/*
* Print mail entries
*/
void
printmail()
{
static char pn[] = "printmail";
int flg, curlet, showlet, k, print, aret, stret, rc;
int nsmbox = 0; /* 1 ==> mailbox is in non-standard place */
int sav_j = -1;
char *p, *getarg();
struct stat stbuf;
struct stat *stbufp;
int ttyf = isatty(1) ? TTY : ORDINARY;
char readbuf[LSIZE]; /* holds user's response in interactive mode */
char *resp;
gid_t savedegid;
stbufp = &stbuf;
/*
* create working directory mbox name
*/
if ((hmbox = malloc(strlen(home) + strlen(mbox) + 1)) == NULL) {
errmsg(E_MBOX, "");
return;
}
cat(hmbox, home, mbox);
/*
* If we are not using an alternate mailfile, then get
* the $MAIL value and build the filename for the mailfile.
* If $MAIL is set, but is NOT the 'standard' place, then
* use it but set flgf to circumvent :saved processing.
*/
if (!flgf) {
if ((p = malloc(strlen(maildir) + strlen(my_name) + 1))
== NULL) {
errmsg(E_MEM, "");
return;
}
cat(p, maildir, my_name);
if (((mailfile = getenv("MAIL")) == NULL) ||
(strlen(mailfile) == 0)) {
/* $MAIL not set, use standard path to mailfile */
mailfile = p;
} else {
if (strcmp(mailfile, p) != 0) {
flgf = 1;
nsmbox = 1;
Dout(pn, 0, "$MAIL ('%s') != standard path\n",
mailfile);
Dout("", 0, "\tSetting flgf to 1.\n");
}
free(p);
}
}
/*
* Get ACCESS and MODIFICATION times of mailfile BEFORE we
* use it. This allows us to put them back when we are
* done. If we didn't, the shell would think NEW mail had
* arrived since the file times would have changed.
*/
stret = CERROR;
if (access(mailfile, A_EXIST) == A_OK) {
if ((stret = stat(mailfile, stbufp)) != A_OK) {
errmsg(E_FILE, "Cannot stat mailfile");
return;
}
mf_gid = stbufp->st_gid;
mf_uid = stbufp->st_uid;
utimep->actime = stbufp->st_atime;
utimep->modtime = stbufp->st_mtime;
file_size = stbufp->st_size;
}
/* Open the file as the real gid */
savedegid = getegid();
(void) setegid(getgid());
malf = fopen(mailfile, "r");
(void) setegid(savedegid);
/*
* stat succeeded, but we cannot access the mailfile
*/
if (stret == CSUCCESS && malf == NULL) {
char buf[MAXFILENAME+50];
(void) snprintf(buf, sizeof (buf),
"Invalid permissions on %s", mailfile);
errmsg(E_PERM, buf);
return;
} else
/*
* using an alternate mailfile, but we failed on access
*/
if (!nsmbox && flgf && (malf == NULL)) {
errmsg(E_FILE, "Cannot open mailfile");
return;
}
/*
* we failed to access OR the file is empty
*/
else if ((malf == NULL) || (stbuf.st_size == 0)) {
if (!flge && !flgE) {
printf("No mail.\n");
}
error = E_FLGE;
Dout(pn, 0, "error set to %d\n", error);
return;
}
if (flge)
return;
if (flgE) {
if (utimep->modtime < utimep->actime) {
error = E_FLGE_OM;
Dout(pn, 0, "error set to %d\n", error);
}
return;
}
/*
* Secure the mailfile to guarantee integrity
*/
lock(my_name);
/*
* copy mail to temp file and mark each letter in the
* let array --- mailfile is still locked !!!
*/
mktmp();
copymt(malf, tmpf);
onlet = nlet;
fclose(malf);
fclose(tmpf);
unlock(); /* All done, OK to unlock now */
tmpf = doopen(lettmp, "r+", E_TMP);
changed = 0;
print = 1;
curlet = 0;
while (curlet < nlet) {
/*
* reverse order ?
