+++ /dev/null
-
-/*
- * spost.c -- feed messages to sendmail
- *
- * This is a simpler, faster, replacement for "post" for use
- * when "sendmail" is the transport system.
- *
- * This code is Copyright (c) 2002, by the authors of nmh. See the
- * COPYRIGHT file in the root directory of the nmh distribution for
- * complete copyright information.
- */
-
-#include <h/mh.h>
-#include <signal.h>
-#include <h/addrsbr.h>
-#include <h/aliasbr.h>
-#include <h/dropsbr.h>
-#include <h/tws.h>
-#include <h/mts.h>
-#include <h/utils.h>
-
-#define MAX_SM_FIELD 1476 /* < largest hdr field sendmail will accept */
-#define FCCS 10 /* max number of fccs allowed */
-
-struct swit switches[] = {
-#define FILTSW 0
- { "filter filterfile", 0 },
-#define NFILTSW 1
- { "nofilter", 0 },
-#define REMVSW 2
- { "remove", 0 },
-#define NREMVSW 3
- { "noremove", 0 },
-#define VERBSW 4
- { "verbose", 0 },
-#define NVERBSW 5
- { "noverbose", 0 },
-#define WATCSW 6
- { "watch", 0 },
-#define NWATCSW 7
- { "nowatch", 0 },
-#define BACKSW 8
- { "backup", 0 },
-#define NBACKSW 9
- { "nobackup", 0 },
-#define ALIASW 10
- { "alias aliasfile", 0 },
-#define NALIASW 11
- { "noalias", 0 },
-#define WIDTHSW 12
- { "width columns", 0 },
-#define VERSIONSW 13
- { "version", 0 },
-#define HELPSW 14
- { "help", 0 },
-#define DEBUGSW 15
- { "debug", -5 },
-#define DISTSW 16
- { "dist", -4 }, /* interface from dist */
-#define WHOMSW 17
- { "whom", -4 }, /* interface from whom */
-#define PUSHSW 18 /* fork to sendmail then exit */
- { "push", -4 },
-#define NPUSHSW 19 /* exec sendmail */
- { "nopush", -6 },
-#define LIBSW 20
- { "library directory", -7 },
-#define ANNOSW 21
- { "idanno number", -6 },
- { NULL, 0 }
-};
-
-
-/* flags for headers->flags */
-#define HNOP 0x0000 /* just used to keep .set around */
-#define HBAD 0x0001 /* bad header - don't let it through */
-#define HADR 0x0002 /* header has an address field */
-#define HSUB 0x0004 /* Subject: header */
-#define HTRY 0x0008 /* try to send to addrs on header */
-#define HBCC 0x0010 /* don't output this header */
-/* #define HMNG 0x0020 */ /* munge this header */
-#define HNGR 0x0040 /* no groups allowed in this header */
-#define HFCC 0x0080 /* FCC: type header */
-#define HNIL 0x0100 /* okay for this header not to have addrs */
-#define HIGN 0x0200 /* ignore this header */
-
-/* flags for headers->set */
-#define MFRM 0x0001 /* we've seen a From: */
-#define MDAT 0x0002 /* we've seen a Date: */
-#define MRFM 0x0004 /* we've seen a Resent-From: */
-#define MVIS 0x0008 /* we've seen sighted addrs */
-#define MINV 0x0010 /* we've seen blind addrs */
-#define MRDT 0x0020 /* we've seen a Resent-Date: */
-
-struct headers {
- char *value;
- unsigned int flags;
- unsigned int set;
-};
-
-
-static struct headers NHeaders[] = {
- { "Return-Path", HBAD, 0 },
- { "Received", HBAD, 0 },
- { "Reply-To", HADR|HNGR, 0 },
- { "From", HADR|HNGR, MFRM },
- { "Sender", HADR|HBAD, 0 },
- { "Date", HNOP, MDAT },
- { "Subject", HSUB, 0 },
- { "To", HADR|HTRY, MVIS },
- { "cc", HADR|HTRY, MVIS },
- { "Bcc", HADR|HTRY|HBCC|HNIL, MINV },
- { "Message-Id", HBAD, 0 },
- { "Fcc", HFCC, 0 },
