soltools/cpp/_unix.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <stdio.h>
  21 #include <stddef.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <ctype.h>
  25 #include <fcntl.h>
  26 #if (defined(_WIN32) || defined(__IBMC__))
  27 #include <io.h>
  28 #else
  29 #include <unistd.h>
  30 #endif
  31
  32 #include "cpp.h"
  33
  34 #if defined(MACOSX) || defined(_WIN32)
  35 #include "_getopt.h"
  36 #else
  37 #include <getopt.h>
  38 #endif
  39
  40 int Pflag = 0;                          /* print no line information */
  41 int Iflag = 0;                          /* print includes */
  42 int Mflag = 0;                          /* print macro expansion */
  43 int Xflag = 0;                          /* print pragma for include/import */
  44 int Vflag = 0;                          /* verbose flag */
  45 int Cflag = 0;                          /* do not remove any comments */
  46 int Dflag = 0;                          /* add parameter check to delete op */
  47 int Cplusplus = 0;
  48
  49 void
  50     setup(int argc, char **argv)
  51 {
  52     int c, fd, i, n;
  53     char *fp, *dp;
  54     Tokenrow tr;
  55
  56     setup_kwtab();
  57 #if defined(MACOSX) || defined(_WIN32)
  58     while ((c = stgetopt(argc, argv, "NOPV:I:D:U:F:A:X:u:l:+")) != -1)
  59 #else
  60     while ((c = getopt(argc, argv, "NOPV:I:D:U:F:A:X:u:l:+")) != -1)
  61 #endif
  62         switch (c)
  63         {
  64             case 'N':
  65                 for (i = 0; i < NINCLUDE; i++)
  66                     if (includelist[i].always == 1)
  67                         includelist[i].deleted = 1;
  68                 break;
  69
  70             case 'I':
  71                 for (i = NINCLUDE - 2; i >= 0; i--)
  72                 {
  73                     if (includelist[i].file == NULL)
  74                     {
  75                         includelist[i].always = 1;
  76                         includelist[i].file = optarg;
  77                         break;
  78                     }
  79                 }
  80                 if (i < 0)
  81                     error(FATAL, "Too many -I directives");
  82                 break;
  83
  84             case 'D':
  85             case 'U':
  86             case 'A':
  87                 setsource("<cmdarg>", -1, -1, optarg, 0);
  88                 maketokenrow(3, &tr);
  89                 // coverity[overrun-buffer-arg: FALSE] - a multiple of trp->max is allocated, not trp->max itself
  90                 gettokens(&tr, 1);
  91                 doadefine(&tr, c);
  92                 dofree(tr.bp);
  93                 unsetsource();
  94                 break;
  95
  96             case 'P':                   /* Lineinfo */
  97                 Pflag++;
  98                 break;
  99
 100             case 'V':
 101                 for (n = 0;; n++)
 102                 {
 103                     c = optarg[n];
 104                     if (c == '\0')
 105                         break;
 106                     switch (c)
 107                     {
 108                         case 'i':
 109                             Iflag++;
 110                             break;
 111
 112                         case 'm':
 113                             Mflag = 1;
 114                             break;
 115
 116                         case 'x':
 117                             Mflag = 2;
 118                             break;
 119
 120                         case 't':
 121                             Vflag++;
 122                             break;
 123
 124                         case 'v':
 125                             fprintf(stderr, "%s\n", argv[0]);
 126                             break;
 127
 128                         default:
 129                             error(WARNING, "Unknown verbose option %c", c);
 130                     }
 131                 }
 132                 break;
 133
 134             case 'X':
 135                 for (n = 0;; n++)
 136                 {
 137                     c = optarg[n];
 138                     if (c == '\0')
 139                         break;
 140                     switch (c)
 141                     {
 142                         case 'i':
 143                             Xflag++;
 144                             break;
 145
 146                         case 'c':
 147                             Cflag++;
 148                             break;
 149
 150                         case 'd':
 151                             Dflag++;
 152                             break;
 153
 154                         case 'w':
 155                             dp = &optarg[n + 1];
 156                             n += (int)strlen(dp);
 157                             while (isspace((unsigned char)*dp)) dp++;
 158
 159                             for (i = NINCLUDE - 1; i >= 0; i--)
 160                             {
 161                                 if (wraplist[i].file == NULL)
 162                                 {
 163                                     wraplist[i].file = dp;
 164                                     break;
 165                                 }
 166                             }
 167                             if (i < 0)
 168                                 error(WARNING, "Too many -Xw directives");
 169                             break;
 170
 171                         default:
 172                             error(WARNING, "Unknown extension option %c", c);
 173                     }
 174                 }
 175                 break;
 176
 177             case '+':
 178                 Cplusplus++;
 179                 break;
 180
 181             case 'u':                   /* -undef for GCC (dummy) */
 182             case 'l':                   /* -lang-c++ for GCC (dummy) */
 183                 break;
 184
 185             default:
 186                 break;
 187         }
 188     dp = ".";
 189     fp = "<stdin>";
 190     fd = 0;
 191     if (optind < argc)
 192     {
 193         if ((fp = strrchr(argv[optind], '/')) != NULL)
 194         {
 195             int len = (int)(fp - argv[optind]);
 196
 197             dp = (char *) newstring((uchar *) argv[optind], len + 1, 0);
 198             dp[len] = '\0';
 199         }
 200         fp = (char *) newstring((uchar *) argv[optind], strlen(argv[optind]), 0);
 201         if ((fd = open(fp, O_RDONLY)) <= 0)
 202             error(FATAL, "Can't open input file %s", fp);
 203     }
 204
 205     if (optind + 1 < argc)
 206     {
 207         int fdo = creat(argv[optind + 1], 0666);
 208
 209         if (fdo < 0)
 210             error(FATAL, "Can't open output file %s", argv[optind + 1]);
 211
 212         dup2(fdo, 1);
 213         // coverity[leaked_handle] - on purpose
 214     }
 215     includelist[NINCLUDE - 1].always = 0;
 216     includelist[NINCLUDE - 1].file = dp;
 217     setsource(fp, -1, fd, NULL, 0);
 218 }
 219
 220
 221 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */