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

   1
   2 /*
   3  * mhbuild.c -- expand/translate MIME composition files
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <fcntl.h>
  14 #include <h/signals.h>
  15 #include <h/md5.h>
  16 #include <errno.h>
  17 #include <signal.h>
  18 #include <h/mts.h>
  19 #include <h/tws.h>
  20 #include <h/mime.h>
  21 #include <h/mhparse.h>
  22 #include <h/mhcachesbr.h>
  23 #include <h/utils.h>
  24
  25 #ifdef HAVE_SYS_WAIT_H
  26 # include <sys/wait.h>
  27 #endif
  28
  29 static struct swit switches[] = {
  30 #define CHECKSW                 0
  31     { "check", 0 },
  32 #define NCHECKSW                1
  33     { "nocheck", 0 },
  34 #define EBCDICSW                2
  35     { "ebcdicsafe", 0 },
  36 #define NEBCDICSW               3
  37     { "noebcdicsafe", 0 },
  38 #define HEADSW                  4
  39     { "headers", 0 },
  40 #define NHEADSW                 5
  41     { "noheaders", 0 },
  42 #define LISTSW                  6
  43     { "list", 0 },
  44 #define NLISTSW                 7
  45     { "nolist", 0 },
  46 #define SIZESW                  8
  47     { "realsize", 0 },
  48 #define NSIZESW                 9
  49     { "norealsize", 0 },
  50 #define RFC934SW               10
  51     { "rfc934mode", 0 },
  52 #define NRFC934SW              11
  53     { "norfc934mode", 0 },
  54 #define VERBSW                 12
  55     { "verbose", 0 },
  56 #define NVERBSW                13
  57     { "noverbose", 0 },
  58 #define RCACHESW               14
  59     { "rcache policy", 0 },
  60 #define WCACHESW               15
  61     { "wcache policy", 0 },
  62 #define CONTENTIDSW            16
  63     { "contentid", 0 },
  64 #define NCONTENTIDSW           17
  65     { "nocontentid", 0 },
  66 #define VERSIONSW              18
  67     { "version", 0 },
  68 #define HELPSW                 19
  69     { "help", 0 },
  70 #define DEBUGSW                20
  71     { "debug", -5 },
  72     { NULL, 0 }
  73 };
  74
  75
  76 /* mhbuildsbr.c */
  77 extern char *tmp;       /* directory to place temp files */
  78
  79 /* mhcachesbr.c */
  80 extern int rcachesw;
  81 extern int wcachesw;
  82 extern char *cache_public;
  83 extern char *cache_private;
  84
  85 int debugsw = 0;
  86 int verbosw = 0;
  87
  88 int ebcdicsw = 0;
  89 int listsw   = 0;
  90 int rfc934sw = 0;
  91 int contentidsw = 1;
  92
  93 /*
  94  * Temporary files
  95  */
  96 static char infile[BUFSIZ];
  97 static int unlink_infile  = 0;
  98
  99 static char outfile[BUFSIZ];
 100 static int unlink_outfile = 0;
 101
 102 static void unlink_done (int) NORETURN;
 103
 104 /* mhbuildsbr.c */
 105 CT build_mime (char *);
 106 int output_message (CT, char *);
 107 int output_message_fp (CT, FILE *, char*);
 108
 109 /* mhlistsbr.c */
 110 int list_all_messages (CT *, int, int, int, int);
 111
 112 /* mhmisc.c */
 113 void set_endian (void);
 114
 115 /* mhfree.c */
 116 void free_content (CT);
 117
 118
 119 int
 120 main (int argc, char **argv)
 121 {
 122     int sizesw = 1, headsw = 1;
 123     int *icachesw;
 124     char *cp, buf[BUFSIZ];
 125     char buffer[BUFSIZ], *compfile = NULL;
 126     char **argp, **arguments;
 127     CT ct, cts[2];
 128     FILE *fp = NULL;
 129     FILE *fp_out = NULL;
 130
 131     done=unlink_done;
 132
 133 #ifdef LOCALE
 134     setlocale(LC_ALL, "");
 135 #endif
 136     invo_name = r1bindex (argv[0], '/');
 137
 138     /* read user profile/context */
 139     context_read();
 140
 141     arguments = getarguments (invo_name, argc, argv, 1);
 142     argp = arguments;
 143
 144     while ((cp = *argp++)) {
 145         if (cp[0] == '-' && cp[1] == '\0') {
 146             if (compfile)
 147                 adios (NULL, "cannot specify both standard input and a file");
 148             else
 149                 compfile = cp;
 150             listsw = 0;         /* turn off -list if using standard in/out */
 151             verbosw = 0;        /* turn off -verbose listings */
 152             break;
 153         }
 154         if (*cp == '-') {
 155             switch (smatch (++cp, switches)) {
 156             case AMBIGSW:
 157                 ambigsw (cp, switches);
 158                 done (1);
