diplodocus.org Git - nmh/blob - uip/fmttest.c

   1 /* fmttest.c -- A program to help test and debug format instructions
   2  *
   3  * This code is Copyright (c) 2012, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include "h/mh.h"
   9 #include "sbr/fmt_new.h"
  10 #include "scansbr.h"
  11 #include "sbr/m_name.h"
  12 #include "sbr/m_getfld.h"
  13 #include "sbr/getarguments.h"
  14 #include "sbr/seq_setprev.h"
  15 #include "sbr/seq_save.h"
  16 #include "sbr/smatch.h"
  17 #include "sbr/snprintb.h"
  18 #include "sbr/getcpy.h"
  19 #include "sbr/m_convert.h"
  20 #include "sbr/getfolder.h"
  21 #include "sbr/folder_read.h"
  22 #include "sbr/folder_free.h"
  23 #include "sbr/context_save.h"
  24 #include "sbr/context_replace.h"
  25 #include "sbr/context_find.h"
  26 #include "sbr/brkstring.h"
  27 #include "sbr/ambigsw.h"
  28 #include "sbr/path.h"
  29 #include "sbr/print_version.h"
  30 #include "sbr/print_help.h"
  31 #include "sbr/seq_getnum.h"
  32 #include "sbr/error.h"
  33 #include "h/fmt_scan.h"
  34 #include "h/fmt_compile.h"
  35 #include "h/utils.h"
  36 #include "h/addrsbr.h"
  37 #include "h/done.h"
  38 #include "sbr/m_maildir.h"
  39 #include "sbr/terminal.h"
  40
  41 #define FMTTEST_SWITCHES \
  42     X("form formatfile", 0, FORMSW) \
  43     X("format string", 5, FMTSW) \
  44     X("address", 0, ADDRSW) \
  45     X("raw", 0, RAWSW) \
  46     X("date", 0, DATESW) \
  47     X("message", 0, MESSAGESW) \
  48     X("file", 0, FILESW) \
  49     X("nofile", 0, NFILESW) \
  50     X("-component-name component-text", 0, OTHERSW) \
  51     X("dupaddrs", 0, DUPADDRSW) \
  52     X("nodupaddrs", 0, NDUPADDRSW) \
  53     X("ccme", 0, CCMESW) \
  54     X("noccme", 0, NCCMESW) \
  55     X("outsize size-in-characters", 0, OUTSIZESW) \
  56     X("width column-width", 0, WIDTHSW) \
  57     X("msgnum number", 0, MSGNUMSW) \
  58     X("msgcur flag", 0, MSGCURSW) \
  59     X("msgsize size", 0, MSGSIZESW) \
  60     X("unseen flag", 0, UNSEENSW) \
  61     X("dump", 0, DUMPSW) \
  62     X("nodump", 0, NDUMPSW) \
  63     X("trace", 0, TRACESW) \
  64     X("notrace", 0, NTRACESW) \
  65     X("version", 0, VERSIONSW) \
  66     X("help", 0, HELPSW) \
  67
  68 #define X(sw, minchars, id) id,
  69 DEFINE_SWITCH_ENUM(FMTTEST);
  70 #undef X
  71
  72 #define X(sw, minchars, id) { sw, minchars, id },
  73 DEFINE_SWITCH_ARRAY(FMTTEST, switches);
  74 #undef X
  75
  76 /*
  77  * An array containing labels used for branch instructions
  78  */
  79
  80 static struct format **lvec = NULL;
  81 static int lused = 0;
  82 static int lallocated = 0;
  83
  84 enum mode_t { MESSAGE, ADDRESS, DATE, RAW };
  85 #define DEFADDRFORMAT "%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>"
  86 #define DEFDATEFORMAT "%<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>"
  87
  88 /*
  89  * Context structure used by the tracing routines
  90  */
  91
  92 struct trace_context {
  93     int num;
  94     char *str;
  95     char *outbuf;
  96 };
  97
  98 /*
  99  * static prototypes
 100  */
 101 static void fmt_dump (char *, struct format *);
 102 static void dumpone(struct format *);
 103 static void initlabels(struct format *);
 104 static int findlabel(struct format *);
 105 static void assignlabel(struct format *);
 106 static char *f_typestr(int);
 107 static char *c_typestr(int);
 108 static char *c_flagsstr(int);
 109 static void litputs(const char *);
 110 static void litputc(char);
 111 static void process_addresses(struct format *, struct msgs_array *,
 112                               charstring_t, int, int *,
 113                               struct fmt_callbacks *);
 114 static void process_raw(struct format *, struct msgs_array *, charstring_t,
 115                         int, int *, struct fmt_callbacks *);
 116 static void process_messages(struct format *, struct msgs_array *,
 117                              struct msgs_array *, charstring_t, char *, int,
 118                              int, int *, struct fmt_callbacks *);
 119 static void process_single_file(FILE *, struct msgs_array *, int *, int,
 120                                 struct format *, charstring_t, int,
 121                                 struct fmt_callbacks *);
 122 static void test_trace(void *, struct format *, int, char *, const char *);
 123 static char *test_formataddr(char *, char *);
 124 static char *test_concataddr(char *, char *);
 125 static int insert(struct mailname *);
 126 static void mlistfree(void);
 127
 128 static bool nodupcheck;         /* If set, no check for duplicates */
 129 static bool ccme;               /* Should I cc myself? */
 130 static struct mailname mq;      /* Mail addresses to check for duplicates */
 131 static char *dummy = "dummy";
 132
 133 int
 134 main (int argc, char **argv)
 135 {
 136     char *cp, *form = NULL, *format = NULL, *defformat = FORMAT, *folder = NULL;
 137     char buf[BUFSIZ], *nfs, **argp, **arguments;
 138     charstring_t buffer;
 139     struct format *fmt;
 140     struct comp *cptr;
 141     struct msgs_array msgs = { 0, 0, NULL }, compargs = { 0, 0, NULL};
 142     bool dump = false;
 143     int i;
 144     int outputsize = 0;
 145     bool dupaddrs = true;
 146     bool trace = false;
 147     int files = 0;
 148     int colwidth = -1, msgnum = -1, msgcur = -1, msgsize = -1, msgunseen = -1;
 149     enum mode_t mode = MESSAGE;
 150     int dat[5];
 151     struct fmt_callbacks cb, *cbp = NULL;
 152
 153     if (nmh_init(argv[0], true, true)) { return 1; }
 154
 155     arguments = getarguments (invo_name, argc, argv, 1);
 156     argp = arguments;
 157
 158     while ((cp = *argp++)) {
 159         if (*cp == '-') {
 160             /*
 161              * A -- means that we have a component name (like pick);
 162              * save the component name and the next argument for the text.