- { "Envelope-From",HIGN, 0 },
- { NULL, 0, 0 }
-};
-
-static struct headers RHeaders[] = {
- { "Resent-Reply-To", HADR|HNGR, 0 },
- { "Resent-From", HADR|HNGR, MRFM },
- { "Resent-Sender", HADR|HBAD, 0 },
- { "Resent-Date", HNOP, MRDT },
- { "Resent-Subject", HSUB, 0 },
- { "Resent-To", HADR|HTRY, MVIS },
- { "Resent-cc", HADR|HTRY, MVIS },
- { "Resent-Bcc", HADR|HTRY|HBCC, MINV },
- { "Resent-Message-Id", HBAD, 0 },
- { "Resent-Fcc", HFCC, 0 },
- { "Reply-To", HADR, 0 },
- { "Fcc", HIGN, 0 },
- { "Envelope-From", HIGN, 0 },
- { NULL, 0, 0 }
-};
-
-
-static short fccind = 0; /* index into fccfold[] */
-
-static int badmsg = 0; /* message has bad semantics */
-static int verbose = 0; /* spell it out */
-static int debug = 0; /* debugging post */
-static int rmflg = 1; /* remove temporary file when done */
-static int watch = 0; /* watch the delivery process */
-static int backflg = 0; /* rename input file as *.bak when done */
-static int whomflg = 0; /* if just checking addresses */
-static int pushflg = 0; /* if going to fork to sendmail */
-static int aliasflg = -1; /* if going to process aliases */
-static int outputlinelen=72;
-
-static unsigned msgflags = 0; /* what we've seen */
-
-static enum {
- normal, resent
-} msgstate = normal;
-
-static char tmpfil[] = "/tmp/pstXXXXXX";
-
-static char from[BUFSIZ]; /* my network address */
-static char signature[BUFSIZ]; /* my signature */
-static char *filter = NULL; /* the filter for BCC'ing */
-static char *subject = NULL; /* the subject field for BCC'ing */
-static char *fccfold[FCCS]; /* foldernames for FCC'ing */
-
-static struct headers *hdrtab; /* table for the message we're doing */
-static FILE *out; /* output (temp) file */
-
-extern char *sendmail;
-
-/*
- * external prototypes
- */
-extern char *getfullname (void);
-extern char *getusername (void);
-
-/*
- * static prototypes
- */
-static void putfmt (char *, char *, FILE *);
-static void start_headers (void);
-static void finish_headers (FILE *);
-static int get_header (char *, struct headers *);
-static void putadr (char *, struct mailname *);
-static int putone (char *, int, int);
-static void insert_fcc (struct headers *, unsigned char *);
-static void file (char *);
-static void fcc (char *, char *);
-
-#if 0
-static void die (char *, char *, ...);
-static void make_bcc_file (void);
-#endif
-
-
-int
-main (int argc, char **argv)
-{
- int state, i, pid, compnum;
- char *cp, *msg = NULL, **argp, **arguments;
- char *sargv[16], buf[BUFSIZ], name[NAMESZ];
- FILE *in;
-
-#ifdef LOCALE
- setlocale(LC_ALL, "");
-#endif
- invo_name = r1bindex (argv[0], '/');
-
- /* foil search of user profile/context */
- if (context_foil (NULL) == -1)
- done (1);
-
- mts_init (invo_name);
- arguments = getarguments (invo_name, argc, argv, 0);
- argp = arguments;
-
- while ((cp = *argp++)) {
- if (*cp == '-') {
- switch (smatch (++cp, switches)) {
- case AMBIGSW:
- ambigsw (cp, switches);
- done (1);
- case UNKWNSW:
- adios (NULL, "-%s unknown", cp);
-
- case HELPSW:
- snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
- print_help (buf, switches, 1);
- done (0);
- case VERSIONSW:
- print_version(invo_name);
