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-rw-r--r--Utilities/cmlibarchive/libarchive/archive_cmdline.c227
1 files changed, 227 insertions, 0 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_cmdline.c b/Utilities/cmlibarchive/libarchive/archive_cmdline.c
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index 000000000..7d3bac53b
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+++ b/Utilities/cmlibarchive/libarchive/archive_cmdline.c
@@ -0,0 +1,227 @@
+/*-
+ * Copyright (c) 2012 Michihiro NAKAJIMA
+ * 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("$FreeBSD$");
+
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include "archive.h"
+#include "archive_cmdline_private.h"
+#include "archive_string.h"
+
+static int cmdline_set_path(struct archive_cmdline *, const char *);
+static int cmdline_add_arg(struct archive_cmdline *, const char *);
+
+static ssize_t
+extract_quotation(struct archive_string *as, const char *p)
+{
+ const char *s;
+
+ for (s = p + 1; *s;) {
+ if (*s == '\\') {
+ if (s[1] != '\0') {
+ archive_strappend_char(as, s[1]);
+ s += 2;
+ } else
+ s++;
+ } else if (*s == '"')
+ break;
+ else {
+ archive_strappend_char(as, s[0]);
+ s++;
+ }
+ }
+ if (*s != '"')
+ return (ARCHIVE_FAILED);/* Invalid sequence. */
+ return ((ssize_t)(s + 1 - p));
+}
+
+static ssize_t
+get_argument(struct archive_string *as, const char *p)
+{
+ const char *s = p;
+
+ archive_string_empty(as);
+
+ /* Skip beginning space characters. */
+ while (*s != '\0' && *s == ' ')
+ s++;
+ /* Copy non-space characters. */
+ while (*s != '\0' && *s != ' ') {
+ if (*s == '\\') {
+ if (s[1] != '\0') {
+ archive_strappend_char(as, s[1]);
+ s += 2;
+ } else {
+ s++;/* Ignore this character.*/
+ break;
+ }
+ } else if (*s == '"') {
+ ssize_t q = extract_quotation(as, s);
+ if (q < 0)
+ return (ARCHIVE_FAILED);/* Invalid sequence. */
+ s += q;
+ } else {
+ archive_strappend_char(as, s[0]);
+ s++;
+ }
+ }
+ return ((ssize_t)(s - p));
+}
+
+/*
+ * Set up command line arguments.
+ * Returns ARChIVE_OK if everything okey.
+ * Returns ARChIVE_FAILED if there is a lack of the `"' terminator or an
+ * empty command line.
+ * Returns ARChIVE_FATAL if no memory.
+ */
+int
+__archive_cmdline_parse(struct archive_cmdline *data, const char *cmd)
+{
+ struct archive_string as;
+ const char *p;
+ ssize_t al;
+ int r;
+
+ archive_string_init(&as);
+
+ /* Get first argument as a command path. */
+ al = get_argument(&as, cmd);
+ if (al < 0) {
+ r = ARCHIVE_FAILED;/* Invalid sequence. */
+ goto exit_function;
+ }
+ if (archive_strlen(&as) == 0) {
+ r = ARCHIVE_FAILED;/* An empty command path. */
+ goto exit_function;
+ }
+ r = cmdline_set_path(data, as.s);
+ if (r != ARCHIVE_OK)
+ goto exit_function;
+ p = strrchr(as.s, '/');
+ if (p == NULL)
+ p = as.s;
+ else
+ p++;
+ r = cmdline_add_arg(data, p);
+ if (r != ARCHIVE_OK)
+ goto exit_function;
+ cmd += al;
+
+ for (;;) {
+ al = get_argument(&as, cmd);
+ if (al < 0) {
+ r = ARCHIVE_FAILED;/* Invalid sequence. */
+ goto exit_function;
+ }
+ if (al == 0)
+ break;
+ cmd += al;
+ if (archive_strlen(&as) == 0 && *cmd == '\0')
+ break;
+ r = cmdline_add_arg(data, as.s);
+ if (r != ARCHIVE_OK)
+ goto exit_function;
+ }
+ r = ARCHIVE_OK;
+exit_function:
+ archive_string_free(&as);
+ return (r);
+}
+
+/*
+ * Set the program path.
+ */
+static int
+cmdline_set_path(struct archive_cmdline *data, const char *path)
+{
+ char *newptr;
+
+ newptr = realloc(data->path, strlen(path) + 1);
+ if (newptr == NULL)
+ return (ARCHIVE_FATAL);
+ data->path = newptr;
+ strcpy(data->path, path);
+ return (ARCHIVE_OK);
+}
+
+/*
+ * Add a argument for the program.
+ */
+static int
+cmdline_add_arg(struct archive_cmdline *data, const char *arg)
+{
+ char **newargv;
+
+ if (data->path == NULL)
+ return (ARCHIVE_FAILED);
+
+ newargv = realloc(data->argv, (data->argc + 2) * sizeof(char *));
+ if (newargv == NULL)
+ return (ARCHIVE_FATAL);
+ data->argv = newargv;
+ data->argv[data->argc] = strdup(arg);
+ if (data->argv[data->argc] == NULL)
+ return (ARCHIVE_FATAL);
+ /* Set the terminator of argv. */
+ data->argv[++data->argc] = NULL;
+ return (ARCHIVE_OK);
+}
+
+struct archive_cmdline *
+__archive_cmdline_allocate(void)
+{
+ return (struct archive_cmdline *)
+ calloc(1, sizeof(struct archive_cmdline));
+}
+
+/*
+ * Release the resources.
+ */
+int
+__archive_cmdline_free(struct archive_cmdline *data)
+{
+
+ if (data) {
+ free(data->path);
+ if (data->argv != NULL) {
+ int i;
+ for (i = 0; data->argv[i] != NULL; i++)
+ free(data->argv[i]);
+ free(data->argv);
+ }
+ free(data);
+ }
+ return (ARCHIVE_OK);
+}
+