 163              */
 164             if (*++cp == '-') {
 165                 if (*++cp == '\0')
 166                     die("missing component name after --");
 167                 app_msgarg(&compargs, cp);
 168                 /* Grab next argument for component text */
 169                 if (!(cp = *argp++))
 170                     die("missing argument to %s", argp[-2]);
 171                 app_msgarg(&compargs, cp);
 172                 continue;
 173             }
 174             switch (smatch (cp, switches)) {
 175                 case AMBIGSW:
 176                     ambigsw (cp, switches);
 177                     done (1);
 178                 case UNKWNSW:
 179                     die("-%s unknown", cp);
 180
 181                 case HELPSW:
 182                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
 183                     print_help (buf, switches, 1);
 184                     done (0);
 185                 case VERSIONSW:
 186                     print_version(invo_name);
 187                     done (0);
 188                 case OTHERSW:
 189                     die("internal argument error!");
 190                     continue;
 191
 192                 case OUTSIZESW:
 193                     if (!(cp = *argp++) || *cp == '-')
 194                         die("missing argument to %s", argp[-2]);
 195                     if (strcmp(cp, "max") == 0)
 196                         outputsize = INT_MAX;
 197                     else if (strcmp(cp, "width") == 0)
 198                         outputsize = sc_width();
 199                     else
 200                         outputsize = atoi(cp);
 201                     continue;
 202
 203                 case FORMSW:
 204                     if (!(form = *argp++) || *form == '-')
 205                         die("missing argument to %s", argp[-2]);
 206                     format = NULL;
 207                     continue;
 208                 case FMTSW:
 209                     if (!(format = *argp++) || *format == '-')
 210                         die("missing argument to %s", argp[-2]);
 211                     form = NULL;
 212                     continue;
 213
 214                 case TRACESW:
 215                     trace = true;
 216                     continue;
 217                 case NTRACESW:
 218                     trace = false;
 219                     continue;
 220
 221                 case ADDRSW:
 222                     mode = ADDRESS;
 223                     defformat = DEFADDRFORMAT;
 224                     continue;
 225                 case RAWSW:
 226                     mode = RAW;
 227                     continue;
 228                 case MESSAGESW:
 229                     mode = MESSAGE;
 230                     defformat = FORMAT;
 231                     dupaddrs = false;
 232                     continue;
 233                 case DATESW:
 234                     mode = DATE;
 235                     defformat = DEFDATEFORMAT;
 236                     continue;
 237
 238                 case FILESW:
 239                     files++;
 240                     continue;
 241                 case NFILESW:
 242                     files = 0;
 243                     continue;
 244
 245                 case DUPADDRSW:
 246                     dupaddrs = true;
 247                     continue;
 248                 case NDUPADDRSW:
 249                     dupaddrs = false;
 250                     continue;
 251
 252                 case CCMESW:
 253                     ccme = true;
 254                     continue;
 255                 case NCCMESW:
 256                     ccme = false;
 257                     continue;
 258
 259                 case WIDTHSW:
 260                     if (!(cp = *argp++) || *cp == '-')
 261                         die("missing argument to %s", argp[-2]);
 262                     colwidth = atoi(cp);
 263                     continue;
 264                 case MSGNUMSW:
 265                     if (!(cp = *argp++) || *cp == '-')
 266                         die("missing argument to %s", argp[-2]);
 267                     msgnum = atoi(cp);
 268                     continue;
 269                 case MSGCURSW:
 270                     if (!(cp = *argp++) || *cp == '-')
 271                         die("missing argument to %s", argp[-2]);
 272                     msgcur = atoi(cp);
 273                     continue;
 274                 case MSGSIZESW:
 275                     if (!(cp = *argp++) || *cp == '-')
 276                         die("missing argument to %s", argp[-2]);
 277                     msgsize = atoi(cp);
 278                     continue;
 279                 case UNSEENSW:
 280                     if (!(cp = *argp++) || *cp == '-')
 281                         die("missing argument to %s", argp[-2]);
 282                     msgunseen = atoi(cp);
 283                     continue;
 284
 285                 case DUMPSW:
 286                     dump = true;
 287                     continue;
 288                 case NDUMPSW:
 289                     dump = false;
 290                     continue;
 291
 292             }
 293         }
 294
 295         /*
 296          * Only interpret as a folder if we're in message mode
 297          */
 298
 299         if (mode == MESSAGE && !files && (*cp == '+' || *cp == '@')) {
 300             if (folder)
 301                 die("only one folder at a time!");
 302             folder = pluspath (cp);
 303         } else
 304             app_msgarg(&msgs, cp);
 305     }
 306
 307     /*
 308      * Here's our weird heuristic:
 309      *
 310      * - We allow -dump without any other arguments.
 311      * - If you've given any component arguments, we don't require any
 312      *   other arguments.
 313      * - The arguments are interpreted as folders/messages _if_ we're in
 314      *   message mode, otherwise pass as strings in the text component.
 315      */
 316
 317    if (!dump && compargs.size == 0 && msgs.size == 0) {
 318         die("usage: [switches] [+folder] msgs | strings...");
 319    }
 320
 321    /*
 322     * If you're picking "raw" as a mode, then you have to select
 323     * a format.
