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mail.c.orig
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1992-10-30
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58KB
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1,889 lines
/* @(#)mail.c (c) copyright 1986 (Dan Heller) */
#include "mush.h"
/*
* mail.c --
* do_mail() external interface to these functions; parses options.
* mail_someone() called from do_mail() to begin composing the message.
* start_file() creates the editing file and reset signal catching.
* add_to_letter() adds the next line to letter --determine ~ escapes.
* finish_up_letter() prompts for Cc:, verifies send, adds signatures.
* send_it() expands aliases, invokes mailer, sends to record file.
* add_headers() adds all headers to a FILE *, reads draft files
* rm_edfile() signals are directed here. remove letter, longjmp
* dead_letter() make a dead.letter if mail failed.
*/
static char Subject[BUFSIZ],To[HDRSIZ],Cc[HDRSIZ],Bcc[HDRSIZ],in_reply_to[256];
static int killme;
static u_long flags;
static SIGRET (*oldterm)(), (*oldint)(), (*oldquit)();
static int finish_up_letter(), send_it(), start_file();
static long add_headers();
static jmp_buf cntrl_c_buf;
static char *Hfile, *edfile;
FILE *ed_fp;
char *hfile, *mktemp();
/* argc and argv could be null if coming from tool mode compose */
do_mail(n, argv, list)
register int n; /* no need for "argc", so use the space for a variable */
register char **argv, *list;
{
char firstchar = (argv)? **argv: 'm';
char *to = NULL, *cc = NULL, *addcc = NULL, *bcc = NULL, *subj = NULL;
char *route = NULL;
char inc_list[MAXMSGS_BITS], buf[HDRSIZ];
u_long flgs = 0;
if (ison(glob_flags, IS_GETTING)) {
wprint("You must finish the letter you are editing first.\n");
return -1;
}
if (ison(glob_flags, DO_PIPE)) {
wprint("You can't pipe out of the %s command.\n", argv? *argv : "mail");
return -1;
}
clear_msg_list(inc_list);
hfile = Hfile = NULL;
/* If piped to mail, include the messages piped */
if (ison(glob_flags, IS_PIPE) ||
(lower(firstchar) == 'r' && do_set(set_options, "autoinclude"))) {
turnon(flgs, INCLUDE);
bitput(list, inc_list, msg_cnt, =);
}
/* Set SIGN and DO_FORTUNE now so we can turn them off later */
if (do_set(set_options, "autosign"))
turnon(flgs, SIGN);
if (do_set(set_options, "fortune"))
turnon(flgs, DO_FORTUNE);
while (argv && *argv && *++argv && **argv == '-') {
n = 1;
while (n && argv[0][n])
switch (argv[0][n]) {
#ifdef VERBOSE_ARG
case 'v': turnon(flgs, VERBOSE); n++; break;
#endif /* VERBOSE_ARG */
case 'H':
if (argv[1]) {
n = 0;
Hfile = *++argv;
} else {
wprint("Must specify a file\n");
return -1;
}
when 'h':
if (argv[1]) {
n = -1; /* it gets incremented below */
hfile = savestr(*++argv);
if (ison(glob_flags, REDIRECT)) {
turnoff(glob_flags, REDIRECT);
turnon(flgs, SEND_NOW);
}
} else {
wprint("Must specify a file containing headers\n");
return -1;
}
/* Fall through */
case 'E': turnon(flgs, EDIT_HDRS); n++;
when 'e': turnon(flgs, EDIT); n++;
when 'F': turnon(flgs, DO_FORTUNE); n++;
when 'b':
if (argv[1]) {
n = 0, bcc = *++argv;
fix_up_addr(bcc);
} else {
wprint("Must specify blind-carbon list\n");
return -1;
}
when 'c':
if (argv[1]) {
n = 0, addcc = *++argv;
fix_up_addr(addcc);
} else {
wprint("Must specify carbon-copy list\n");
return -1;
}
when 's':
if (argv[1])
n = 0, subj = *++argv;
else
n++, turnon(flgs, NEW_SUBJECT);
when 'i': case 'I': case 'f': {
int m;
if (!msg_cnt) {
wprint("No message to include!\n");
return -1;
}
if (argv[0][n] == 'i') {
turnon(flgs, INCLUDE);
turnoff(flgs, INCLUDE_H);
turnoff(flgs, FORWARD);
} else if (argv[0][n] == 'I') {
turnon(flgs, INCLUDE_H);
turnoff(flgs, INCLUDE);
turnoff(flgs, FORWARD);
} else if (argv[0][n] == 'f') {
turnon(flgs, FORWARD);
turnon(flgs, SEND_NOW);
turnoff(flgs, INCLUDE_H);
turnoff(flgs, INCLUDE);
}
/* "-i 3-5" or "-i3-5" Consider the latter case first */
if (!argv[0][++n])
argv++, n = 0;
(*argv) += n;
m = get_msg_list(argv, inc_list);
(*argv) -= n;
if (m == -1)
return -1;
/* if there were args, then go back to the first char
* in the next argv
*/
if (m)
n = 0;
if (!n) /* n may be 0 from above! */
argv += (m-1);
}
when 'U':
turnon(flgs, SEND_NOW);
n++;
when 'u':
turnoff(flgs, SIGN);
turnoff(flgs, DO_FORTUNE);
n++;
when 'r':
if (lower(firstchar) == 'r') {
route = *++argv;
n = 0;
break;
}
/* fall thru */
default:
if (argv[0][n] != '?') {
wprint("%c: unknown option\n\n", argv[0][n]);
return -1;
} else
return help(0, "mail", cmd_help);
}
}
if (isoff(flgs, FORWARD)) {
if (ison(flgs, SEND_NOW)) {
if (!hfile && !Hfile) {
wprint("Can't send immediately without draft file.\n");
return -1;
}
turnoff(flgs, EDIT); /* -U overrides -e */
} else if (do_set(set_options, "autoedit"))
turnon(flgs, EDIT);
} else if (ison(flgs, EDIT)) /* -e modifies -f */
turnoff(flgs, SEND_NOW);
#ifdef VERBOSE_ARG
if (do_set(set_options, "verbose"))
turnon(flgs, VERBOSE);
#endif /* VERBOSE_ARG */
*in_reply_to = *To = *Subject = *Cc = *Bcc = 0;
if (lower(firstchar) == 'r') {
char *in_reply_fmt, *pcc = NULL;
to = To, cc = Cc;
/*
* Generate a reply to all the messages passed to respond(). This
* list is different than the include-msg list above. Get info about
* whom the messages were sent to for reply-all.
* BUG: currently, redundant addresses aren't pruned from Bcc list!
*/
for (n = 0; n < msg_cnt; n++)
if (msg_bit(list, n)) {
if (to != To)
*to++ = ',', *to++ = ' ';
(void) reply_to(n, (firstchar == 'R'), buf);
if (strlen(buf) + (to - To) > sizeof(To) - 1) {
wprint("# recipients exceeded at msg %d\n", n);
break;
}
to += Strcpy(to, buf);
if (firstchar == 'R') {
if (pcc = cc_to(n, buf)) {
/* if there was a previous cc, append ", " */
if (cc != Cc)
*cc++ = ',', *cc++ = ' ';
if (strlen(pcc) + (cc - Cc) > sizeof(Cc) - 1)
wprint("# Cc's exceeded at msg %d\n", n);
else
cc += Strcpy(cc, pcc);
}
}
/* remove redundant addresses now, or headers could get too
* long before the list runs out (it still might)
*/
rm_redundant_addrs(To, Cc);
to = To + strlen(To);
cc = Cc + strlen(Cc);
}
/* clean up end of Cc line for replyall's */
while (*cc == ' ' || *cc == ',')
*cc-- = '\0';
if (firstchar == 'R' && !do_set(set_options, "metoo")) {
/* Each reply_to() call above will leave at least
* one person in To. If that one person was us,
* we need to get removed from the complete list.
*/
(void) take_me_off(to);
}
to = To, cc = Cc;
if (route || (route = do_set(set_options, "auto_route")))
/* careful! This routine could add lots-o-bytes and lose addresses
* to avoid writing out of segment.
