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Write files when extracting an archive from standard input.

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This commit is contained in:
Matt Kraai 2001-12-20 22:09:31 +00:00
parent c5b5cab37d
commit 2b1effdbbc
2 changed files with 13 additions and 16 deletions
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24
archival/tar.c
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@ -459,7 +459,7 @@ static int writeTarFile(const char* tarName, int verboseFlag, char **argv,
error_msg_and_die("Cowardly refusing to create an empty archive");
/* Open the tar file for writing. */
if (tarName == NULL || !strcmp(tarName, "-"))
if (tarName == NULL)
tbInfo.tarFd = fileno(stdout);
else
tbInfo.tarFd = open (tarName, O_WRONLY | O_CREAT | O_TRUNC, 0644);
@ -573,14 +573,12 @@ char **list_and_not_list(char **include_list, char **exclude_list)
int tar_main(int argc, char **argv)
{
enum untar_funct_e {
/* These are optional */
untar_from_file = 1,
untar_from_stdin = 2,
untar_unzip = 4,
/* This is optional */
untar_unzip = 1,
/* Require one and only one of these */
untar_list = 8,
untar_create = 16,
untar_extract = 32
untar_list = 2,
untar_create = 4,
untar_extract = 8
};
FILE *src_stream = NULL;
@ -649,10 +647,8 @@ int tar_main(int argc, char **argv)
break;
case 'f': // archive filename
if (strcmp(optarg, "-") == 0) {
// Untar from stdin to stdout
untar_funct |= untar_from_stdin;
src_filename = NULL;
} else {
untar_funct |= untar_from_file;
src_filename = xstrdup(optarg);
}
break;
@ -694,17 +690,13 @@ int tar_main(int argc, char **argv)
optind++;
}
if (src_filename == NULL) {
extract_function |= extract_to_stdout;
}
if (extract_function & (extract_list | extract_all_to_fs)) {
if (dst_prefix == NULL) {
dst_prefix = xstrdup("./");
}
/* Setup the source of the tar data */
if (untar_funct & untar_from_file) {
if (src_filename != NULL) {
src_stream = xfopen(src_filename, "r");
} else {
src_stream = stdin;

5
testsuite/tar/tar-extracts-from-standard-input Normal file
View File

@ -0,0 +1,5 @@
touch foo
tar cf foo.tar foo
rm foo
cat foo.tar | busybox tar x
test -f foo