 324     */
 325
 326    if (mode == RAW && form == NULL && format == NULL) {
 327         die("You must specify a format with -form or -format when "
 328                "using -raw");
 329    }
 330
 331     /*
 332      * Get new format string.  Must be before chdir().
 333      */
 334     nfs = new_fs (form, format, defformat);
 335     (void) fmt_compile(nfs, &fmt, 1);
 336
 337     if (dump || trace) {
 338         initlabels(fmt);
 339         if (dump) {
 340             fmt_dump(nfs, fmt);
 341             if (compargs.size == 0 && msgs.size == 0)
 342                 done(0);
 343         }
 344     }
 345
 346     buffer = charstring_create(BUFSIZ);
 347
 348     if (outputsize == 0) {
 349         if (mode == MESSAGE)
 350             outputsize = sc_width();
 351         else
 352             outputsize = INT_MAX;
 353     }
 354
 355     dat[0] = msgnum;
 356     dat[1] = msgcur;
 357     dat[2] = msgsize;
 358     dat[3] = colwidth == -1 ? outputsize : colwidth;
 359     dat[4] = msgunseen;
 360
 361     /*
 362      * If we want to provide our own formataddr, concactaddr, or tracing
 363      * callback, do that now.  Also, prime ismymbox if we use it.
 364      */
 365
 366     if (!dupaddrs || trace) {
 367         ZERO(&cb);
 368         cbp = &cb;
 369
 370         if (!dupaddrs) {
 371             cb.formataddr = test_formataddr;
 372             cb.concataddr = test_concataddr;
 373             if (!ccme)
 374                 ismymbox(NULL);
 375         }
 376
 377         if (trace) {
 378             struct trace_context *ctx;
 379
 380             NEW(ctx);
 381             ctx->num = -1;
 382             ctx->str = dummy;
 383             ctx->outbuf = mh_xstrdup("");
 384
 385             cb.trace_func = test_trace;
 386             cb.trace_context = ctx;
 387         }
 388     }
 389
 390     if (mode == MESSAGE) {
 391         process_messages(fmt, &compargs, &msgs, buffer, folder, outputsize,
 392                          files, dat, cbp);
 393     } else {
 394         if (compargs.size) {
 395             for (i = 0; i < compargs.size; i += 2) {
 396                 cptr = fmt_findcomp(compargs.msgs[i]);
 397                 if (cptr)
 398                     cptr->c_text = getcpy(compargs.msgs[i + 1]);
 399             }
 400         }
 401
 402         if (mode == ADDRESS) {
 403             process_addresses(fmt, &msgs, buffer, outputsize, dat, cbp);
 404         } else /* Fall-through for RAW or DATE */
 405             process_raw(fmt, &msgs, buffer, outputsize, dat, cbp);
 406     }
 407
 408     charstring_free(buffer);
 409     fmt_free(fmt, 1);
 410
 411     done(0);
 412     return 1;
 413 }
 414
 415 /*
 416  * Process each address with fmt_scan().
 417  */
 418
 419 struct pqpair {
 420     char *pq_text;
 421     char *pq_error;
 422     struct pqpair *pq_next;
 423 };
 424
 425 static void
 426 process_addresses(struct format *fmt, struct msgs_array *addrs,
 427                   charstring_t buffer, int outwidth, int *dat,
 428                   struct fmt_callbacks *cb)
 429 {
 430     int i;
 431     char *cp, error[BUFSIZ];
 432     struct mailname *mp;
 433     struct pqpair *p, *q;
 434     struct pqpair pq;
 435     struct comp *c;
 436
 437     if (dat[0] == -1)
 438         dat[0] = 0;
 439     if (dat[1] == -1)
 440         dat[1] = 0;
 441     if (dat[2] == -1)
 442         dat[2] = 0;
 443     if (dat[4] == -1)
 444         dat[4] = 0;
 445
 446     for (i = 0; i < addrs->size; i++) {
 447         (q = &pq)->pq_next = NULL;
 448         while ((cp = getname(addrs->msgs[i]))) {
 449             NEW0(p);
 450             if ((mp = getm(cp, NULL, 0, error, sizeof(error))) == NULL) {
 451                 p->pq_text = mh_xstrdup(cp);
 452                 p->pq_error = mh_xstrdup(error);
 453             } else {
 454                 p->pq_text = getcpy(mp->m_text);
 455                 mnfree(mp);
 456             }
 457             q = (q->pq_next = p);
 458         }
 459
 460         for (p = pq.pq_next; p; p = q) {
 461             c = fmt_findcomp("text");
 462             if (c) {
 463                 free(c->c_text);
 464                 c->c_text = p->pq_text;
 465                 p->pq_text = NULL;
 466             }
 467             c = fmt_findcomp("error");
 468             if (c) {
 469                 free(c->c_text);
 470                 c->c_text = p->pq_error;
 471                 p->pq_error = NULL;
 472             }
 473
 474             fmt_scan(fmt, buffer, outwidth, dat, cb);
 475             fputs(charstring_buffer(buffer), stdout);
 476             charstring_clear(buffer);
 477             mlistfree();
 478
 479             free(p->pq_text);
 480             free(p->pq_error);
 481             q = p->pq_next;
 482             free(p);
 483         }
 484     }
 485 }
 486
 487 /*
 488  * Process messages and run them through the format engine.  A lot taken
 489  * from scan.c.
 490  */
 491
 492 static void
 493 process_messages(struct format *fmt, struct msgs_array *comps,
 494                  struct msgs_array *msgs, charstring_t buffer, char *folder,
 495                  int outwidth, int files, int *dat,
 496                  struct fmt_callbacks *cb)
 497 {
 498     int i, msgnum, msgsize = dat[2], num = dat[0], cur = dat[1];
 499     int num_unseen_seq = 0;
 500     ivector_t seqnum = ivector_create (0);
 501     char *maildir, *cp;
 502     struct msgs *mp;
 503     FILE *in;
 504
 505     /*
 506      * If 'files' is set, short-circuit everything else and just process
 507      * everything now.
