diff options
Diffstat (limited to 'archival/tar.c')
| -rw-r--r-- | archival/tar.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/archival/tar.c b/archival/tar.c index b2a2123..cf972f4 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -431,12 +431,7 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag, const unsigned long dereferenceFlag, const llist_t *include, const llist_t *exclude, const int gzip) { -#ifdef CONFIG_FEATURE_TAR_GZIP - int gzipDataPipe[2] = { -1, -1 }; - int gzipStatusPipe[2] = { -1, -1 }; pid_t gzipPid = 0; - volatile int vfork_exec_errno = 0; -#endif int errorFlag = FALSE; ssize_t size; @@ -453,10 +448,15 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag, if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0) bb_perror_msg_and_die("Couldnt stat tar file"); -#ifdef CONFIG_FEATURE_TAR_GZIP - if (gzip) { + if ((ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2) && gzip) { + int gzipDataPipe[2] = { -1, -1 }; + int gzipStatusPipe[2] = { -1, -1 }; + volatile int vfork_exec_errno = 0; + char *zip_exec = (gzip == 1) ? "gzip" : "bzip2"; + + if (pipe(gzipDataPipe) < 0 || pipe(gzipStatusPipe) < 0) { - bb_perror_msg_and_die("Failed to create gzip pipe"); + bb_perror_msg_and_die("Failed to create pipe"); } signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */ @@ -479,7 +479,7 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag, close(gzipStatusPipe[0]); fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */ - execl("/bin/gzip", "gzip", "-f", 0); + execlp(zip_exec, zip_exec, "-f", 0); vfork_exec_errno = errno; close(gzipStatusPipe[1]); @@ -495,7 +495,7 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag, if (n == 0 && vfork_exec_errno != 0) { errno = vfork_exec_errno; - bb_perror_msg_and_die("Could not exec gzip process"); + bb_perror_msg_and_die("Could not exec %s",zip_exec); } else if ((n < 0) && (errno == EAGAIN || errno == EINTR)) continue; /* try it again */ break; @@ -507,7 +507,6 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag, bb_perror_msg_and_die("Failed to vfork gzip process"); } } -#endif tbInfo.excludeList = exclude; @@ -537,12 +536,10 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag, freeHardLinkInfo(&tbInfo.hlInfoHead); -#ifdef CONFIG_FEATURE_TAR_GZIP - if (gzip && gzipPid) { + if (gzipPid) { if (waitpid(gzipPid, NULL, 0) == -1) printf("Couldnt wait ?"); } -#endif return !errorFlag; } @@ -846,16 +843,16 @@ int tar_main(int argc, char **argv) /* create an archive */ if (opt & CTX_CREATE) { int verboseFlag = FALSE; - int gzipFlag = FALSE; + int zipMode = 0; # ifdef CONFIG_FEATURE_TAR_GZIP if (get_header_ptr == get_header_tar_gz) { - gzipFlag = TRUE; + zipMode = 1; } # endif /* CONFIG_FEATURE_TAR_GZIP */ # ifdef CONFIG_FEATURE_TAR_BZIP2 if (get_header_ptr == get_header_tar_bz2) { - bb_error_msg_and_die("Creating bzip2 compressed archives is not currently supported."); + zipMode = 2; } # endif /* CONFIG_FEATURE_TAR_BZIP2 */ @@ -864,7 +861,7 @@ int tar_main(int argc, char **argv) verboseFlag = TRUE; } writeTarFile(tar_handle->src_fd, verboseFlag, opt & TAR_OPT_DEREFERNCE, tar_handle->accept, - tar_handle->reject, gzipFlag); + tar_handle->reject, zipMode); } else #endif /* CONFIG_FEATURE_TAR_CREATE */ { |