lib/roken/test-readenv.c

   1 /*
   2  * Copyright (c) 2005 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 "roken.h"
  40 #include "test-mem.h"
  41
  42 char *s1 = "VAR1=VAL1#comment\n\
  43 VAR2=VAL2 VAL2 #comment\n\
  44 #this another comment\n\
  45 \n\
  46 VAR3=FOO";
  47
  48 char *s2 = "VAR1=ENV2\n\
  49 ";
  50
  51 static void
  52 make_file(char *tmpl, size_t l)
  53 {
  54     int fd;
  55     strlcpy(tmpl, "env.XXXXXX", l);
  56     fd = mkstemp(tmpl);
  57     if(fd < 0)
  58         err(1, "mkstemp");
  59     close(fd);
  60 }
  61
  62 static void
  63 write_file(const char *fn, const char *s)
  64 {
  65     FILE *f;
  66     f = fopen(fn, "w");
  67     if(f == NULL) {
  68         unlink(fn);
  69         err(1, "fopen");
  70     }
  71     if(fwrite(s, 1, strlen(s), f) != strlen(s))
  72         err(1, "short write");
  73     if(fclose(f) != 0) {
  74         unlink(fn);
  75         err(1, "fclose");
  76     }
  77 }
  78
  79 int
  80 main(int argc, char **argv)
  81 {
  82     char **env = NULL;
  83     int count = 0;
  84     char fn[MAXPATHLEN];
  85     int error = 0;
  86
  87     make_file(fn, sizeof(fn));
  88
  89     write_file(fn, s1);
  90     count = read_environment(fn, &env);
  91     if(count != 3) {
  92         warnx("test 1: variable count %d != 3", count);
  93         error++;
  94     }
  95
  96     write_file(fn, s2);
  97     count = read_environment(fn, &env);
  98     if(count != 1) {
  99         warnx("test 2: variable count %d != 1", count);
 100         error++;
 101     }
 102
 103     unlink(fn);
 104     count = read_environment(fn, &env);
 105     if(count != 0) {
 106         warnx("test 3: variable count %d != 0", count);
 107         error++;
 108     }
 109     for(count = 0; env && env[count]; count++);
 110     if(count != 3) {
 111         warnx("total variable count %d != 3", count);
 112         error++;
 113     }
 114     free_environment(env);
 115
 116
 117     return error;
 118 }