*/
route_addresses(To, Cc, route);
if (in_reply_fmt = do_set(set_options, "in_reply_to"))
/* "9" here is a magic # --see compose_hdr() */
(void) strcpy(in_reply_to,
format_hdr(current_msg, in_reply_fmt, FALSE)+9);
}
if (ison(flgs, FORWARD) && ison(flgs, EDIT) ||
lower(firstchar) == 'r' && isoff(flgs, NEW_SUBJECT)) {
turnoff(flgs, NEW_SUBJECT);
if (subj && *subj && (isoff(flgs, FORWARD) || ison(flgs, EDIT)))
subj = strcpy(Subject, subj);
else if (subj = subject_to(current_msg, buf))
subj = strcpy(Subject, buf + 4*(lower(firstchar) != 'r'));
} else if (isoff(flgs, NEW_SUBJECT) && isoff(flgs, FORWARD) &&
(do_set(set_options, "ask") || do_set(set_options, "asksub")))
turnon(flgs, NEW_SUBJECT);
if (argv && *argv) {
char buf[HDRSIZ];
(void) argv_to_string(buf, argv);
fix_up_addr(buf);
to = &To[strlen(To)];
if (*To)
*to++ = ',', *to++ = ' ';
(void) strcpy(to, buf);
to = To;
}
if (addcc && *addcc) {
cc = &Cc[strlen(Cc)];
if (*Cc)
*cc++ = ',', *cc++ = ' ';
(void) strcpy(cc, addcc); /* addcc has already been fixed up */
cc = Cc;
}
/* remove any redundant addresses that just got added */
rm_redundant_addrs(To, Cc);
if (bcc && *bcc)
(void) strncpy(Bcc, bcc, sizeof(Bcc)); /* bcc already fixed up */
bcc = Bcc;
return mail_someone(to, subj, cc, bcc, flgs, inc_list);
}
static
mail_someone(to, subject, cc, bcc, flgs, list)
register char *to, *subject, *cc, *bcc, *list;
u_long flgs;
{
register char *p;
flags = flgs;
if (to && *to) {
if (!*To)
(void) strncpy(To, to, sizeof(To));
} else
to = NO_STRING;
if (subject && *subject) {
if (!*Subject)
(void) strncpy(Subject, subject, sizeof(Subject));
} else
subject = NO_STRING;
if (cc && *cc) {
if (!*Cc)
(void) strncpy(Cc, cc, sizeof(Cc));
} else
Cc[0] = '\0';
if (bcc && *bcc) {
if (!*Bcc)
(void) strncpy(Bcc, bcc, sizeof(Bcc));
} else
Bcc[0] = '\0';
if (ison(glob_flags, REDIRECT)) {
/*
* NOTE: Could change this to finish_up_letter() to allow
* signatures to be appended. The -U! option to mush would
* be extended to suppress signing when redirection is on.
*/
int sent = send_it();
if (sent == -1) {
wprint("Message not sent!\n");
rm_edfile(-1);
}
return sent;
}
/* if (!*to) then prompting will be done */
if (!istool && !hfile) {
if (p = set_header("To: ", to, !*to)) {
if (!*to) /* if user typed To-line here, fix up the addresses */
fix_up_addr(p);
(void) strcpy(To, p);
}
if (!*To && ison(flags, FORWARD) && ison(flags, SEND_NOW)) {
turnoff(flags, SEND_NOW); /* user must edit To: line or do again */
print("(You must add a To: address.)\n");
}
/* don't prompt for subject if forwarding mail */
if (isoff(flags, FORWARD) && (*subject || ison(flags, NEW_SUBJECT)) &&
(p = set_header("Subject: ", subject,
!*subject && ison(flags, NEW_SUBJECT))))
(void) strcpy(Subject, p);
if (*Cc || ison(flags, EDIT_HDRS) && do_set(set_options, "askcc")) {
if ((p = set_header("Cc: ", cc, !*Cc)) && *p) {
fix_up_addr(p);
(void) strcpy(Cc, p);
}
}
if (*Bcc)
print("Bcc: %s\n", Bcc);
putchar('\n');
}
/* If forwarding w/o editing, start a new file for each. */
if (ison(flags, FORWARD) && ison(flags, SEND_NOW)) {
char fwd[MAXMSGS_BITS];
register int i;
clear_msg_list(fwd);
for (i = 0; i < msg_cnt; i++)
if (msg_bit(list, i)) {
set_msg_bit(fwd, i);
if (start_file(fwd) < 0)
return -1;
turnon(msg[i].m_flags, FORWARD);
if (isoff(glob_flags, READ_ONLY))
turnon(glob_flags, DO_UPDATE);
clear_msg_list(fwd);
}
} else
return start_file(list);
return 0;
}
static
start_file(list)
char *list;
{
register char *dir;
register int i;
char line[MAXPATHLEN];
int had_hfile = FALSE;
/* getdir() uses the home directory if no tmpdir */
if (!(dir = getdir(do_set(set_options, "tmpdir"))))
alted:
dir = ALTERNATE_HOME;
(void) mktemp(sprintf(line, "%s/%s", dir, EDFILE));
strdup(edfile, line);
if (!(ed_fp = mask_fopen(edfile, "w+"))) {
if (strcmp(dir, ALTERNATE_HOME))
goto alted;
error("can't create %s", edfile);
return -1;
}
if (!istool) {
oldint = signal(SIGINT, rm_edfile);
oldquit = signal(SIGQUIT, rm_edfile);
oldterm = signal(SIGTERM, rm_edfile);
}
if (istool && isoff(flags, SEND_NOW) ||
(isoff(flags, FORWARD) || isoff(flags, SEND_NOW)) &&
(ison(flags, EDIT_HDRS) || do_set(set_options, "edit_hdrs"))) {
turnon(flags, EDIT_HDRS);
if (hfile)
had_hfile = TRUE;
if (add_headers(NULL_FILE, &ed_fp, 1, flags) == (long) -1)
return -1;
}
if (Hfile) {
(void) file_to_fp(Hfile, ed_fp, "r");
Hfile = NULL;
had_hfile = TRUE;
}
if (istool && isoff(flags, SEND_NOW))
strdup(hfile, edfile);
/* if flags call for it, include current message (with header?) */
if (ison(flags, INCLUDE|FORWARD|INCLUDE_H)) {
long copy_flgs = 0, is_forw = ison(flags, FORWARD);
char buf[sizeof(To)];
if (!is_forw) {
turnon(copy_flgs, INDENT);
if (ison(flags, INCLUDE_H) &&
!chk_option("alwaysignore", "include"))
turnon(copy_flgs, NO_IGNORE);
else if (ison(flags, INCLUDE))
turnon(copy_flgs, NO_HEADER);
} else if (ison(flags, SEND_NOW) ||
!chk_option("alwaysignore", "forward"))
turnon(copy_flgs, FORWARD); /* FORWARD implies NO_IGNORE */
#ifdef MSG_SEPARATOR
turnon(copy_flgs, NO_SEPARATOR);
#endif /* MSG_SEPARATOR */
for (i = 0; i < msg_cnt; i++)
if (msg_bit(list, i)) {
if (is_forw && isoff(flags, SEND_NOW)) {
(void) reply_to(i, FALSE, buf);
(void) fprintf(ed_fp,"--- Forwarded mail from %s\n\n",buf);
}
wprint("%sing message %d ...",
is_forw? "forward" : "includ", i+1);
wprint("(%d lines)\n",
copy_msg(i, ed_fp, (u_long) copy_flgs, NULL));
set_isread(i); /* if we included it, we read it, right? */
if (is_forw && isoff(flags, SEND_NOW))
(void) fprintf(ed_fp,
"\n--- End of forwarded message from %s\n", buf);
if (!is_forw || isoff(flags, SEND_NOW))
(void) fputc('\n', ed_fp);
}
(void) fflush(ed_fp);
}
if (!istool && ison(glob_flags, WARNING)) {
if (escape && strncmp(escape, DEF_ESCAPE, 1))
print("(escape character is set to `%c')\n", *escape);
if (wrapcolumn && wrapcolumn < 20)
print("(warning: wrapping only %d columns from the left!)\n",
wrapcolumn);
}
/* do an "if" again in case editor not found and EDIT turned off */
if (!istool && ison(flags, EDIT)) {
char **argv, *edit;
int argc;
if ((!(edit = do_set(set_options, "visual")) || !*edit) &&
(!(edit = do_set(set_options, "editor")) || !*edit))
edit = DEF_EDITOR;
(void) sprintf(line, "%s %s", edit, edfile);
if ((argv = mk_argv(line, &argc, FALSE)) && argc > 0) {
print("Starting \"%s\"...\n", argv[0]);
(void) fclose(ed_fp);
ed_fp = NULL_FILE;
execute(argv);
free_vec(argv);
turnoff(flags, EDIT);
turnoff(flags, FORWARD); /* forwarded messages must be unedited */
/* upon exit of editor, user must now type eofc or "." to send */
if (!(ed_fp = fopen(edfile, "r+"))) {
error("can't reopen %s", edfile);
return -1;
}
(void) fseek(ed_fp, 0L, 2);
} else
print("Unable to start \"%s\"\n", edit);
wprint("(continue editing letter or ^%c to send)\n", eofc + '@');
} else if (ison(flags, SEND_NOW)) {
/* if finish_up_letter() was successful, file was successfully sent. */
if (!setjmp(cntrl_c_buf) && finish_up_letter() == 0) {
rm_edfile(0);
return 0;
}
} else if (had_hfile) {
/* it's not obvious what's going on -- enlighten user */
wprint("(continue editing or ^%c to send)\n", eofc + '@');
}
#ifdef SUNTOOL
if (istool) {
/* toolmode doesn't care if SEND_NOW -- user continues to edit file.
