X-Git-Url: http://git.marmaro.de/?p=mmh;a=blobdiff_plain;f=uip%2Fspost.c;h=48f97978dbd3319f66df156cd91c494a0687c2d4;hp=76478c87a93a49d91f9c5836b22061cd0c62bf1a;hb=eda302e1f049eae6b429a12c5526600eea6a02e1;hpb=017a82124bf2ea39ced5aa4c8f969c18b3c2fb90 diff --git a/uip/spost.c b/uip/spost.c index 76478c8..48f9797 100644 --- a/uip/spost.c +++ b/uip/spost.c @@ -1,860 +1,673 @@ - /* - * spost.c -- feed messages to sendmail - * - * This is a simpler, faster, replacement for "post" for use - * when "sendmail" is the transport system. - * - * $Id$ - */ +** 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 #include #include #include #include -#include -#include - -#define uptolow(c) ((isalpha(c) && isupper (c)) ? tolower (c) : c) - -#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 FRMTSW 2 - { "format", 0 }, -#define NFRMTSW 3 - { "noformat", 0 }, -#define REMVSW 4 - { "remove", 0 }, -#define NREMVSW 5 - { "noremove", 0 }, -#define VERBSW 6 - { "verbose", 0 }, -#define NVERBSW 7 - { "noverbose", 0 }, -#define WATCSW 8 - { "watch", 0 }, -#define NWATCSW 9 - { "nowatch", 0 }, -#define BACKSW 10 - { "backup", 0 }, -#define NBACKSW 11 - { "nobackup", 0 }, -#define ALIASW 12 - { "alias aliasfile", 0 }, -#define NALIASW 13 - { "noalias", 0 }, -#define WIDTHSW 14 - { "width columns", 0 }, -#define VERSIONSW 15 - { "version", 0 }, -#define HELPSW 16 - { "help", 0 }, -#define DEBUGSW 17 - { "debug", -5 }, -#define DISTSW 18 - { "dist", -4 }, /* interface from dist */ -#define CHKSW 19 - { "check", -5 }, /* interface from whom */ -#define NCHKSW 20 - { "nocheck", -7 }, /* interface from whom */ -#define WHOMSW 21 - { "whom", -4 }, /* interface from whom */ -#define PUSHSW 22 /* fork to sendmail then exit */ - { "push", -4 }, -#define NPUSHSW 23 /* exec sendmail */ - { "nopush", -6 }, -#define LIBSW 24 - { "library directory", -7 }, -#define ANNOSW 25 - { "idanno number", -6 }, - { NULL, 0 } +#include +#include +#include +#include +#include + +#define MAX_SM_FIELD 1476 /* < largest hdr field sendmail will accept */ + +static struct swit switches[] = { +#define VERBSW 0 + { "verbose", 0 }, +#define NVERBSW 1 + { "noverbose", 2 }, +#define VERSIONSW 2 + { "Version", 0 }, +#define HELPSW 3 + { "help", 0 }, +#define DEBUGSW 4 + { "debug", -5 }, +#define DISTSW 5 + { "dist", -4 }, /* interface from dist */ + { 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 /* mung 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 */ +#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 HFCC 0x0020 /* FCC: type header */ +#define HIGN 0x0040 /* 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: */ +#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: */ +#define MFMM 0x0040 /* The Mail is From a Alternative-Mailbox Addresse */ struct headers { - char *value; - unsigned int flags; - unsigned int set; + 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 }, - { NULL, 0, 0 } + { "Return-Path", HBAD, 0 }, + { "Received", HBAD, 0 }, + { "Reply-To", HADR, 0 }, + { "From", HADR, MFRM }, + { "Sender", HADR|HBAD, 0 }, + { "Date", HNOP, MDAT }, + { "Subject", HSUB, 0 }, + { "To", HADR|HTRY, MVIS }, + { "Cc", HADR|HTRY, MVIS }, + { "Bcc", HADR|HTRY|HBCC, 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 }, - { NULL, 0, 0 } + { "Resent-Reply-To", HADR, 0 }, + { "Resent-From", HADR, 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; +static int verbose = 0; +static int debug = 0; +static int aliasflg = 0; /* if going to process aliases */ -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 unsigned msgflags = 0; /* what we've seen */ static enum { - normal, resent + 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 char *tmpfil; -static struct headers *hdrtab; /* table for the message we're doing */ -static FILE *out; /* output (temp) file */ +static char *subject = NULL; /* the