipe thru 'more' during long msgs */
- use_pager = YES;
- break;
-
- case 'q': /* query only */
- qopt = YES;
- break;
-
- case 's': /* sending TO msgs */
- send_msg = YES;
- break;
-
- default:
- fprintf(stderr,
- "usage: msgs [fhlopq] [[-]number]\n");
- exit(1);
- }
- }
- argc--, argv++;
- }
-
- /*
- * determine current message bounds
- */
- sprintf(fname, "%s/%s", _PATH_MSGS, BOUNDS);
- bounds = fopen(fname, "r");
-
- if (bounds != NULL) {
- fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg);
- fclose(bounds);
- blast = lastmsg; /* save upper bound */
- }
-
- if (clean)
- keep = t - (rcback? rcback : NDAYS) DAYS;
-
- if (clean || bounds == NULL) { /* relocate message bounds */
- struct direct *dp;
- struct stat stbuf;
- bool seenany = NO;
- DIR *dirp;
-
- dirp = opendir(_PATH_MSGS);
- if (dirp == NULL) {
- perror(_PATH_MSGS);
- exit(errno);
- }
-
- firstmsg = 32767;
- lastmsg = 0;
-
- for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)){
- register char *cp = dp->d_name;
- register int i = 0;
-
- if (dp->d_ino == 0)
- continue;
- if (dp->d_namlen == 0)
- continue;
-
- if (clean)
- sprintf(inbuf, "%s/%s", _PATH_MSGS, cp);
-
- while (isdigit(*cp))
- i = i * 10 + *cp++ - '0';
- if (*cp)
- continue; /* not a message! */
-
- if (clean) {
- if (stat(inbuf, &stbuf) != 0)
- continue;
- if (stbuf.st_mtime < keep
- && stbuf.st_mode&S_IWRITE) {
- unlink(inbuf);
- continue;
- }
- }
-
- if (i > lastmsg)
- lastmsg = i;
- if (i < firstmsg)
- firstmsg = i;
- seenany = YES;
- }
- closedir(dirp);
-
- if (!seenany) {
- if (blast != 0) /* never lower the upper bound! */
- lastmsg = blast;
- firstmsg = lastmsg + 1;
- }
- else if (blast > lastmsg)
- lastmsg = blast;
-
- if (!send_msg) {
- bounds = fopen(fname, "w");
- if (bounds == NULL) {
- perror(fname);
- exit(errno);
- }
- chmod(fname, CMODE);
- fprintf(bounds, "%d %d\n", firstmsg, lastmsg);
- fclose(bounds);
- }
- }
-
- if (send_msg) {
- /*
- * Send mode - place msgs in _PATH_MSGS
- */
- bounds = fopen(fname, "w");
- if (bounds == NULL) {
- perror(fname);
- exit(errno);
- }
-
- nextmsg = lastmsg + 1;
- sprintf(fname, "%s/%d", _PATH_MSGS, nextmsg);
- newmsg = fopen(fname, "w");
- if (newmsg == NULL) {
- perror(fname);
- exit(errno);
- }
- chmod(fname, 0644);
-
- fprintf(bounds, "%d %d\n", firstmsg, nextmsg);
- fclose(bounds);
-
- sending = YES;
- if (ruptible)
- signal(SIGINT, onintr);
-
- if (isatty(fileno(stdin))) {
- ptr = getpwuid(uid)->pw_name;
- printf("Message %d:\nFrom %s %sSubject: ",
- nextmsg, ptr, ctime(&t));
- fflush(stdout);
- fgets(inbuf, sizeof inbuf, stdin);
- putchar('\n');
- fflush(stdout);
- fprintf(newmsg, "From %s %sSubject: %s\n",
- ptr, ctime(&t), inbuf);
- blankline = seensubj = YES;
- }
- else
- blankline = seensubj = NO;
- for (;;) {
- fgets(inbuf, sizeof inbuf, stdin);
- if (feof(stdin) || ferror(stdin))
- break;
- blankline = (blankline || (inbuf[0] == '\n'));
- seensubj = (seensubj || (!blankline && (strncmp(inbuf, "Subj", 4) == 0)));
- fputs(inbuf, newmsg);
- }
