ydr/main.c

   1 /*
   2  * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 RCSID("$Id$");
  37 #endif
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43 #include <roken.h>
  44 #include "sym.h"
  45 #include "output.h"
  46 #include <err.h>
  47 #include <roken.h>
  48
  49 extern FILE *yyin;
  50
  51 int parse_errors;
  52
  53 /*
  54  * ydr - generate stub routines for encode/decoding and RX
  55  */
  56
  57 int yyparse(void);
  58
  59 /*
  60  * Return the basename of `s'.
  61  * The result is malloc'ed.
  62  */
  63
  64 static char *
  65 ydr_basename (const char *s)
  66 {
  67      const char *p, *q;
  68      char *res;
  69
  70      p = strrchr (s, '/');
  71      if (p == NULL)
  72           p = s;
  73      else
  74           ++p;
  75      q = strchr (p, '.');
  76      if (q == NULL)
  77           q = s + strlen (s);
  78      res = malloc (q - p + 1);
  79      if (res == NULL)
  80          return NULL;
  81      memmove (res, p, q - p);
  82      res[q - p] = '\0';
  83      return res;
  84 }
  85
  86 /*
  87  *
  88  */
  89
  90 int
  91 main (int argc, char **argv)
  92 {
  93     int ret;
  94     FILE *foo;
  95     char tmp_filename[64];
  96     char *cpp = CPP;
  97     int arglen;
  98     int i;
  99     char *arg;
 100     char *filename;
 101
 102     if (argc < 2)
 103         errx (1, "Usage: %s [cpp-arguments] filename", argv[0]);
 104
 105     snprintf (tmp_filename, sizeof(tmp_filename),
 106               "ydr_tmp_%u.c", (unsigned)getpid());
 107     foo = fopen (tmp_filename, "w");
 108     if (foo == NULL)
 109         err (1, "error opening %s", tmp_filename);
 110     filename = ydr_basename (argv[argc - 1]);
 111     fprintf (foo, "#include \"%s\"\n", argv[argc - 1]);
 112     fclose (foo);
 113
 114     initsym ();
 115     init_generate (filename);
 116
 117     arglen = strlen(cpp) + 1;
 118     for (i = 1; i < argc - 1; ++i) {
 119         arglen += strlen (argv[i]) + 1;
 120     }
 121     arglen += strlen(tmp_filename) + 1;
 122
 123     arg = malloc (arglen);
 124     if (arg == NULL) {
 125         unlink (tmp_filename);
 126         errx (1, "malloc: out of memory");
 127     }
 128     strcpy (arg, cpp);
 129     strcat (arg, " ");
 130     for (i = 1; i < argc - 1; ++i) {
 131         strcat (arg, argv[i]);
 132         strcat (arg, " ");
 133     }
 134     strcat (arg, tmp_filename);
 135
 136     yyin = popen (arg, "r");
 137     if (yyin == NULL) {
 138         unlink (tmp_filename);
 139         err (1, "popen `%s'", arg);
 140     }
 141     free (arg);
 142     ret = yyparse ();
 143     generate_server_switch (serverfile.stream, serverhdrfile.stream);
 144     pclose (yyin);
 145     close_generator (filename);
 146     unlink (tmp_filename);
 147
 148     return ret + parse_errors;
 149 }
 150