+++ /dev/null
-/*
-** replsbr.c -- routines to help repl along...
-**
-** 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 <h/addrsbr.h>
-#include <h/fmt_scan.h>
-#include <h/utils.h>
-#include <sys/file.h> /* L_SET */
-#include <errno.h>
-
-extern short ccto; /* from repl.c */
-extern short cccc;
-extern short ccme;
-extern short querysw;
-
-static int dftype=0;
-
-static char *badaddrs = NULL;
-static char *dfhost = NULL;
-
-static struct mailname mq = { NULL };
-
-/*
-** Buffer size for content part of header fields.
-** We want this to be large enough so that we don't
-** do a lot of extra FLDPLUS calls on m_getfld but
-** small enough so that we don't snarf the entire
-** message body when we're not going to use any of it.
-*/
-#define SBUFSIZ 256
-
-static struct format *fmt;
-
-static int ncomps = 0; /* # of interesting components */
-static char **compbuffers = NULL; /* buffers for component text */
-static struct comp **used_buf = NULL; /* stack for comp that use buffers */
-
-static int dat[5]; /* aux. data for format routine */
-
-static char *addrcomps[] = {
- "from",
- "sender",
- "reply-to",
- "to",
- "cc",
- "bcc",
- "resent-from",
- "resent-sender",
- "resent-reply-to",
- "resent-to",
- "resent-cc",
- "resent-bcc",
- NULL
-};
-
-/*
-** static prototypes
-*/
-static int insert(struct mailname *);
-static void replfilter(FILE *, FILE *, char *);
-
-
-void
-replout(FILE *inb, char *msg, char *drft, struct msgs *mp,
- int mime, char *form, char *filter)
-{
- register int state, i;
- register struct comp *cptr;
- register char *tmpbuf;
- register char **nxtbuf;
- register char **ap;
- register struct comp **savecomp;
- int char_read = 0, format_len, mask;
- char name[NAMESZ], *scanl;
- unsigned char *cp;
- FILE *out;
-
- mask = umask(~m_gmprot());
- if ((out = fopen(drft, "w")) == NULL)
- adios(drft, "unable to create");
-
- umask(mask);
-
- /* get new format string */
- cp = new_fs(form, NULL, NULL);
- format_len = strlen(cp);
-
- /* compile format string */
- ncomps = fmt_compile(cp, &fmt) + 1;
-
- if (!(nxtbuf = compbuffers = (char **)
- calloc((size_t) ncomps, sizeof(char *))))
- adios(NULL, "unable to allocate component buffers");
- if (!(savecomp = used_buf = (struct comp **)
- calloc((size_t) (ncomps+1), sizeof(struct comp *))))
- adios(NULL, "unable to allocate component buffer stack");
- savecomp += ncomps + 1;
- *--savecomp = NULL; /* point at zero'd end minus 1 */
-
- for (i = ncomps; i--; )
- *nxtbuf++ = mh_xmalloc(SBUFSIZ);
-
- nxtbuf = compbuffers; /* point at start */
- tmpbuf = *nxtbuf++;
-
- for (ap = addrcomps; *ap; ap++) {
- FINDCOMP(cptr, *ap);
- if (cptr)
- cptr->c_type |= CT_ADDR;
- }
-
- /*
- ** ignore any components killed by command line switches
- */
- if (!ccto) {
- FINDCOMP(cptr, "to");
- if (cptr)
- cptr->c_name = "";
- }
- if (!cccc) {
- FINDCOMP(cptr, "cc");
- if (cptr)
- cptr->c_name = "";
- }
- if ((cp = getenv("USER"))) {
- FINDCOMP(cptr, "user");
- if (cptr)
- cptr->c_text = getcpy(cp);
- }
- if (!ccme)
- ismymbox(NULL);
-
- /*
- ** pick any interesting stuff out of msg "inb"
- */
- for (state = FLD;;) {
- state = m_getfld(state, name, tmpbuf, SBUFSIZ, inb);
- switch (state) {
- case FLD:
- case FLDPLUS:
- /*
- ** if we're interested in this component, save
- ** a pointer to the component text, then start
- ** using our next free buffer as the component
- ** temp buffer (buffer switching saves an extra
- ** copy of the component text).