* if SEND_NOW is not set, then the editor file has just been started,
* so again, just return so user can edit file.
*/
if (ed_fp)
fclose(ed_fp), ed_fp = NULL_FILE;
turnon(glob_flags, IS_GETTING);
return 0;
}
#endif /* SUNTOOL */
if (ison(flags, SEND_NOW)) {
/* editing couldn't have been on -- finish_up_letter() failed */
rm_edfile(0 - ison(flags, FORWARD));
return -1;
}
i = 0;
turnon(glob_flags, IS_GETTING);
do {
/* If the user hits ^C in cbreak mode, mush will return to
* Getstr and not clear the buffer. whatever is typed next will
* be appended to the line. jumping here will force the line to
* be cleared cuz it's a new call.
*/
(void) setjmp(cntrl_c_buf);
while (Getstr(line, sizeof(line), 0) > -1) {
if (!istool) /* toolmode checks on a timer -- don't do it here */
(void) check_new_mail(); /* if new mail comes in, get it */
if ((i = add_to_letter(line)) <= 0)
break;
}
} while (i >= 0 && finish_up_letter() == -1);
turnoff(glob_flags, IS_GETTING);
return i; /* return -1 if ~x or ~q to terminate letter */
}
char *tilde_commands[] = {
"commands: [OPTIONAL argument]",
"t [list]\tChange list of recipients",
"s [subject]\tModify [set] subject header",
"c [cc list]\tModify [set] carbon copy recipients",
"b [bcc list]\tModify [set] blind carbon recipients",
"h\t\tModify all message headers",
"e [editor]\tEnter editor. Editor used: \"set editor\", env EDITOR, vi",
"v [editor]\tEnter visual editor. \"set visual\", env VISUAL, vi",
"u\t\tEdit previous (last) line in file.",
"p [pager]\tPage message; pager used: \"set pager\", env. PAGER, more",
"i [msg#'s]\tInclude current msg body [msg#'s] indented by \"indent_str\"",
"I [msg#'s]\tSame, but include the message headers from included messages",
"f [msg#'s]\tForward mail. Not indented, but marked as \"forwarded mail\"",
"S[!]\t\tInclude Signature file [suppress file]",
"F[!]\t\tAdd a fortune at end of letter [don't add]",
"w file\t\tWrite msg buffer to file name",
"a file\t\tAppend msg buffer to file name",
"r file\t\tRead filename into message buffer",
"q \t\tQuit message; save in dead.letter (unless \"nosave\" is set).",
"x \t\tQuit message; don't save in dead.letter.",
"$variable\tInsert the string value for \"variable\" into message.",
":cmd\t\tRun the mail command \"cmd\".",
"|cmd\t\tPipe the message through the unix command \"cmd\".",
"E[!]\t\tClear contents of letter after saving to dead.letter [unless !].",
0
};
/*
* TC_EDIT(tc) returns TRUE if tilde_command[tc] involves message
* editing operations. Used when EDIT_HDRS is active.
*/
#define TC_EDIT(tc) ((tc) && ((tc) < 6 || !tilde_commands[(tc)+1]))
/*
* Add the line (char *) parameter to the letter. Determine tilde
* escapes and determine what to do. This function returns 0 to
* indicate user wants to end the letter, -1 if the letter cannot
* be sent (~q, ~x no buffer after editor, etc...) or 1 to indicate
* successful addition of the line to the letter.
* This function may be called by toolmode just to change certain mush
* internal variables via tilde escapes. Thus, ed_fp might be null.
*/
add_to_letter(line)
char line[];
{
register char *p;
char buf[HDRSIZ > MAXPATHLEN ? HDRSIZ : MAXPATHLEN];
killme = 0;
if (ed_fp) /* may be null if istool */
(void) fseek(ed_fp, 0L, 2);
if (!strcmp(line, ".") && do_set(set_options, "dot"))
return 0;
if (line[0] != *escape || ison(glob_flags, QUOTE_MACRO)) {
(void) fputs(line, ed_fp);
(void) fputc('\n', ed_fp);
(void) fflush(ed_fp);
return 1;
}
/* all commands are "~c" (where 'c' is the command). set p = first
* character after 'c' and skip whitespace
*/
p = &line[2];
skipspaces(0);
switch (line[1]) {
case 'v' : case 'p': case 'e' : case '|' : {
if (!*p || *p == 'i')
switch (line[1]) {
case 'p' :
if (!*p && !(p = do_set(set_options, "pager")))
p = DEF_PAGER;
if (!*p || !strcmp(p, "internal"))
p = NULL;
when 'v' :
if (*p && p[1] || (p = do_set(set_options, "visual")))
break;
/* else fall through */
default :
if (!(p = do_set(set_options, "editor")) || !*p)
p = DEF_EDITOR;
when '|' :
print("No command for pipe\n");
return 1;
}
if (line[1] == 'p' || line[1] == '|')
rewind(ed_fp);
if (line[1] == 'p') {
(void) do_pager(p, TRUE); /* start the pager "p" */
if (isoff(flags, EDIT_HDRS)) {
(void) do_pager(sprintf(buf, "To: %s\n", To), FALSE);
if (Subject[0])
(void) do_pager(sprintf(buf, "Subject: %s\n", Subject),
FALSE);
if (Cc[0])
(void) do_pager(sprintf(buf, "Cc: %s\n", Cc), FALSE);
if (Bcc[0])
(void) do_pager(sprintf(buf, "Bcc: %s\n", Bcc), FALSE);
(void) do_pager(strcpy(buf,
"--------\nMessage contains:\n"),
FALSE);
}
while (fgets(buf, sizeof(buf), ed_fp))
if (do_pager(buf, FALSE) == EOF)
break;
(void) do_pager(NULL, FALSE); /* end pager */
} else if (line[1] == '|') {
FILE *pipe_fp;
(void) sprintf(buf, "( %s ) > %s", p, edfile);
if (unlink(edfile) < 0) {
error("Can't unlink %s:", edfile);
break; /* Drop out of switch */
}
if ((pipe_fp = popen(buf, "w")) == NULL_FILE) {
error("Can't run \"%s\":", p);
(void) file_to_fp(edfile, ed_fp, "w");
} else {
while (fgets(buf, sizeof(buf), ed_fp))
if (fputs(buf, pipe_fp) == EOF) {
print("Broken pipe\n");
break;
}
(void) pclose(pipe_fp);
}
pipe_fp = ed_fp; /* save ed_fp until we can reopen it */
if (!(ed_fp = fopen(edfile, "r+"))) {
error("can't reopen %s", edfile);
(void) rewind(pipe_fp);
if (file_to_fp(edfile, pipe_fp, "w") < 0 ||
!(ed_fp = fopen(edfile, "r+"))) {
error("can't restore old contents of %s", edfile);
ed_fp = pipe_fp;
dead_letter(0);
return -1;
}
}
(void) fclose(pipe_fp);
} else {
char **argv;
int argc;
(void) sprintf(buf, "%s %s", p, edfile);
if ((argv = mk_argv(buf, &argc, FALSE)) && argc > 0) {
(void) fclose(ed_fp);
ed_fp = NULL_FILE;
execute(argv);
free_vec(argv);
/* tool will return even tho editor isn't done */
if (!(ed_fp = fopen(edfile, "r+"))) {
error("can't reopen %s", edfile);
return -1;
}
} else
print("Unable to start \"%s\"\n", p);
}
}
when '$': {
register char *p2;
if (!(p2 = do_set(set_options, p)))
print("(%s isn't set)\n", p);
else
putstring(p2, ed_fp);
}
when ':': {
char new[MAXMSGS_BITS];
u_long save_flags = glob_flags;
turnon(glob_flags, IGN_SIGS);
turnoff(glob_flags, DO_PIPE);
turnoff(glob_flags, IS_PIPE);
(void) cmd_line(p, new);
glob_flags = save_flags;
}
when 'i': case 'f': case 'I': case 'm': {
int n;
u_long copy_flgs = 0;
char list[MAXMSGS_BITS];
if (!msg_cnt) {
wprint("No messages.\n");
break;
}
clear_msg_list(list);
if (line[1] != 'f') {
turnon(copy_flgs, INDENT);
if (line[1] == 'i')
turnon(copy_flgs, NO_HEADER);
else if (!chk_option("alwaysignore", "include"))
turnon(copy_flgs, NO_IGNORE);