 508      */
 509
 510     if (files) {
 511         for (i = 0; i < msgs->size; i++) {
 512             if ((in = fopen(cp = msgs->msgs[i], "r")) == NULL) {
 513                 admonish(cp, "unable to open file");
 514                 continue;
 515             }
 516             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 517                                 outwidth, cb);
 518         }
 519
 520         return;
 521     }
 522
 523     if (! folder)
 524         folder = getfolder(1);
 525
 526     maildir = m_maildir(folder);
 527
 528     if (chdir(maildir) < 0)
 529         adios(maildir, "unable to change directory to");
 530
 531     if (!(mp = folder_read(folder, 1)))
 532         die("unable to read folder %s", folder);
 533
 534     if (mp->nummsg == 0)
 535         die("no messages in %s", folder);
 536
 537     for (i = 0; i < msgs->size; i++)
 538         if (!m_convert(mp, msgs->msgs[i]))
 539             done(1);
 540     seq_setprev(mp);                    /* set the Previous-Sequence */
 541
 542     context_replace(pfolder, folder);   /* update current folder */
 543     seq_save(mp);                       /* synchronize message sequences */
 544     context_save();                     /* save the context file */
 545
 546     /*
 547      * We want to set the unseen flag if requested, so we have to check
 548      * the unseen sequence as well.
 549      */
 550
 551     if (dat[4] == -1) {
 552         if ((cp = context_find(usequence)) && *cp) {
 553             char **ap, *dp;
 554
 555             dp = mh_xstrdup(cp);
 556             ap = brkstring(dp, " ", "\n");
 557             for (i = 0; ap && *ap; i++, ap++)
 558                 ivector_push_back (seqnum, seq_getnum(mp, *ap));
 559
 560             num_unseen_seq = i;
 561             free(dp);
 562         }
 563     }
 564
 565     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 566         if (is_selected(mp, msgnum)) {
 567             if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 568                 admonish(cp, "unable to open message");
 569                 continue;
 570             }
 571
 572             fmt_freecomptext();
 573
 574             if (num == -1)
 575                 dat[0] = msgnum;
 576
 577             if (cur == -1)
 578                 dat[1] = msgnum == mp->curmsg;
 579
 580             /*
 581              * Check to see if this is in the unseen sequence
 582              */
 583
 584             dat[4] = 0;
 585             for (i = 0; i < num_unseen_seq; i++) {
 586                 if (in_sequence(mp, ivector_at (seqnum, i), msgnum)) {
 587                     dat[4] = 1;
 588                     break;
 589                 }
 590             }
 591
 592             /*
 593              * Read in the message and process the components
 594              */
 595
 596             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 597                                 outwidth, cb);
 598         }
 599     }
 600
 601     ivector_free (seqnum);
 602     folder_free(mp);
 603 }
 604
 605 /*
 606  * Process a single file in message mode
 607  */
 608
 609 static void
 610 process_single_file(FILE *in, struct msgs_array *comps, int *dat, int msgsize,
 611                     struct format *fmt, charstring_t buffer, int outwidth,
 612                     struct fmt_callbacks *cb)
 613 {
 614     int i, state;
 615     char name[NAMESZ], rbuf[NMH_BUFSIZ];
 616     m_getfld_state_t gstate;
 617     struct comp *c;
 618     int bufsz;
 619
 620     /*
 621      * Get our size if we didn't include one
 622      */
 623
 624     if (msgsize == -1) {
 625         struct stat st;
 626
 627         if (fstat(fileno(in), &st) < 0)
 628             dat[2] = 0;
 629         else
 630             dat[2] = st.st_size;
 631     }
 632
 633     /*
 634      * Initialize everything else
 635      */
 636
 637     if (dat[0] == -1)
 638         dat[0] = 0;
 639     if (dat[1] == -1)
 640         dat[1] = 0;
 641     if (dat[4] == -1)
 642         dat[4] = 0;
 643
 644     /*
 645      * Read in the message and process the components
 646      */
 647
 648     gstate = m_getfld_state_init(in);
 649     for (;;) {
 650         bufsz = sizeof(rbuf);
 651         state = m_getfld2(&gstate, name, rbuf, &bufsz);
 652         switch (state) {
 653         case FLD:
 654         case FLDPLUS:
 655             i = fmt_addcomptext(name, rbuf);
 656             if (i != -1) {
 657                 while (state == FLDPLUS) {
 658                     bufsz = sizeof(rbuf);
 659                     state = m_getfld2(&gstate, name, rbuf, &bufsz);
 660                     fmt_appendcomp(i, name, rbuf);
 661                 }
 662             }
 663
 664             while (state == FLDPLUS) {
 665                 bufsz = sizeof(rbuf);
 666                 state = m_getfld2(&gstate, name, rbuf, &bufsz);
 667             }
 668             break;
 669
 670         case BODY:
 671             if (fmt_findcomp("body")) {
 672                 if ((i = strlen(rbuf)) < outwidth) {
 673                     bufsz = min (outwidth, (int) sizeof rbuf - i);
 674                     m_getfld2(&gstate, name, rbuf + i, &bufsz);
 675                 }
 676
 677                 fmt_addcomptext("body", rbuf);
 678             }
 679             goto finished;
 680
 681         default:
 682             goto finished;
 683         }
 684     }
 685 finished:
 686     fclose(in);
 687     m_getfld_state_destroy(&gstate);
 688
 689     /*
 690      * Do this now to override any components in the original message
 691      */
 692     if (comps->size) {
 693         for (i = 0; i < comps->size; i += 2) {
 694             c = fmt_findcomp(comps->msgs[i]);
 695             if (c) {
 696                 free(c->c_text);
 697                 c->c_text = getcpy(comps->msgs[i + 1]);
 698             }
 699         }
 700     }
 701     fmt_scan(fmt, buffer, outwidth, dat, cb);
 702     fputs(charstring_buffer (buffer), stdout);
 703     charstring_clear(buffer);
 704     mlistfree();
 705 }
 706
 707 /*
 708  * Run text through the format engine with no special processing
 709  */
 710
 711 static void
 712 process_raw(struct format *fmt, struct msgs_array *text, charstring_t buffer,
 713             int outwidth, int *dat, struct fmt_callbacks *cb)
 714 {
 715     int i;
 716     struct comp *c;
 717
 718     if (dat[0] == -1)
 719         dat[0] = 0;
 720     if (dat[1] == -1)
 721         dat[1] = 0;
 722     if (dat[2] == -1)
 723         dat[2] = 0;
 724     if (dat[4] == -1)
 725         dat[4] = 0;
 726
 727     c = fmt_findcomp("text");
 728
 729     for (i = 0; i < text->size; i++) {
 730         if (c != NULL) {
 731             free(c->c_text);
 732             c->c_text = getcpy(text->msgs[i]);
 733         }
 734
 735         fmt_scan(fmt, buffer, outwidth, dat, cb);
 736         fputs(charstring_buffer (buffer), stdout);
 737         charstring_clear(buffer);
 738         mlistfree();
 739     }
 740 }
 741
 742 /*
 743  * Our basic tracing support callback.
