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ensure that corrupted file extraction causes both a message and
a failure exit code. delay the error exit until all (good) files have been extracted. filesystem errors (nodes of wrong type, permission problems, etc) still cause immediate failure.
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b3ede5abe2
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986ab525b8
@ -100,7 +100,7 @@ static void unzip_create_leading_dirs(char *fn)
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free(name);
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}
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static void unzip_extract(zip_header_t *zip_header, int src_fd, int dst_fd)
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static int unzip_extract(zip_header_t *zip_header, int src_fd, int dst_fd)
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{
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if (zip_header->formated.method == 0) {
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/* Method 0 - stored (not compressed) */
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@ -117,12 +117,15 @@ static void unzip_extract(zip_header_t *zip_header, int src_fd, int dst_fd)
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/* Validate decompression - crc */
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if (zip_header->formated.crc32 != (gunzip_crc ^ 0xffffffffL)) {
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bb_error_msg("Invalid compressed data--crc error");
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return 1;
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}
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/* Validate decompression - size */
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if (zip_header->formated.ucmpsize != gunzip_bytes_out) {
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bb_error_msg("Invalid compressed data--length error");
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return 1;
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}
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}
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return 0;
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}
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int unzip_main(int argc, char **argv)
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@ -137,7 +140,7 @@ int unzip_main(int argc, char **argv)
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llist_t *zaccept = NULL;
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llist_t *zreject = NULL;
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char *base_dir = NULL;
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int i, opt, opt_range = 0, list_header_done = 0;
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int failed, i, opt, opt_range = 0, list_header_done = 0;
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char key_buf[512];
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struct stat stat_buf;
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@ -240,6 +243,8 @@ int unzip_main(int argc, char **argv)
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if (verbosity != v_silent)
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printf("Archive: %s\n", src_fn);
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failed = 0;
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while (1) {
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unsigned int magic;
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@ -367,7 +372,9 @@ int unzip_main(int argc, char **argv)
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if (verbosity == v_normal) {
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printf(" inflating: %s\n", dst_fn);
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}
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unzip_extract(&zip_header, src_fd, dst_fd);
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if (unzip_extract(&zip_header, src_fd, dst_fd)) {
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failed = 1;
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}
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if (dst_fd != STDOUT_FILENO) {
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/* closing STDOUT is potentially bad for future business */
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close(dst_fd);
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@ -409,7 +416,7 @@ int unzip_main(int argc, char **argv)
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"%9d %d files\n", total_size, total_entries);
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}
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return(EXIT_SUCCESS);
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return failed;
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}
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/* END CODE */
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