} else if (!chk_option("alwaysignore", "forward"))
turnon(copy_flgs, NO_IGNORE);
#ifdef MSG_SEPARATOR
turnon(copy_flgs, NO_SEPARATOR);
#endif /* MSG_SEPARATOR */
if (!*p)
set_msg_bit(list, current_msg);
else if (!do_range(p, list))
return 1;
for (n = 0; n < msg_cnt; n++)
if (msg_bit(list, n)) {
if (line[1] == 'f') {
(void) reply_to(n, FALSE, buf);
(void) fprintf(ed_fp,
"--- Forwarded mail from %s\n\n", buf);
}
wprint("Including message %d ... ", n+1);
wprint("(%d lines)\n", copy_msg(n, ed_fp, copy_flgs, NULL));
set_isread(n);
if (line[1] == 'f')
(void) fprintf(ed_fp,
"\n--- End of forwarded message from %s\n\n", buf);
else
(void) fputc('\n', ed_fp);
}
}
/* To: Cc: and Bcc: headers */
when 'b':
case 't':
case 'c': {
char *h = (line[1] == 't')? To : (line[1] == 'c')? Cc : Bcc;
char *Prompt = line[1] == 't'? "To: " :
line[1] == 'c'? "Cc: " : "Bcc: ";
if (ison(flags, EDIT_HDRS)) {
print("You must use an editor to change your headers.\n");
break;
}
if (*p) {
fix_up_addr(p);
if (*h)
(void) sprintf(h+strlen(h), ", %s", p);
else
(void) strcpy(h, p);
} else if (!(p = set_header(Prompt, h, TRUE)) || !*p)
*h = 0;
else {
fix_up_addr(p);
(void) strcpy(h, p);
}
}
when 's':
if (ison(flags, EDIT_HDRS)) {
print("You must use an editor to change your headers.\n");
break;
}
if (*p || (p = set_header("Subject: ", Subject, 1)))
if (!*p)
Subject[0] = 0;
else
(void) strcpy(Subject, p);
when 'h':
if (ison(flags, EDIT_HDRS)) {
print("You must use an editor to change your headers.\n");
break;
}
while ((p = set_header("To: ", To, 1)) && !*p)
print("(There must be a recipient.)\n");
(void) strcpy(To, p);
if (p = set_header("Subject: ", Subject, 1))
if (!*p)
Subject[0] = 0;
else
(void) strcpy(Subject, p);
if (p = set_header("Cc: ", Cc, 1))
if (!*p)
Cc[0] = 0;
else {
fix_up_addr(p);
(void) strcpy(Cc, p);
}
if (p = set_header("Bcc: ", Bcc, 1))
if (!*p)
Bcc[0] = 0;
else {
fix_up_addr(p);
(void) strcpy(Bcc, p);
}
when 'F': case 'S' : {
if (*p == '!')
turnoff(flags, line[1] == 'F'? DO_FORTUNE : SIGN);
else
turnon(flags, line[1] == 'F'? DO_FORTUNE : SIGN);
wprint("%sadding %s at end of message.\n", *p == '!'? "not " : "",
line[1] == 'F'? "fortune" : "signature");
}
when 'w': case 'a': case 'r':
if (!*p) {
print("(you must specify a filename)\n");
return 1;
}
(void) fseek(ed_fp, 0L, 2); /* append */
(void) file_to_fp(p, ed_fp, (line[1] == 'r')? "r":
(line[1] == 'w')? "w": "a");
/* go up one line in the message file and allow the user to edit it */
when 'u': {
long newpos, pos = ftell(ed_fp);
char oldline[256];
if (pos <= 0L) { /* pos could be -1 if ftell() failed */
print("(No previous line in file.)\n");
return 1;
}
/* get the last 256 bytes written and read backwards from the
* current place until '\n' is found. Start by moving past the
* first \n which is at the end of the line we want to edit
*/
newpos = max(0, pos - 256L);
(void) fseek(ed_fp, newpos, L_SET);
/* don't fgets -- it'll stop at a \n */
(void) fread(line, sizeof(char), (int)(pos-newpos), ed_fp);
pos--;
/* the last char in line should be a \n cuz it was last input */
if (line[(int)(pos-newpos)] != '\n')
print("I don't know how, but your last line ended with %c.\n",
line[(int)(pos-newpos)]);
else
line[(int)(pos-newpos)] = 0; /* null terminate \n for ^H-ing */
for (pos--; pos > newpos && line[(int)(pos-newpos)] != '\n'; pos--)
;
/* we've gone back to the end of the second previous line. Check
* to see if the char we're pointing to is a \n. It should be, but
* if it's not, we moved back to the first line of the file.
*/
if (line[(int)(pos-newpos)] == '\n')
++pos;
/* save the old line that's there in case the user boo-boos */
(void) strcpy(oldline, &line[(int)(pos-newpos)]);
/* let set header print out the line and get the input */
if (!(p = set_header("", &line[(int)(pos-newpos)], TRUE))) {
print("Something bad happened and I don't know what it is.\n");
p = oldline;
} else if (*p == *escape)
print("(Warning: %c escapes ignored on %cu lines.)\n",
*escape, *escape);
/* seek to to the position where the new line will go */
(void) fseek(ed_fp, pos, L_SET);
/* put the newly typed line */
(void) fputs(p, ed_fp); /* don't add \n. padding may be necessary */
/* if the new line is less than the old line, we're going to do
* one of two things. The best thing to do is to truncate the
* file to the end of the new line. Sys-v can't do that, so we
* pad the line with blanks. May be messy in some cases, but...
*/
if ((pos = strlen(p) - strlen(oldline)) < 0) {
#ifndef SYSV
/* add the \n, flush the file, truncate to the current pos */
(void) fputc('\n', ed_fp);
(void) fflush(ed_fp);
(void) ftruncate(fileno(ed_fp), (off_t) ftell(ed_fp));
#else /* SYSV */
/* pad with blanks to the length of the old line. add \n */
while (pos++ < 0)
(void) fputc(' ', ed_fp);
(void) fputc('\n', ed_fp), (void) fflush(ed_fp);
#endif /* SYSV */
} else {
/* the new line is >= the old line, add \n -- no trunc req. */
(void) fputc('\n', ed_fp);
(void) fflush(ed_fp);
}
return 1;
}
/* break; not here cuz of "return" (lint). */
case 'E':
if (ison(flags, EDIT_HDRS)) {
print("You must use an editor to empty the message buffer.\n");
break;
}
if (*p != '!' && !do_set(set_options, "nosave"))
dead_letter(0);
if (emptyfile(&ed_fp, edfile) == -1) {
error(edfile);
return -1;
} else
print("Message buffer empty\n");
when 'q':
/* save in dead.letter if nosave not set -- rm_edfile(-2). */
rm_edfile(-2); /* doesn't return out of tool mode */
return -1;
/* break; not stated cuz of "return" (lint) */
case 'x':
/* don't save dead.letter -- simulate normal rm_edfile() call */
rm_edfile(0);
return -1;
/* break; (not specified for lint) */
default:
if (line[1] == *escape) {
(void) fputs(&line[1], ed_fp);
(void) fputc('\n', ed_fp);
(void) fflush(ed_fp);
return 1;
} else if (line[1] == '?') {
register int x;
(void) do_pager(NULL, TRUE); /* start pager */
for (x = 0; tilde_commands[x]; x++) {
if (ison(flags, EDIT_HDRS) && TC_EDIT(x))
continue;
(void) sprintf(buf, "%s%s\n", escape, tilde_commands[x]);
if (do_pager(buf, FALSE) == EOF)
break;
}
if (tilde_commands[x] == NULL) {
(void) sprintf(buf,
"%s%s\t\tBegin a line with a single %s\n",
escape, escape, escape);
(void) do_pager(buf, FALSE);
}
(void) do_pager(NULL, FALSE); /* end pager */
} else
print("`%c': unknown %c escape. Use %c? for help.\n",
line[1], *escape, *escape);
return 1;
}
if (ed_fp)
(void) fseek(ed_fp, 0L, 2);
if (!istool)
wprint("(continue editing letter)\n");
return 1;
}
/*
* finish up the letter. ask for the cc line, if verify is set, ask to
* verify sending, continue editing, or to dump the whole idea.
