diff options
author | Erwin Nindl <nine@wirdorange.org> | 2007-06-22 13:59:20 +0000 |
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committer | Erwin Nindl <nine@wirdorange.org> | 2007-06-22 13:59:20 +0000 |
commit | 0275479cb56c7f562f3513fef66c83fc44d1d8c9 (patch) | |
tree | f6fbb703cebf62d18b05e2a5e7591ac08c5b6702 /srtp/test/getopt_s.c | |
parent | satp internet draft 00 final ietf version (diff) |
added libsrtp to svn
Diffstat (limited to 'srtp/test/getopt_s.c')
-rw-r--r-- | srtp/test/getopt_s.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/srtp/test/getopt_s.c b/srtp/test/getopt_s.c new file mode 100644 index 0000000..243ad6e --- /dev/null +++ b/srtp/test/getopt_s.c @@ -0,0 +1,112 @@ +/* + * getopt.c + * + * a minimal implementation of the getopt() function, written so that + * test applications that use that function can run on non-POSIX + * platforms + * + */ +/* + * + * Copyright (c) 2001-2006 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <stdlib.h> /* for NULL */ + +int optind_s = 0; + +char *optarg_s; + +#define GETOPT_FOUND_WITHOUT_ARGUMENT 2 +#define GETOPT_FOUND_WITH_ARGUMENT 1 +#define GETOPT_NOT_FOUND 0 + +static int +getopt_check_character(char c, const char *string) { + unsigned int max_string_len = 128; + + while (*string != 0) { + if (max_string_len == 0) { + return '?'; + } + if (*string++ == c) { + if (*string == ':') { + return GETOPT_FOUND_WITH_ARGUMENT; + } else { + return GETOPT_FOUND_WITHOUT_ARGUMENT; + } + } + } + return GETOPT_NOT_FOUND; +} + +int +getopt_s(int argc, + char * const argv[], + const char *optstring) { + + + while (optind_s + 1 < argc) { + char *string; + + /* move 'string' on to next argument */ + optind_s++; + string = argv[optind_s]; + + if (string == NULL) + return '?'; /* NULL argument string */ + + if (string[0] != '-') + return -1; /* found an unexpected character */ + + switch(getopt_check_character(string[1], optstring)) { + case GETOPT_FOUND_WITH_ARGUMENT: + if (optind_s + 1 < argc) { + optind_s++; + optarg_s = argv[optind_s]; + return string[1]; + } else { + return '?'; /* argument missing */ + } + case GETOPT_FOUND_WITHOUT_ARGUMENT: + return string[1]; + case GETOPT_NOT_FOUND: + default: + return '?'; /* didn't find expected character */ + break; + } + } + + return -1; +} |