X-Git-Url: http://git.marmaro.de/?a=blobdiff_plain;f=uip%2Fmhlsbr.c;h=9964fa05280f4637e0fd13898f78ccca9120aca3;hb=832f687b6c2afdb9dd09e0c5bbc249e1bf22f433;hp=6335463f4447167ff4dbf128a4aaea1f0f2bacca;hpb=88b27ae07f694e90637c2a852b754539c2f70172;p=mmh diff --git a/uip/mhlsbr.c b/uip/mhlsbr.c index 6335463..9964fa0 100644 --- a/uip/mhlsbr.c +++ b/uip/mhlsbr.c @@ -13,8 +13,11 @@ #include #include #include -#include +#include #include +#include +#include +#include /* * MAJOR BUG: @@ -50,44 +53,44 @@ static struct swit mhlswitches[] = { { "clear", 0 }, #define NCLRSW 3 { "noclear", 0 }, -#define FACESW 4 - { "faceproc program", 0 }, -#define NFACESW 5 - { "nofaceproc", 0 }, -#define FOLDSW 6 +#define FOLDSW 4 { "folder +folder", 0 }, -#define FORMSW 7 +#define FORMSW 5 { "form formfile", 0 }, -#define PROGSW 8 +#define PROGSW 6 { "moreproc program", 0 }, -#define NPROGSW 9 +#define NPROGSW 7 { "nomoreproc", 0 }, -#define LENSW 10 +#define LENSW 8 { "length lines", 0 }, -#define WIDTHSW 11 +#define WIDTHSW 9 { "width columns", 0 }, -#define SLEEPSW 12 +#define SLEEPSW 10 { "sleep seconds", 0 }, -#define BITSTUFFSW 13 +#define BITSTUFFSW 11 { "dashstuffing", -12 }, /* interface from forw */ -#define NBITSTUFFSW 14 +#define NBITSTUFFSW 12 { "nodashstuffing", -14 }, /* interface from forw */ -#define VERSIONSW 15 +#define VERSIONSW 13 { "version", 0 }, -#define HELPSW 16 +#define HELPSW 14 { "help", 0 }, -#define FORW1SW 17 +#define FORW1SW 15 { "forward", -7 }, /* interface from forw */ -#define FORW2SW 18 +#define FORW2SW 16 { "forwall", -7 }, /* interface from forw */ -#define DGSTSW 19 +#define DGSTSW 17 { "digest list", -6 }, -#define VOLUMSW 20 +#define VOLUMSW 18 { "volume number", -6 }, -#define ISSUESW 21 +#define ISSUESW 19 { "issue number", -5 }, -#define NBODYSW 22 +#define NBODYSW 20 { "nobody", -6 }, +#define FMTPROCSW 21 + { "fmtproc program", 0 }, +#define NFMTPROCSW 22 + { "nofmtproc", 0 }, { NULL, 0 } }; @@ -105,12 +108,22 @@ static struct swit mhlswitches[] = { #define DATEFMT 0x000800 /* contains dates */ #define FORMAT 0x001000 /* parse address/date/RFC-2047 field */ #define INIT 0x002000 /* initialize component */ -#define FACEFMT 0x004000 /* contains face */ -#define FACEDFLT 0x008000 /* default for face */ #define SPLIT 0x010000 /* split headers (don't concatenate) */ #define NONEWLINE 0x020000 /* don't write trailing newline */ -#define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013BELL\014DATEFMT\015FORMAT\016INIT\017FACEFMT\020FACEDFLT\021SPLIT\022NONEWLINE" -#define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT) +#define NOWRAP 0x040000 /* Don't wrap lines ever */ +#define FMTFILTER 0x080000 /* Filter through format filter */ +#define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013BELL\014DATEFMT\015FORMAT\016INIT\021SPLIT\022NONEWLINE\023NOWRAP\024FMTFILTER" +#define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT | NOWRAP) + +/* + * A list of format arguments + */ + +struct arglist { + struct format *a_fmt; + char *a_nfs; + struct arglist *a_next; +}; struct mcomp { char *c_name; /* component name */ @@ -118,13 +131,15 @@ struct mcomp { char *c_ovtxt; /* text overflow indicator */ char *c_nfs; /* iff FORMAT */ struct format *c_fmt; /* .. */ - char *c_face; /* face designator */ int c_offset; /* left margin indentation */ int c_ovoff; /* overflow indentation */ int c_width; /* width of field */ int c_cwidth; /* width of component */ int c_length; /* length in lines */ long c_flags; + struct arglist *c_f_args; /* Argument list for filter*/ + struct arglist *c_f_tail; /* Pointer to tail of list */ + int c_nargs; /* Number of arguments */ struct mcomp *c_next; }; @@ -134,11 +149,13 @@ static struct mcomp *fmthd = NULL; static struct mcomp *fmttl = NULL; static struct mcomp global = { - NULL, NULL, NULL, NULL, NULL, NULL, 0, -1, 80, -1, 40, BELL, NULL + NULL, NULL, NULL, NULL, NULL, 0, -1, 80, -1, 40, BELL, NULL, NULL, 0, + NULL }; static struct mcomp holder = { - NULL, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, NULL + NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, NULL, NULL, 0, + NULL }; struct pair { @@ -148,7 +165,7 @@ struct pair { static struct pair pairs[] = { { "Date", DATEFMT }, - { "From", ADDRFMT|FACEDFLT }, + { "From", ADDRFMT }, { "Sender", ADDRFMT }, { "Reply-To", ADDRFMT }, { "To", ADDRFMT }, @@ -161,7 +178,6 @@ static struct pair pairs[] = { { "Resent-To", ADDRFMT }, { "Resent-cc", ADDRFMT }, { "Resent-Bcc", ADDRFMT }, - { "Face", FACEFMT }, { NULL, 0 } }; @@ -192,9 +208,29 @@ static struct triple triples[] = { { "datefield", DATEFMT, ADDRFMT }, { "newline", 0, NONEWLINE }, { "nonewline", NONEWLINE, 0 }, + { "wrap", 0, NOWRAP }, + { "nowrap", NOWRAP, 0 }, + { "format", FMTFILTER, 0 }, + { "noformat", 0, FMTFILTER }, { NULL, 0, 0 } }; +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 int bellflg = 0; static int clearflg = 0; @@ -212,6 +248,8 @@ static int issue = 0; static int exitstat = 0; static int mhldebug = 0; +static int filesize = 0; + #define PITTY (-1) #define NOTTY 0 #define ISTTY 1 @@ -244,6 +282,7 @@ static char delim4[] = "\n------------------------------\n\n"; static FILE *(*mhl_action) () = (FILE *(*) ()) 0; +static struct comp *mhlcomp[128]; /* * Redefine a couple of functions. @@ -269,33 +308,28 @@ static struct mcomp *add_queue (struct mcomp **, struct mcomp **, char *, char * static void free_queue (struct mcomp **, struct mcomp **); static void putcomp (struct mcomp *, struct mcomp *, int); static char *oneline (char *, long); -static void putstr (char *); -static void putch (char); +static void putstr (char *, long); +static void putch (char, long); static void intrser (int); static void pipeser (int); static void quitser (int); -static void face_format (struct mcomp *); -static int doface (struct mcomp *); static void mhladios (char *, char *, ...); static void mhldone (int); static void m_popen (char *); - -int mhl (int, char **); -int mhlsbr (int, char **, FILE *(*)()); -void m_pclose (void); - -void clear_screen (void); /* from termsbr.c */ -int SOprintf (char *, ...); /* from termsbr.c */ -int sc_width (void); /* from termsbr.c */ -int sc_length (void); /* from termsbr.c */ -int sc_hardcopy (void); /* from termsbr.c */ +static void filterbody (struct mcomp *, char *, int, int, FILE *); +static int compileargs (struct mcomp *, char *); +static int checkcomp (char *, char *); +static void addcomp (int, char *, char *); +static void freecomps (void); +static void freecomptext (void); int mhl (int argc, char **argv) { int length = 0, nomore = 0; - int i, width = 0, vecp = 0; + unsigned int i, vecp = 0; + int width = 0; char *cp, *folder = NULL, *form = NULL; char buf[BUFSIZ], *files[MAXARGS]; char **argp, **arguments; @@ -311,9 +345,6 @@ mhl (int argc, char **argv) if ((cp = getenv ("MHLDEBUG")) && *cp) mhldebug++; - if ((cp = getenv ("FACEPROC"))) - faceproc = cp; - while ((cp = *argp++)) { if (*cp == '-') { switch (smatch (++cp, mhlswitches)) { @@ -326,10 +357,10 @@ mhl (int argc, char **argv) case HELPSW: snprintf (buf, sizeof(buf), "%s [switches] [files ...]", invo_name); print_help (buf, mhlswitches, 1); - done (1); + done (0); case VERSIONSW: print_version(invo_name); - done (1); + done (0); case BELLSW: bellflg = 1; @@ -354,13 +385,6 @@ mhl (int argc, char **argv) adios (NULL, "missing argument to %s", argp[-2]); continue; - case FACESW: - if (!