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-rw-r--r--archival/tar.c67
1 files changed, 37 insertions, 30 deletions
diff --git a/archival/tar.c b/archival/tar.c
index 2f0c83b..72b4c99 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -308,8 +308,9 @@ static inline int writeTarHeader(struct TarBallInfo *tbInfo,
if (tbInfo->verboseFlag) {
FILE *vbFd = stdout;
- if (tbInfo->verboseFlag == 2) /* If the archive goes to stdout, verbose to stderr */
+ if (tbInfo->tarFd == fileno(stdout)) /* If the archive goes to stdout, verbose to stderr */
vbFd = stderr;
+
fprintf(vbFd, "%s\n", header.name);
}
@@ -445,7 +446,7 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf,
return (TRUE);
}
-static inline int writeTarFile(const char *tarName, const int verboseFlag,
+static inline int writeTarFile(const int tar_fd, const int verboseFlag,
const llist_t *include, const llist_t *exclude, const int gzip)
{
#ifdef CONFIG_FEATURE_TAR_GZIP
@@ -466,26 +467,14 @@ static inline int writeTarFile(const char *tarName, const int verboseFlag,
bb_error_msg_and_die("Cowardly refusing to create an empty archive");
}
- /* Open the tar file for writing. */
- if (tarName == NULL || (tarName[0] == '-' && tarName[1] == '\0')) {
- tbInfo.tarFd = fileno(stdout);
- tbInfo.verboseFlag = verboseFlag ? 2 : 0;
- } else {
- unlink(tarName);
- tbInfo.tarFd = open(tarName, O_WRONLY | O_CREAT | O_EXCL, 0644);
- tbInfo.verboseFlag = verboseFlag ? 1 : 0;
- }
-
- if (tbInfo.tarFd < 0) {
- bb_perror_msg("%s: Cannot open", tarName);
- freeHardLinkInfo(&tbInfo.hlInfoHead);
- return (FALSE);
- }
+ fchmod(tar_fd, 0644);
+ tbInfo.tarFd = tar_fd;
+ tbInfo.verboseFlag = verboseFlag;
/* Store the stat info for the tarball's file, so
* can avoid including the tarball into itself.... */
if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0)
- bb_error_msg_and_die(bb_msg_io_error, tarName);
+ bb_perror_msg_and_die("Couldnt stat tar file");
#ifdef CONFIG_FEATURE_TAR_GZIP
if (gzip) {
@@ -713,6 +702,35 @@ int tar_main(int argc, char **argv)
tar_handle->filter = filter_accept_reject_list;
}
+ /* Open the tar file */
+ {
+ FILE *tar_stream;
+ int flags;
+
+#ifdef CONFIG_FEATURE_TAR_CREATE
+ if (ctx_flag == CTX_CREATE) {
+ tar_stream = stdout;
+ flags = O_WRONLY | O_CREAT | O_EXCL;
+ unlink(tar_filename);
+ } else
+#endif
+ {
+ tar_stream = stdin;
+ flags = O_RDONLY;
+ }
+
+ if ((tar_filename[0] == '-') && (tar_filename[1] == '\0')) {
+ tar_handle->src_fd = fileno(tar_stream);
+ tar_handle->seek = seek_by_char;
+ } else {
+ tar_handle->src_fd = bb_xopen(tar_filename, flags);
+ }
+ }
+
+ if ((base_dir) && (chdir(base_dir))) {
+ bb_perror_msg_and_die("Couldnt chdir to %s", base_dir);
+ }
+
#ifdef CONFIG_FEATURE_TAR_CREATE
/* create an archive */
if (ctx_flag == CTX_CREATE) {
@@ -734,22 +752,11 @@ int tar_main(int argc, char **argv)
(tar_handle->action_header == header_verbose_list)) {
verboseFlag = TRUE;
}
- writeTarFile(tar_filename, verboseFlag, tar_handle->accept,
+ writeTarFile(tar_handle->src_fd, verboseFlag, tar_handle->accept,
tar_handle->reject, gzipFlag);
} else
#endif /* CONFIG_FEATURE_TAR_CREATE */
{
- if ((tar_filename[0] == '-') && (tar_filename[1] == '\0')) {
- tar_handle->src_fd = fileno(stdin);
- tar_handle->seek = seek_by_char;
- } else {
- tar_handle->src_fd = bb_xopen(tar_filename, O_RDONLY);
- }
-
- if ((base_dir) && (chdir(base_dir))) {
- bb_perror_msg_and_die("Couldnt chdir");
- }
-
while (get_header_ptr(tar_handle) == EXIT_SUCCESS);
/* Ckeck that every file that should have been extracted was */