 744  *
 745  * Print out each instruction as it's executed, including the values of
 746  * the num and str registers if they've changed.
 747  */
 748
 749 static void
 750 test_trace(void *context, struct format *fmt, int num, char *str,
 751            const char *outbuf)
 752 {
 753     struct trace_context *ctx = (struct trace_context *) context;
 754     bool changed = false;
 755
 756     dumpone(fmt);
 757
 758     if (num != ctx->num) {
 759         printf("num=%d", num);
 760         ctx->num = num;
 761         changed = true;
 762     }
 763
 764     if (str != ctx->str) {
 765         if (changed)
 766             putchar(' ');
 767         changed = true;
 768         fputs("str=", stdout);
 769         litputs(str);
 770         ctx->str = str;
 771     }
 772
 773     if (changed)
 774         putchar('\n');
 775
 776     if (strcmp(outbuf, ctx->outbuf) != 0) {
 777         fputs("outbuf=", stdout);
 778         litputs(outbuf);
 779         putchar('\n');
 780         free(ctx->outbuf);
 781         ctx->outbuf = mh_xstrdup(outbuf);
 782     }
 783 }
 784
 785 static void
 786 fmt_dump (char *nfs, struct format *fmth)
 787 {
 788         struct format *fmt;
 789
 790         printf("Instruction dump of format string: \n%s\n", nfs);
 791
 792         /* Dump them out! */
 793         for (fmt = fmth; fmt; ++fmt) {
 794                 dumpone(fmt);
 795                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 796                         break;
 797         }
 798 }
 799
 800 static void
 801 dumpone(struct format *fmt)
 802 {
 803         int i;
 804
 805         if ((i = findlabel(fmt)) >= 0)
 806                 printf("L%d:", i);
 807         putchar('\t');
 808
 809         fputs(f_typestr((int)fmt->f_type), stdout);
 810
 811         switch (fmt->f_type) {
 812
 813         case FT_COMP:
 814         case FT_LS_COMP:
 815         case FT_LV_COMPFLAG:
 816         case FT_LV_COMP:
 817                 fputs(", comp ", stdout);
 818                 litputs(fmt->f_comp->c_name);
 819                 if (fmt->f_comp->c_type)
 820                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 821                 if (fmt->f_comp->c_flags)
 822                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 823                 break;
 824
 825         case FT_LV_SEC:
 826         case FT_LV_MIN:
 827         case FT_LV_HOUR:
 828         case FT_LV_MDAY:
 829         case FT_LV_MON:
 830         case FT_LS_MONTH:
 831         case FT_LS_LMONTH:
 832         case FT_LS_ZONE:
 833         case FT_LV_YEAR:
 834         case FT_LV_WDAY:
 835         case FT_LS_DAY:
 836         case FT_LS_WEEKDAY:
 837         case FT_LV_YDAY:
 838         case FT_LV_ZONE:
 839         case FT_LV_CLOCK:
 840         case FT_LV_RCLOCK:
 841         case FT_LV_DAYF:
 842         case FT_LV_ZONEF:
 843         case FT_LV_DST:
 844         case FT_LS_822DATE:
 845         case FT_LS_PRETTY:
 846         case FT_LOCALDATE:
 847         case FT_GMTDATE:
 848         case FT_PARSEDATE:
 849                 fputs(", c_name ", stdout);
 850                 litputs(fmt->f_comp->c_name);
 851                 if (fmt->f_comp->c_type)
 852                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 853                 if (fmt->f_comp->c_flags)
 854                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 855                 break;
 856
 857         case FT_LS_ADDR:
 858         case FT_LS_PERS:
 859         case FT_LS_MBOX:
 860         case FT_LS_HOST:
 861         case FT_LS_PATH:
 862         case FT_LS_GNAME:
 863         case FT_LS_NOTE:
 864         case FT_LS_822ADDR:
 865         case FT_LV_HOSTTYPE:
 866         case FT_LV_INGRPF:
 867         case FT_LV_NOHOSTF:
 868         case FT_LS_FRIENDLY:
 869         case FT_PARSEADDR:
 870         case FT_MYMBOX:
 871         case FT_GETMYMBOX:
 872         case FT_GETMYADDR:
 873                 fputs(", c_name ", stdout);
 874                 litputs(fmt->f_comp->c_name);
 875                 if (fmt->f_comp->c_type)
 876                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 877                 if (fmt->f_comp->c_flags)
 878                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 879                 break;
 880
 881         case FT_COMPF:
 882                 printf(", width %d, fill '", fmt->f_width);
 883                 litputc(fmt->f_fill);
 884                 fputs("' name ", stdout);
 885                 litputs(fmt->f_comp->c_name);
 886                 if (fmt->f_comp->c_type)
 887                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 888                 if (fmt->f_comp->c_flags)
 889                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 890                 break;
 891
 892         case FT_STRF:
 893         case FT_NUMF:
 894                 printf(", width %d, fill '", fmt->f_width);
 895                 litputc(fmt->f_fill);
 896                 putchar('\'');
 897                 break;
 898
 899         case FT_LIT:
 900                 putchar(' ');
 901                 litputs(fmt->f_text);
 902                 break;
 903
 904         case FT_LITF:
 905                 printf(", width %d, fill '", fmt->f_width);
 906                 litputc(fmt->f_fill);
 907                 fputs("' ", stdout);
 908                 litputs(fmt->f_text);
 909                 break;
 910
 911         case FT_CHAR:
