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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
commit | f9ab90d9d6d02989a075d0f0074496d5b1045e4b (patch) | |
tree | add7e996bac5289cdc55e6935750c352505560a9 /usr.bin/mail/cmd3.c | |
parent | be22b15ae2ff8d7fe06b6e14fddf0c5b444a95da (diff) | |
download | FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.zip FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.tar.gz |
BSD 4.4 Lite Usr.bin Sources
Diffstat (limited to 'usr.bin/mail/cmd3.c')
-rw-r--r-- | usr.bin/mail/cmd3.c | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/usr.bin/mail/cmd3.c b/usr.bin/mail/cmd3.c new file mode 100644 index 0000000..54a5d5e --- /dev/null +++ b/usr.bin/mail/cmd3.c @@ -0,0 +1,730 @@ +/* + * 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 sccsid[] = "@(#)cmd3.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include "rcv.h" +#include "extern.h" + +/* + * Mail -- a mail program + * + * Still more user commands. + */ + +/* + * Process a shell escape by saving signals, ignoring signals, + * and forking a sh -c + */ +int +shell(str) + char *str; +{ + sig_t sigint = signal(SIGINT, SIG_IGN); + char *shell; + char cmd[BUFSIZ]; + + (void) strcpy(cmd, str); + if (bangexp(cmd) < 0) + return 1; + if ((shell = value("SHELL")) == NOSTR) + shell = _PATH_CSHELL; + (void) run_command(shell, 0, -1, -1, "-c", cmd, NOSTR); + (void) signal(SIGINT, sigint); + printf("!\n"); + return 0; +} + +/* + * Fork an interactive shell. + */ +/*ARGSUSED*/ +int +dosh(str) + char *str; +{ + sig_t sigint = signal(SIGINT, SIG_IGN); + char *shell; + + if ((shell = value("SHELL")) == NOSTR) + shell = _PATH_CSHELL; + (void) run_command(shell, 0, -1, -1, NOSTR, NOSTR, NOSTR); + (void) signal(SIGINT, sigint); + putchar('\n'); + return 0; +} + +/* + * Expand the shell escape by expanding unescaped !'s into the + * last issued command where possible. + */ + +char lastbang[128]; + +int +bangexp(str) + char *str; +{ + char bangbuf[BUFSIZ]; + register char *cp, *cp2; + register int n; + int changed = 0; + + cp = str; + cp2 = bangbuf; + n = BUFSIZ; + while (*cp) { + if (*cp == '!') { + if (n < strlen(lastbang)) { +overf: + printf("Command buffer overflow\n"); + return(-1); + } + changed++; + strcpy(cp2, lastbang); + cp2 += strlen(lastbang); + n -= strlen(lastbang); + cp++; + continue; + } + if (*cp == '\\' && cp[1] == '!') { + if (--n <= 1) + goto overf; + *cp2++ = '!'; + cp += 2; + changed++; + } + if (--n <= 1) + goto overf; + *cp2++ = *cp++; + } + *cp2 = 0; + if (changed) { + printf("!%s\n", bangbuf); + fflush(stdout); + } + strcpy(str, bangbuf); + strncpy(lastbang, bangbuf, 128); + lastbang[127] = 0; + return(0); +} + +/* + * Print out a nice help message from some file or another. + */ + +int +help() +{ + register c; + register FILE *f; + + if ((f = Fopen(_PATH_HELP, "r")) == NULL) { + perror(_PATH_HELP); + return(1); + } + while ((c = getc(f)) != EOF) + putchar(c); + Fclose(f); + return(0); +} + +/* + * Change user's working directory. + */ +int +schdir(arglist) + char **arglist; +{ + char *cp; + + if (*arglist == NOSTR) + cp = homedir; + else + if ((cp = expand(*arglist)) == NOSTR) + return(1); + if (chdir(cp) < 0) { + perror(cp); + return(1); + } + return 0; +} + +int +respond(msgvec) + int *msgvec; +{ + if (value("Replyall") == NOSTR) + return (_respond(msgvec)); + else + return (_Respond(msgvec)); +} + +/* + * Reply to a list of messages. Extract each name from the + * message header and send them off to mail1() + */ +int +_respond(msgvec) + int *msgvec; +{ + struct message *mp; + char *cp, *rcv, *replyto; + char **ap; + struct name *np; + struct header head; + + if (msgvec[1] != 0) { + printf("Sorry, can't reply to multiple messages at once\n"); + return(1); + } + mp = &message[msgvec[0] - 1]; + touch(mp); + dot = mp; + if ((rcv = skin(hfield("from", mp))) == NOSTR) + rcv = skin(nameof(mp, 1)); + if ((replyto = skin(hfield("reply-to", mp))) != NOSTR) + np = extract(replyto, GTO); + else if ((cp = skin(hfield("to", mp))) != NOSTR) + np = extract(cp, GTO); + else + np = NIL; + np = elide(np); + /* + * Delete my name from the reply list, + * and with it, all my alternate names. + */ + np = delname(np, myname); + if (altnames) + for (ap = altnames; *ap; ap++) + np = delname(np, *ap); + if (np != NIL && replyto == NOSTR) + np = cat(np, extract(rcv, GTO)); + else if (np == NIL) { + if (replyto != NOSTR) + printf("Empty reply-to field -- replying to author\n"); + np = extract(rcv, GTO); + } + head.h_to = np; + if ((head.h_subject = hfield("subject", mp)) == NOSTR) + head.h_subject = hfield("subj", mp); + head.h_subject = reedit(head.h_subject); + if (replyto == NOSTR && (cp = skin(hfield("cc", mp))) != NOSTR) { + np = elide(extract(cp, GCC)); + np = delname(np, myname); + if (altnames != 0) + for (ap = altnames; *ap; ap++) + np = delname(np, *ap); + head.h_cc = np; + } else + head.h_cc = NIL; + head.h_bcc = NIL; + head.h_smopts = NIL; + mail1(&head, 1); + return(0); +} + +/* + * Modify the subject we are replying to to begin with Re: if + * it does not already. + */ +char * +reedit(subj) + register char *subj; +{ + char *newsubj; + + if (subj == NOSTR) + return NOSTR; + if ((subj[0] == 'r' || subj[0] == 'R') && + (subj[1] == 'e' || subj[1] == 'E') && + subj[2] == ':') + return subj; + newsubj = salloc(strlen(subj) + 5); + strcpy(newsubj, "Re: "); + strcpy(newsubj + 4, subj); + return newsubj; +} + +/* + * Preserve the named messages, so that they will be sent + * back to the system mailbox. + */ +int +preserve(msgvec) + int *msgvec; +{ + register struct message *mp; + register int *ip, mesg; + + if (edit) { + printf("Cannot \"preserve\" in edit mode\n"); + return(1); + } + for (ip = msgvec; *ip != NULL; ip++) { + mesg = *ip; + mp = &message[mesg-1]; + mp->m_flag |= MPRESERVE; + mp->m_flag &= ~MBOX; + dot = mp; + } + return(0); +} + +/* + * Mark all given messages as unread. + */ +int +unread(msgvec) + int msgvec[]; +{ + register int *ip; + + for (ip = msgvec; *ip != NULL; ip++) { + dot = &message[*ip-1]; + dot->m_flag &= ~(MREAD|MTOUCH); + dot->m_flag |= MSTATUS; + } + return(0); +} + +/* + * Print the size of each message. + */ +int +messize(msgvec) + int *msgvec; +{ + register struct message *mp; + register int *ip, mesg; + + for (ip = msgvec; *ip != NULL; ip++) { + mesg = *ip; + mp = &message[mesg-1]; + printf("%d: %d/%ld\n", mesg, mp->m_lines, mp->m_size); + } + return(0); +} + +/* + * Quit quickly. If we are sourcing, just pop the input level + * by returning an error. + */ +int +rexit(e) + int e; +{ + if (sourcing) + return(1); + exit(e); + /*NOTREACHED*/ +} + +/* + * Set or display a variable value. Syntax is similar to