- done (0);
-
- case DEBUGSW:
- debug++;
- continue;
-
- case DISTSW:
- msgstate = resent;
- continue;
-
- case WHOMSW:
- whomflg++;
- continue;
-
- case FILTSW:
- if (!(filter = *argp++) || *filter == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- continue;
- case NFILTSW:
- filter = NULL;
- continue;
-
- case REMVSW:
- rmflg++;
- continue;
- case NREMVSW:
- rmflg = 0;
- continue;
-
- case BACKSW:
- backflg++;
- continue;
- case NBACKSW:
- backflg = 0;
- continue;
-
- case VERBSW:
- verbose++;
- continue;
- case NVERBSW:
- verbose = 0;
- continue;
-
- case WATCSW:
- watch++;
- continue;
- case NWATCSW:
- watch = 0;
- continue;
-
- case PUSHSW:
- pushflg++;
- continue;
- case NPUSHSW:
- pushflg = 0;
- continue;
-
- case ALIASW:
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- if (aliasflg < 0)
- alias (AliasFile);/* load default aka's */
- aliasflg = 1;
- if ((state = alias(cp)) != AK_OK)
- adios (NULL, "aliasing error in file %s - %s",
- cp, akerror(state) );
- continue;
- case NALIASW:
- aliasflg = 0;
- continue;
-
- case WIDTHSW:
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- outputlinelen = atoi (cp);
- if (outputlinelen <= 10)
- outputlinelen = 72;
- continue;
-
- case LIBSW:
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- /* create a minimal context */
- if (context_foil (cp) == -1)
- done(1);
- continue;
-
- case ANNOSW:
- /* -idanno switch ignored */
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- continue;
- }
- }
- if (msg)
- adios (NULL, "only one message at a time!");
- else
- msg = cp;
- }
-
- if (aliasflg < 0)
- alias (AliasFile); /* load default aka's */
-
- if (!msg)
- adios (NULL, "usage: %s [switches] file", invo_name);
-
- if ((in = fopen (msg, "r")) == NULL)
- adios (msg, "unable to open");
-
- start_headers ();
- if (debug) {
- verbose++;
- out = stdout;
- }
- else {
- if ((out = fdopen( mkstemp (tmpfil), "w" )) == NULL )
- adios (tmpfil, "unable to create");
- }
-
- hdrtab = (msgstate == normal) ? NHeaders : RHeaders;
-
- for (compnum = 1, state = FLD;;) {
- switch (state = m_getfld (state, name, buf, sizeof(buf), in)) {
- case FLD:
- compnum++;
- putfmt (name, buf, out);
- continue;
-
- case FLDPLUS:
- compnum++;
- cp = add (buf, cp);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- cp = add (buf, cp);
- }
- putfmt (name, cp, out);
- free (cp);
- continue;
-
- case BODY:
- finish_headers (out);
- fprintf (out, "\n%s", buf);
- if(whomflg == 0)
- while (state == BODY) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- fputs (buf, out);
- }
- break;
-
- case FILEEOF:
- finish_headers (out);
- break;
-
- case LENERR:
- case FMTERR:
- adios (NULL, "message format error in component #%d",
- compnum);
-
- default:
- adios (NULL, "getfld() returned %d", state);
- }
- break;
- }
-
- fclose (in);
- if (backflg && !whomflg) {
- strncpy (buf, m_backup (msg), sizeof(buf));
- if (rename (msg, buf) == NOTOK)
- advise (buf, "unable to rename %s to", msg);
- }
-
- if (debug) {
- done (0);
- }
- else
- fclose (out);
-
- file (tmpfil);
-
- /*
- * re-open the temp file, unlink it and exec sendmail, giving it
- * the msg temp file as std in.