*/
showlet = flgr ? curlet : nlet - curlet - 1;
if (setjmp(sjbuf) == 0 && print != 0) {
/* -h says to print the headers first */
if (flgh) {
gethead(showlet, 0);
flgh = 0; /* Only once */
/* set letter # to invalid # */
curlet--;
showlet =
flgr ? curlet : nlet - curlet - 1;
} else {
if (showlet != sav_j) {
/* Looking at new message. */
/* Reset flag to override */
/* non-display of binary */
/* contents */
sav_j = showlet;
pflg = 0;
Pflg = flgP;
}
copylet(showlet, stdout, ttyf);
}
}
/*
* print only
*/
if (flgp) {
curlet++;
continue;
}
/*
* Interactive
*/
interactive = 1;
setjmp(sjbuf);
stat(mailfile, stbufp);
if (stbufp->st_size != file_size) {
/*
* New mail has arrived, load it
*/
k = nlet;
lock(my_name);
malf = doopen(mailfile, "r", E_FILE);
fclose(tmpf);
tmpf = doopen(lettmp, "a", E_TMP);
fseek(malf, let[nlet].adr, 0);
copymt(malf, tmpf);
file_size = stbufp->st_size;
fclose(malf);
fclose(tmpf);
unlock();
tmpf = doopen(lettmp, "r+", E_TMP);
if (++k < nlet)
printf("New mail loaded into letters %d - %d\n",
k, nlet);
else
printf("New mail loaded into letter %d\n",
nlet);
}
/* read the command */
printf("? ");
fflush(stdout);
fflush(stderr);
if (fgets(readbuf, sizeof (readbuf), stdin) == NULL) break;
resp = readbuf;
while (*resp == ' ' || *resp == '\t') resp++;
print = 1;
Dout(pn, 0, "resp = '%s'\n", resp);
if ((rc = atoi(resp)) != 0) {
if (!validmsg(rc)) print = 0;
else curlet = flgr ? rc - 1 : nlet - rc;
} else switch (resp[0]) {
default:
printf("Usage:\n");
/*
* help
*/
case '?':
print = 0;
for (rc = 0; help[rc]; rc++)
printf("%s", help[rc]);
break;
/*
* print message number of current message
*/
case '#':
print = 0;
if ((showlet == nlet) || (showlet < 0)) {
printf("No message selected yet.\n");
} else {
printf("Current message number is %d\n",
showlet+1);
}
break;
/*
* headers
*/
case 'h':
print = 0;
if (resp[2] != 'd' &&
resp[2] != 'a' &&
(rc = getnumbr(resp+1)) > 0) {
showlet = rc - 1;
curlet = flgr ? rc - 1 : nlet - rc- 1;
}
if (rc == -1 && resp[2] != 'a' &&
resp[2] != 'd')
break;
if (resp[2] == 'a') rc = 1;
else if (resp[2] == 'd') rc = 2;
else rc = 0;
/*
* if (!validmsg(showlet)) break;
*/
gethead(showlet, rc);
break;
/*
* skip entry
*/
case '+':
case 'n':
case '\n':
curlet++;
break;
case 'P':
Pflg++;
break;
case 'p':
pflg++;
break;
case 'x':
changed = 0;
case 'q':
goto donep;
/*
* Previous entry
*/
case '^':
case '-':
if (--curlet < 0) curlet = 0;
break;
/*
* Save in file without header
*/
case 'y':
case 'w':
/*
* Save mail with header
*/
case 's':
print = 0;
if (!validmsg(curlet)) break;
if (resp[1] == '\n' || resp[1] == '\0') {
cat(resp+1, hmbox, "");
} else if (resp[1] != ' ') {
printf("Invalid command\n");
break;
}
umask(umsave);
flg = 0;
if (getarg(lfil, resp + 1) == NULL) {
cat(resp + 1, hmbox, "");
}
malf = (FILE *)NULL;
p = resp + 1;
while ((p = getarg(lfil, p)) != NULL) {
if (flg) {
fprintf(stderr,
"%s: File '%s' skipped\n",
program, lfil);
continue;
}
malf = NULL;
if ((aret = legal(lfil))) {
malf = fopen(lfil, "a");
}
if ((malf == NULL) || (aret == 0)) {
fprintf(stderr,
"%s: Cannot append to %s\n",
program, lfil);
flg++;
} else if (aret == 2) {
chown(lfil, my_euid, my_gid);
}
if (!flg &&
copylet(showlet, malf, resp[0] ==
