New function, deb-extract to be used by dpkg, code cleanups. saves some bytes
This commit is contained in:
Glenn L McGrath
parent
728875f340
commit
bc9afadecd
@ -14,6 +14,10 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Merge this applet into dpkg when dpkg becomes more stable
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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@ -33,31 +37,82 @@ typedef struct ar_headers_s {
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struct ar_headers_s *next;
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} ar_headers_t;
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extern ar_headers_t get_headers(int srcFd);
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extern ar_headers_t get_ar_headers(int srcFd);
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extern int tar_unzip_init(int tarFd);
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extern int readTarFile(int tarFd, int extractFlag, int listFlag,
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int tostdoutFlag, int verboseFlag, char** extractList,
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char** excludeList);
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int tostdoutFlag, int verboseFlag, char** extractList, char** excludeList);
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extern int dpkg_deb_main(int argc, char **argv)
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{
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const int dpkg_deb_contents = 1;
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const int dpkg_deb_control = 2;
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const int dpkg_deb_contents = 1;
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const int dpkg_deb_control = 2;
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// const int dpkg_deb_info = 4;
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const int dpkg_deb_extract = 8;
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const int dpkg_deb_verbose_extract = 16;
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int opt=0;
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int optflag=0;
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const int dpkg_deb_extract = 8;
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const int dpkg_deb_verbose_extract = 16;
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extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename)
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{
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char **extract_list = NULL;
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ar_headers_t *ar_headers = NULL;
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char ar_filename[15];
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int extract_flag = FALSE;
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int list_flag = FALSE;
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int verbose_flag = FALSE;
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int extract_to_stdout = FALSE;
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char ar_filename[15];
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int srcFd=0;
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int status=0;
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ar_headers_t *ar_headers = NULL;
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char **extract_list=NULL;
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char *target_dir=NULL;
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int srcFd = 0;
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int status;
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if (dpkg_deb_contents == (dpkg_deb_contents & optflags)) {
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strcpy(ar_filename, "data.tar.gz");
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verbose_flag = TRUE;
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list_flag = TRUE;
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}
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if (dpkg_deb_control == (dpkg_deb_control & optflags)) {
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strcpy(ar_filename, "control.tar.gz");
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extract_flag = TRUE;
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}
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if (dpkg_deb_extract == (dpkg_deb_extract & optflags)) {
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strcpy(ar_filename, "data.tar.gz");
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extract_flag = TRUE;
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}
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if (dpkg_deb_verbose_extract == (dpkg_deb_verbose_extract & optflags)) {
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strcpy(ar_filename, "data.tar.gz");
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extract_flag = TRUE;
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list_flag = TRUE;
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}
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ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
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srcFd = open(deb_filename, O_RDONLY);
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*ar_headers = get_ar_headers(srcFd);
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if (ar_headers->next == NULL) {
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error_msg_and_die("Couldnt find %s in %s", ar_filename, deb_filename);
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}
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while (ar_headers->next != NULL) {
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if (strcmp(ar_headers->name, ar_filename) == 0) {
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break;
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}
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ar_headers = ar_headers->next;
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}
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lseek(srcFd, ar_headers->offset, SEEK_SET);
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srcFd = tar_unzip_init(srcFd);
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if ( dir_name != NULL) {
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if (is_directory(dir_name, TRUE, NULL)==FALSE) {
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mkdir(dir_name, 0755);
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}
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if (chdir(dir_name)==-1) {
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error_msg_and_die("Cannot change to dir %s", dir_name);
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}
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}
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status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
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return status;
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}
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extern int dpkg_deb_main(int argc, char **argv)
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{
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char *target_dir = NULL;
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int opt = 0;
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int optflag = 0;
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while ((opt = getopt(argc, argv, "cexX")) != -1) {
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switch (opt) {
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@ -67,16 +122,16 @@ extern int dpkg_deb_main(int argc, char **argv)
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case 'e':
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optflag |= dpkg_deb_control;
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break;
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case 'X':
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optflag |= dpkg_deb_verbose_extract;
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break;
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case 'x':
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optflag |= dpkg_deb_extract;
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break;
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/* case 'I':
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optflag |= dpkg_deb_info;
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break;
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*/
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case 'x':
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optflag |= dpkg_deb_extract;
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break;
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case 'X':
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optflag |= dpkg_deb_verbose_extract;
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break;
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default:
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usage(dpkg_deb_usage);
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return EXIT_FAILURE;
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@ -87,25 +142,16 @@ extern int dpkg_deb_main(int argc, char **argv)
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usage(dpkg_deb_usage);
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return(EXIT_FAILURE);
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}
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if (optflag & dpkg_deb_contents) {
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list_flag = TRUE;
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verbose_flag = TRUE;
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strcpy(ar_filename, "data.tar.gz");
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}
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else if (optflag & dpkg_deb_control) {
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extract_flag = TRUE;
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strcpy(ar_filename, "control.tar.gz");
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if ( (optind + 1) == argc ) {
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target_dir = (char *) xmalloc(7);
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strcpy(target_dir, "DEBIAN");
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}