subject field for BCC'ing */ +static char fccs[BUFSIZ] = ""; +struct mailname *bccs = NULL; /* list of the bcc recipients */ -extern char *sendmail; +static struct headers *hdrtab; /* table for the message we're doing */ +static FILE *out; /* output (temp) file */ /* - * 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 *, char *); -static void file (char *); -static void fcc (char *, char *); - -#if 0 -static void die (char *, char *, ...); -static void make_bcc_file (void); -#endif +** static prototypes +*/ +static void putfmt(char *, char *, FILE *); +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 process_fcc(char *); +static void fcc(char *, char *); +static void process_bccs(char *); int -main (int argc, char **argv) +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 (1); - case VERSIONSW: - print_version(invo_name); - done (1); - - 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 { -#ifdef HAVE_MKSTEMP - if ((out = fdopen( mkstemp (tmpfil), "w" )) == NULL ) - adios (tmpfil, "unable to create"); -#else - mktemp (tmpfil); - if ((out = fopen (tmpfil, "w")) == NULL) - adios (tmpfil, "unable to create"); - chmod (tmpfil, 0600); -#endif - } - - 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); + int state, compnum; + char *cp, *msg = NULL, **argp, **arguments; + char *sargv[16], buf[BUFSIZ], name[NAMESZ]; + FILE *in; + + setlocale(LC_ALL, ""); + invo_name = mhbasename(argv[0]); + + context_read(); + + arguments = getarguments(invo_name, argc, argv, 0); + argp = arguments; + + while ((cp = *argp++)) { + if (*cp == '-') { + switch (smatch(++cp, switches)) { + case AMBIGSW: + ambigsw(cp, switches); + exit(EX_USAGE); + case UNKWNSW: + adios(EX_USAGE, NULL, "-%s unknown", cp); + + case HELPSW: + snprintf(buf, sizeof(buf), + "%s [switches] file", + invo_name); + print_help(buf, switches, 1); + exit(argc == 2 ? EX_OK : EX_USAGE); + case VERSIONSW: + print_version(invo_name); + exit(argc == 2 ? EX_OK : EX_USAGE); + + case DEBUGSW: + debug++; + continue; + + case DISTSW: + msgstate = resent; + continue; + + case VERBSW: + verbose++; + continue; + case NVERBSW: + verbose = 0; + continue; + } } - 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; + if (msg) + adios(EX_USAGE, NULL, "only one message at a time!"); + else + msg = cp; + } - case FILEEOF: - finish_headers (out); - break; + if (!msg) + adios(EX_USAGE, NULL, "usage: %s [switches] file", invo_name); + + if ((in = fopen(msg, "r")) == NULL) + adios(EX_IOERR, msg, "unable to open"); + + if (debug) { + verbose++; + out = stdout; + } else { + tmpfil = getcpy(m_mktemp2("/tmp/", invo_name, NULL, &out)); + } - 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 .. */ + /* check for "Aliasfile:" profile entry */ + if ((cp = context_find("Aliasfile"))) { + char *dp, **ap; + + aliasflg = 1; + for (ap=brkstring(dp=getcpy(cp), " ", "\n"); ap && *ap; + ap++) { + if ((state = alias(etcpath(*ap))) != AK_OK) { + adios(EX_IOERR, NULL, "aliasing error in file %s: %s", + *ap, akerror(state)); + } + } + } + + + 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); + 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(EX_DATAERR, NULL, "message format error in component #%d", + compnum); + + default: + adios(EX_SOFTWARE, NULL, "getfld() returned %d", state); + } break; - default: - exit(0); } - } - execv ( sendmail, sargv); - adios ( sendmail, "can't exec"); - return 0; /* dead code to satisfy the compiler */ -} + fclose(in); -/* DRAFT GENERATION */ + if (debug) { + /* stop here */ + exit(EX_OK); + } -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; + fclose(out); + + /* process Fcc */ + if (*fccs) { + fcc(tmpfil, fccs); + } + + if (bccs) { + process_bccs(tmpfil); + if (!