 159             case UNKWNSW:
 160                 adios (NULL, "-%s unknown", cp);
 161
 162             case HELPSW:
 163                 snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
 164                 print_help (buf, switches, 1);
 165                 done (1);
 166             case VERSIONSW:
 167                 print_version(invo_name);
 168                 done (1);
 169
 170             case RCACHESW:
 171                 icachesw = &rcachesw;
 172                 goto do_cache;
 173             case WCACHESW:
 174                 icachesw = &wcachesw;
 175             do_cache: ;
 176                 if (!(cp = *argp++) || *cp == '-')
 177                     adios (NULL, "missing argument to %s", argp[-2]);
 178                 switch (*icachesw = smatch (cp, caches)) {
 179                 case AMBIGSW:
 180                     ambigsw (cp, caches);
 181                     done (1);
 182                 case UNKWNSW:
 183                     adios (NULL, "%s unknown", cp);
 184                 default:
 185                     break;
 186                 }
 187                 continue;
 188
 189             case CHECKSW:
 190                 checksw++;
 191                 continue;
 192             case NCHECKSW:
 193                 checksw = 0;
 194                 continue;
 195
 196             case EBCDICSW:
 197                 ebcdicsw++;
 198                 continue;
 199             case NEBCDICSW:
 200                 ebcdicsw = 0;
 201                 continue;
 202
 203             case HEADSW:
 204                 headsw++;
 205                 continue;
 206             case NHEADSW:
 207                 headsw = 0;
 208                 continue;
 209
 210             case LISTSW:
 211                 listsw++;
 212                 continue;
 213             case NLISTSW:
 214                 listsw = 0;
 215                 continue;
 216
 217             case RFC934SW:
 218                 rfc934sw++;
 219                 continue;
 220             case NRFC934SW:
 221                 rfc934sw = 0;
 222                 continue;
 223
 224             case SIZESW:
 225                 sizesw++;
 226                 continue;
 227             case NSIZESW:
 228                 sizesw = 0;
 229                 continue;
 230
 231             case CONTENTIDSW:
 232                 contentidsw = 1;
 233                 continue;
 234             case NCONTENTIDSW:
 235                 contentidsw = 0;
 236                 continue;
 237
 238             case VERBSW:
 239                 verbosw++;
 240                 continue;
 241             case NVERBSW:
 242                 verbosw = 0;
 243                 continue;
 244             case DEBUGSW:
 245                 debugsw = 1;
 246                 continue;
 247             }
 248         }
 249         if (compfile)
 250             adios (NULL, "only one composition file allowed");
 251         else
 252             compfile = cp;
 253     }
 254
 255     set_endian ();
 256
 257     if ((cp = getenv ("MM_NOASK")) && !strcmp (cp, "1"))
 258         listsw  = 0;
 259
 260     /*
 261      * Check if we've specified an additional profile
 262      */
 263     if ((cp = getenv ("MHBUILD"))) {
 264         if ((fp = fopen (cp, "r"))) {
 265             readconfig ((struct node **) 0, fp, cp, 0);
 266             fclose (fp);
 267         } else {
 268             admonish ("", "unable to read $MHBUILD profile (%s)", cp);
 269         }
 270     }
 271
 272     /*
 273      * Read the standard profile setup
 274      */
 275     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 276         readconfig ((struct node **) 0, fp, cp, 0);
 277         fclose (fp);
 278     }
 279
 280     /* Check for public cache location */
 281     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 282         cache_public = NULL;
 283
 284     /* Check for private cache location */
 285     if (!(cache_private = context_find (nmhprivcache)))
 286         cache_private = ".cache";
 287     cache_private = getcpy (m_maildir (cache_private));
 288
 289     /*
 290      * Check for storage directory.  If defined, we
 291      * will store temporary files there.  Else we
 292      * store them in standard nmh directory.