's'? ORDINARY: ZAP) == FALSE) {
fprintf(stderr,
"%s: Cannot save mail to '%s'\n",
program, lfil);
flg++;
} else
Dout(pn, 0, "!saved\n");
if (malf != (FILE *)NULL) {
fclose(malf);
}
}
umask(7);
if (!flg) {
setletr(showlet, resp[0]);
print = 1;
curlet++;
}
break;
/*
* Reply to a letter
*/
case 'r':
print = 0;
if (!validmsg(curlet)) break;
replying = 1;
for (k = 1; resp[k] == ' ' || resp[k] == '\t';
++k);
resp[strlen(resp)-1] = '\0';
(void) strlcpy(m_sendto, resp+k,
sizeof (m_sendto));
goback(showlet);
replying = 0;
setletr(showlet, resp[0]);
break;
/*
* Undelete
*/
case 'u':
print = 0;
if ((k = getnumbr(resp+1)) <= 0) k = showlet;
else k--;
if (!validmsg(k)) break;
setletr(k, ' ');
break;
/*
* Mail letter to someone else
*/
case 'm':
{
reciplist list;
print = 0;
if (!validmsg(curlet)) break;
new_reciplist(&list);
flg = 0;
k = 0;
if (substr(resp, " -") != -1 ||
substr(resp, "\t-") != -1) {
printf("Only users may be specified\n");
break;
}
p = resp + 1;
while ((p = getarg(lfil, p)) != NULL) {
char *env;
if (lfil[0] == '$') {
if (!(env = getenv(&lfil[1]))) {
fprintf(stderr,
"%s: %s has no value or is not exported.\n",
program, lfil);
flg++;
} else
add_recip(&list, env,
FALSE);
k++;
} else if (lfil[0] != '\0') {
add_recip(&list, lfil, FALSE);
k++;
}
}
(void) strlcpy(Rpath, my_name, sizeof (Rpath));
sending = TRUE;
flg += sendlist(&list, showlet, 0);
sending = FALSE;
if (k) {
if (!flg) {
setletr(showlet, 'm');
print = 1;
curlet++;
}
} else
printf("Invalid command\n");
del_reciplist(&list);
break;
}
/*
* Read new letters
*/
case 'a':
if (onlet == nlet) {
printf("No new mail\n");
print = 0;
break;
}
curlet = 0;
print = 1;
break;
/*
* Escape to shell
*/
case '!':
systm(resp + 1);
printf("!\n");
print = 0;
break;
/*
* Delete an entry
*/
case 'd':
print = 0;
k = 0;
if (strncmp("dq", resp, 2) != SAME &&
strncmp("dp", resp, 2) != SAME)
if ((k = getnumbr(resp+1)) == -1) break;
if (k == 0) {
k = showlet;
if (!validmsg(curlet)) break;
print = 1;
curlet++;
} else k--;
setletr(k, 'd');
if (resp[1] == 'p') print = 1;
else if (resp[1] == 'q') goto donep;
break;
}
}
/*
* Copy updated mailfile back
*/
donep:
if (changed) {
copyback();
stamp();
}
}
/*
Send mail - High level sending routine
*/
void
sendmail(int argc, char **argv)
{
char **args;
char *tp, *zp;
char *buf = NULL;
size_t bufsize = 0;
char last1c;
FILE *input;
struct stat sbuf;
int aret;
int i, n;
int oldn = 1;
int ttyf = 0;
int pushrest = 0;
int hdrtyp = 0;
int ctf = FALSE;
int binflg = 0;
long count = 0L;
struct tm *bp;
struct hdrs *hptr;
static char pn[] = "sendmail";
reciplist list;
buf = smalloc(bufsize = 2048);
Dout(pn, 0, "entered\n");
new_reciplist(&list);
for (i = 1; i < argc; ++i) {
if (argv[i][0] == '-') {
if (argv[i][1] == '\0') {
errmsg(E_SYNTAX,"Hyphens MAY NOT be followed by spaces");
}
if (i > 1) {
errmsg(E_SYNTAX,"Options MUST PRECEDE persons");
}
done(0);
}
/*
Ensure no NULL names in list
*/
if (argv[i][0] == '\0' || argv[i][strlen(argv[i])-1] == '!') {
errmsg(E_SYNTAX,"Null names are not allowed");
done(0);
}
add_recip(&list, argv[i], FALSE); /* Don't check for duplication */
}
mktmp();
/*
Format time
*/
time(&iop);
bp = localtime(&iop);
tp = asctime(bp);
zp = tzname[bp->tm_isdst];
sprintf(datestring, "%.16s %.4s %.5s", tp, zp, tp+20);
