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

   1
   2 /*
   3  * mhbuild.c -- expand/translate MIME composition files
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <fcntl.h>
  12 #include <h/signals.h>
  13 #include <h/md5.h>
  14 #include <errno.h>
  15 #include <signal.h>
  16 #include <h/mts.h>
  17 #include <h/tws.h>
  18 #include <h/mime.h>
  19 #include <h/mhparse.h>
  20 #include <h/mhcachesbr.h>
  21 #include <h/utils.h>
  22
  23 static struct swit switches[] = {
  24 #define CHECKSW                 0
  25     { "check", 0 },
  26 #define NCHECKSW                1
  27     { "nocheck", 0 },
  28 #define DIRECTIVES              2
  29     { "directives", 0 },
  30 #define NDIRECTIVES             3
  31     { "nodirectives", 0 },
  32 #define EBCDICSW                4
  33     { "ebcdicsafe", 0 },
  34 #define NEBCDICSW               5
  35     { "noebcdicsafe", 0 },
  36 #define HEADSW                  6
  37     { "headers", 0 },
  38 #define NHEADSW                 7
  39     { "noheaders", 0 },
  40 #define LISTSW                  8
  41     { "list", 0 },
  42 #define NLISTSW                 9
  43     { "nolist", 0 },
  44 #define SIZESW                 10
  45     { "realsize", 0 },
  46 #define NSIZESW                11
  47     { "norealsize", 0 },
  48 #define RFC934SW               12
  49     { "rfc934mode", 0 },
  50 #define NRFC934SW              13
  51     { "norfc934mode", 0 },
  52 #define VERBSW                 14
  53     { "verbose", 0 },
  54 #define NVERBSW                15
  55     { "noverbose", 0 },
  56 #define RCACHESW               16
  57     { "rcache policy", 0 },
  58 #define WCACHESW               17
  59     { "wcache policy", 0 },
  60 #define CONTENTIDSW            18
  61     { "contentid", 0 },
  62 #define NCONTENTIDSW           19
  63     { "nocontentid", 0 },
  64 #define VERSIONSW              20
  65     { "version", 0 },
  66 #define HELPSW                 21
  67     { "help", 0 },
  68 #define DEBUGSW                22
  69     { "debug", -5 },
  70     { NULL, 0 }
  71 };
  72
  73
  74 /* mhbuildsbr.c */
  75 extern char *tmp;       /* directory to place temp files */
  76
  77 /* mhcachesbr.c */
  78 extern int rcachesw;
  79 extern int wcachesw;
  80 extern char *cache_public;
  81 extern char *cache_private;
  82
  83 int debugsw = 0;
  84 int verbosw = 0;
  85
  86 int ebcdicsw = 0;
  87 int listsw   = 0;
  88 int rfc934sw = 0;
  89 int contentidsw = 1;
  90
  91 /*
  92  * Temporary files
  93  */
  94 static char infile[BUFSIZ];
  95 static int unlink_infile  = 0;
  96
  97 static char outfile[BUFSIZ];
  98 static int unlink_outfile = 0;
  99
 100 static void unlink_done (int) NORETURN;
 101
 102 /* mhbuildsbr.c */
 103 CT build_mime (char *, int);
 104 int output_message (CT, char *);
 105 int output_message_fp (CT, FILE *, char*);
 106
 107 /* mhlistsbr.c */
 108 int list_all_messages (CT *, int, int, int, int);
 109
 110 /* mhfree.c */
 111 void free_content (CT);
 112
 113
 114 int
 115 main (int argc, char **argv)
 116 {
 117     int sizesw = 1, headsw = 1, directives = 1;
 118     int *icachesw;
 119     char *cp, buf[BUFSIZ];
 120     char buffer[BUFSIZ], *compfile = NULL;
 121     char **argp, **arguments;
 122     CT ct, cts[2];
 123     FILE *fp = NULL;
 124     FILE *fp_out = NULL;
 125
 126     done=unlink_done;
 127
 128 #ifdef LOCALE
 129     setlocale(LC_ALL, "");
 130 #endif
 131     invo_name = r1bindex (argv[0], '/');
 132
 133     /* read user profile/context */
 134     context_read();
 135
 136     arguments = getarguments (invo_name, argc, argv, 1);
 137     argp = arguments;
 138
 139     while ((cp = *argp++)) {
 140         if (cp[0] == '-' && cp[1] == '\0') {
 141             if (compfile)
 142                 adios (NULL, "cannot specify both standard input and a file");
 143             else
 144                 compfile = cp;
 145             listsw = 0;         /* turn off -list if using standard in/out */
 146             verbosw = 0;        /* turn off -verbose listings */
 147             break;
 148         }
 149         if (*cp == '-') {
 150             switch (smatch (++cp, switches)) {
 151             case AMBIGSW:
 152                 ambigsw (cp, switches);
 153                 done (1);
 154             case UNKWNSW:
 155                 adios (NULL, "-%s unknown", cp);
 156
 157             case HELPSW:
 158                 snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
 159                 print_help (buf, switches, 1);
 160                 done (0);
 161             case VERSIONSW:
 162                 print_version(invo_name);
 163                 done (0);
 164
 165             case RCACHESW:
 166                 icachesw = &rcachesw;
 167                 goto do_cache;
 168             case WCACHESW:
 169                 icachesw = &wcachesw;
 170             do_cache: ;
 171                 if (!(cp = *argp++) || *cp == '-')
 172                     adios (NULL, "missing argument to %s", argp[-2]);
 173                 switch (*icachesw = smatch (cp, caches)) {
 174                 case AMBIGSW:
 175                     ambigsw (cp, caches);
 176                     done (1);
 177                 case UNKWNSW:
 178                     adios (NULL, "%s unknown", cp);
 179                 default:
 180                     break;
 181                 }
 182                 continue;
 183
 184             case CHECKSW:
 185                 checksw++;
 186                 continue;
 187             case NCHECKSW:
 188                 checksw = 0;
 189                 continue;
 190
 191             case EBCDICSW:
 192                 ebcdicsw++;
 193                 continue;
 194             case NEBCDICSW:
 195                 ebcdicsw = 0;
 196                 continue;
 197
 198             case HEADSW:
 199                 headsw++;
 200                 continue;
 201             case NHEADSW:
 202                 headsw = 0;
 203                 continue;
 204
 205             case DIRECTIVES:
 206                 directives = 1;
 207                 continue;
 208             case NDIRECTIVES:
 209                 directives = 0;
 210                 continue;
 211
 212             case LISTSW:
 213                 listsw++;
 214                 continue;
 215             case NLISTSW:
 216                 listsw = 0;
 217                 continue;
 218
 219             case RFC934SW:
 220                 rfc934sw++;
 221                 continue;
 222             case NRFC934SW:
 223                 rfc934sw = 0;
 224                 continue;
 225
 226             case SIZESW:
 227                 sizesw++;
 228                 continue;
 229             case NSIZESW:
 230                 sizesw = 0;
 231                 continue;
 232
 233             case CONTENTIDSW:
 234                 contentidsw = 1;
 235                 continue;
 236             case NCONTENTIDSW:
 237                 contentidsw = 0;
 238                 continue;
 239
 240             case VERBSW:
 241                 verbosw++;
 242                 continue;
 243             case NVERBSW:
 244                 verbosw = 0;
 245                 continue;
 246             case DEBUGSW:
 247                 debugsw = 1;
 248                 continue;
 249             }
 250         }
 251         if (compfile)
 252             adios (NULL, "only one composition file allowed");
 253         else
 254             compfile = cp;
 255     }
 256
 257     /*
 258      * Check if we've specified an additional profile
 259      */
 260     if ((cp = getenv ("MHBUILD"))) {
 261         if ((fp = fopen (cp, "r"))) {
 262             readconfig ((struct node **) 0, fp, cp, 0);
 263             fclose (fp);
 264         } else {
 265             admonish ("", "unable to read $MHBUILD profile (%s)", cp);
 266         }
 267     }
 268
 269     /*
 270      * Read the standard profile setup
 271      */
 272     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 273         readconfig ((struct node **) 0, fp, cp, 0);
 274         fclose (fp);
 275     }
 276
 277     /* Check for public cache location */
 278     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 279         cache_public = NULL;
 280
 281     /* Check for private cache location */
 282     if (!(cache_private = context_find (nmhprivcache)))
 283         cache_private = ".cache";
 284     cache_private = getcpy (m_maildir (cache_private));
 285
 286     /*
 287      * Check for storage directory.  If defined, we
 288      * will store temporary files there.  Else we
 289      * store them in standard nmh directory.