 912                 putchar(' ');
 913                 putchar('\'');
 914                 litputc(fmt->f_char);
 915                 putchar('\'');
 916                 break;
 917
 918
 919         case FT_IF_S:
 920         case FT_IF_S_NULL:
 921         case FT_IF_MATCH:
 922         case FT_IF_AMATCH:
 923                 fputs(" continue else goto", stdout);
 924                 /* FALLTHRU */
 925         case FT_GOTO:
 926                 i = findlabel(fmt + fmt->f_skip);
 927                 printf(" L%d", i);
 928                 break;
 929
 930         case FT_IF_V_EQ:
 931         case FT_IF_V_NE:
 932         case FT_IF_V_GT:
 933                 i = findlabel(fmt + fmt->f_skip);
 934                 printf(" %d continue else goto L%d", fmt->f_value, i);
 935                 break;
 936
 937         case FT_V_EQ:
 938         case FT_V_NE:
 939         case FT_V_GT:
 940         case FT_LV_LIT:
 941         case FT_LV_PLUS_L:
 942         case FT_LV_MINUS_L:
 943         case FT_LV_MULTIPLY_L:
 944         case FT_LV_DIVIDE_L:
 945         case FT_LV_MODULO_L:
 946                 printf(" value %d", fmt->f_value);
 947                 break;
 948
 949         case FT_LS_LIT:
 950                 fputs(" str ", stdout);
 951                 litputs(fmt->f_text);
 952                 break;
 953
 954         case FT_LS_GETENV:
 955                 fputs(" getenv ", stdout);
 956                 litputs(fmt->f_text);
 957                 break;
 958
 959         case FT_LS_DECODECOMP:
 960                 fputs(", comp ", stdout);
 961                 litputs(fmt->f_comp->c_name);
 962                 break;
 963
 964         case FT_LS_DECODE:
 965                 break;
 966
 967         case FT_LS_TRIM:
 968                 printf(", width %d", fmt->f_width);
 969                 break;
 970
 971         case FT_LV_DAT:
 972                 printf(", value dat[%d]", fmt->f_value);
 973                 break;
 974         }
 975         putchar('\n');
 976 }
 977
 978 /*
 979  * Iterate over all instructions and assign labels to the targets of
 980  * branch statements
 981  */
 982
 983 static void
 984 initlabels(struct format *fmth)
 985 {
 986         struct format *fmt, *addr;
 987         int i;
 988
 989         /* Assign labels */
 990         for (fmt = fmth; fmt; ++fmt) {
 991                 i = fmt->f_type;
 992                 if (i == FT_IF_S ||
 993                     i == FT_IF_S_NULL ||
 994                     i == FT_IF_V_EQ ||
 995                     i == FT_IF_V_NE ||
 996                     i == FT_IF_V_GT ||
 997                     i == FT_IF_MATCH ||
 998                     i == FT_IF_AMATCH ||
 999                     i == FT_GOTO) {
1000                         addr = fmt + fmt->f_skip;
1001                         if (findlabel(addr) < 0)
1002                                 assignlabel(addr);
1003                 }
1004                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
1005                         break;
1006         }
1007 }
1008
1009
1010 static int
1011 findlabel(struct format *addr)
1012 {
1013         int i;
1014
1015         for (i = 0; i < lused; ++i)
1016                 if (addr == lvec[i])
1017                         return i;
1018         return -1;
1019 }
1020
1021 static void
1022 assignlabel(struct format *addr)
1023 {
1024         if (lused >= lallocated) {
1025                 lallocated += 64;
1026                 lvec = (struct format **)
1027                         mh_xrealloc(lvec, sizeof(struct format *) * lallocated);
1028         }
1029
1030         lvec[lused++] = addr;
1031 }
1032
1033 static char *
1034 f_typestr(int t)
1035 {
1036         static char buf[32];
1037
1038         switch (t) {
1039         case FT_COMP: return "COMP";
1040         case FT_COMPF: return "COMPF";
1041         case FT_LIT: return "LIT";
1042         case FT_LITF: return "LITF";
1043         case FT_CHAR: return "CHAR";
1044         case FT_NUM: return "NUM";
1045         case FT_NUMF: return "NUMF";
1046         case FT_STR: return "STR";
1047         case FT_STRF: return "STRF";
1048         case FT_STRFW: return "STRFW";
1049         case FT_STRLIT: return "STRLIT";
1050         case FT_STRLITZ: return "STRLITZ";
1051         case FT_PUTADDR: return "PUTADDR";
1052         case FT_LS_COMP: return "LS_COMP";
1053         case FT_LS_LIT: return "LS_LIT";
1054         case FT_LS_GETENV: return "LS_GETENV";
1055         case FT_LS_CFIND: return "LS_CFIND";
1056         case FT_LS_DECODECOMP: return "LS_DECODECOMP";
1057         case FT_LS_DECODE: return "LS_DECODE";
1058         case FT_LS_TRIM: return "LS_TRIM";
1059         case FT_LV_COMP: return "LV_COMP";
1060         case FT_LV_COMPFLAG: return "LV_COMPFLAG";
1061         case FT_LV_LIT: return "LV_LIT";
1062         case FT_LV_DAT: return "LV_DAT";
1063         case FT_LV_STRLEN: return "LV_STRLEN";
1064         case FT_LV_PLUS_L: return "LV_PLUS_L";
1065         case FT_LV_MINUS_L: return "LV_MINUS_L";
1066         case FT_LV_MULTIPLY_L: return "LV_MULTIPLY_L";
1067         case FT_LV_DIVIDE_L: return "LV_DIVIDE_L";
1068         case FT_LV_MODULO_L: return "LV_MODULO_L";
1069         case FT_LV_CHAR_LEFT: return "LV_CHAR_LEFT";
1070         case FT_LS_MONTH: return "LS_MONTH";
1071         case FT_LS_LMONTH: return "LS_LMONTH";
1072         case FT_LS_ZONE: return "LS_ZONE";
1073         case FT_LS_DAY: return "LS_DAY";