* Then check for signature and fortune. Finally, pass it to send_it()
* to actually send it off.
* Return 0 on success, -1 on failure.
*/
static int
finish_up_letter()
{
register char *p;
int c;
char buf[MAXPATHLEN];
/* forwarded mail has no additional personalized text */
if (ison(flags, FORWARD)) {
if (send_it() == -1) {
wprint("Message not sent!\n");
return -1;
}
turnoff(glob_flags, IS_GETTING);
return 0;
}
/* REDIRECT should never be on here, but just in case */
if (isoff(glob_flags, REDIRECT)) {
if (!istool) {
if (isoff(flags, EDIT_HDRS) && do_set(set_options, "askcc")) {
if (p = set_header("Cc: ", Cc, 1))
(void) strcpy(Cc, p);
}
}
/* ~v on the Cc line asks for verification, first initialize p! */
p = NULL;
if (!strncmp(Cc, "~v", 2) ||
/* Flashy test for $verify either empty or set to "mail" */
glob(p = do_set(set_options, "verify"),
"{,{,*[ \\,]}mail{,[ \\,]*}}")) {
if (!p) /* so we don't Cc to ~v! */
*Cc = 0;
for (;;) {
#ifdef SUNTOOL
if (istool)
c = (ask("Send Message?") == TRUE)? 's' : 'c';
else
#endif /* SUNTOOL */
{
print("send, continue editing, discard [s,c,d]? ");
c = Getstr(buf, sizeof(buf), 0);
if (c < 0)
putchar('\n');
else if (!istool)
c = lower(*buf);
}
if (c == 'd') {
rm_edfile(-2);
return 0;
} else if (c == 'c') {
wprint("(continue editing letter)\n");
return -1;
} else if (c == 's')
break;
}
}
}
if (send_it() == -1) {
if (isoff(flags, SEND_NOW))
wprint("(continue)\n");
return -1;
}
return 0;
}
/*
* actually send the letter.
* 1. reset all the signals because of fork.
* 2. determine recipients (users, address, files, programs)
* 3. determine mailer, fork and return (if not verbose).
* 4. popen mailer, $record, and other files specified in step 1.
* 5. make the headers; this includes To: line, and user set headers, etc...
* 6. copy the letter right into the array of file pointers (step 1).
* 7. close the mailer and other files (step 1) and remove the edit-file.
* return -1 if mail wasn't sent. could be user error, could be the system.
* allow user to try again or to save message to file and abort message.
* return 0 if successful.
*/
static int
send_it()
{
register char *p, *b, *addr_list;
#ifdef MAXFILES
register int size = MAXFILES - 1;
FILE *files[MAXFILES];
char *names[MAXFILES];
#else
register int size = getdtablesize() - 1;
FILE *files[30]; /* 30 should be sufficiently large enough */
char *names[30];
#endif /* MAXFILES */
#if defined(VERBOSE_ARG)
SIGRET (*oldchld)();
#endif /* VERBOSE_ARG */
int next_file = 1; /* reserve files[0] for the mail delivery program */
int log_file = -1; /* the index into the files array for mail logging */
char buf[3*HDRSIZ];
char *orig_to, *orig_cc, *orig_bcc; /* save originals to restore on error */
char expand = !do_set(set_options, "no_expand");
int fork_pid;
names[0] = names[1] = NULL; /* for free_vec() */
/* If edit_hdrs, make sure the correct headers exist and are intact
* before bothering to continue.
*/
if (ison(flags, EDIT_HDRS)) {
/* fool header_field into thinking that the file is the folder */
FILE *save_tmpf = tmpf;
long old_offset = msg[msg_cnt].m_offset;
if (!ed_fp) {
wprint("No file for headers!\n");
return -1;
}
Debug("Getting headers from file ... ");
tmpf = ed_fp;
msg[msg_cnt].m_offset = 0L;
if (p = header_field(msg_cnt, "to")) {
(void) strcpy(To, p);
Cc[0] = Bcc[0] = 0;
if (p = header_field(msg_cnt, "cc"))
(void) strcpy(Cc, p);
if (p = header_field(msg_cnt, "bcc"))
(void) strcpy(Bcc, p);
if (p = header_field(msg_cnt, "fcc"))
next_file += find_files(p, names+next_file, size-next_file, 1);
} else
*To = 0; /* Error caught below */
msg[msg_cnt].m_offset = old_offset;
tmpf = save_tmpf;
Debug("\n");
}
if (!*To) {
wprint("You must have a To: recipient to send mail.\n");
if (!istool) {
(void) signal(SIGINT, oldint);
(void) signal(SIGQUIT, oldquit);
(void) signal(SIGTERM, oldterm);
}
free_vec(&names[1]);
return -1;
}
if (!(p = do_set(set_options, "sendmail")))
p = MAIL_DELIVERY;
#ifdef VERBOSE_ARG
/* Tool mode can't do verbosity -- no window for the MTA output */
if (!istool && (ison(flags, VERBOSE) || do_set(set_options, "verbose"))) {
turnon(flags, VERBOSE); /* prevent fork when "verbose" has changed */
oldchld = signal(SIGCHLD, SIG_DFL); /* let pclose() do the wait() */
#if defined(MMDF) && !defined(M_EXECMAIL)
b = &buf[strlen(sprintf(buf, "%s%s", p, VERBOSE_ARG))];
#else /* MMDF */
b = &buf[strlen(sprintf(buf, "%s %s", p, VERBOSE_ARG))];
#endif /* MMDF && !M_EXECMAIL */
} else
#endif /* VERBOSE_ARG */
b = buf + Strcpy(buf, p);
#ifdef METOO_ARG
if (!strcmp(p, MAIL_DELIVERY) && do_set(set_options, "metoo"))
b += strlen(sprintf(b, " %s", METOO_ARG));
#endif /* METOO_ARG */
*b++ = ' ', *b = 0; /* strcat(b, " "); */
addr_list = b; /* save this position to check for addresses later */
/* save original list. If alias expansion fails, replace address lists
* with what was originally typed so user can fix it. This isn't necessary
* if the lists are already in the file the user is editing (edit_hdrs).
*/
if (isoff(flags, EDIT_HDRS))
orig_to = savestr(To);
/*
* Build the address lines to give to the mail transfer system. This
* address line cannot contain comment fields! First, expand aliases
* since they may contain comment fields within addresses. Copy this
* result back into the Buffer since this will go into the header ...
* Next, remove all comments so the buffer contains ONLY valid addresses.
* Next, strip off any filenames/programs which might occur in the list.
* Finally, add this information to the command line buffer (buf).
* Remove commas if necessary (see ifdefs). In the event of errors,
* force a dead letter by rm_edfile(-1).