(msgflags & MVIS)) { + /* only Bcc rcpts: we're finished here */ + unlink(tmpfil); + exit(EX_OK); } - } - 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 */ - fprintf (out, "%s: %s", name, str ); - } - } + } + + /* + ** re-open the temp file, unlink it and exec sendmail, giving it + ** the msg temp file as std in. + */ + if (!freopen(tmpfil, "r", stdin)) { + adios(EX_IOERR, tmpfil, "can't reopen for sendmail"); + } + 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 (verbose) { + *argp++ = "-v"; + } + *argp = NULL; + execv(sendmail, sargv); + adios(EX_OSERR, sendmail, "can't exec"); + return -1; } +/* DRAFT GENERATION */ + static void -start_headers (void) +putfmt(char *name, char *str, FILE *out) { - char *cp; - char sigbuf[BUFSIZ]; + int i; + char *cp; + struct headers *hdr; - strncpy(from, getusername(), sizeof(from)); + /* remove leading whitespace */ + while (*str==' ' || *str=='\t') { + str++; + } - if ((cp = getfullname ()) && *cp) { - strncpy (sigbuf, cp, sizeof(sigbuf)); - snprintf (signature, sizeof(signature), "%s <%s>", sigbuf, from); - } - else - snprintf (signature, sizeof(signature), "%s", from); -} + if ((i = get_header(name, hdrtab)) == NOTOK) { + /* no header we would care for */ + if (mh_strcasecmp(name, attach_hdr)!=0 && + mh_strcasecmp(name, sign_hdr)!=0 && + mh_strcasecmp(name, enc_hdr)!=0) { + /* push it through */ + fprintf(out, "%s: %s", name, str); + } + return; + } + /* it's one of the interesting headers */ + hdr = &hdrtab[i]; + if (hdr->flags & HIGN || strcmp(str, "\n")==0) { + return; + } -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, "Sender: %s\n", from); - else - 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) - fprintf (out, "Resent-Sender: %s\n", from); - else - 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"); -} + if (hdr->flags & HBAD) { + advise(NULL, "illegal header line -- %s:", name); + badmsg++; + return; + } + msgflags |= hdr->set; -static int -get_header (char *header, struct headers *table) -{ - struct headers *h; + if (hdr->flags & HFCC) { + process_fcc(str); + return; + } + + if (hdr->flags & HBCC) { + struct mailname *mp = NULL; + + /* Create list of Bcc addrs. */ + while ((cp = getname(str))) { + mp = getm(cp, NULL, 0, AD_HOST, NULL); + mp->m_next = bccs; /* push */ + bccs = mp; + } + return; + } - for (h = table; h->value; h++) - if (!strcasecmp (header, h->value)) - return (h - table); + 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. + **/ + struct mailname *f = NULL; + struct mailname *mp = NULL; + + while ((cp = getname(str))) { + mp = getm(cp, NULL, 0, AD_HOST, NULL); + if (!f) { + 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 = NULL; + /* Now munch on the list, possibly expanding aliases */ + putadr(name, f); + return; + } + + /* + ** 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 + */ + /* + ** Although there is no masquerading anymore in mmh, we might want + ** to have aliasing of From: addresses. Think about it. + ** -- meillo@marmaro.de 2012-02 + */ + + if (hdr->set & MFRM) { + + struct mailname *mp = NULL; + + /* This is need because the addresse parser hold global state */ + ismymbox(NULL); + + while ((cp = getname(str)) != NULL) { + mp = getm(cp, NULL, 0, AD_NAME, NULL); + if (ismymbox(mp)) { + msgflags |= MFMM; + } + } + } - return NOTOK; + if (hdr->flags & HSUB) { + subject = getcpy(str); + } + fprintf(out, "%s: %s", name, str); } /* - * 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. - */ +** Add yet missing headers. +*/ static void -putadr (char *name, struct mailname *nl) +finish_headers(FILE *out) { - 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 ); + char *cp; + char from[BUFSIZ]; /* my network address */ + char signature[BUFSIZ]; /* my signature */ + char *resentstr = (msgstate == resent) ? "Resent-" : ""; + + if (!