diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_options.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_options.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_options.c b/Utilities/cmlibarchive/libarchive/archive_options.c new file mode 100644 index 000000000..79b4ffbda --- /dev/null +++ b/Utilities/cmlibarchive/libarchive/archive_options.c @@ -0,0 +1,164 @@ +/*- + * Copyright (c) 2011 Tim Kientzle + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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 "archive_platform.h" +__FBSDID("$FreeBSD$"); + +#include "archive_options_private.h" + +static const char * +parse_option(const char **str, + const char **mod, const char **opt, const char **val); + +int +_archive_set_option(struct archive *a, + const char *m, const char *o, const char *v, + int magic, const char *fn, option_handler use_option) +{ + const char *mp, *op, *vp; + + archive_check_magic(a, magic, ARCHIVE_STATE_NEW, fn); + + mp = m != NULL && m[0] != '\0' ? m : NULL; + op = o != NULL && o[0] != '\0' ? o : NULL; + vp = v != NULL && v[0] != '\0' ? v : NULL; + + if (op == NULL && vp == NULL) + return (ARCHIVE_OK); + if (op == NULL) + return (ARCHIVE_FAILED); + + return use_option(a, mp, op, vp); +} + +int +_archive_set_either_option(struct archive *a, const char *m, const char *o, const char *v, + option_handler use_format_option, option_handler use_filter_option) +{ + int r1, r2; + + if (o == NULL && v == NULL) + return (ARCHIVE_OK); + if (o == NULL) + return (ARCHIVE_FAILED); + + r1 = use_format_option(a, m, o, v); + if (r1 == ARCHIVE_FATAL) + return (ARCHIVE_FATAL); + + r2 = use_filter_option(a, m, o, v); + if (r2 == ARCHIVE_FATAL) + return (ARCHIVE_FATAL); + + return r1 > r2 ? r1 : r2; +} + +int +_archive_set_options(struct archive *a, const char *options, + int magic, const char *fn, option_handler use_option) +{ + int allok = 1, anyok = 0, r; + char *data; + const char *s, *mod, *opt, *val; + + archive_check_magic(a, magic, ARCHIVE_STATE_NEW, fn); + + if (options == NULL || options[0] == '\0') + return ARCHIVE_OK; + + data = (char *)malloc(strlen(options) + 1); + strcpy(data, options); + s = (const char *)data; + + do { + mod = opt = val = NULL; + + parse_option(&s, &mod, &opt, &val); + + r = use_option(a, mod, opt, val); + if (r == ARCHIVE_FATAL) { + free(data); + return (ARCHIVE_FATAL); + } + if (r == ARCHIVE_OK) + anyok = 1; + else + allok = 0; + } while (s != NULL); + + free(data); + return allok ? ARCHIVE_OK : anyok ? ARCHIVE_WARN : ARCHIVE_FAILED; +} + +static const char * +parse_option(const char **s, const char **m, const char **o, const char **v) +{ + const char *end, *mod, *opt, *val; + char *p; + + end = NULL; + mod = NULL; + opt = *s; + val = "1"; + + p = strchr(opt, ','); + + if (p != NULL) { + *p = '\0'; + end = ((const char *)p) + 1; + } + + if (0 == strlen(opt)) { + *s = end; + *m = NULL; + *o = NULL; + *v = NULL; + return end; + } + + p = strchr(opt, ':'); + if (p != NULL) { + *p = '\0'; + mod = opt; + opt = ++p; + } + + p = strchr(opt, '='); + if (p != NULL) { + *p = '\0'; + val = ++p; + } else if (opt[0] == '!') { + ++opt; + val = NULL; + } + + *s = end; + *m = mod; + *o = opt; + *v = val; + + return end; +} + |