*/
if (!(p = alias_to_address(To))) {
print("address expansion failed for To: list.\n");
free_vec(&names[1]);
if (isoff(flags, EDIT_HDRS))
strcpy(To, orig_to), xfree(orig_to);
return -1;
} else {
next_file += find_files(p, names+next_file, size-next_file, 0);
if (expand)
(void) strcpy(To, p);
rm_cmts_in_addr(p);
skipspaces(0);
b += Strcpy(b, p);
}
if (isoff(flags, EDIT_HDRS))
orig_cc = savestr(Cc);
if (*Cc) {
if (!(p = alias_to_address(Cc))) {
wprint("address expansion failed for Cc: list.\n");
free_vec(&names[1]);
if (isoff(flags, EDIT_HDRS)) {
strcpy(To, orig_to), xfree(orig_to);
strcpy(Cc, orig_cc), xfree(orig_cc);
}
return -1;
} else {
next_file += find_files(p, names+next_file, size-next_file, 0);
if (expand)
(void) strcpy(Cc, p);
rm_cmts_in_addr(p);
skipspaces(0);
if (*p) {
*b++ = ',', *b++ = ' ';
b += Strcpy(b, p);
}
}
}
/* expand Bcc addrs, but don't add to list yet. sign letter first */
if (isoff(flags, EDIT_HDRS))
orig_bcc = savestr(Bcc);
if (*Bcc) {
if (p = alias_to_address(Bcc))
p = strcpy(Bcc, p);
else {
wprint("address expansion failed for Bcc: list.\n");
free_vec(&names[1]);
/* rm_edfile(-1); */
if (isoff(flags, EDIT_HDRS)) {
strcpy(To, orig_to), xfree(orig_to);
strcpy(Cc, orig_cc), xfree(orig_cc);
strcpy(Bcc, orig_bcc), xfree(orig_bcc);
}
return -1;
}
} else
p = NULL;
/* Sign the letter before adding the Bcc list since they aren't
* considered when adding a signature.
*/
if (*addr_list && ison(flags, SIGN|DO_FORTUNE) &&
isoff(glob_flags, REDIRECT) && isoff(flags, FORWARD))
sign_letter(addr_list, flags, ed_fp);
if (p) { /* p still points to expanded Bcc list */
next_file += find_files(p, names+next_file, size-next_file, 0);
rm_cmts_in_addr(p);
skipspaces(0);
if (*p) {
*b++ = ',', *b++ = ' ';
b += Strcpy(b, p);
}
}
if (!*addr_list && next_file == 1) {
wprint("There must be at least 1 legal recipient.\n");
if (isoff(flags, EDIT_HDRS)) {
strcpy(To, orig_to), xfree(orig_to);
strcpy(Cc, orig_cc), xfree(orig_cc);
strcpy(Bcc, orig_bcc), xfree(orig_bcc);
}
return -1;
}
#ifdef NO_COMMAS
for (p = buf; p = index(p, ','); p++)
*p = ' ';
#endif /* NO_COMMAS */
Debug("mail command: %s\n", buf);
if (isoff(flags, VERBOSE) && debug < 3)
switch (fork_pid = fork()) {
case 0: /* the child will send the letter. ignore signals */
#if defined(SYSV) && !defined(AUX) && !defined(IRIX4)
if (setpgrp() == -1)
#else /* !SYSV || AUX || IRIX4 */
if (setpgrp(0, getpid()) == -1)
#endif /* SYSV && !AUX || IRIX4 */
error("setpgrp");
/* NOTE: No special case needed for tool here because
* this is the sending child -- it's going to pclose()
* and then exit(), so who cares about the notifier?
*/
(void) signal(SIGCHLD, SIG_DFL);
(void) signal(SIGTERM, SIG_IGN);
(void) signal(SIGINT, SIG_IGN);
(void) signal(SIGHUP, SIG_IGN);
(void) signal(SIGQUIT, SIG_IGN);
#ifdef SIGTTIN
(void) signal(SIGTTOU, SIG_IGN);
(void) signal(SIGTTIN, SIG_IGN);
#endif /* SIGTTIN */
#ifdef SIGCONT
(void) signal(SIGCONT, SIG_IGN);
(void) signal(SIGTSTP, SIG_IGN);
#endif /* SIGCONT */
turnon(glob_flags, IGN_SIGS);
when -1:
error("fork failed trying to send mail");
if (isoff(flags, EDIT_HDRS)) {
strcpy(To, orig_to);
strcpy(Cc, orig_cc);
strcpy(Bcc, orig_bcc);
}
/* fall thru */
default:
if (fork_pid > 0) {
#ifdef SUNTOOL
/* If we're a tool, we have to register a handler
* for the fork_pid. Otherwise, it's used only as
* an error indicator, so reset it to zero.
*/
if (istool)
notify_set_wait3_func(mfprint_sw, my_wait3, fork_pid);
#endif /* SUNTOOL */
fork_pid = 0;
}
/* istool doesn't need ed_fp, so don't keep it around */
if (istool || !fork_pid && isoff(glob_flags, REDIRECT))
(void) fclose(ed_fp), ed_fp = NULL_FILE;
free_vec(&names[1]);
if (isoff(flags, EDIT_HDRS))
xfree(orig_to), xfree(orig_cc), xfree(orig_bcc);
if (!istool) {
(void) signal(SIGINT, oldint);
(void) signal(SIGQUIT, oldquit);
(void) signal(SIGTERM, oldterm);
}
return fork_pid;
}
#if defined(MMDF) && !defined(M_EXECMAIL)
*(addr_list-1) = '\0';
#endif /* MMDF && !M_EXECMAIL */
if (debug > 2) {
files[0] = stdout;
if (!*addr_list)
addr_list = "[no recipients]";
} else if (*addr_list) {
if (!(files[0] = open_file(buf, TRUE, FALSE))) {
rm_edfile(-1); /* force saving of undeliverable mail */
if (isoff(flags, VERBOSE) && debug < 3)
exit(-1);
else
return 0;
}
} else
files[0] = NULL_FILE;
if (ison(flags, VERBOSE))
wprint("Sending letter ... "), (void) fflush(stdout);
#if defined(MMDF) && !defined(M_EXECMAIL)
/* give address list to submit */
for (p = addr_list; *p && (p = any(p, ",<")); p++)
if (*p == ',')
*p = '\n';
else
p = index(p, '>');
if (*addr_list)
(void) fprintf(files[0], "%s\n\n", addr_list);
#endif /* MMDF && !M_EXECMAIL */
/* see if log is set. This is just to add message headers. No msg body. */
if (p = do_set(set_options, "logfile")) {
if (!*p)
p = "~/mail.log";
if (!index("~|/+", *p))
(void) sprintf(buf, "%s/%s", do_set(set_options, "cwd"), p);
else
(void) strcpy(buf, p);
log_file = next_file;
next_file += find_files(buf, names+next_file, size-next_file, 0);
if (log_file == next_file)
log_file = -1;
}
/* see if record is set. If so, open that file for appending and add
* the letter in a format such that mail can be read from it
*/
if (p = do_set(set_options, "record")) {
if (!*p)
p = "~/record";
if (!index("~|/+", *p))
(void) sprintf(buf, "%s/%s", do_set(set_options, "cwd"), p);
else
(void) strcpy(buf, p);
next_file += find_files(buf, names+next_file, size-next_file, 0);
}
/* Don't need to open names[0] as files[0], so skip those */
next_file = 1 + open_list(names + 1, files + 1, next_file - 1);
/* First, put the message separator in... */
for (size = 1; size < next_file; size++)
#ifndef MSG_SEPARATOR
{
time_t t;
(void) time(&t);
(void) fprintf(files[size], "From %s %s", login, ctime(&t));
}
#else /* MSG_SEPARATOR */
#ifdef MMDF
(void) fputs(MSG_SEPARATOR, files[size]);
#else /* MMDF */
(void) fprintf(files[size], "%s\n", MSG_SEPARATOR);
#endif /* MMDF */
#endif /* MSG_SEPARATOR */
/* if redirection, ed_fp = stdin, else rewind the file just made */
if (isoff(glob_flags, REDIRECT))
rewind(ed_fp);
else
ed_fp = stdin;
#ifndef MSG_SEPARATOR
/* If forwarding or reading a draft, skip the leading From_ line.
* This is done for drafts so that messages saved by dead_letter()
* can be read back in as a draft; in other cases, this isn't done
* for edit_hdrs because FORWARD wouldn't be set.
*/
if (ison(flags, FORWARD|SEND_NOW) && fgets(buf, sizeof buf, ed_fp) &&
strncmp(buf, "From ", 5) != 0)
rewind(ed_fp); /* No From_ line (should never happen) */
#endif /* MSG_SEPARATOR */
{
long offset = add_headers(ed_fp, files, next_file, flags);
if (offset == -1)
offset = 0L;
(void) fseek(ed_fp, offset, L_SET);
}
/* Read from stdin or the edfile till EOF and send it all to the mailer
* and other open files/folders/programs. Check for "From " at the
* beginnings of these lines to prevent creating new messages in folders.