- */
- if ( freopen( tmpfil, "r", stdin) == NULL)
- adios (tmpfil, "can't reopen for sendmail");
- if (rmflg)
- unlink (tmpfil);
-
- argp = sargv;
- *argp++ = "send-mail";
- *argp++ = "-m"; /* send to me too */
- *argp++ = "-t"; /* read msg for recipients */
- *argp++ = "-i"; /* don't stop on "." */
- if (whomflg)
- *argp++ = "-bv";
- if (watch || verbose)
- *argp++ = "-v";
- *argp = NULL;
-
- if (pushflg && !(watch || verbose)) {
- /* fork to a child to run sendmail */
- for (i=0; (pid = vfork()) == NOTOK && i < 5; i++)
- sleep(5);
- switch (pid) {
- case NOTOK:
- fprintf (verbose ? stdout : stderr, "%s: can't fork to %s\n",
- invo_name, sendmail);
- exit(-1);
- case OK:
- /* we're the child .. */
- break;
- default:
- exit(0);
- }
- }
- execv ( sendmail, sargv);
- adios ( sendmail, "can't exec");
- return 0; /* dead code to satisfy the compiler */
-}
-
-/* DRAFT GENERATION */
-
-static void
-putfmt (char *name, char *str, FILE *out)
-{
- int i;
- char *cp, *pp;
- struct headers *hdr;
-
- while (*str == ' ' || *str == '\t')
- str++;
-
- if ((i = get_header (name, hdrtab)) == NOTOK) {
- fprintf (out, "%s: %s", name, str);
- return;
- }
-
- hdr = &hdrtab[i];
- if (hdr->flags & HIGN)
- return;
- if (hdr->flags & HBAD) {
- advise (NULL, "illegal header line -- %s:", name);
- badmsg++;
- return;
- }
- msgflags |= hdr->set;
-
- if (hdr->flags & HSUB)
- subject = subject ? add (str, add ("\t", subject)) : getcpy (str);
-
- if (hdr->flags & HFCC) {
- if ((cp = strrchr(str, '\n')))
- *cp = 0;
- for (cp = pp = str; (cp = strchr(pp, ',')); pp = cp) {
- *cp++ = 0;
- insert_fcc (hdr, pp);
- }
- insert_fcc (hdr, pp);
- return;
- }
-
-#ifdef notdef
- if (hdr->flags & HBCC) {
- insert_bcc(str);
- return;
- }
-#endif /* notdef */
-
- if (*str != '\n' && *str != '\0') {
- if (aliasflg && hdr->flags & HTRY) {
- /* this header contains address(es) that we have to do
- * alias expansion on. Because of the saved state in
- * getname we have to put all the addresses into a list.
- * We then let putadr munch on that list, possibly
- * expanding aliases.
- */
- register struct mailname *f = 0;
- register struct mailname *mp = 0;
-
- while ((cp = getname(str))) {
- mp = getm( cp, NULL, 0, AD_HOST, NULL);
- if (f == 0) {
- f = mp;
- mp->m_next = mp;
- } else {
- mp->m_next = f->m_next;
- f->m_next = mp;
- f = mp;
- }
- }
- f = mp->m_next; mp->m_next = 0;
- putadr( name, f );
- } else {
- /* The author(s) of spost decided that alias substitution wasn't
- necessary for the non-HTRY headers. Unfortunately, one of those
- headers is "From:", and having alias substitution work on that is
- extremely useful for someone with a lot of POP3 email accounts or
- aliases. post supports aliasing of "From:"...
