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* Copyright (c) 2012 Michihiro NAKAJIMA
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "archive_platform.h"
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__FBSDID("$FreeBSD$");
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#include "archive_cmdline_private.h"
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#include "archive_string.h"
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static int cmdline_set_path(struct archive_cmdline *, const char *);
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static int cmdline_add_arg(struct archive_cmdline *, const char *);
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extract_quotation(struct archive_string *as, const char *p)
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for (s = p + 1; *s;) {
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archive_strappend_char(as, s[1]);
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archive_strappend_char(as, s[0]);
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return (ARCHIVE_FAILED);/* Invalid sequence. */
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return ((ssize_t)(s + 1 - p));
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get_argument(struct archive_string *as, const char *p)
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archive_string_empty(as);
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/* Skip beginning space characters. */
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while (*s != '\0' && *s == ' ')
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/* Copy non-space characters. */
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while (*s != '\0' && *s != ' ') {
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archive_strappend_char(as, s[1]);
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s++;/* Ignore this character.*/
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} else if (*s == '"') {
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ssize_t q = extract_quotation(as, s);
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return (ARCHIVE_FAILED);/* Invalid sequence. */
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archive_strappend_char(as, s[0]);
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return ((ssize_t)(s - p));
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* Set up command line arguments.
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* Returns ARChIVE_OK if everything okey.
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* Returns ARChIVE_FAILED if there is a lack of the `"' terminator or an
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* empty command line.
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* Returns ARChIVE_FATAL if no memory.
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__archive_cmdline_parse(struct archive_cmdline *data, const char *cmd)
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struct archive_string as;
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archive_string_init(&as);
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/* Get first argument as a command path. */
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al = get_argument(&as, cmd);
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r = ARCHIVE_FAILED;/* Invalid sequence. */
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if (archive_strlen(&as) == 0) {
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r = ARCHIVE_FAILED;/* An empty command path. */
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r = cmdline_set_path(data, as.s);
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p = strrchr(as.s, '/');
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r = cmdline_add_arg(data, p);
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al = get_argument(&as, cmd);
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r = ARCHIVE_FAILED;/* Invalid sequence. */
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if (archive_strlen(&as) == 0 && *cmd == '\0')
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r = cmdline_add_arg(data, as.s);
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archive_string_free(&as);
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* Set the program path.
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cmdline_set_path(struct archive_cmdline *data, const char *path)
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newptr = realloc(data->path, strlen(path) + 1);
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return (ARCHIVE_FATAL);
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strcpy(data->path, path);
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* Add a argument for the program.
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cmdline_add_arg(struct archive_cmdline *data, const char *arg)
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if (data->path == NULL)
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return (ARCHIVE_FAILED);
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newargv = realloc(data->argv, (data->argc + 2) * sizeof(char *));
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return (ARCHIVE_FATAL);
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data->argv = newargv;
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data->argv[data->argc] = strdup(arg);
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if (data->argv[data->argc] == NULL)
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return (ARCHIVE_FATAL);
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/* Set the terminator of argv. */
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data->argv[++data->argc] = NULL;
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struct archive_cmdline *
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__archive_cmdline_allocate(void)
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return (struct archive_cmdline *)
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calloc(1, sizeof(struct archive_cmdline));
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* Release the resources.
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__archive_cmdline_free(struct archive_cmdline *data)
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if (data->argv != NULL) {
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for (i = 0; data->argv[i] != NULL; i++)