that + * of csh. + */ +int +set(arglist) + char **arglist; +{ + register struct var *vp; + register char *cp, *cp2; + char varbuf[BUFSIZ], **ap, **p; + int errs, h, s; + + if (*arglist == NOSTR) { + for (h = 0, s = 1; h < HSHSIZE; h++) + for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) + s++; + ap = (char **) salloc(s * sizeof *ap); + for (h = 0, p = ap; h < HSHSIZE; h++) + for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) + *p++ = vp->v_name; + *p = NOSTR; + sort(ap); + for (p = ap; *p != NOSTR; p++) + printf("%s\t%s\n", *p, value(*p)); + return(0); + } + errs = 0; + for (ap = arglist; *ap != NOSTR; ap++) { + cp = *ap; + cp2 = varbuf; + while (*cp != '=' && *cp != '\0') + *cp2++ = *cp++; + *cp2 = '\0'; + if (*cp == '\0') + cp = ""; + else + cp++; + if (equal(varbuf, "")) { + printf("Non-null variable name required\n"); + errs++; + continue; + } + assign(varbuf, cp); + } + return(errs); +} + +/* + * Unset a bunch of variable values. + */ +int +unset(arglist) + char **arglist; +{ + register struct var *vp, *vp2; + int errs, h; + char **ap; + + errs = 0; + for (ap = arglist; *ap != NOSTR; ap++) { + if ((vp2 = lookup(*ap)) == NOVAR) { + if (!sourcing) { + printf("\"%s\": undefined variable\n", *ap); + errs++; + } + continue; + } + h = hash(*ap); + if (vp2 == variables[h]) { + variables[h] = variables[h]->v_link; + vfree(vp2->v_name); + vfree(vp2->v_value); + free((char *)vp2); + continue; + } + for (vp = variables[h]; vp->v_link != vp2; vp = vp->v_link) + ; + vp->v_link = vp2->v_link; + vfree(vp2->v_name); + vfree(vp2->v_value); + free((char *) vp2); + } + return(errs); +} + +/* + * Put add users to a group. + */ +int +group(argv) + char **argv; +{ + register struct grouphead *gh; + register struct group *gp; + register int h; + int s; + char **ap, *gname, **p; + + if (*argv == NOSTR) { + for (h = 0, s = 1; h < HSHSIZE; h++) + for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) + s++; + ap = (char **) salloc(s * sizeof *ap); + for (h = 0, p = ap; h < HSHSIZE; h++) + for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) + *p++ = gh->g_name; + *p = NOSTR; + sort(ap); + for (p = ap; *p != NOSTR; p++) + printgroup(*p); + return(0); + } + if (argv[1] == NOSTR) { + printgroup(*argv); + return(0); + } + gname = *argv; + h = hash(gname); + if ((gh = findgroup(gname)) == NOGRP) { + gh = (struct grouphead *) calloc(sizeof *gh, 1); + gh->g_name = vcopy(gname); + gh->g_list = NOGE; + gh->g_link = groups[h]; + groups[h] = gh; + } + + /* + * Insert names from the command list into the group. + * Who cares if there are duplicates? They get tossed + * later anyway. + */ + + for (ap = argv+1; *ap != NOSTR; ap++) { + gp = (struct group *) calloc(sizeof *gp, 1); + gp->ge_name = vcopy(*ap); + gp->ge_link = gh->g_list; + gh->g_list = gp; + } + return(0); +} + +/* + * Sort the passed string vecotor into ascending dictionary + * order. + */ +void +sort(list) + char **list; +{ + register char **ap; + int diction(); + + for (ap = list; *ap != NOSTR; ap++) + ; + if (ap-list < 2) + return; + qsort(list, ap-list, sizeof(*list), diction); +} + +/* + * Do a dictionary order comparison of the arguments from + * qsort. + */ +int +diction(a, b) + const void *a, *b; +{ + return(strcmp(*(char **)a, *(char **)b)); +} + +/* + * The do nothing command for comments. + */ + +/*ARGSUSED*/ +int +null(e) + int e; +{ + return 0; +} + +/* + * Change to another file. With no argument, print information about + * the current file. + */ +int +file(argv) + register char **argv; +{ + + if (argv[0] == NOSTR) { + newfileinfo(); + return 0; + } + if (setfile(*argv) < 0) + return 1; + announce(); + return 0; +} + +/* + * Expand file names like echo + */ +int +echo(argv) + char **argv; +{ + register char **ap; + register char *cp; + + for (ap = argv; *ap != NOSTR; ap++) { + cp = *ap; + if ((cp = expand(cp)) != NOSTR) { + if (ap != argv) + putchar(' '); + printf("%s", cp); + } + } + putchar('\n'); + return 0; +} + +int +Respond(msgvec) + int *msgvec; +{ + if (value("Replyall") == NOSTR) + return (_Respond(msgvec)); + else + return (_respond(msgvec)); +} + +/* + * Reply to a series of messages by simply mailing to the senders + * and not messing around with the To: and Cc: lists as in normal + * reply. + */ +int +_Respond(msgvec) + int msgvec[]; +{ + struct header head; + struct message *mp; + register int *ap; + register char *cp; + + head.h_to = NIL; + for (ap = msgvec; *ap != 0; ap++) { + mp = &message[*ap - 1]; + touch(mp); + dot = mp; + if ((cp = skin(hfield("from", mp))) == NOSTR) + cp = skin(nameof(mp, 2)); + head.h_to = cat(head.h_to, extract(cp, GTO)); + } + if (head.h_to == NIL) + return 0; + mp = &message[msgvec[0] - 1]; + if ((head.h_subject = hfield("subject", mp)) == NOSTR) + head.h_subject = hfield("subj", mp); + head.h_subject = reedit(head.h_subject); + head.h_cc = NIL; + head.h_bcc = NIL; + head.h_smopts = NIL; + mail1(&head, 1); + return 0; +} + +/* + * Conditional commands. These allow one to parameterize one's + * .mailrc and do some things if sending, others if receiving. + */ +int +ifcmd(argv) + char **argv; +{ + register char *cp; + + if (cond != CANY) { + printf("Illegal nested \"if\"\n"); + return(1); + } + cond = CANY; + cp = argv[0]; + switch (*cp) { + case 'r': case 'R': + cond = CRCV; + break; + + case 's': case 'S': + cond = CSEND; + break; + + default: + printf("Unrecognized if-keyword: \"%s\"\n", cp); + return(1); + } + return(0); +} + +/* + * Implement 'else'. This is pretty simple -- we just + * flip over the conditional flag. + */ +int +elsecmd() +{ + + switch (cond) { + case CANY: + printf("\"Else\" without matching \"if\"\n"); + return(1); + + case CSEND: + cond = CRCV; + break; + + case CRCV: + cond = CSEND; + break; + + default: + printf("Mail's idea of conditions is screwed up\n"); + cond = CANY; + break; + } + return(0); +} + +/* + * End of if statement. Just set cond back to anything. + */ +int +endifcmd() +{ + + if (cond == CANY) { + printf("\"Endif\" without matching \"if\"\n"); + return(1); + } + cond = CANY; + return(0); +} + +/* + * Set the list of alternate names. + */ +int +alternates(namelist) + char **namelist; +{ + register int c; + register char **ap, **ap2, *cp; + + c = argcount(namelist) + 1; + if (c == 1) { + if (altnames == 0) + return(0); + for (ap = altnames; *ap; ap++) + printf("%s ", *ap); + printf("\n"); + return(0); + } + if (altnames != 0) + free((char *) altnames); + altnames = (char **) calloc((unsigned) c, sizeof (char *)); + for (ap = namelist, ap2 = altnames; *ap; ap++, ap2++) { + cp = (char *) calloc((unsigned) strlen(*ap) + 1, sizeof (char)); + strcpy(cp, *ap); + *ap2 = cp; + } + *ap2 = 0; + return(0); +} |