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ensure that corrupted file extraction causes both a message and

Browse Source 
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.
This commit is contained in:
Paul Fox 2006-03-27 23:09:14 +00:00
parent b3ede5abe2
commit 986ab525b8
1 changed files with 11 additions and 4 deletions
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15
archival/unzip.c
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@ -100,7 +100,7 @@ static void unzip_create_leading_dirs(char *fn)
free(name);
}
static void unzip_extract(zip_header_t *zip_header, int src_fd, int dst_fd)
static int unzip_extract(zip_header_t *zip_header, int src_fd, int dst_fd)
{
if (zip_header->formated.method == 0) {
/* Method 0 - stored (not compressed) */
@ -117,12 +117,15 @@ static void unzip_extract(zip_header_t *zip_header, int src_fd, int dst_fd)
/* Validate decompression - crc */
if (zip_header->formated.crc32 != (gunzip_crc ^ 0xffffffffL)) {
bb_error_msg("Invalid compressed data--crc error");
return 1;
}
/* Validate decompression - size */
if (zip_header->formated.ucmpsize != gunzip_bytes_out) {
bb_error_msg("Invalid compressed data--length error");
return 1;
}
}
return 0;
}
int unzip_main(int argc, char **argv)
@ -137,7 +140,7 @@ int unzip_main(int argc, char **argv)
llist_t *zaccept = NULL;
llist_t *zreject = NULL;
char *base_dir = NULL;
int i, opt, opt_range = 0, list_header_done = 0;
int failed, i, opt, opt_range = 0, list_header_done = 0;
char key_buf[512];
struct stat stat_buf;
@ -240,6 +243,8 @@ int unzip_main(int argc, char **argv)
if (verbosity != v_silent)
printf("Archive: %s\n", src_fn);
failed = 0;
while (1) {
unsigned int magic;
@ -367,7 +372,9 @@ int unzip_main(int argc, char **argv)
if (verbosity == v_normal) {
printf(" inflating: %s\n", dst_fn);
}
unzip_extract(&zip_header, src_fd, dst_fd);
if (unzip_extract(&zip_header, src_fd, dst_fd)) {
failed = 1;
}
if (dst_fd != STDOUT_FILENO) {
/* closing STDOUT is potentially bad for future business */
close(dst_fd);
@ -409,7 +416,7 @@ int unzip_main(int argc, char **argv)
"%9d %d files\n", total_size, total_entries);
}
return(EXIT_SUCCESS);
return failed;
}
/* END CODE */