 290      */
 291     if ((cp = context_find (nmhstorage)) && *cp)
 292         tmp = concat (cp, "/", invo_name, NULL);
 293     else
 294         tmp = add (m_maildir (invo_name), NULL);
 295
 296     if (!context_find ("path"))
 297         free (path ("./", TFOLDER));
 298
 299     /* Check if we have a file to process */
 300     if (!compfile)
 301         adios (NULL, "need to specify a %s composition file", invo_name);
 302
 303     /*
 304      * Process the composition file from standard input.
 305      */
 306     if (compfile[0] == '-' && compfile[1] == '\0') {
 307         /* copy standard input to temporary file */
 308         strncpy (infile, m_mktemp(invo_name, NULL, &fp), sizeof(infile));
 309         while (fgets (buffer, BUFSIZ, stdin))
 310             fputs (buffer, fp);
 311         fclose (fp);
 312         unlink_infile = 1;
 313
 314         /* build the content structures for MIME message */
 315         ct = build_mime (infile, directives);
 316         cts[0] = ct;
 317         cts[1] = NULL;
 318
 319         /* output MIME message to this temporary file */
 320         strncpy (outfile, m_mktemp(invo_name, NULL, &fp_out), sizeof(outfile));
 321         unlink_outfile = 1;
 322
 323         /* output the message */
 324         output_message_fp (ct, fp_out, outfile);
 325         fclose(fp_out);
 326
 327         /* output the temp file to standard output */
 328         if ((fp = fopen (outfile, "r")) == NULL)
 329             adios (outfile, "unable to open");
 330         while (fgets (buffer, BUFSIZ, fp))
 331             fputs (buffer, stdout);
 332         fclose (fp);
 333
 334         unlink (infile);
 335         unlink_infile = 0;
 336
 337         unlink (outfile);
 338         unlink_outfile = 0;
 339
 340         free_content (ct);
 341         done (0);
 342     }
 343
 344     /*
 345      * Process the composition file from a file.
 346      */
 347
 348     /* build the content structures for MIME message */
 349     ct = build_mime (compfile, directives);
 350     cts[0] = ct;
 351     cts[1] = NULL;
 352
 353     /* output MIME message to this temporary file */
 354     strncpy(outfile, m_mktemp2(compfile, invo_name, NULL, &fp_out),
 355             sizeof(outfile));
 356     unlink_outfile = 1;
 357
 358     /* output the message */
 359     output_message_fp (ct, fp_out, outfile);
 360     fclose(fp_out);
 361
 362     /*
 363      * List the message info
 364      */
 365     if (listsw)
 366         list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 367
 368     /* Rename composition draft */
 369     snprintf (buffer, sizeof(buffer), "%s.orig", m_backup (compfile));
 370     if (rename (compfile, buffer) == NOTOK) {
 371         adios (compfile, "unable to rename comp draft %s to", buffer);
 372     }
 373
 374     /* Rename output file to take its place */
 375     if (rename (outfile, compfile) == NOTOK) {
 376         advise (outfile, "unable to rename output %s to", compfile);
 377         rename (buffer, compfile);
 378         done (1);
 379     }
 380     unlink_outfile = 0;
 381
 382     free_content (ct);
 383     done (0);
 384     return 1;
 385 }
 386
 387
 388 static void
 389 unlink_done (int status)
 390 {
 391     /*
 392      * Check if we need to remove stray
 393      * temporary files.
 394      */
 395     if (unlink_infile)
 396         unlink (infile);
 397     if (unlink_outfile)
 398         unlink (outfile);
 399
 400     exit (status);
 401 }