- */
- if ((cptr = wantcomp[CHASH(name)]))
- do {
- if (!mh_strcasecmp(name, cptr->c_name)) {
- char_read += msg_count;
- if (! cptr->c_text) {
- i = strlen(cptr->c_text = tmpbuf) - 1;
- if (tmpbuf[i] == '\n')
- tmpbuf[i] = '\0';
- *--savecomp = cptr;
- tmpbuf = *nxtbuf++;
- } else {
- i = strlen(cp = cptr->c_text) - 1;
- if (cp[i] == '\n') {
- if (cptr->c_type & CT_ADDR) {
- cp[i] = '\0';
- cp = add(",\n\t", cp);
- } else {
- cp = add("\t", cp);
- }
- }
- cptr->c_text = add(tmpbuf, cp);
- }
- while (state == FLDPLUS) {
- state = m_getfld(state, name, tmpbuf,
- SBUFSIZ, inb);
- cptr->c_text = add(tmpbuf, cptr->c_text);
- char_read += msg_count;
- }
- break;
- }
- } while ((cptr = cptr->c_next));
-
- while (state == FLDPLUS)
- state = m_getfld(state, name, tmpbuf,
- SBUFSIZ, inb);
- break;
-
- case LENERR:
- case FMTERR:
- case BODY:
- case FILEEOF:
- goto finished;
-
- default:
- adios(NULL, "m_getfld() returned %d", state);
- }
- }
-
- /*
- ** format and output the header lines.
- */
-finished:
-
- /*
- ** if there's a "Subject" component, strip any "Re:"s off it
- */
- FINDCOMP(cptr, "subject")
- if (cptr && (cp = cptr->c_text)) {
- register char *sp = cp;
-
- for (;;) {
- while (isspace(*cp))
- cp++;
- if(uprf(cp, "re:"))
- cp += 3;
- else
- break;
- sp = cp;
- }
- if (sp != cptr->c_text) {
- cp = cptr->c_text;
- cptr->c_text = getcpy(sp);
- free(cp);
- }
- }
- i = format_len + char_read + 256;
- scanl = mh_xmalloc((size_t) i + 2);
- dat[0] = 0;
- dat[1] = 0;
- dat[2] = 0;
- dat[3] = OUTPUTLINELEN;
- dat[4] = 0;
- fmt_scan(fmt, scanl, i, dat);
- fputs(scanl, out);
- if (badaddrs) {
- fputs("\nrepl: bad addresses:\n", out);
- fputs( badaddrs, out);
- }
-
- /* Check if we should filter the message */
- if (filter) {
- fflush(out);
- if (ferror(out))
- adios(drft, "error writing");
-
- replfilter(inb, out, filter);
- }
-
- fflush(out);
- if (ferror(out))
- adios(drft, "error writing");
- fclose(out);
-
- /* if we want mime, then add an attachment header */
- if (!filter && mime && mp) {
- char buffer[BUFSIZ];
-
- snprintf(buffer, sizeof buffer, "+%s %s",
- mp->foldpath, m_name(mp->lowsel));
- annotate(drft, attach_hdr, buffer, 0, -2, 1);
- }
-
- /* return dynamically allocated buffers */
- free(scanl);
- for (nxtbuf = compbuffers, i = ncomps; (cptr = *savecomp++);
- nxtbuf++, i--)
- free(cptr->c_text); /* if not nxtbuf, nxtbuf already freed */
- while ( i-- > 0)
- free(*nxtbuf++); /* free unused nxtbufs */
- free((char *) compbuffers);
- free((char *) used_buf);
-}
-
-static char *buf; /* our current working buffer */
-static char *bufend; /* end of working buffer */
-static char *last_dst; /* buf ptr at end of last call */
-static unsigned int bufsiz=0; /* current size of buf */
-
-#define BUFINCR 512 /* how much to expand buf when if fills */
-
-#define CPY(s) { cp = (s); while ((*dst++ = *cp++)) ; --dst; }
-
-/*
-** check if there's enough room in buf for str.
-** add more mem if needed
-*/
-#define CHECKMEM(str) \
- if ((len = strlen(str)) >= bufend - dst) {\
- int i = dst - buf;\
- int n = last_dst - buf;\
- bufsiz += ((dst + len - bufend) / BUFINCR + 1) * BUFINCR;\
- buf = mh_xrealloc(buf, bufsiz);\
- dst = buf + i;\
- last_dst = buf + n;\
- bufend = buf + bufsiz;\
- }
-
-
-/*
-** fmt_scan will call this routine if the user includes the function
-** "(formataddr {component})" in a format string. "orig" is the
-** original contents of the string register. "str" is the address
-** string to be formatted and concatenated onto orig. This routine
-** returns a pointer to the concatenated address string.