(faceproc = *argp++) || *faceproc == '-') - adios (NULL, "missing argument to %s", argp[-2]); - continue; - case NFACESW: - faceproc = NULL; - continue; case SLEEPSW: if (!(cp = *argp++) || *cp == '-') adios (NULL, "missing argument to %s", argp[-2]); @@ -375,6 +399,14 @@ mhl (int argc, char **argv) nomore++; continue; + case FMTPROCSW: + if (!(formatproc = *argp++) || *formatproc == '-') + adios (NULL, "missing argument to %s", argp[-2]); + continue; + case NFMTPROCSW: + formatproc = NULL; + continue; + case LENSW: if (!(cp = *argp++) || *cp == '-') adios (NULL, "missing argument to %s", argp[-2]); @@ -448,6 +480,9 @@ mhl (int argc, char **argv) ontty = NOTTY; } + for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) + mhlcomp[i] = NULL; + mhl_format (form ? form : mhlformat, length, width); if (vecp == 0) { @@ -457,6 +492,8 @@ mhl (int argc, char **argv) process (folder, files[i], i + 1, vecp); } + freecomps(); + if (forwall) { if (digest) { printf ("%s", delim4); @@ -474,7 +511,7 @@ mhl (int argc, char **argv) printf ("%s", buf); } else - printf ("\n------- End of Forwarded Message%s\n\n", + printf ("\n------- End of Forwarded Message%s\n", vecp > 1 ? "s" : ""); } @@ -715,6 +752,20 @@ evalvar (struct mcomp *c1) return 0; } + if (!mh_strcasecmp (name, "formatarg")) { + char *nfs; + int rc; + + if (ptos (name, &cp)) + return 1; + nfs = new_fs (NULL, NULL, cp); + + rc = compileargs(c1, nfs); + + return rc; + } + + return 1; } @@ -795,8 +846,9 @@ process (char *folder, char *fname, int ofilen, int ofilec) char *cp = NULL; FILE *fp = NULL; struct mcomp *c1; + struct stat st; - switch (m_setjmp (env)) { + switch (setjmp (env)) { case OK: if (fname) { fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r"); @@ -809,6 +861,11 @@ process (char *folder, char *fname, int ofilen, int ofilec) fname = "(stdin)"; fp = stdin; } + if (fstat(fileno(fp), &st) == 0) { + filesize = st.st_size; + } else { + filesize = 0; + } cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname); if (ontty != PITTY) SIGNAL (SIGINT, intrser); @@ -829,13 +886,15 @@ process (char *folder, char *fname, int ofilen, int ofilec) c1->c_flags &= ~HDROUTPUT; break; } + + freecomptext(); } static void mhlfile (FILE *fp, char *mname, int ofilen, int ofilec) { - int state; + int state, bucket; struct mcomp *c1, *c2, *c3; char **ip, name[NAMESZ], buf[BUFSIZ]; @@ -901,10 +960,13 @@ mhlfile (FILE *fp, char *mname, int ofilen, int ofilec) switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) { case FLD: case FLDPLUS: + bucket = checkcomp(name, buf); for (ip = ignores; *ip; ip++) if (!mh_strcasecmp (name, *ip)) { - while (state == FLDPLUS) + while (state == FLDPLUS) { state = m_getfld (state, name, buf, sizeof(buf), fp); + addcomp(bucket, name, buf); + } break; } if (*ip) @@ -926,6 +988,7 @@ mhlfile (FILE *fp, char *mname, int ofilen, int ofilec) while (state == FLDPLUS) { state = m_getfld (state, name, buf, sizeof(buf), fp); c1->c_text = add (buf, c1->c_text); + addcomp(bucket, name, buf); } if (c2 == NULL) c1->c_flags |= EXTRA; @@ -954,15 +1017,20 @@ mhlfile (FILE *fp, char *mname, int ofilen, int ofilec) continue; } if (dobody && !mh_strcasecmp (c1->c_name, "body")) { - holder.c_text = mh_xmalloc (sizeof(buf)); - strncpy (holder.c_text, buf, sizeof(buf)); - while (state == BODY) { - putcomp (c1, &holder, BODYCOMP); - state = m_getfld (state, name, holder.c_text, - sizeof(buf), fp); + if (c1->c_flags & FMTFILTER && state == BODY && + formatproc != NULL) { + filterbody(c1, buf, sizeof(buf), state, fp); + } else { + holder.c_text = mh_xmalloc (sizeof(buf)); + strncpy (holder.c_text, buf, sizeof(buf)); + while (state == BODY) { + putcomp (c1, &holder, BODYCOMP); + state = m_getfld (state, name, holder.c_text, + sizeof(buf), fp); + } + free (holder.c_text); + holder.c_text = NULL; } - free (holder.c_text); - holder.c_text = NULL; continue; } for (c2 = msghd; c2; c2 = c2->c_next) @@ -971,17 +1039,6 @@ mhlfile (FILE *fp, char *mname, int ofilen, int ofilec) if (!(c1->c_flags & SPLIT)) break; } - if (faceproc && c2 == NULL && (c1->c_flags & FACEFMT)) - for (c2 = msghd; c2; c2 = c2->c_next) - if (c2->c_flags & FACEDFLT) { - if (c2->c_face == NULL) - face_format (c2); - if ((holder.c_text = c2->c_face)) { - putcomp (c1, &holder, ONECOMP); - holder.c_text = NULL; - } - break; - } } return; @@ -1048,7 +1105,7 @@ mcomp_format (struct mcomp *c1, struct mcomp *c2) c2->c_text = NULL; dat[0] = 0; dat[1] = 0; - dat[2] = 0; + dat[2] = filesize; dat[3] = sizeof(buffer) - 1; dat[4] = 0; fmt_compile (c1->c_nfs, &c1->c_fmt); @@ -1061,7 +1118,7 @@ mcomp_format (struct mcomp *c1, struct mcomp *c2) if (!cp[1]) *cp = 0; - fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat); + fmt_scan (c1->c_fmt, buffer, sizeof buffer - 1, sizeof buffer - 1, dat); /* Don't need to append a newline, dctime() already did */ c2->c_text = getcpy (buffer); @@ -1078,15 +1135,6 @@ mcomp_format (struct mcomp *c1, struct mcomp *c2) p->pq_text = getcpy (cp); p->pq_error = getcpy (error); } else { - if ((c1->c_flags & FACEDFLT) && c2->c_face == NULL) { - char *h, *o; - if ((h = mp->m_host) == NULL) - h = LocalName (); - if ((o = OfficialName (h))) - h = o; - c2->c_face = concat ("address ", h, " ", mp->m_mbox, - NULL); - } p->pq_text = getcpy (mp->m_text); mnfree (mp); } @@ -1101,7 +1149,7 @@ mcomp_format (struct mcomp *c1, struct mcomp *c2) if (cptr) cptr->c_text = p->pq_error; - fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat); + fmt_scan (c1->c_fmt, buffer, sizeof buffer - 1, sizeof buffer - 1, dat); if (*buffer) { if (c2->c_text) c2->c_text = add (",\n", c2->c_text); @@ -1170,8 +1218,17 @@ free_queue (struct mcomp **head, struct mcomp **tail) free (c1->c_nfs); if (c1->c_fmt) free ((char *) c1->c_fmt); - if (c1->c_face) - free (c1->c_face); + if (c1->c_f_args) { + struct arglist *a1, *a2; + for (a1 = c1->c_f_args; a1; a1 = a2) { + a2 = a1->a_next; + if (a1->a_fmt) + free(a1->a_fmt); + if (a1->a_nfs) + free(a1->a_nfs); + } + free(a1); + } free ((char *) c1); } @@ -1199,21 +1256,11 @@ putcomp (struct mcomp *c1, struct mcomp *c2, int flag) onelp = NULL; if (c1->c_flags & CLEARTEXT) { - putstr (c1->c_text); - putstr ("\n"); + putstr (c1->c_text, c1->c_flags); + putstr ("\n", c1->c_flags); return; } - if (c1->c_flags & FACEFMT) - switch (doface (c2)) { - case NOTOK: /* error */ - case OK: /* async faceproc */ - return; - - default: /* sync faceproc */ - break; - } - if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT))) mcomp_format (c1, c2); @@ -1233,9 +1280,9 @@ putcomp (struct mcomp *c1, struct mcomp *c2, int flag) for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++) if (islower (*cp)) *cp = toupper (*cp); - putstr (c1->c_text ? c1->c_text : c1->c_name); + putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags); if (flag != BODYCOMP) { - putstr (": "); + putstr (": ", c1->c_flags); if (!