-#ifdef OBJECT
- if (!seensubj) {
- printf("NOTICE: Messages should have a Subject field!\n");
-#ifdef REJECT
- unlink(fname);
-#endif
- exit(1);
- }
-#endif
- exit(ferror(stdin));
- }
- if (clean)
- exit(0);
-
- /*
- * prepare to display messages
- */
- totty = (isatty(fileno(stdout)) != 0);
- use_pager = use_pager && totty;
-
- sprintf(fname, "%s/%s", getenv("HOME"), MSGSRC);
- msgsrc = fopen(fname, "r");
- if (msgsrc) {
- newrc = NO;
- fscanf(msgsrc, "%d\n", &nextmsg);
- fclose(msgsrc);
- if (nextmsg > lastmsg+1) {
- printf("Warning: bounds have been reset (%d, %d)\n",
- firstmsg, lastmsg);
- truncate(fname, (off_t)0);
- newrc = YES;
- }
- else if (!rcfirst)
- rcfirst = nextmsg - rcback;
- }
- else
- newrc = YES;
- msgsrc = fopen(fname, "r+");
- if (msgsrc == NULL)
- msgsrc = fopen(fname, "w");
- if (msgsrc == NULL) {
- perror(fname);
- exit(errno);
- }
- if (rcfirst) {
- if (rcfirst > lastmsg+1) {
- printf("Warning: the last message is number %d.\n",
- lastmsg);
- rcfirst = nextmsg;
- }
- if (rcfirst > firstmsg)
- firstmsg = rcfirst; /* don't set below first msg */
- }
- if (newrc) {
- nextmsg = firstmsg;
- fseek(msgsrc, 0L, 0);
- fprintf(msgsrc, "%d\n", nextmsg);
- fflush(msgsrc);
- }
-
-#ifdef V7
- if (totty) {
- struct winsize win;
- if (ioctl(fileno(stdout), TIOCGWINSZ, &win) != -1)
- Lpp = win.ws_row;
- if (Lpp <= 0) {
- if (tgetent(inbuf, getenv("TERM")) <= 0
- || (Lpp = tgetnum("li")) <= 0) {
- Lpp = NLINES;
- }
- }
- }
-#endif
- Lpp -= 6; /* for headers, etc. */
-
- already = NO;
- prevmsg = firstmsg;
- printing = YES;
- if (ruptible)
- signal(SIGINT, onintr);
-
- /*
- * Main program loop
- */
- for (msg = firstmsg; msg <= lastmsg; msg++) {
-
- sprintf(fname, "%s/%d", _PATH_MSGS, msg);
- newmsg = fopen(fname, "r");
- if (newmsg == NULL)
- continue;
-
- gfrsub(newmsg); /* get From and Subject fields */
- if (locomode && !local) {
- fclose(newmsg);
- continue;
- }
-
- if (qopt) { /* This has to be located here */
- printf("There are new messages.\n");
- exit(0);
- }
-
- if (already && !hdrs)
- putchar('\n');
-
- /*
- * Print header
- */
- if (totty)
- signal(SIGTSTP, onsusp);
- (void) setjmp(tstpbuf);
- already = YES;
- nlines = 2;
- if (seenfrom) {
- printf("Message %d:\nFrom %s %s", msg, from, date);
- nlines++;
- }
- if (seensubj) {
- printf("Subject: %s", subj);
- nlines++;
- }
- else {
- if (seenfrom) {
- putchar('\n');
- nlines++;
- }
- while (nlines < 6
- && fgets(inbuf, sizeof inbuf, newmsg)
- && inbuf[0] != '\n') {
- fputs(inbuf, stdout);
- nlines++;
- }
- }
-
- lct = linecnt(newmsg);
- if (lct)
- printf("(%d%slines) ", lct, seensubj? " " : " more ");
-
- if (hdrs) {
- printf("\n-----\n");
- fclose(newmsg);
- continue;
- }
-
- /*
- * Ask user for command
- */
- if (totty)
- ask(lct? MORE : (msg==lastmsg? NOMORE : NEXT));
- else
- inbuf[0] = 'y';
- if (totty)
- signal(SIGTSTP, SIG_DFL);
-cmnd:
- in = inbuf;
- switch (*in) {
- case 'x':
- case 'X':
- exit(0);
-
- case 'q':
- case 'Q':
- quitit = YES;
- printf("--Postponed--\n");
- exit(0);
- /* intentional fall-thru */
- case 'n':
- case 'N':
- if (msg >= nextmsg) sep = "Flushed";
- prevmsg = msg;
- break;
-
- case 'p':
- case 'P':
- use_pager = (*in++ == 'p');
- /* intentional fallthru */
- case '\n':
- case 'y':
- default:
- if (*in == '-') {
- msg = prevmsg-1;
- sep = "replay";
- break;
- }
- if (isdigit(*in)) {
- msg = next(in);
- sep = in;
- break;
- }
-
- prmesg(nlines + lct + (seensubj? 1 : 0));
- prevmsg = msg;
-
- }
-
- printf("--%s--\n", sep);
- sep = "-";
- if (msg >= nextmsg) {
- nextmsg = msg + 1;
- fseek(msgsrc, 0L, 0);
- fprintf(msgsrc, "%d\n", nextmsg);
- fflush(msgsrc);
- }
- if (newmsg)
- fclose(newmsg);
- if (quitit)
- break;
- }
-
- /*
- * Make sure .rc file gets updated
- */
- if (--msg >= nextmsg) {
- nextmsg = msg + 1;
- fseek(msgsrc, 0L, 0);
- fprintf(msgsrc, "%d\n", nextmsg);
- fflush(msgsrc);
- }
- if (already && !quitit && lastcmd && totty) {
- /*
- * save or reply to last message?
- */
- msg = prevmsg;
- ask(NOMORE);
- if (inbuf[0] == '-' || isdigit(inbuf[0]))
- goto cmnd;
- }
- if (!(already || hush || qopt))
- printf("No new messages.\n");
- exit(0);
-}
-
-prmesg(length)
-int length;
-{
- FILE *outf;
-
- if (use_pager && length > Lpp) {
- signal(SIGPIPE, SIG_IGN);
- signal(SIGQUIT, SIG_IGN);
- sprintf(cmdbuf, _PATH_PAGER, Lpp);
- outf = popen(cmdbuf, "w");
- if (!outf)
- outf = stdout;
- else
- setbuf(outf, (char *)NULL);
- }
- else
- outf = stdout;
-
- if (seensubj)
- putc('\n', outf);
-
- while (fgets(inbuf, sizeof inbuf, newmsg)) {
- fputs(inbuf, outf);
- if (ferror(outf)) {
- clearerr(outf);
- break;
- }
- }
-
- if (outf != stdout) {
- pclose(outf);
- signal(SIGPIPE, SIG_DFL);
- signal(SIGQUIT, SIG_DFL);
- }
- else {
- fflush(stdout);
- }
-
- /* trick to force wait on output */
- stty(fileno(stdout), &otty);
-}
-
-void
-onintr()
-{
- signal(SIGINT, onintr);
- if (mailing)
- unlink(fname);
- if (sending) {
- unlink(fname);
- puts("--Killed--");
- exit(1);
- }
- if (printing) {
- putchar('\n');
- if (hdrs)
- exit(0);
- sep = "Interrupt";
- if (newmsg)
- fseek(newmsg, 0L, 2);
- intrpflg = YES;
- }
-}
-
-/*
- * We have just gotten a susp. Suspend and prepare to resume.
- */
-void
-onsusp()
-{
-
- signal(SIGTSTP, SIG_DFL);
- sigsetmask(0);
- kill(0, SIGTSTP);
- signal(SIGTSTP, onsusp);
- if (!mailing)
- longjmp(tstpbuf, 0);
-}
-
-linecnt(f)
-FILE *f;
-{
- off_t oldpos = ftell(f);
- int l = 0;
- char lbuf[BUFSIZ];
-
- while (fgets(lbuf, sizeof lbuf, f))
- l++;
- clearerr(f);
- fseek(f, oldpos, 0);
- return (l);
-}
-
-next(buf)
-char *buf;
-{
- int i;
- sscanf(buf, "%d", &i);
- sprintf(buf, "Goto %d", i);
- return(--i);
-}
-
-ask(prompt)
-char *prompt;
-{
- char inch;
- int n, cmsg;
- off_t oldpos;
- FILE *cpfrom, *cpto;
-
- printf("%s ", prompt);
- fflush(stdout);
- intrpflg = NO;
- (void) fgets(inbuf, sizeof inbuf, stdin);
- if ((n = strlen(inbuf)) > 0 && inbuf[n - 1] == '\n')
- inbuf[n - 1] = '\0';
- if (intrpflg)
- inbuf[0] = 'x';
-
- /*
- * Handle 'mail' and 'save' here.
