external/bsd/am-utils/dist/amd/sun2amd.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1997-2009 Erez Zadok
   5  * Copyright (c) 2005 Daniel P. Ottavio
   6  * Copyright (c) 1989 Jan-Simon Pendry
   7  * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
   8  * Copyright (c) 1989 The Regents of the University of California.
   9  * All rights reserved.
  10  *
  11  * This code is derived from software contributed to Berkeley by
  12  * Jan-Simon Pendry at Imperial College, London.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and/or other materials provided with the distribution.
  22  * 3. All advertising materials mentioning features or use of this software
  23  *    must display the following acknowledgment:
  24  *      This product includes software developed by the University of
  25  *      California, Berkeley and its contributors.
  26  * 4. Neither the name of the University nor the names of its contributors
  27  *    may be used to endorse or promote products derived from this software
  28  *    without specific prior written permission.
  29  *
  30  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  31  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  32  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  33  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  34  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  38  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  39  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  40  * SUCH DAMAGE.
  41  *
  42  *
  43  * File: am-utils/amd/sun2amd.c
  44  *
  45  */
  46
  47 /*
  48  * Translate Sun-syntax maps to Amd maps
  49  */
  50
  51 #ifdef HAVE_CONFIG_H
  52 # include <config.h>
  53 #endif /* HAVE_CONFIG_H */
  54 #include <am_defs.h>
  55 #include <amd.h>
  56 #include <sun_map.h>
  57
  58
  59 /* dummies to make the program compile and link */
  60 struct amu_global_options gopt;
  61 #if defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP)
  62 # ifdef NEED_LIBWRAP_SEVERITY_VARIABLES
  63 /*
  64  * Some systems that define libwrap already define these two variables
  65  * in libwrap, while others don't: so I need to know precisely iff
  66  * to define these two severity variables.
  67  */
  68 int allow_severity=0, deny_severity=0, rfc931_timeout=0;
  69 # endif /* NEED_LIBWRAP_SEVERITY_VARIABLES */
  70 #endif /* defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) */
  71
  72
  73 /*
  74  * Parse the stream sun_in, convert the map information to amd, write
  75  * the results to amd_out.
  76  */
  77 static int
  78 sun2amd_convert(FILE *sun_in, FILE *amd_out)
  79 {
  80   char line_buff[INFO_MAX_LINE_LEN], *tmp, *key, *entry;
  81   int pos, line = 0, retval = 1;
  82
  83   /* just to be safe */
  84   memset(line_buff, 0, sizeof(line_buff));
  85
  86   /* Read the input line by line and do the conversion. */
  87   while ((pos = file_read_line(line_buff, sizeof(line_buff), sun_in))) {
  88     line++;
  89     line_buff[pos - 1] = '\0';
  90
  91     /* remove comments */
  92     if ((tmp = strchr(line_buff, '#')) != NULL) {
  93       *tmp = '\0';
  94     }
  95
  96     /* find start of key */
  97     key = line_buff;
  98     while (*key != '\0' && isspace((unsigned char)*key)) {
  99       key++;
 100     }
 101
 102     /* ignore blank lines */
 103     if (*key == '\0') {
 104       continue;
 105     }
 106
 107     /* find the end of the key and NULL terminate */
 108     tmp = key;
 109     while (*tmp != '\0' && isspace((unsigned char)*tmp) == 0) {
 110       tmp++;
 111     }
 112     if (*tmp == '\0') {
 113       plog(XLOG_ERROR, "map line %d has no entry", line);
 114       goto err;
 115     }
 116     *tmp++ = '\0';
 117     if (*tmp == '\0') {
 118       plog(XLOG_ERROR, "map line %d has no entry", line);
 119       goto err;
 120     }
 121     entry = tmp;
 122
 123     /* convert the sun entry to an amd entry */
 124     if ((tmp = sun_entry2amd(key, entry)) == NULL) {
 125       plog(XLOG_ERROR, "parse error on line %d", line);
 126       goto err;
 127     }
 128
 129     if (fprintf(amd_out, "%s %s\n", key, tmp) < 0) {
 130       plog(XLOG_ERROR, "can't write to output stream: %s", strerror(errno));
 131       goto err;
 132     }
 133
 134     /* just to be safe */
 135     memset(line_buff, 0, sizeof(line_buff));
 136   }
 137
 138   /* success */
 139   retval = 0;
 140
 141  err:
 142   return retval;
 143 }
 144
 145
 146 /*
 147  * wrapper open function
 148  */
 149 static FILE *
 150 sun2amd_open(const char *path, const char *mode)
 151 {
 152   FILE *retval = NULL;
 153
 154   if ((retval = fopen(path,mode)) == NULL) {
 155     plog(XLOG_ERROR,"could not open file %s",path);
 156   }
 157
 158   return retval;
 159 }
 160
 161
 162 /*
 163  * echo the usage and exit
 164  */
 165 static void
 166 sun2amd_usage(void)
 167 {
 168   fprintf(stderr,
 169           "usage : sun2amd [-hH] [-i infile] [-o outfile]\n"
 170           "-h\thelp\n"
 171           "-i\tspecify an infile (defaults to stdin)\n"
 172           "-o\tspecify an outfile (defaults to stdout)\n");
 173 }
 174
 175
 176 int
 177 main(int argc, char **argv)
 178 {
 179   /* default in/out to stdin/stdout */
 180   FILE *sun_in = stdin, *amd_out = stdout;
 181   int opt, retval = 1;
 182
 183   while ((opt = getopt(argc, argv , "i:o:hH")) != -1) {
 184     switch (opt) {
 185
 186     case 'i':
 187       if ((sun_in = sun2amd_open(optarg,"r")) == NULL) {
 188         goto err;
 189       }
 190       break;
 191
 192     case 'o':
 193       if ((amd_out = sun2amd_open(optarg,"w")) == NULL) {
 194         goto err;
 195       }
 196       break;
 197
 198     case 'h':
 199     case 'H':
 200       sun2amd_usage();
 201       goto err;
 202     }
 203   }
 204
 205   retval = sun2amd_convert(sun_in,amd_out);
 206
 207  err:
 208   exit(retval);
 209 }