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else {
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target_dir = (char *) xmalloc(strlen(argv[optind+1]));
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strcpy(target_dir, argv[optind+1]);
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}
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if ((optflag & dpkg_deb_control) || (optflag & dpkg_deb_extract) || (optflag & dpkg_deb_verbose_extract)) {
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if ( (optind + 1) == argc ) {
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target_dir = (char *) xmalloc(7);
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strcpy(target_dir, "DEBIAN");
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} else {
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target_dir = (char *) xmalloc(strlen(argv[optind + 1]));
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strcpy(target_dir, argv[optind + 1]);
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}
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}
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deb_extract(optflag, target_dir, argv[optind]);
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/* else if (optflag & dpkg_deb_info) {
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extract_flag = TRUE;
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extract_to_stdout = TRUE;
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@ -114,50 +160,5 @@ extern int dpkg_deb_main(int argc, char **argv)
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printf("list one is [%s]\n",extract_list[0]);
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}
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*/
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else if (optflag & dpkg_deb_extract) {
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extract_flag = TRUE;
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strcpy(ar_filename, "data.tar.gz");
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if ( (optind + 2) > argc ) {
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error_msg_and_die("No directory specified");
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}
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target_dir = (char *) xmalloc(strlen(argv[optind+1]));
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strcpy(target_dir, argv[optind+1]);
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}
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else if (optflag & dpkg_deb_verbose_extract) {
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extract_flag = TRUE;
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list_flag = TRUE;
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strcpy(ar_filename, "data.tar.gz");
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if ( (optind + 2) > argc ) {
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error_msg_and_die("No directory specified");
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}
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target_dir = (char *) xmalloc(strlen(argv[optind+1]));
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strcpy(target_dir, argv[optind+1]);
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}
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ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
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srcFd = open(argv[optind], O_RDONLY);
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*ar_headers = get_headers(srcFd);
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if (ar_headers->next==NULL)
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error_msg_and_die("Couldnt find %s in %s", ar_filename, argv[optind]);
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while (ar_headers->next != NULL) {
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if (strcmp(ar_headers->name, ar_filename)==0)
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break;
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ar_headers = ar_headers->next;
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}
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lseek(srcFd, ar_headers->offset, SEEK_SET);
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srcFd = tar_unzip_init(srcFd);
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if ( target_dir != NULL) {
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if (is_directory(target_dir, TRUE, NULL)==FALSE) {
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mkdir(target_dir, 0755);
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}
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if (chdir(target_dir)==-1) {
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error_msg_and_die("Cannot change to dir %s", argv[optind+1]);
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}
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}
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status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
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close (srcFd);
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return(EXIT_SUCCESS);
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}
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173
dpkg_deb.c
173
dpkg_deb.c
@ -14,6 +14,10 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Merge this applet into dpkg when dpkg becomes more stable
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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@ -33,31 +37,82 @@ typedef struct ar_headers_s {
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struct ar_headers_s *next;
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} ar_headers_t;
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extern ar_headers_t get_headers(int srcFd);
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extern ar_headers_t get_ar_headers(int srcFd);
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extern int tar_unzip_init(int tarFd);
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extern int readTarFile(int tarFd, int extractFlag, int listFlag,
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int tostdoutFlag, int verboseFlag, char** extractList,
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char** excludeList);
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int tostdoutFlag, int verboseFlag, char** extractList, char** excludeList);
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extern int dpkg_deb_main(int argc, char **argv)
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{
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const int dpkg_deb_contents = 1;
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const int dpkg_deb_control = 2;
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const int dpkg_deb_contents = 1;
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const int dpkg_deb_control = 2;
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// const int dpkg_deb_info = 4;
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const int dpkg_deb_extract = 8;
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const int dpkg_deb_verbose_extract = 16;
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int opt=0;
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int optflag=0;
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const int dpkg_deb_extract = 8;
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const int dpkg_deb_verbose_extract = 16;
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extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename)
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{
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char **extract_list = NULL;
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ar_headers_t *ar_headers = NULL;
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char ar_filename[15];
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int extract_flag = FALSE;
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int list_flag = FALSE;
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int verbose_flag = FALSE;
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int extract_to_stdout = FALSE;
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char ar_filename[15];
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int srcFd=0;
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int status=0;
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ar_headers_t *ar_headers = NULL;
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char **extract_list=NULL;
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char *target_dir=NULL;
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int srcFd = 0;
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int status;
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if (dpkg_deb_contents == (dpkg_deb_contents & optflags)) {
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strcpy(ar_filename, "data.tar.gz");
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verbose_flag = TRUE;
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list_flag = TRUE;
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}
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if (dpkg_deb_control == (dpkg_deb_control & optflags)) {
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strcpy(ar_filename, "control.tar.gz");
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extract_flag = TRUE;
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}
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if (dpkg_deb_extract == (dpkg_deb_extract & optflags)) {
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strcpy(ar_filename, "data.tar.gz");
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extract_flag = TRUE;
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}
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if (dpkg_deb_verbose_extract == (dpkg_deb_verbose_extract & optflags)) {
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strcpy(ar_filename, "data.tar.gz");
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extract_flag = TRUE;
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list_flag = TRUE;
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}
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ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
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srcFd = open(deb_filename, O_RDONLY);