-**
-** We try to not do a lot of malloc/copy/free's (which is why we
-** don't call "getcpy") but still place no upper limit on the
-** length of the result string.
-**
-** This routine is an override for the equally named one in sbr/fmt_addr.c.
-** Don't delete it!
-*/
-char *
-formataddr(char *orig, char *str)
-{
- register int len;
- char baddr[BUFSIZ], error[BUFSIZ];
- register int isgroup;
- register char *dst;
- register char *cp;
- register char *sp;
- register struct mailname *mp = NULL;
-
- /* if we don't have a buffer yet, get one */
- if (bufsiz == 0) {
- buf = mh_xmalloc(BUFINCR);
- last_dst = buf; /* XXX */
- bufsiz = BUFINCR - 6; /* leave some slop */
- bufend = buf + bufsiz;
- }
- /*
- ** If "orig" points to our buffer we can just pick up where we
- ** left off. Otherwise we have to copy orig into our buffer.
- */
- if (orig == buf)
- dst = last_dst;
- else if (!orig || !*orig) {
- dst = buf;
- *dst = '\0';
- } else {
- dst = last_dst; /* XXX */
- CHECKMEM(orig);
- CPY(orig);
- }
-
- /* concatenate all the new addresses onto 'buf' */
- for (isgroup = 0; (cp = getname(str)); ) {
- if ((mp = getm(cp, dfhost, dftype, AD_NAME, error)) == NULL) {
- snprintf(baddr, sizeof(baddr), "\t%s -- %s\n",
- cp, error);
- badaddrs = add(baddr, badaddrs);
- continue;
- }
- if (isgroup && (mp->m_gname || !mp->m_ingrp)) {
- *dst++ = ';';
- isgroup = 0;
- }
- if (insert(mp)) {
- /* if we get here we're going to add an address */
- if (dst != buf) {
- *dst++ = ',';
- *dst++ = ' ';
- }
- if (mp->m_gname) {
- CHECKMEM(mp->m_gname);
- CPY(mp->m_gname);
- isgroup++;
- }
- sp = adrformat(mp);
- CHECKMEM(sp);
- CPY(sp);
- }
- }
-
- if (isgroup)
- *dst++ = ';';
-
- *dst = '\0';
- last_dst = dst;
- return (buf);
-}
-
-
-static int
-insert(struct mailname *np)
-{
- char buffer[BUFSIZ];
- register struct mailname *mp;
-
- if (np->m_mbox == NULL)
- return 0;
-
- for (mp = &mq; mp->m_next; mp = mp->m_next) {
- if (!mh_strcasecmp(np->m_host, mp->m_next->m_host) &&
- !mh_strcasecmp(np->m_mbox, mp->m_next->m_mbox))
- return 0;
- }
- if (!ccme && ismymbox(np))
- return 0;
-
- if (querysw) {
- snprintf(buffer, sizeof(buffer), "Reply to %s? ",
- adrformat(np));
- if (!gans(buffer, anoyes))
- return 0;
- }
- mp->m_next = np;
-
-#ifdef ISI
- if (ismymbox(np))
- ccme = 0;
-#endif
-
- return 1;
-}
-
-
-/*
-** Call the mhlproc
-**
-** This function expects that argument out has been fflushed by the caller.
-*/
-
-static void
-replfilter(FILE *in, FILE *out, char *filter)
-{
- int pid;
- char *mhl;
- char *errstr;
-
- if (filter == NULL)
- return;
-
- if (access(filter, R_OK) == NOTOK)
- adios(filter, "unable to read");
-
- mhl = mhbasename(mhlproc);
-
- rewind(in);
- lseek(fileno(in), (off_t) 0, SEEK_SET);
-
- switch (pid = fork()) {
- case NOTOK:
- adios("fork", "unable to");
-
- case OK:
- dup2(fileno(in), fileno(stdin));
- dup2(fileno(out), fileno(stdout));
- closefds(3);
-
- execlp(mhlproc, mhl, "-form", filter, "-noclear", NULL);
- errstr = strerror(errno);
- write(2, "unable to exec ", 15);
- write(2, mhlproc, strlen(mhlproc));
- write(2, ": ", 2);
- write(2, errstr, strlen(errstr));
- write(2, "\n", 1);
- _exit(-1);
-
- default:
- if (pidXwait(pid, mhl))
- done(1);
- fseek(out, 0L, SEEK_END);
- break;
- }
-}
projects / mmh / blobdiff