*/
while (fgets(buf, sizeof buf, ed_fp))
for (size = 0; size < next_file; size++) {
if (!files[size]) /* files[0] will be NULL if not calling MTA */
continue;
if (size == log_file)
continue;
#ifndef MSG_SEPARATOR
if (!strncmp(buf, "From ", 5))
(void) fputc('>', files[size]);
#endif /* MSG_SEPARATOR */
if (fputs(buf, files[size]) == EOF) {
if (size == 0) {
error("Lost connection to MTA");
dead_letter(-1);
break;
} else {
/* Drop this file, but continue writing others */
if (names[size]) {
error("Write failed: %s", names[size]);
(void) close_lock(names[size], files[size]);
xfree(names[size]);
} else
error("Write failed");
if (size < --next_file) {
names[size] = names[next_file];
files[size--] = files[next_file];
}
files[next_file] = NULL_FILE;
names[next_file] = NULL;
}
}
}
/* loop thru the open files (except for the first: the mail delivery agent)
* and append a blank line so that ucb-mail can read these folders.
* Then close the files.
*/
for (size = 1; size < next_file; size++) {
#ifdef END_MSG_SEP
(void) fputs(END_MSG_SEP, files[size]);
#endif /* END_MSG_SEP */
if (names[size]) {
#ifndef END_MSG_SEP
(void) fputc('\n', files[size]);
#endif /* !END_MSG_SEP */
if (close_lock(names[size], files[size]) == EOF) {
error("Warning: Close failed: %s", names[size]);
}
xfree(names[size]);
} else {
if (debug < 3)
(void) fclose(files[size]); /* Don't mess with pclose() */
else
(void) pclose(files[size]); /* unless we never forked */
}
}
if (debug < 3) {
int reply_code = files[0]? pclose(files[0]) : (MTA_EXIT << 8);
Debug("pclose reply_code = %d\n", reply_code);
rm_edfile((reply_code == (MTA_EXIT << 8))? 0 : -1);
} else
rm_edfile(0);
#ifdef VERBOSE_ARG
if (!istool && ison(flags, VERBOSE))
(void) signal(SIGCHLD, oldchld);
#endif /* VERBOSE_ARG */
if (ison(flags, VERBOSE) || debug > 2) {
if (isoff(glob_flags, REDIRECT))
wprint("sent.\n");
if (!istool) {
(void) signal(SIGINT, oldint);
(void) signal(SIGQUIT, oldquit);
(void) signal(SIGTERM, oldterm);
}
} else
exit(0); /* not a user exit -- a child exit */
return 0;
}
/*
* Add the necessary headers to make a file a legitimate mail message.
* This could be for a file which the user will edit (via edit_hdrs) or
* for delivery to an MTA.
* Make folders conform to RFC-822 by adding From: and Date: headers.
* Prefix certain header with the "Resent-" prefix when forwarding.
* Return offset of fp if we're parsing it for headers (for delivery to MTA).
*/
static long
add_headers(fp, files, size, flags)
FILE *fp, *files[];
int size;
u_long flags;
{
char buf[BUFSIZ], From_buf[256], *pF = From_buf, date_str[64];
char *host = NULL, *p, *subj = NULL, *own_from = NULL; /* See WARNING */
int i, for_editor = (fp == NULL_FILE);
int got_date = for_editor, got_from = for_editor;
struct options *opts;
if (for_editor && hfile) {
i = file_to_fp(hfile, files[0], "r");
xfree(hfile), hfile = NULL;
return (i < 0 ? -1 : TRUE);
}
buf[0] = 0;
if (ourname)
host = ourname[0];
if (for_editor)
turnoff(flags,FORWARD); /* forwarded messages must not be edited */
/* [Re]create a From: header -- check first to see if the user has
* created a From: header with the my_hdr command (the own_hdrs list).
* If his is not legitimate, warn user and use the other header.
*/
if ((for_editor || isoff(flags, EDIT_HDRS)) &&
own_hdrs && !do_set(set_options, "no_hdrs")) {
for (opts = own_hdrs; opts; opts = opts->next)
if (!strcmp(opts->option, "From:")) {
p = opts->value;
skipspaces(0);
sprintf(buf, "%sFrom: %s\n",
ison(flags, FORWARD)? "Resent-" : "", p);
own_from = buf;
/* WARNING: the above depends on the following facts:
* 1. If for_editor, own_from will be output immediately,
* so buf will not be overwritten;
* 2. If !for_editor but EDIT_HDRS, the "real" from line
* will be read from the file so own_from isn't needed;
* 3. If neither, From: is the first line output, so
* buf will not be overwritten.
* Any change in the above means a new buffer for own_from
* may be needed. Check carefully.
*/
}
}
if (ison(flags, FORWARD))
pF += Strcpy(From_buf, "Resent-");
pF += Strcpy(pF, "From: ");
#ifdef UUCP
if (host && *host)
pF += strlen(sprintf(pF, "%s!", host));
#endif /* UUCP */
pF += Strcpy(pF, login);
#ifndef UUCP
if (host && *host)
pF += strlen(sprintf(pF, "@%s", host));
#endif /* UUCP */
if ((p = do_set(set_options, "realname")) ||
(p = do_set(set_options, "name")))
pF += strlen(sprintf(pF, " (%s)", p));
*pF++ = '\n', *pF++ = 0;
/* First print From, Date, In-Reply-To */
for (i = 0; i < size; i++) {
if (!files[i])
continue;
if (for_editor)
if (own_from)
(void) fputs(own_from, files[i]);
else
(void) fputs(From_buf, files[i]);
else if (isoff(flags, EDIT_HDRS)) {
#ifdef PICKY_MAILER
if (i > 0)
#endif /* PICKY_MAILER */
if (own_from)
(void) fputs(own_from, files[i]);
else
(void) fputs(From_buf, files[i]);
got_from = TRUE;
}
if (for_editor || isoff(flags, EDIT_HDRS)) {
#ifdef PICKY_MAILER
if (i > 0 && !for_editor)
#endif /* PICKY_MAILER */
(void) fprintf(files[i], "%sDate: %s\n",
ison(flags, FORWARD) ? "Resent-" : "", rfc_date(date_str));
got_date = TRUE;
if (*in_reply_to)
fprintf(files[i], "In-Reply-To: %s\n", in_reply_to);
}
}
if (own_from)
*own_from = 0; /* buf[0] must be 0 below */
/* next print user's own message headers */
if (for_editor || isoff(flags, EDIT_HDRS))
if (own_hdrs && !do_set(set_options, "no_hdrs")) {
for (opts = own_hdrs; opts; opts = opts->next) {
if (!strcmp(opts->option, "From:"))
continue;
for (i = 0; i < size; i++) {
if (!files[i])
continue;
p = opts->value;
skipspaces(0);
fprintf(files[i], "%s %s\n", opts->option, p);
}
}
}
/*
* Now either prepare to put the rest of the headers into the file
* or (when sending edited headers) copy them back out of the file
*/
if (for_editor) {
char *orig = NULL;
/* for edit_hdrs, print the headers followed by a blank line */
if (To[0]) {
orig = savestr(To);
if (!(p = alias_to_address(To))) {
wprint("To: list unmodified.\n");
p = orig;
}
(void) strcpy(To, p);
}
if (Cc[0]) {
strdup(orig, Cc);
if (!(p = alias_to_address(Cc))) {
wprint("Cc: list unmodified.\n");
p = orig;
}
(void) strcpy(Cc, p);
}
if (Bcc[0]) {
strdup(orig, Bcc);
if (!(p = alias_to_address(Bcc))) {
wprint("Bcc: list unmodified.\n");
p = orig;
}
(void) strcpy(Bcc, p);
}
xfree(orig);
} else if (ison(flags, EDIT_HDRS)) {
/* copy the headers of the message removing special headers */
int print_hdr = FALSE;
if (isoff(flags, SEND_NOW))
rewind(fp); /* Drafts may have had fp positioned */
while (fgets(buf, sizeof(buf), fp)) {
(void) no_newln(buf);
if (!buf[0])
break;
/* if the first char is NOT a space, it MUST be a new header.
* Otherwise, it is considered part of the message body.