-
- Since "From:"-processing is incompletely implemented in this
- unsupported and undocumented spost backend, I'm not going to take
- the time to implement my new draft-From:-based email address
- masquerading. If I do ever implement it here, I'd almost
- certainly want to implement "From:" line alias processing as
- well. -- Dan Harkless <dan-nmh@dilvish.speed.net> */
- fprintf (out, "%s: %s", name, str );
- }
- }
-}
-
-
-static void
-start_headers (void)
-{
- char *cp;
- char sigbuf[BUFSIZ];
-
- strncpy(from, getusername(), sizeof(from));
-
- if ((cp = getfullname ()) && *cp) {
- strncpy (sigbuf, cp, sizeof(sigbuf));
- snprintf (signature, sizeof(signature), "%s <%s>", sigbuf, from);
- }
- else
- snprintf (signature, sizeof(signature), "%s", from);
-}
-
-
-static void
-finish_headers (FILE *out)
-{
- switch (msgstate) {
- case normal:
- if (!(msgflags & MDAT))
- fprintf (out, "Date: %s\n", dtimenow (0));
-
- if (!(msgflags & MFRM))
- fprintf (out, "From: %s\n", signature);
-
-#ifdef notdef
- if (!(msgflags & MVIS))
- fprintf (out, "Bcc: Blind Distribution List: ;\n");
-#endif /* notdef */
- break;
-
- case resent:
- if (!(msgflags & MRDT))
- fprintf (out, "Resent-Date: %s\n", dtimenow(0));
- if (!(msgflags & MRFM))
- /* Construct a Resent-From: header. */
- fprintf (out, "Resent-From: %s\n", signature);
-#ifdef notdef
- if (!(msgflags & MVIS))
- fprintf (out, "Resent-Bcc: Blind Re-Distribution List: ;\n");
-#endif /* notdef */
- break;
- }
-
- if (badmsg)
- adios (NULL, "re-format message and try again");
-}
-
-
-static int
-get_header (char *header, struct headers *table)
-{
- struct headers *h;
-
- for (h = table; h->value; h++)
- if (!mh_strcasecmp (header, h->value))
- return (h - table);
-
- return NOTOK;
-}
-
-
-/*
- * output the address list for header "name". The address list
- * is a linked list of mailname structs. "nl" points to the head
- * of the list. Alias substitution should be done on nl.
- */
-static void
-putadr (char *name, struct mailname *nl)
-{
- register struct mailname *mp, *mp2;
- register int linepos;
- register char *cp;
- int namelen;
-
- fprintf (out, "%s: ", name);
- namelen = strlen(name) + 2;
- linepos = namelen;
-
- for (mp = nl; mp; ) {
- if (linepos > MAX_SM_FIELD) {
- fprintf (out, "\n%s: ", name);
- linepos = namelen;
- }
- if (mp->m_nohost) {
- /* a local name - see if it's an alias */
- cp = akvalue(mp->m_mbox);
- if (cp == mp->m_mbox)
- /* wasn't an alias - use what the user typed */
- linepos = putone( mp->m_text, linepos, namelen );
- else
- /* an alias - expand it */
- while ((cp = getname(cp))) {
- if (linepos > MAX_SM_FIELD) {
- fprintf (out, "\n%s: ", name);
- linepos = namelen;
- }
- mp2 = getm( cp, NULL, 0, AD_HOST, NULL);
- if (akvisible()) {
- mp2->m_pers = getcpy(mp->m_mbox);
- linepos = putone( adrformat(mp2), linepos, namelen );
- } else {
- linepos = putone( mp2->m_text, linepos, namelen );
- }
- mnfree( mp2 );
- }
- } else {
- /* not a local name - use what the user typed */
- linepos = putone( mp->m_text, linepos, namelen );
- }
- mp2 = mp;
- mp = mp->m_next;
- mnfree( mp2 );
- }
- putc( '\n', out );
-}
-
-static int
-putone (char *adr, int pos, int indent)
-{
- register int len;
- static int linepos;
-
- len = strlen( adr );
- if (pos == indent)
- linepos = pos;
- else if ( linepos+len > outputlinelen ) {
- fprintf ( out, ",\n%*s", indent, "");