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*ar_headers = get_ar_headers(srcFd);
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if (ar_headers->next == NULL) {
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error_msg_and_die("Couldnt find %s in %s", ar_filename, deb_filename);
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}
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while (ar_headers->next != NULL) {
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if (strcmp(ar_headers->name, ar_filename) == 0) {
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break;
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}
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ar_headers = ar_headers->next;
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}
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lseek(srcFd, ar_headers->offset, SEEK_SET);
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srcFd = tar_unzip_init(srcFd);
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if ( dir_name != NULL) {
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if (is_directory(dir_name, TRUE, NULL)==FALSE) {
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mkdir(dir_name, 0755);
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}
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if (chdir(dir_name)==-1) {
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error_msg_and_die("Cannot change to dir %s", dir_name);
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}
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}
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status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
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return status;
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}
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extern int dpkg_deb_main(int argc, char **argv)
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{
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char *target_dir = NULL;
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int opt = 0;
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int optflag = 0;
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while ((opt = getopt(argc, argv, "cexX")) != -1) {
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switch (opt) {
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@ -67,16 +122,16 @@ extern int dpkg_deb_main(int argc, char **argv)
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case 'e':
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optflag |= dpkg_deb_control;
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break;
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case 'X':
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optflag |= dpkg_deb_verbose_extract;
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break;
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case 'x':
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optflag |= dpkg_deb_extract;
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break;
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/* case 'I':
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optflag |= dpkg_deb_info;
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break;
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*/
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case 'x':
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optflag |= dpkg_deb_extract;
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break;
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case 'X':
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optflag |= dpkg_deb_verbose_extract;
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break;
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default:
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usage(dpkg_deb_usage);
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return EXIT_FAILURE;
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@ -87,25 +142,16 @@ extern int dpkg_deb_main(int argc, char **argv)
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usage(dpkg_deb_usage);
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return(EXIT_FAILURE);
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}
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if (optflag & dpkg_deb_contents) {
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list_flag = TRUE;
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verbose_flag = TRUE;
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strcpy(ar_filename, "data.tar.gz");
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}
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else if (optflag & dpkg_deb_control) {
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extract_flag = TRUE;
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strcpy(ar_filename, "control.tar.gz");
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if ( (optind + 1) == argc ) {
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target_dir = (char *) xmalloc(7);
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strcpy(target_dir, "DEBIAN");
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}
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else {
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target_dir = (char *) xmalloc(strlen(argv[optind+1]));
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strcpy(target_dir, argv[optind+1]);
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}
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if ((optflag & dpkg_deb_control) || (optflag & dpkg_deb_extract) || (optflag & dpkg_deb_verbose_extract)) {
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if ( (optind + 1) == argc ) {
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target_dir = (char *) xmalloc(7);
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strcpy(target_dir, "DEBIAN");
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} else {
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target_dir = (char *) xmalloc(strlen(argv[optind + 1]));
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strcpy(target_dir, argv[optind + 1]);
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}
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}
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deb_extract(optflag, target_dir, argv[optind]);
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/* else if (optflag & dpkg_deb_info) {
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extract_flag = TRUE;
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extract_to_stdout = TRUE;
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@ -114,50 +160,5 @@ extern int dpkg_deb_main(int argc, char **argv)
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printf("list one is [%s]\n",extract_list[0]);
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}
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*/
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else if (optflag & dpkg_deb_extract) {
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extract_flag = TRUE;
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strcpy(ar_filename, "data.tar.gz");
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if ( (optind + 2) > argc ) {
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error_msg_and_die("No directory specified");
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}
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target_dir = (char *) xmalloc(strlen(argv[optind+1]));
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strcpy(target_dir, argv[optind+1]);
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}
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else if (optflag & dpkg_deb_verbose_extract) {
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extract_flag = TRUE;
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list_flag = TRUE;
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strcpy(ar_filename, "data.tar.gz");
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if ( (optind + 2) > argc ) {
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error_msg_and_die("No directory specified");
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}
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target_dir = (char *) xmalloc(strlen(argv[optind+1]));
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strcpy(target_dir, argv[optind+1]);
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}
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ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
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srcFd = open(argv[optind], O_RDONLY);
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*ar_headers = get_headers(srcFd);
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if (ar_headers->next==NULL)
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error_msg_and_die("Couldnt find %s in %s", ar_filename, argv[optind]);
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while (ar_headers->next != NULL) {
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if (strcmp(ar_headers->name, ar_filename)==0)
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break;
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ar_headers = ar_headers->next;
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}
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lseek(srcFd, ar_headers->offset, SEEK_SET);
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srcFd = tar_unzip_init(srcFd);
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if ( target_dir != NULL) {
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if (is_directory(target_dir, TRUE, NULL)==FALSE) {
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mkdir(target_dir, 0755);
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}
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if (chdir(target_dir)==-1) {
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error_msg_and_die("Cannot change to dir %s", argv[optind+1]);
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}
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}
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status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
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close (srcFd);
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return(EXIT_SUCCESS);
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}
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