1074         case FT_LS_WEEKDAY: return "LS_WEEKDAY";
1075         case FT_LS_822DATE: return "LS_822DATE";
1076         case FT_LS_PRETTY: return "LS_PRETTY";
1077         case FT_LS_KILO: return "LS_KILO";
1078         case FT_LS_KIBI: return "LS_KIBI";
1079         case FT_LV_SEC: return "LV_SEC";
1080         case FT_LV_MIN: return "LV_MIN";
1081         case FT_LV_HOUR: return "LV_HOUR";
1082         case FT_LV_MDAY: return "LV_MDAY";
1083         case FT_LV_MON: return "LV_MON";
1084         case FT_LV_YEAR: return "LV_YEAR";
1085         case FT_LV_YDAY: return "LV_YDAY";
1086         case FT_LV_WDAY: return "LV_WDAY";
1087         case FT_LV_ZONE: return "LV_ZONE";
1088         case FT_LV_CLOCK: return "LV_CLOCK";
1089         case FT_LV_RCLOCK: return "LV_RCLOCK";
1090         case FT_LV_DAYF: return "LV_DAYF";
1091         case FT_LV_DST: return "LV_DST";
1092         case FT_LV_ZONEF: return "LV_ZONEF";
1093         case FT_LS_PERS: return "LS_PERS";
1094         case FT_LS_MBOX: return "LS_MBOX";
1095         case FT_LS_HOST: return "LS_HOST";
1096         case FT_LS_PATH: return "LS_PATH";
1097         case FT_LS_GNAME: return "LS_GNAME";
1098         case FT_LS_NOTE: return "LS_NOTE";
1099         case FT_LS_ADDR: return "LS_ADDR";
1100         case FT_LS_822ADDR: return "LS_822ADDR";
1101         case FT_LS_FRIENDLY: return "LS_FRIENDLY";
1102         case FT_LV_HOSTTYPE: return "LV_HOSTTYPE";
1103         case FT_LV_INGRPF: return "LV_INGRPF";
1104         case FT_LS_UNQUOTE: return "LS_UNQUOTE";
1105         case FT_LV_NOHOSTF: return "LV_NOHOSTF";
1106         case FT_LOCALDATE: return "LOCALDATE";
1107         case FT_GMTDATE: return "GMTDATE";
1108         case FT_PARSEDATE: return "PARSEDATE";
1109         case FT_PARSEADDR: return "PARSEADDR";
1110         case FT_FORMATADDR: return "FORMATADDR";
1111         case FT_CONCATADDR: return "CONCATADDR";
1112         case FT_MYMBOX: return "MYMBOX";
1113         case FT_GETMYMBOX: return "GETMYMBOX";
1114         case FT_GETMYADDR: return "GETMYADDR";
1115         case FT_SAVESTR: return "SAVESTR";
1116         case FT_DONE: return "DONE";
1117         case FT_PAUSE: return "PAUSE";
1118         case FT_NOP: return "NOP";
1119         case FT_GOTO: return "GOTO";
1120         case FT_IF_S_NULL: return "IF_S_NULL";
1121         case FT_IF_S: return "IF_S";
1122         case FT_IF_V_EQ: return "IF_V_EQ";
1123         case FT_IF_V_NE: return "IF_V_NE";
1124         case FT_IF_V_GT: return "IF_V_GT";
1125         case FT_IF_MATCH: return "IF_MATCH";
1126         case FT_IF_AMATCH: return "IF_AMATCH";
1127         case FT_S_NULL: return "S_NULL";
1128         case FT_S_NONNULL: return "S_NONNULL";
1129         case FT_V_EQ: return "V_EQ";
1130         case FT_V_NE: return "V_NE";
1131         case FT_V_GT: return "V_GT";
1132         case FT_V_MATCH: return "V_MATCH";
1133         case FT_V_AMATCH: return "V_AMATCH";
1134         default:
1135                 snprintf(buf, sizeof(buf), "/* ??? #%d */", t);
1136                 return buf;
1137         }
1138 }
1139
1140 static char *
1141 c_typestr(int t)
1142 {
1143         static char buf[64];
1144
1145         snprintb(buf, sizeof(buf), t, CT_BITS);
1146         return buf;
1147 }
1148
1149 static char *
1150 c_flagsstr(int t)
1151 {
1152         static char buf[64];
1153
1154         snprintb(buf, sizeof(buf), t, CF_BITS);
1155         return buf;
1156 }
1157
1158 static void
1159 litputs(const char *s)
1160 {
1161         if (s) {
1162                 putchar('"');
1163                 while (*s)
1164                         litputc(*s++);
1165                 putchar('"');
1166         } else
1167                 fputs("<nil>", stdout);
1168 }
1169
1170 static void
1171 litputc(char c)
1172 {
1173         if (c & ~ 0177) {
1174                 printf("\\x%02x", (unsigned char) c);
1175         } else if (c < 0x20 || c == 0177) {
1176                 if (c == '\b') {
1177                         putchar('\\');
1178                         putchar('b');
1179                 } else if (c == '\f') {
1180                         putchar('\\');
1181                         putchar('f');
1182                 } else if (c == '\n') {
1183                         putchar('\\');
1184                         putchar('n');
1185                 } else if (c == '\r') {
1186                         putchar('\\');
1187                         putchar('r');
1188                 } else if (c == '\t') {
1189                         putchar('\\');
1190                         putchar('t');
1191                 } else {
1192                         putchar('^');
1193                         putchar(c ^ 0x40);      /* DEL to ?, others to alpha */
1194                 }
1195         } else
1196                 putchar(c);
1197 }
1198
1199 /*
1200  * Routines/code to support the duplicate address suppression code, adapted
1201  * from replsbr.c
1202  */
1203
1204 static char *buf;               /* our current working buffer */
1205 static char *bufend;            /* end of working buffer */
1206 static char *last_dst;          /* buf ptr at end of last call */
1207 static unsigned int bufsiz=0;   /* current size of buf */
1208
1209 #define BUFINCR 512             /* how much to expand buf when if fills */
1210
1211 #define CPY(s) { cp = (s); while ((*dst++ = *cp++)) ; --dst; }
1212
1213 /*
1214  * check if there's enough room in buf for str.