- linepos = indent;
- pos += indent + 2;
- }
- else {
- fputs( ", ", out );
- linepos += 2;
- pos += 2;
- }
- fputs( adr, out );
-
- linepos += len;
- return (pos+len);
-}
-
-
-static void
-insert_fcc (struct headers *hdr, unsigned char *pp)
-{
- unsigned char *cp;
-
- for (cp = pp; isspace (*cp); cp++)
- continue;
- for (pp += strlen (pp) - 1; pp > cp && isspace (*pp); pp--)
- continue;
- if (pp >= cp)
- *++pp = 0;
- if (*cp == 0)
- return;
-
- if (fccind >= FCCS)
- adios (NULL, "too many %ss", hdr->value);
- fccfold[fccind++] = getcpy (cp);
-}
-
-#if 0
-/* BCC GENERATION */
-
-static void
-make_bcc_file (void)
-{
- pid_t child_id;
- int fd, i, status;
- char *vec[6];
- FILE * in, *out;
-
- fd = mkstemp(bccfil);
- if (fd == -1 || (out = fdopen(fd, "w")) == NULL)
- adios (bccfil, "unable to create");
- chmod (bccfil, 0600);
-
- fprintf (out, "Date: %s\n", dtimenow (0));
- if (!(msgflags & MFRM))
- /* Construct a From: header. */
- fprintf (out, "From: %s\n", signature);
- if (subject)
- fprintf (out, "Subject: %s", subject);
- fprintf (out, "BCC:\n\n------- Blind-Carbon-Copy\n\n");
- fflush (out);
-
- if (filter == NULL) {
- if ((fd = open (tmpfil, O_RDONLY)) == NOTOK)
- adios (NULL, "unable to re-open");
- cpydgst (fd, fileno (out), tmpfil, bccfil);
- close (fd);
- }
- else {
- vec[0] = r1bindex (mhlproc, '/');
-
- for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
- sleep (5);
- switch (child_id) {
- case NOTOK:
- adios ("vfork", "unable to");
-
- case OK:
- dup2 (fileno (out), 1);
-
- i = 1;
- vec[i++] = "-forward";
- vec[i++] = "-form";
- vec[i++] = filter;
- vec[i++] = tmpfil;
- vec[i] = NULL;
-
- execvp (mhlproc, vec);
- adios (mhlproc, "unable to exec");
-
- default:
- if (status = pidwait(child_id, OK))
- admonish (NULL, "%s lost (status=0%o)", vec[0], status);
- break;
- }
- }
-
- fseek (out, 0L, SEEK_END);
- fprintf (out, "\n------- End of Blind-Carbon-Copy\n");
- fclose (out);
-}
-#endif /* if 0 */
-
-/* FCC INTERACTION */
-
-static void
-file (char *path)
-{
- int i;
-
- if (fccind == 0)
- return;
-
- for (i = 0; i < fccind; i++)
- if (whomflg)
- printf ("Fcc: %s\n", fccfold[i]);
- else
- fcc (path, fccfold[i]);
-}
-
-
-static void
-fcc (char *file, char *folder)
-{
- pid_t child_id;
- int i, status;
- char fold[BUFSIZ];
-
- if (verbose)
- printf ("%sFcc: %s\n", msgstate == resent ? "Resent-" : "", folder);
- fflush (stdout);
-
- for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
- sleep (5);
- switch (child_id) {
- case NOTOK:
- if (!verbose)
- fprintf (stderr, " %sFcc %s: ",
- msgstate == resent ? "Resent-" : "", folder);
- fprintf (verbose ? stdout : stderr, "no forks, so not ok\n");
- break;
-
- case OK:
- snprintf (fold, sizeof(fold), "%s%s",
- *folder == '+' || *folder == '@' ? "" : "+", folder);
- execlp (fileproc, r1bindex (fileproc, '/'),
- "-link", "-file", file, fold, NULL);
- _exit (-1);
-
- default:
- if ((status = pidwait(child_id, OK))) {
- if (!verbose)
- fprintf (stderr, " %sFcc %s: ",
- msgstate == resent ? "Resent-" : "", folder);
- fprintf (verbose ? stdout : stderr,
- " errored (0%o)\n", status);
- }
- }
-
- fflush (stdout);
-}
-
-
-#if 0
-
-/*
- * TERMINATION
- */
-
-static void
-die (char *what, char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- advertise (what, NULL, fmt, ap);
- va_end(ap);
-
- done (1);
-}
-#endif
projects / mmh / commitdiff