 293      */
 294     if ((cp = context_find (nmhstorage)) && *cp)
 295         tmp = concat (cp, "/", invo_name, NULL);
 296     else
 297         tmp = add (m_maildir (invo_name), NULL);
 298
 299     if (!context_find ("path"))
 300         free (path ("./", TFOLDER));
 301
 302     /* Check if we have a file to process */
 303     if (!compfile)
 304         adios (NULL, "need to specify a %s composition file", invo_name);
 305
 306     /*
 307      * Process the composition file from standard input.
 308      */
 309     if (compfile[0] == '-' && compfile[1] == '\0') {
 310         /* copy standard input to temporary file */
 311         strncpy (infile, m_mktemp(invo_name, NULL, &fp), sizeof(infile));
 312         while (fgets (buffer, BUFSIZ, stdin))
 313             fputs (buffer, fp);
 314         fclose (fp);
 315         unlink_infile = 1;
 316
 317         /* build the content structures for MIME message */
 318         ct = build_mime (infile);
 319         cts[0] = ct;
 320         cts[1] = NULL;
 321
 322         /* output MIME message to this temporary file */
 323         strncpy (outfile, m_mktemp(invo_name, NULL, &fp_out), sizeof(outfile));
 324         unlink_outfile = 1;
 325
 326         /* output the message */
 327         output_message_fp (ct, fp_out, outfile);
 328         fclose(fp_out);
 329
 330         /* output the temp file to standard output */
 331         if ((fp = fopen (outfile, "r")) == NULL)
 332             adios (outfile, "unable to open");
 333         while (fgets (buffer, BUFSIZ, fp))
 334             fputs (buffer, stdout);
 335         fclose (fp);
 336
 337         unlink (infile);
 338         unlink_infile = 0;
 339
 340         unlink (outfile);
 341         unlink_outfile = 0;
 342
 343         free_content (ct);
 344         done (0);
 345     }
 346
 347     /*
 348      * Process the composition file from a file.
 349      */
 350
 351     /* build the content structures for MIME message */
 352     ct = build_mime (compfile);
 353     cts[0] = ct;
 354     cts[1] = NULL;
 355
 356     /* output MIME message to this temporary file */
 357     strncpy(outfile, m_mktemp2(compfile, invo_name, NULL, &fp_out),
 358             sizeof(outfile));
 359     unlink_outfile = 1;
 360
 361     /* output the message */
 362     output_message_fp (ct, fp_out, outfile);
 363     fclose(fp_out);
 364
 365     /*
 366      * List the message info
 367      */
 368     if (listsw)
 369         list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 370
 371     /* Rename composition draft */
 372     snprintf (buffer, sizeof(buffer), "%s.orig", m_backup (compfile));
 373     if (rename (compfile, buffer) == NOTOK) {
 374         adios (compfile, "unable to rename comp draft %s to", buffer);
 375     }
 376
 377     /* Rename output file to take its place */
 378     if (rename (outfile, compfile) == NOTOK) {
 379         advise (outfile, "unable to rename output %s to", compfile);
 380         rename (buffer, compfile);
 381         done (1);
 382     }
 383     unlink_outfile = 0;
 384
 385     free_content (ct);
 386     done (0);
 387     return 1;
 388 }
 389
 390
 391 static void
 392 unlink_done (int status)
 393 {
 394     /*
 395      * Check if we need to remove stray
 396      * temporary files.
 397      */
 398     if (unlink_infile)
 399         unlink (infile);
 400     if (unlink_outfile)
 401         unlink (outfile);
 402
 403     exit (status);
 404 }