- */
- if ((inch = inbuf[0]) == 's' || inch == 'm') {
- if (inbuf[1] == '-')
- cmsg = prevmsg;
- else if (isdigit(inbuf[1]))
- cmsg = atoi(&inbuf[1]);
- else
- cmsg = msg;
- sprintf(fname, "%s/%d", _PATH_MSGS, cmsg);
-
- oldpos = ftell(newmsg);
-
- cpfrom = fopen(fname, "r");
- if (!cpfrom) {
- printf("Message %d not found\n", cmsg);
- ask (prompt);
- return;
- }
-
- if (inch == 's') {
- in = nxtfld(inbuf);
- if (*in) {
- for (n=0; in[n] > ' '; n++) { /* sizeof fname? */
- fname[n] = in[n];
- }
- fname[n] = NULL;
- }
- else
- strcpy(fname, "Messages");
- }
- else {
- strcpy(fname, _PATH_TMP);
- mktemp(fname);
- sprintf(cmdbuf, _PATH_MAIL, fname);
- mailing = YES;
- }
- cpto = fopen(fname, "a");
- if (!cpto) {
- perror(fname);
- mailing = NO;
- fseek(newmsg, oldpos, 0);
- ask(prompt);
- return;
- }
-
- while (n = fread(inbuf, 1, sizeof inbuf, cpfrom))
- fwrite(inbuf, 1, n, cpto);
-
- fclose(cpfrom);
- fclose(cpto);
- fseek(newmsg, oldpos, 0); /* reposition current message */
- if (inch == 's')
- printf("Message %d saved in \"%s\"\n", cmsg, fname);
- else {
- system(cmdbuf);
- unlink(fname);
- mailing = NO;
- }
- ask(prompt);
- }
-}
-
-gfrsub(infile)
-FILE *infile;
-{
- off_t frompos;
-
- seensubj = seenfrom = NO;
- local = YES;
- subj[0] = from[0] = date[0] = NULL;
-
- /*
- * Is this a normal message?
- */
- if (fgets(inbuf, sizeof inbuf, infile)) {
- if (strncmp(inbuf, "From", 4)==0) {
- /*
- * expected form starts with From
- */
- seenfrom = YES;
- frompos = ftell(infile);
- ptr = from;
- in = nxtfld(inbuf);
- if (*in) while (*in && *in > ' ') {
- if (*in == ':' || *in == '@' || *in == '!')
- local = NO;
- *ptr++ = *in++;
- /* what about sizeof from ? */
- }
- *ptr = NULL;
- if (*(in = nxtfld(in)))
- strncpy(date, in, sizeof date);
- else {
- date[0] = '\n';
- date[1] = NULL;
- }
- }
- else {
- /*
- * not the expected form
- */
- fseek(infile, 0L, 0);
- return;
- }
- }
- else
- /*
- * empty file ?
- */
- return;
-
- /*
- * look for Subject line until EOF or a blank line
- */
- while (fgets(inbuf, sizeof inbuf, infile)
- && !(blankline = (inbuf[0] == '\n'))) {
- /*
- * extract Subject line
- */
- if (!seensubj && strncmp(inbuf, "Subj", 4)==0) {
- seensubj = YES;
- frompos = ftell(infile);
- strncpy(subj, nxtfld(inbuf), sizeof subj);
- }
- }
- if (!blankline)
- /*
- * ran into EOF
- */
- fseek(infile, frompos, 0);
-
- if (!seensubj)
- /*
- * for possible use with Mail
- */
- strncpy(subj, "(No Subject)\n", sizeof subj);
-}
-
-char *
-nxtfld(s)
-char *s;
-{
- if (*s) while (*s && *s > ' ') s++; /* skip over this field */
- if (*s) while (*s && *s <= ' ') s++; /* find start of next field */
- return (s);
-}
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