trimnl (datestring);
/* asctime: Fri Sep 30 00:00:00 1986\n */
/* 0123456789012345678901234 */
/* RFCtime: Fri, 28 Jul 89 10:30 EDT */
sprintf(RFC822datestring, "%.3s, %.2s %.3s %.4s %.5s %.3s",
tp, tp+8, tp+4, tp+20, tp+11, zp);
/*
Write out the from line header for the letter
*/
if (fromflag && deliverflag && from_user[0] != '\0') {
snprintf(buf, bufsize, "%s%s %s\n",
header[H_FROM].tag, from_user, datestring);
} else {
snprintf(buf, bufsize, "%s%s %s\n",
header[H_FROM].tag, my_name, datestring);
}
if (!wtmpf(buf, strlen(buf))) {
done(0);
}
savehdrs(buf, H_FROM);
/*
Copy to list in mail entry?
*/
if (flgt == 1 && argc > 1) {
aret = argc;
args = argv;
while (--aret > 0) {
snprintf(buf, bufsize, "%s %s\n", header[H_TO].tag, *++args);
if (!wtmpf(buf, strlen(buf))) {
done(0);
}
savehdrs(buf, H_TO);
}
}
flgf = 1; /* reset when first read of message body succeeds */
/*
Read mail message, allowing for lines of infinite
length. This is tricky, have to watch for newlines.
*/
saveint = setsig(SIGINT, savdead);
last1c = ' '; /* anything other than newline */
ttyf = isatty (fileno(stdin));
pushrest = 0;
/*
* scan header & save relevant info.
*/
cpy(&fromU, &fromUsize, my_name);
cpy(&fromS, &fromSsize, "");
input = stdin;
if (fstat(fileno(input), &sbuf) < 0) {
#ifdef EOVERFLOW
if (errno == EOVERFLOW) {
perror("stdin");
exit(1);
}
#endif
}
while ((n = getline (&line, &linesize, stdin)) > 0) {
last1c = line[n-1];
if (pushrest) {
if (!wtmpf(line,n)) {
done(0);
}
pushrest = (last1c != '\n');
continue;
}
pushrest = (last1c != '\n');
if ((hdrtyp = isheader (line, &ctf)) == FALSE) {
break;
}
flgf = 0;
switch (hdrtyp) {
case H_RVERS:
/* Are we dealing with a delivery report? */
/* dflag = 9 ==> do not return on failure */
dflag = 9;
Dout(pn, 0, "dflag = 9\n");
break;
case H_FROM:
if (!wtmpf(">", 1)) {
done(0);
}
/* note dropthru */
hdrtyp = H_FROM1;
case H_FROM1:
if (substr(line, "forwarded by") > -1) {
break;
}
pickFrom (line);
if (Rpath[0] != '\0')
concat(&Rpath, &Rpathsize, "!");
concat(&Rpath, &Rpathsize, fromS);
n = 0; /* don't copy remote from's into mesg. */
break;
case H_CTYPE:
/* suppress it: only generated if needed */
n = 0; /* suppress */
break;
case H_TCOPY:
/* Write out placeholder for later */
snprintf(buf, bufsize, "%s \n", header[H_TCOPY].tag);
if (!wtmpf(buf, strlen(buf))) {
done(0);
}
n = 0; /* suppress */
break;
case H_MTYPE:
if (flgm) {
/* suppress if message-type argument */
n = 0;
}
break;
case H_CONT:
if (oldn == 0) {
/* suppress continuation line also */
n = 0;
}
break;
}
oldn = n; /* remember if this line was suppressed */
if (n && !wtmpf(line,n)) {
done(0);
}
if (!n) savehdrs(line, hdrtyp);
}
if (Rpath != NULL && Rpath[0] != '\0')
concat(&Rpath, &Rpathsize, "!");
concat(&Rpath, &Rpathsize, fromU);
/* push out message type if so requested */
if (flgm) { /* message-type */
snprintf(buf, bufsize, "%s%s\n", header[H_MTYPE].tag, msgtype);
if (!wtmpf(buf, strlen(buf))) {
done(0);
}
}
if (n > bufsize) {
free(buf);
buf = smalloc(bufsize = n);
}
memcpy (buf, line, n);
if (n == 0 || (ttyf && !strncmp (buf, ".\n", 2)) ) {
if (flgf) {
/* no input */
return;
} else {
/*
* no content: put content-type
* only if explicitly present.