1215  * add more mem if needed
1216  */
1217 #define CHECKMEM(str) \
1218             if ((len = strlen (str)) >= bufend - dst) {\
1219                 int i = dst - buf;\
1220                 int n = last_dst - buf;\
1221                 bufsiz += ((dst + len - bufend) / BUFINCR + 1) * BUFINCR;\
1222                 buf = mh_xrealloc (buf, bufsiz);\
1223                 dst = buf + i;\
1224                 last_dst = buf + n;\
1225                 bufend = buf + bufsiz;\
1226             }
1227
1228
1229 /*
1230  * These are versions of similar routines from replsbr.c; the purpose is
1231  * to suppress duplicate addresses from being added to a list when building
1232  * up addresses for the %(formataddr) format function.  This is used by
1233  * repl to prevent duplicate addresses from being added to the "to" line.
1234  * See replsbr.c for more information.
1235  *
1236  * We can't use the functions in replsbr.c directly because they are slightly
1237  * different and depend on the rest of replsbr.c
1238  */
1239 static char *
1240 test_formataddr (char *orig, char *str)
1241 {
1242     int len;
1243     char error[BUFSIZ];
1244     bool isgroup;
1245     char *dst;
1246     char *cp;
1247     char *sp;
1248     struct mailname *mp = NULL;
1249
1250     /* if we don't have a buffer yet, get one */
1251     if (bufsiz == 0) {
1252         buf = mh_xmalloc (BUFINCR);
1253         last_dst = buf;         /* XXX */
1254         bufsiz = BUFINCR - 6;  /* leave some slop */
1255         bufend = buf + bufsiz;
1256     }
1257     /*
1258      * If "orig" points to our buffer we can just pick up where we
1259      * left off.  Otherwise we have to copy orig into our buffer.
1260      */
1261     if (orig == buf)
1262         dst = last_dst;
1263     else if (!orig || !*orig) {
1264         dst = buf;
1265         *dst = '\0';
1266     } else {
1267         dst = last_dst;         /* XXX */
1268         CHECKMEM (orig);
1269         CPY (orig);
1270     }
1271
1272     /* concatenate all the new addresses onto 'buf' */
1273     for (isgroup = false; (cp = getname (str)); ) {
1274         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
1275             fprintf(stderr, "bad address \"%s\" -- %s\n", cp, error);
1276             continue;
1277         }
1278         if (isgroup && (mp->m_gname || !mp->m_ingrp)) {
1279             *dst++ = ';';
1280             isgroup = false;
1281         }
1282         if (insert (mp)) {
1283             /* if we get here we're going to add an address */
1284             if (dst != buf) {
1285                 *dst++ = ',';
1286                 *dst++ = ' ';
1287             }
1288             if (mp->m_gname) {
1289                 CHECKMEM (mp->m_gname);
1290                 CPY (mp->m_gname);
1291                 isgroup = true;
1292             }
1293             sp = adrformat (mp);
1294             CHECKMEM (sp);
1295             CPY (sp);
1296         }
1297     }
1298
1299     if (isgroup)
1300         *dst++ = ';';
1301
1302     *dst = '\0';
1303     last_dst = dst;
1304     return buf;
1305 }
1306
1307
1308 /*
1309  * The companion to test_formataddr(); it behaves the same way, except doesn't
1310  * do duplicate address detection.
1311  */
1312 static char *
1313 test_concataddr(char *orig, char *str)
1314 {
1315     char *cp;
1316
1317     nodupcheck = true;
1318     cp = test_formataddr(orig, str);
1319     nodupcheck = false;
1320     return cp;
1321 }
1322
1323 static int
1324 insert (struct mailname *np)
1325 {
1326     struct mailname *mp;
1327
1328     if (nodupcheck)
1329         return 1;
1330
1331     if (np->m_mbox == NULL)
1332         return 0;
1333
1334     for (mp = &mq; mp->m_next; mp = mp->m_next) {
1335         if (!strcasecmp (FENDNULL(np->m_host),
1336                          FENDNULL(mp->m_next->m_host)) &&
1337             !strcasecmp (FENDNULL(np->m_mbox),
1338                          FENDNULL(mp->m_next->m_mbox)))
1339             return 0;
1340     }
1341     if (!ccme && ismymbox (np))
1342         return 0;
1343
1344     mp->m_next = np;
1345
1346     return 1;
1347 }
1348
1349 /*
1350  * Reset our duplicate address list
1351  */
1352
1353 void
1354 mlistfree(void)
1355 {
1356     struct mailname *mp, *mp2;
1357
1358     for (mp = mq.m_next; mp; mp = mp2) {
1359         mp2 = mp->m_next;
1360         mnfree(mp);
1361     }
1362 }