(msgflags & MDAT)) { + fprintf(out, "%sDate: %s\n", resentstr, dtimenow()); + } + + if ((cp = context_find("Default-From")) != NULL) { + snprintf(signature, sizeof(signature), "%s", cp); + } else { + snprintf(from, sizeof(from), "%s@%s", getusername(), LocalName()); + if ((cp = getfullname()) && *cp) { + snprintf(signature, sizeof(signature), "%s <%s>", cp, from); + } else { + snprintf(signature, sizeof(signature), "%s", from); } + } + if (!(msgflags & MFRM)) { + fprintf(out, "%sFrom: %s\n", resentstr, signature); } 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 ); + /* + ** Add a Sender: header because the From: header could + ** be fake or contain multiple addresses. + */ + if (!(msgflags & MFMM)) { + fprintf(out, "%sSender: %s\n", resentstr, signature); + } + } + if (!(msgflags & MVIS)) { + fprintf(out, "%sBcc: undisclosed-recipients:;\n", resentstr); + } + if (badmsg) { + unlink(tmpfil); + adios(EX_DATAERR, NULL, "re-format message and try again"); + } } + +/* +** Return index of the requested header in the table, or NOTOK if missing. +*/ static int -putone (char *adr, int pos, int indent) +get_header(char *header, struct headers *table) { - 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); + struct headers *h; + + for (h=table; h->value; h++) { + if (mh_strcasecmp(header, h->value)==0) { + 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 -insert_fcc (struct headers *hdr, char *pp) +putadr(char *name, struct mailname *nl) { - 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); + struct mailname *mp, *mp2; + int linepos; + 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); } -#if 0 -/* BCC GENERATION */ - -static void -make_bcc_file (void) +static int +putone(char *adr, int pos, int indent) { - pid_t child_id; - int fd, i, status; - char *vec[6]; - FILE * in, *out; - - mktemp (bccfil); - if ((out = fopen (bccfil, "w")) == NULL) - adios (bccfil, "unable to create"); - chmod (bccfil, 0600); - - fprintf (out, "Date: %s\n", dtimenow (0)); - 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; + 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); - fseek (out, 0L, SEEK_END); - fprintf (out, "\n------- End of Blind-Carbon-Copy\n"); - fclose (out); + linepos += len; + return (pos+len); } -#endif /* if 0 */ -/* FCC INTERACTION */ static void -file (char *path) +process_fcc(char *str) { - int i; + char *cp, *pp; + int state = 0; - if (fccind == 0) - return; - - for (i = 0; i < fccind; i++) - if (whomflg) - printf ("Fcc: %s\n", fccfold[i]); - else - fcc (path, fccfold[i]); + if (strlen(str)+strlen(fccs) > sizeof fccs /2) { + adios(EX_DATAERR, NULL, "Too much Fcc data"); + } + /* todo: better have three states: SEPARATOR, PLUS, WORD */ + for (cp=pp=str; *cp; cp++) { + switch (*cp) { + case ' ': + case '\t': + case '\n': + case ',': + if (state != 0) { + state = 0; + *cp = '\0'; + if (*pp=='+' || *pp=='@') { + strcat(fccs, " "); + } else { + strcat(fccs, " +"); + } + strcat(fccs, pp); + } + break; + default: + if (state == 0) { + state = 1; + pp = cp; + } + break; + } + } } static void -fcc (char *file, char *folder) +fcc(char *file, char *folders) { - 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); -} + int status; + char cmd[BUFSIZ]; + if (verbose) { + printf("%sFcc: %s\n", msgstate == resent ? "Resent-" : "", + folders); + fflush(stdout); + } + if (100+strlen(file)+strlen(folders) > sizeof cmd) { + adios(EX_DATAERR, NULL, "Too much Fcc data"); + } + /* hack: read from /dev/null and refile(1) won't question us */ + snprintf(cmd, sizeof cmd, "m_next) { + bccdraft = getcpy(m_mktemp2("/tmp/", invo_name, NULL, &out)); + fprintf(out, "To: %s\n", mp->m_text); + fprintf(out, "Subject: [BCC] %s", subject ? subject : ""); + fprintf(out, "%s: %s\n", attach_hdr, origmsg); + fprintf(out, "------------\n"); + fclose(out); + + if (execprogl("send", "send", bccdraft, (char *)NULL) != 0) { + admonish(invo_name, "Problems to send Bcc to %s", + mp->m_text); + unlink(bccdraft); + } + } } -#endif