*/
if (!isspace(buf[0])) {
print_hdr = TRUE;
if (!(p = any(buf, " \t:")) || isspace(*p))
break; /* this is not a legitimate header */
skipspaces(1);
if (!*p)
print_hdr = FALSE; /* blank headers are not allowed */
p = buf;
if (!lcase_strncmp(buf, "resent-", 7)) {
if (ison(flags, EDIT_HDRS))
wprint("You can't use \"Resent-\" headers in edited messages.\n");
p += 7;
}
if (!lcase_strncmp(p, "to:", 3) ||
!lcase_strncmp(p, "cc:", 3) ||
!lcase_strncmp(p, "bcc:", 4) ||
!lcase_strncmp(p, "fcc:", 4) ||
!lcase_strncmp(p, "x-mailer:", 9) ||
!lcase_strncmp(p, "status:", 7))
print_hdr = FALSE;
else if (!lcase_strncmp(p, "date:", 5))
if (got_date)
wprint("You can't change or add date headers.\n");
else {
got_date = TRUE;
(void) sprintf(buf, "Date: %s", rfc_date(date_str));
p = buf;
}
else if (!lcase_strncmp(p, "subject:", 8))
(print_hdr = FALSE), strdup(subj, p);
else if (!lcase_strncmp(p, "from:", 5)) {
char not_me[BUFSIZ];
(void) strcpy(not_me, buf + 5);
take_me_off(not_me);
if (*not_me) {
/* Ignore bogus From: if we have a good one */
if (got_from)
print_hdr = FALSE;
/* otherwise, output a good one */
else {
(void) strcpy(buf, From_buf);
(void) no_newln(buf);
}
}
got_from = TRUE;
#ifdef PICKY_MAILER
/* don't send From: to mta -- fool "for loop" below
* by initializing the loop at files[1], not files[0]
*/
if (!for_editor)
print_hdr = 2;
#endif /* PICKY_MAILER */
}
}
if (print_hdr)
/* print_hdr may be 2 for From: header */
for (i = print_hdr-1; i < size; i++)
if (files[i]) {
(void) fputs(buf, files[i]);
(void) fputc('\n', files[i]);
}
}
}
/* Finally, do the required (or changed) headers (Date, To, Cc) */
(void) wrap_addrs(To, 80);
(void) wrap_addrs(Cc, 80);
(void) wrap_addrs(Bcc, 80);
for (i = 0; i < size; i++) {
if (!files[i])
continue;
#ifdef PICKY_MAILER
if (i > 0) {
#endif /* PICKY_MAILER */
if (!got_from)
(void) fputs(From_buf, files[i]);
if (!got_date)
(void) fprintf(files[i], "%sDate: %s\n",
ison(flags, FORWARD) ? "Resent-" : "", rfc_date(date_str));
#ifdef PICKY_MAILER
}
#endif /* PICKY_MAILER */
(void) fprintf(files[i], "X-Mailer: %s\n", check_internal("version"));
(void) fprintf(files[i], "%sTo: %s\n",
ison(flags, FORWARD) ? "Resent-" : "", To);
if (for_editor || isoff(flags, EDIT_HDRS)) {
if (isoff(flags, FORWARD) &&
(*Subject || for_editor && (do_set(set_options, "ask") ||
do_set(set_options, "asksub"))))
(void) fprintf(files[i], "Subject: %s\n", Subject);
} else if (subj && *subj && strlen(subj) > 9)
(void) (fputs(subj, files[i]), fputc('\n', files[i]));
if (*Cc || for_editor && do_set(set_options, "askcc"))
(void) fprintf(files[i], "%sCc: %s\n",
ison(flags, FORWARD) ? "Resent-" : "", Cc);
if (i > 0 || for_editor)
/* Do not send these to mail transfer agent */
if (*Bcc)
(void) fprintf(files[i], "%sBcc: %s\n",
ison(flags, FORWARD) ? "Resent-" : "", Bcc);
if (i > 0)
(void) fprintf(files[i], "Status: OR\n");
}
for (i = 0; i < size; i++)
if (files[i])
(void) fflush(files[i]);
if (buf[0]) /* last attempted header read was a line of msg text */
for (i = 0; i < size; i++) {
if (files[i]) {
(void) fputs(buf, files[i]);
(void) fputc('\n', files[i]);
(void) fflush(files[i]);
}
}
else
if (isoff(flags, FORWARD))
for (i = 0; i < size; i++)
if (files[i]) {
(void) fputc('\n', files[i]);
(void) fflush(files[i]);
}
return fp? ftell(fp) : (long)TRUE;
}
/* ARGSUSED */
SIGRET
rm_edfile(sig)
{
if (sig > 0) {
char *fix;
if (ison(glob_flags, IGN_SIGS))
return;
/* wrapcolumn may have been trashed -- restore it */
if ((fix = do_set(set_options, "wrapcolumn")) && *fix)
wrapcolumn = atoi(fix);
mac_flush(); /* abort pending macros */
}
/* now check whether we should abort the letter */
if (sig > 0 && !killme && ison(glob_flags, IS_GETTING)) {
if (!istool)
(void) signal(sig, rm_edfile);
killme = 1;
print("\n** interrupt -- one more to kill letter **\n");
longjmp(cntrl_c_buf, 1);
}
killme = 0;
/* if sig == -1, force a save into dead.letter.
* else, check for nosave not being set and save anyway if it's not set
* sig == 0 indicates normal exit (or ~x), so don't save a dead letter.
*/
if (sig == -1 || sig != 0 && !do_set(set_options, "nosave"))
dead_letter(sig);
if (isoff(glob_flags, REDIRECT) && ed_fp) /* ed_fp may be null in toolmode*/
(void) fclose(ed_fp), ed_fp = NULL_FILE;
(void) unlink(edfile);
turnoff(glob_flags, IS_GETTING);
if (sig == -1)
return;
if (sig == SIGHUP)
cleanup(0);
if (!istool) {
(void) signal(SIGINT, oldint);
(void) signal(SIGQUIT, oldquit);
(void) signal(SIGTERM, oldterm);
}
if (sig == 0 || sig == -2 || istool) /* make sure sigchld is reset first */
return;
if (isoff(glob_flags, DO_SHELL)) { /* If we're not in a shell, exit */
puts("exiting");
echo_on();
exit(1);
}
longjmp(jmpbuf, 1);
}
/* save letter into dead letter */
dead_letter(sig)
int sig; /* signal passed to rm_edfile() or 0 */
{
char *p, buf[BUFSIZ];
long t;
FILE *dead;
if (ison(glob_flags, REDIRECT)) {
print("input redirected -- can't save dead letter.\n");
return;
}
/* If the file doesn't exist, get outta here. File may not exist if
* user generated a ^C from a promptable header and catch sent us here.
*/
if (!ed_fp && Access(edfile, R_OK) != 0)
return;
/* User may have killed mush via a signal while he was in an editor.
* ed_fp will be NULL in this case. Since the file does exist (above),
* open it so we can copy it to dead letter.
*/
if (!ed_fp && !(ed_fp = fopen(edfile, "r"))) {
error("can't save dead letter from %s", edfile);
return;
}
/* don't save a dead letter if there's nothing to save. */
if (fseek(ed_fp, 0L, 2) || ftell(ed_fp) <= 1L)
return;
if (!(p = do_set(set_options, "dead")))
p = "~/dead.letter";
if (!(dead = open_file(p + (*p == '|'), (*p == '|'), TRUE)))
return;
(void) time (&t);
(void) fflush(ed_fp);
rewind(ed_fp);
#ifdef MSG_SEPARATOR
(void) fputs(MSG_SEPARATOR, dead);
#ifndef MMDF
(void) fputc('\n', dead);
#endif /* MMDF */
#else /* MSG_SEPARATOR */
(void) fprintf(dead, "From %s %s", login, ctime(&t));
#endif /* MSG_SEPARATOR */
(void) fprintf(dead, "From: %s\nTo: %s\nSubject: %s\n", login, To, Subject);
(void) fprintf(dead, "Date: %s\n", rfc_date(buf));
if (*Cc)
(void) fprintf(dead, "Cc: %s\n", Cc);
if (*Bcc)
(void) fprintf(dead, "Bcc: %s\n", Bcc);
(void) fputc('\n', dead);
while (fgets(buf, sizeof(buf), ed_fp))
(void) fputs(buf, dead);
(void) fputc('\n', dead);
#ifdef END_MSG_SEP
(void) fputs(END_MSG_SEP, dead);
#endif /* END_MSG_SEP */
if (*p != '|')
(void) close_lock(p, dead);
else
(void) pclose(dead);
wprint("Saved%s letter in %s.\n", sig > 0? " unfinished" : "", p);
}