* Write out 'place-holders' only. (see below....)
*/
if ((hptr = hdrlines[H_CTYPE].head) !=
(struct hdrs *)NULL) {
snprintf(line, linesize, "%s \n", header[H_CTYPE].tag);
if (!wtmpf(line, strlen(line))) {
done(0);
}
}
goto wrapsend;
}
}
if (n == 1 && last1c == '\n') { /* blank line -- suppress */
n = getline (&buf, &bufsize, stdin);
if (n == 0 || (ttyf && !strncmp (buf, ".\n", 2)) ) {
/*
* no content: put content-type
* only if explicitly present.
* Write out 'place-holder' only. (see below....)
*/
if ((hptr = hdrlines[H_CTYPE].head) !=
(struct hdrs *)NULL) {
snprintf(line, linesize, "%s \n", header[H_CTYPE].tag);
if (!wtmpf(line, strlen(line))) {
done(0);
}
}
goto wrapsend;
}
}
if (debug > 0) {
buf[n] = '\0';
Dout(pn, 0, "header scan complete, readahead %d = \"%s\"\n", n, buf);
}
/*
* Write out H_CTYPE line. This is used only as
* placeholders in the tmp file. When the 'real' message is sent,
* the proper value will be put out by copylet().
*/
snprintf(line, linesize, "%s \n", header[H_CTYPE].tag);
if (!wtmpf(line, strlen(line))) {
done(0);
}
if (hdrlines[H_CTYPE].head == (struct hdrs *)NULL) {
savehdrs(line,H_CTYPE);
}
/* and a blank line */
if (!wtmpf("\n", 1)) {
done(0);
}
Dout(pn, 0, "header out completed\n");
pushrest = 0;
count = 0L;
/*
* Are we returning mail from a delivery failure of an old-style
* (SVR3.1 or SVR3.0) rmail? If so, we won't return THIS on failure
* [This line should occur as the FIRST non-blank non-header line]
*/
if (!strncmp("***** UNDELIVERABLE MAIL sent to",buf,32)) {
dflag = 9; /* 9 says do not return on failure */
Dout(pn, 0, "found old-style UNDELIVERABLE line. dflag = 9\n");
}
/* scan body of message */
while (n > 0) {
if (ttyf && !strcmp (buf, ".\n"))
break;
if (!binflg) {
binflg = !istext ((unsigned char *)buf, n);
}
if (!wtmpf(buf, n)) {
done(0);
}
count += n;
n = ttyf
? getline (&buf, &bufsize, stdin)
: fread (buf, 1, bufsize, stdin);
}
setsig(SIGINT, saveint);
wrapsend:
/*
* In order to use some of the subroutines that are used to
* read mail, the let array must be set up
*/
nlet = 1;
let[0].adr = 0;
let[1].adr = ftell(tmpf);
let[0].text = (binflg == 1 ? FALSE : TRUE);
Dout(pn, 0, "body copy complete, count %ld\n", count);
/*
* Modify value of H_CTYPE if necessary.
*/
if ((hptr = hdrlines[H_CTYPE].head) != (struct hdrs *)NULL) {
if (strlen(hptr->value) == 0)
strcpy(hptr->value, binflg ? "binary" : "text");
}
if (fclose(tmpf) == EOF) {
tmpf = NULL;
tmperr();
done(0);
}
tmpf = doopen(lettmp,"r+",E_TMP);
/* Do not send mail on SIGINT */
if (dflag == 2) {
done(0);
}
sendlist(&list, 0, 0);
done(0);
}
