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Diffstat (limited to 'Build/source/libs/zziplib/zziplib-src/bins/unzzip.c')
-rw-r--r--Build/source/libs/zziplib/zziplib-src/bins/unzzip.c115
1 files changed, 114 insertions, 1 deletions
diff --git a/Build/source/libs/zziplib/zziplib-src/bins/unzzip.c b/Build/source/libs/zziplib/zziplib-src/bins/unzzip.c
index f91c5ebad86..0c0b5e58bde 100644
--- a/Build/source/libs/zziplib/zziplib-src/bins/unzzip.c
+++ b/Build/source/libs/zziplib/zziplib-src/bins/unzzip.c
@@ -5,8 +5,14 @@
* This file is used as an example to clarify zzip api usage.
*/
+#include <sys/stat.h>
#include <zzip/zzip.h>
+#include <zzip/__string.h>
+#include <zzip/__mkdir.h>
+#include <zzip/__debug.h>
+#include <zzip/file.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include "unzzipcat-zip.h"
#include "unzzipdir-zip.h"
@@ -22,7 +28,7 @@ static const char usage[] =
static int unzzip_version(void)
{
- printf (__FILE__" version "ZZIP_PACKAGE" "ZZIP_VERSION"\n");
+ printf (__FILE__ " version " ZZIP_PACKAGE_NAME " " ZZIP_PACKAGE_VERSION "\n");
return 0;
}
@@ -32,6 +38,113 @@ static int unzzip_help(void)
return 0;
}
+/* Functions used by unzzipcat-*.c: */
+int exitcode(int e)
+{
+ switch (e)
+ {
+ case ZZIP_NO_ERROR:
+ return EXIT_OK;
+ case ZZIP_OUTOFMEM: /* out of memory */
+ return EXIT_ENOMEM;
+ case ZZIP_DIR_OPEN: /* failed to open zipfile, see errno for details */
+ return EXIT_ZIP_NOT_FOUND;
+ case ZZIP_DIR_STAT: /* failed to fstat zipfile, see errno for details */
+ case ZZIP_DIR_SEEK: /* failed to lseek zipfile, see errno for details */
+ case ZZIP_DIR_READ: /* failed to read zipfile, see errno for details */
+ case ZZIP_DIR_TOO_SHORT:
+ case ZZIP_DIR_EDH_MISSING:
+ return EXIT_FILEFORMAT;
+ case ZZIP_DIRSIZE:
+ return EXIT_EARLY_END_OF_FILE;
+ case ZZIP_ENOENT:
+ return EXIT_FILE_NOT_FOUND;
+ case ZZIP_UNSUPP_COMPR:
+ return EXIT_UNSUPPORTED_COMPRESSION;
+ case ZZIP_CORRUPTED:
+ case ZZIP_UNDEF:
+ case ZZIP_DIR_LARGEFILE:
+ return EXIT_FILEFORMAT;
+ }
+ return EXIT_ERRORS;
+}
+
+/*
+ * NAME: remove_dotdotslash
+ * PURPOSE: To remove any "../" components from the given pathname
+ * ARGUMENTS: path: path name with maybe "../" components
+ * RETURNS: Nothing, "path" is modified in-place
+ * NOTE: removing "../" from the path ALWAYS shortens the path, never adds to it!
+ * Also, "path" is not used after creating it.
+ * So modifying "path" in-place is safe to do.
+ */
+static inline void
+remove_dotdotslash(char *path)
+{
+ /* Note: removing "../" from the path ALWAYS shortens the path, never adds to it! */
+ char *dotdotslash;
+ int warned = 0;
+
+ dotdotslash = path;
+ while ((dotdotslash = strstr(dotdotslash, "../")) != NULL)
+ {
+ /*
+ * Remove only if at the beginning of the pathname ("../path/name")
+ * or when preceded by a slash ("path/../name"),
+ * otherwise not ("path../name..")!
+ */
+ if (dotdotslash == path || dotdotslash[-1] == '/')
+ {
+ char *src, *dst;
+ if (!warned)
+ {
+ /* Note: the first time through the pathname is still intact */
+ fprintf(stderr, "Removing \"../\" path component(s) in %s\n", path);
+ warned = 1;
+ }
+ /* We cannot use strcpy(), as there "The strings may not overlap" */
+ for (src = dotdotslash+3, dst=dotdotslash; (*dst = *src) != '\0'; src++, dst++)
+ ;
+ }
+ else
+ dotdotslash +=3; /* skip this instance to prevent infinite loop */
+ }
+}
+
+static void makedirs(const char* name)
+{
+ char* p = strrchr(name, '/');
+ if (p) {
+ char* dir_name = _zzip_strndup(name, p-name);
+ makedirs(dir_name);
+ free (dir_name);
+ }
+ if (_zzip_mkdir(name, 0775) == -1 && errno != EEXIST)
+ {
+ DBG3("while mkdir %s : %s", name, strerror(errno));
+ }
+ errno = 0;
+}
+
+FILE* create_fopen(char* name, char* mode, int subdirs)
+{
+ char name_stripped[PATH_MAX];
+
+ strncpy(name_stripped, name, PATH_MAX);
+ remove_dotdotslash(name_stripped);
+
+ if (subdirs)
+ {
+ char* p = strrchr(name_stripped, '/');
+ if (p) {
+ char* dir_name = _zzip_strndup(name_stripped, p-name);
+ makedirs(dir_name);
+ free (dir_name);
+ }
+ }
+ return fopen(name_stripped, mode);
+}
+
int
main (int argc, char ** argv)
{