(c1->c_flags & SPLIT)) c1->c_flags |= HDROUTPUT; @@ -1243,7 +1290,7 @@ putcomp (struct mcomp *c1, struct mcomp *c2, int flag) if ((count = c1->c_cwidth - strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0) while (count--) - putstr (" "); + putstr (" ", c1->c_flags); } else c1->c_flags |= HDROUTPUT; /* for BODYCOMP */ @@ -1256,15 +1303,15 @@ putcomp (struct mcomp *c1, struct mcomp *c2, int flag) for (cp = c2->c_name; *cp; cp++) if (islower (*cp)) *cp = toupper (*cp); - putstr (c2->c_name); - putstr (": "); + putstr (c2->c_name, c1->c_flags); + putstr (": ", c1->c_flags); if (!(c1->c_flags & SPLIT)) c2->c_flags |= HDROUTPUT; cchdr++; if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0) while (count--) - putstr (" "); + putstr (" ", c1->c_flags); } if (c1->c_flags & UPPERCASE) for (cp = c2->c_text; *cp; cp++) @@ -1283,18 +1330,18 @@ putcomp (struct mcomp *c1, struct mcomp *c2, int flag) count += c1->c_offset; if ((cp = oneline (c2->c_text, c1->c_flags))) - putstr(cp); + putstr(cp, c1->c_flags); if (term == '\n') - putstr ("\n"); + putstr ("\n", c1->c_flags); while ((cp = oneline (c2->c_text, c1->c_flags))) { lm = count; if (flag == BODYCOMP && !(c1->c_flags & NOCOMPONENT)) - putstr (c1->c_text ? c1->c_text : c1->c_name); + putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags); if (*cp) - putstr (cp); + putstr (cp, c1->c_flags); if (term == '\n') - putstr ("\n"); + putstr ("\n", c1->c_flags); } if (flag == BODYCOMP && term == '\n') c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */ @@ -1354,27 +1401,27 @@ oneline (char *stuff, long flags) static void -putstr (char *string) +putstr (char *string, long flags) { if (!column && lm > 0) { while (lm > 0) if (lm >= 8) { - putch ('\t'); + putch ('\t', flags); lm -= 8; } else { - putch (' '); + putch (' ', flags); lm--; } } lm = 0; while (*string) - putch (*string++); + putch (*string++, flags); } static void -putch (char ch) +putch (char ch, long flags) { char buf[BUFSIZ]; @@ -1431,12 +1478,12 @@ putch (char ch) break; } - if (column >= wid) { - putch ('\n'); + if (column >= wid && (flags & NOWRAP) == 0) { + putch ('\n', flags); if (ovoff > 0) lm = ovoff; - putstr (ovtxt ? ovtxt : ""); - putch (ch); + putstr (ovtxt ? ovtxt : "", flags); + putch (ch, flags); return; } @@ -1475,206 +1522,6 @@ quitser (int i) } -static void -face_format (struct mcomp *c1) -{ - char *cp; - struct mailname *mp; - - if ((cp = c1->c_text) == NULL) - return; - - if ((cp = getname (cp))) { - if ((mp = getm (cp, NULL, 0, AD_NAME, NULL))) { - char *h, *o; - if ((h = mp->m_host) == NULL) - h = LocalName (); - if ((o = OfficialName (h))) - h = o; - c1->c_face = concat ("address ", h, " ", mp->m_mbox, NULL); - } - - while ((cp = getname (cp))) - continue; - } -} - - -/* - * faceproc is two elements defining the image agent's location: - * Internet host - * UDP port - */ - -#include -#include -#include -#include - -static int -doface (struct mcomp *c1) -{ - int result, sd; - static int inited = OK; - static struct sockaddr_storage ss; - static socklen_t socklen; - static int socktype; - static int protocol; - - if (inited == OK) { - char *cp; - char **ap = brkstring (cp = getcpy (faceproc), " ", "\n"); - struct addrinfo hints, *res; - - if (ap[0] == NULL || ap[1] == NULL) { -bad_faceproc: ; - free (cp); - return (inited = NOTOK); - } - - memset(&hints, 0, sizeof(hints)); -#ifdef AI_ADDRCONFIG - hints.ai_flags = AI_ADDRCONFIG; -#endif - hints.ai_family = PF_UNSPEC; - hints.ai_socktype = SOCK_DGRAM; - - if (getaddrinfo(ap[0], ap[1], &hints, &res) != 0) - goto bad_faceproc; - - memcpy(&ss, res->ai_addr, res->ai_addrlen); - socklen = res->ai_addrlen; - socktype = res->ai_socktype; - protocol = res->ai_protocol; - freeaddrinfo(res); - - inited = DONE; - } - if (inited == NOTOK) - return NOTOK; - - if ((sd = socket (ss.ss_family, socktype, protocol)) == NOTOK) - return NOTOK; - - result = sendto (sd, c1->c_text, strlen (c1->c_text), 0, - (struct sockaddr *) &ss, socklen); - - close (sd); - - return (result != NOTOK ? OK : NOTOK); -} - -/* - * COMMENTED OUT - * This version doesn't use sockets - */ -#if 0 - -static int -doface (struct mcomp *c1) -{ - int i, len, vecp; - pid_t child_id; - int result, pdi[2], pdo[2]; - char *bp, *cp; - char buffer[BUFSIZ], *vec[10]; - - if (pipe (pdi) == NOTOK) - return NOTOK; - if (pipe (pdo) == NOTOK) { - close (pdi[0]); - close (pdi[1]); - return NOTOK; - } - - for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++) - sleep (5); - - switch (child_id) { - case NOTOK: - /* oops... fork error */ - return NOTOK; - - case OK: - /* child process */ - SIGNAL (SIGINT, SIG_IGN); - SIGNAL (SIGQUIT, SIG_IGN); - if (pdi[0] != fileno (stdin)) { - dup2 (pdi[0], fileno (stdin)); - close (pdi[0]); - } - close (pdi[1]); - close (pdo[0]); - if (pdo[1] != fileno (stdout)) { - dup2 (pdo[1], fileno (stdout)); - close (pdo[1]); - } - vecp = 0; - vec[vecp++] = r1bindex (faceproc, '/'); - vec[vecp++] = "-e"; - if (sleepsw != NOTOK) { - vec[vecp++] = "-s"; - snprintf (buffer, sizeof(buffer), "%d", sleepsw); - vec[vecp++] = buffer; - } - vec[vecp] = NULL; - execvp (faceproc, vec); - fprintf (stderr, "unable to exec "); - perror (faceproc); - _exit (-1); /* NOTREACHED */ - - default: - /* parent process */ - close (pdi[0]); - i = strlen (c1->c_text); - if (write (pdi[1], c1->c_text, i) != i) - adios ("pipe", "error writing to"); - free (c1->c_text), c1->c_text = NULL; - close (pdi[1]); - - close (pdo[1]); - cp = NULL, len = 0; - result = DONE; - while ((i = read (pdo[0], buffer, strlen (buffer))) > 0) { - if (cp) { - int j; - char *dp; - dp = mh_xrealloc (cp, (unsigned) (j = len + i)); - memcpy(dp + len, buffer, i); - cp = dp, len = j; - } - else { - cp = mh_xmalloc ((unsigned) i); - memcpy(cp, buffer, i); - len = i; - } - if (result == DONE) - for (bp = buffer + i - 1; bp >= buffer; bp--) - if (!isascii (*bp) || iscntrl (*bp)) { - result = OK; - break; - } - } - close (pdo[0]); - -/* no waiting for child... */ - - if (result == OK) { /* binary */ - if (write (1, cp, len) != len) - adios ("writing", "error"); - free (cp); - } - else /* empty */ - if ((c1->c_text = cp) == NULL) - result = OK; - break; - } - - return result; -} -#endif /* COMMENTED OUT */ - - int mhlsbr (int argc, char **argv, FILE *(*action)()) { @@ -1682,7 +1529,7 @@ mhlsbr (int argc, char **argv, FILE *(*action)()) char *cp = NULL; struct mcomp *c1; - switch (m_setjmp (mhlenv)) { + switch (setjmp (mhlenv)) { case OK: cp = invo_name; sleepsw = 0; /* XXX */ @@ -1810,3 +1657,381 @@ m_pclose (void) pidwait (m_pid, OK); m_pid = NOTOK; } + + +/* + * Compile a format string and add it to the list of arguments used by + * the formatproc. + * + * This deserves some explanation. Here's the deal: + * + * We want to keep track of components used as arguments by formatproc, + * but the hash table is reset every time fmt_compile is called. So we + * iterate through the function list looking for things that use components + * and save the name. And because we might get the same components used + * by different arguments we need to keep track to every reference of + * every component so we can add them when the message is processed. So + * we compile the argument string now (to get the components we use) and + * save them for later. + */ + +static int +compileargs (struct mcomp *c1, char *nfs) +{ + struct format *fmt; + struct arglist *args; + char **ap; + struct comp *cptr; + unsigned int i; + + i = fmt_compile(nfs, &fmt); + + /* + * Search through and mark any components that are address components + */ + + for (ap = addrcomps; *ap; ap++) { + FINDCOMP (cptr, *ap); + if (cptr) + cptr->c_type |= CT_ADDR; + } + + args = (struct arglist *) mh_xmalloc(sizeof(struct arglist)); + + if (! args) + adios (NULL, "Unable to allocate formatproc args storage"); + + args->a_fmt = fmt; + args->a_nfs = format_string; + args->a_next = NULL; + c1->c_nargs++; + format_string = NULL; + + if (c1->c_f_tail) + c1->c_f_tail->a_next = args; + + c1->c_f_tail = args; + + if (! c1->c_f_args) + c1->c_f_args = args; + + if (i == 0) + return 0; + + /* + * If wantcomp ever changes size, we need to change the size + * of mhlcomp as well + */ + + for (i = 0; i < sizeof(wantcomp)/sizeof(wantcomp[0]); i++) { + if (wantcomp[i]) { + if (mhlcomp[i]) { + struct comp *c; + for (c = mhlcomp[i]; c->c_next != NULL; c = c->c_next) + ; + c->c_next = wantcomp[i]; + } else + mhlcomp[i] = wantcomp[i]; + } + } + + return 0; +} + +/* + * Check to see if we are interested in a component. If we are, save + * the text. + */ + +static int +checkcomp(char *name, char *buf) +{ + int found = 0, i; + struct comp *c; + int bucket = CHASH(name); + char *cp; + + if ((c = mhlcomp[bucket])) { + do { + if (mh_strcasecmp(name, c->c_name) == 0) { + found++; + if (! c->c_text) { + c->c_text = strdup(buf); + } else { + i = strlen(cp = c->c_text) - 1; + if (cp[i] == '\n') { + if (c->c_type & CT_ADDR) { + cp[i] = '\0'; + cp = add (",\n\t", cp); + } else { + cp = add ("\t", cp); + } + } + c->c_text = add (buf, cp); + } + } + } while ((c = c->c_next)); + } + + return found ? bucket : -1; +} + +/* + * Add text to an existing component + */ + +static void +addcomp(int bucket, char *name, char *buf) +{ + struct comp *c; + + if (bucket != -1) { + c = mhlcomp[bucket]; + do { + if (mh_strcasecmp(name, c->c_name) == 0) + c->c_text = add (buf, c->c_text); + } while ((c = c->c_next)); + } +} + +/* + * Free up saved component structures + */ + +static void +freecomps(void) +{ + struct comp *c1, *c2; + unsigned int i; + + for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) { + if ((c1 = mhlcomp[i])) + for (; c1; c1 = c2) { + c2 = c1->c_next; + if (c1->c_text) + free(c1->c_text); + free(c1); + } + } +} + +/* + * Just free up the component text. + */ + +static void +freecomptext(void) +{ + struct comp *c1; + unsigned int i; + + for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) { + if ((c1 = mhlcomp[i])) + for (; c1; c1 = c1->c_next) { + if (c1->c_text) { + free(c1->c_text); + c1->c_text = NULL; + } + } + } +} + +/* + * Filter the body of a message through a specified format program + */ + +static void +filterbody (struct mcomp *c1, char *buf, int bufsz, int state, FILE *fp) +{ + struct mcomp holder; + char name[NAMESZ]; + int fdinput[2], fdoutput[2], waitstat; + ssize_t cc; + pid_t writerpid, filterpid; + + /* + * Create pipes so we can communicate with our filter process. + */ + + if (pipe(fdinput) < 0) { + adios(NULL, "Unable to create input pipe"); + } + + if (pipe(fdoutput) < 0) { + adios(NULL, "Unable to create output pipe"); + } + + /* + * Here's what we're doing to do. + * + * - Fork ourselves and start writing data to the write side of the + * input pipe (fdinput[1]). + * + * - Fork and exec our filter program. We set the standard input of + * our filter program to be the read side of our input pipe (fdinput[0]). + * Standard output is set to the write side of our output pipe + * (fdoutput[1]). + * + * - We read from the read side of the output pipe (fdoutput[0]). + * + * We're forking because that's the simplest way to prevent any deadlocks. + * (without doing something like switching to non-blocking I/O and using + * select or poll, and I'm not interested in doing that). + */ + + switch (writerpid = fork()) { + case 0: + /* + * Our child process - just write to the filter input (fdinput[1]). + * Close all other descriptors that we don't need. + */ + + close(fdinput[0]); + close(fdoutput[0]); + close(fdoutput[1]); + + /* + * Call m_getfld() until we're no longer in the BODY state + */ + + while (state == BODY) { + write(fdinput[1], buf, strlen(buf)); + state = m_getfld(state, name, buf, bufsz, fp); + } + + /* + * We should be done; time to exit. + */ + + close(fdinput[1]); + /* + * Make sure we call _exit(), otherwise we may flush out the stdio + * buffers that we have duplicated from the parent. + */ + _exit(0); + break; + case -1: + adios(NULL, "Unable to fork for filter writer process"); + break; + } + + /* + * Fork and exec() our filter program, after redirecting standard in + * and standard out appropriately. + */ + + switch (filterpid = fork()) { + char **args; + struct arglist *a; + int i, dat[5], s; + + case 0: + /* + * Allocate an argument array for us + */ + + args = (char **) mh_xmalloc((c1->c_nargs + 2) * sizeof(char *)); + args[0] = formatproc; + args[c1->c_nargs + 1] = NULL; + dat[0] = 0; + dat[1] = 0; + dat[2] = 0; + dat[3] = BUFSIZ; + dat[4] = 0; + + /* + * Pull out each argument and scan them. + */ + + for (a = c1->c_f_args, i = 1; a != NULL; a = a->a_next, i++) { + args[i] = mh_xmalloc(BUFSIZ); + fmt_scan(a->a_fmt, args[i], BUFSIZ - 1, BUFSIZ, dat); + /* + * fmt_scan likes to put a trailing newline at the end of the + * format string. If we have one, get rid of it. + */ + s = strlen(args[i]); + if (args[i][s - 1] == '\n') + args[i][s - 1] = '\0'; + } + + if (dup2(fdinput[0], STDIN_FILENO) < 0) { + adios("formatproc", "Unable to dup2() standard input"); + } + if (dup2(fdoutput[1], STDOUT_FILENO) < 0) { + adios("formatproc", "Unable to dup2() standard output"); + } + + /* + * Close everything (especially the old input and output + * descriptors, since they've been dup'd to stdin and stdout), + * and exec the formatproc. + */ + + close(fdinput[0]); + close(fdinput[1]); + close(fdoutput[0]); + close(fdoutput[1]); + + execvp(formatproc, args); + + adios(formatproc, "Unable to execute filter"); + + break; + + case -1: + adios(NULL, "Unable to fork format program"); + } + + /* + * Close everything except our reader (fdoutput[0]); + */ + + close(fdinput[0]); + close(fdinput[1]); + close(fdoutput[1]); + + /* + * As we read in this data, send it to putcomp + */ + + holder.c_text = buf; + + while ((cc = read(fdoutput[0], buf, bufsz - 1)) > 0) { + buf[cc] = '\0'; + putcomp(c1, &holder, BODYCOMP); + } + + if (cc < 0) { + adios(NULL, "reading from formatproc"); + } + + /* + * See if we got any errors along the way. I'm a little leery of calling + * waitpid() without WNOHANG, but it seems to be the most correct solution. + */ + + if (waitpid(filterpid, &waitstat, 0) < 0) { + if (errno != ECHILD) { + adios("filterproc", "Unable to determine status"); + } + } else { + if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) { + pidstatus(waitstat, stderr, "filterproc"); + } + } + + if (waitpid(writerpid, &waitstat, 0) < 0) { + if (errno != ECHILD) { + adios("writer process", "Unable to determine status"); + done(1); + } + } else { + if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) { + pidstatus(waitstat, stderr, "writer process"); + done(1); + } + } + + close(fdoutput[0]); +}