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New dpkg-deb function -t, stands for --fsys-tarfile

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This commit is contained in:
Glenn L McGrath 2001-04-12 13:49:09 +00:00
parent c9cac5be23
commit 3e2ab88ee2
7 changed files with 41 additions and 24 deletions
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6
applets/usage.h
View File

@ -265,13 +265,13 @@
"WORK IN PROGRESS, only usefull for debian-installer"
#define dpkg_deb_trivial_usage \
"[-cexX] file directory"
"[-cefxX] file directory"
#define dpkg_deb_full_usage \
"Perform actions on debian packages (.debs)\n\n" \
"Options:\n" \
"\t-c\tList contents of filesystem tree (verbose)\n" \
"\t-l\tList contents of filesystem tree (.list format)\n" \
"\t-c\tList contents of filesystem tree\n" \
"\t-e\tExtract control files to directory\n" \
"\t-f\tExtract filesystem tree to stdout in tar format\n" \
"\t-x\tExctract packages filesystem tree to directory\n" \
"\t-X\tVerbose extract"
#define dpkg_deb_example_usage \

5
archival/dpkg_deb.c
View File

@ -24,7 +24,7 @@ extern int dpkg_deb_main(int argc, char **argv)
int opt = 0;
int optflag = 0;
while ((opt = getopt(argc, argv, "cexXl")) != -1) {
while ((opt = getopt(argc, argv, "cetXxl")) != -1) {
switch (opt) {
case 'c':
optflag |= extract_contents;
@ -32,6 +32,9 @@ extern int dpkg_deb_main(int argc, char **argv)
case 'e':
optflag |= extract_control;
break;
case 't':
optflag |= extract_fsys_tarfile;
break;
case 'X':
optflag |= extract_verbose_extract;
break;

5
dpkg_deb.c
View File

@ -24,7 +24,7 @@ extern int dpkg_deb_main(int argc, char **argv)
int opt = 0;
int optflag = 0;
while ((opt = getopt(argc, argv, "cexXl")) != -1) {
while ((opt = getopt(argc, argv, "cetXxl")) != -1) {
switch (opt) {
case 'c':
optflag |= extract_contents;
@ -32,6 +32,9 @@ extern int dpkg_deb_main(int argc, char **argv)
case 'e':
optflag |= extract_control;
break;
case 't':
optflag |= extract_fsys_tarfile;
break;
case 'X':
optflag |= extract_verbose_extract;
break;

6
include/usage.h
View File

@ -265,13 +265,13 @@
"WORK IN PROGRESS, only usefull for debian-installer"
#define dpkg_deb_trivial_usage \
"[-cexX] file directory"
"[-cefxX] file directory"
#define dpkg_deb_full_usage \
"Perform actions on debian packages (.debs)\n\n" \
"Options:\n" \
"\t-c\tList contents of filesystem tree (verbose)\n" \
"\t-l\tList contents of filesystem tree (.list format)\n" \
"\t-c\tList contents of filesystem tree\n" \
"\t-e\tExtract control files to directory\n" \
"\t-f\tExtract filesystem tree to stdout in tar format\n" \
"\t-x\tExctract packages filesystem tree to directory\n" \
"\t-X\tVerbose extract"
#define dpkg_deb_example_usage \

14
libbb/deb_extract.c
View File

@ -26,6 +26,7 @@
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include "libbb.h"
@ -42,14 +43,9 @@ extern int deb_extract(const char *package_filename, int function, char *target_
case (extract_control):
ared_file = xstrdup("control.tar.gz");
break;
case (extract_contents):
case (extract_extract):
case (extract_verbose_extract):
case (extract_list):
default:
ared_file = xstrdup("data.tar.gz");
break;
default:
error_msg("Unknown extraction function");
}
/* open the debian package to be worked on */
@ -71,9 +67,11 @@ extern int deb_extract(const char *package_filename, int function, char *target_
/* open a stream of decompressed data */
uncompressed_file = fdopen(gz_open(deb_file, &gunzip_pid), "r");
/* get a list of all tar headers inside the .gz file */
if (function & extract_fsys_tarfile) {
copy_file_chunk(uncompressed_file, stdout, -1);
} else {
untar(uncompressed_file, function, target_dir);
}
/* we are deliberately terminating the child so we can safely ignore this */
gz_close(gunzip_pid);

21
libbb/untar.c
View File

@ -56,12 +56,25 @@ extern int untar(FILE *src_tar_file, int untar_function, char *base_path)
long sum = 0;
char *dir = NULL;
if (ferror(src_tar_file) || feof(src_tar_file)) {
break;
}
uncompressed_count += 512;
/* Check header has valid magic */
if (strncmp(raw_tar_header.magic, "ustar", 5) != 0) {
/* Put this pack after TODO (check child still alive) is done */
error_msg("Invalid tar magic");
/*
* FIXME, Need HELP with this
*
* This has to fail silently or it incorrectly reports errors when called from
* deb_extract.
* The problem is deb_extract decompresses the .gz file in a child process and
* untar reads from the child proccess. The child process finishes and exits,
* but fread reads 0's from the src_tar_file even though the child
* closed its handle.
*/
// error_msg("Invalid tar magic");
break;
}
@ -109,7 +122,7 @@ extern int untar(FILE *src_tar_file, int untar_function, char *base_path)
}
*/
if (untar_function & (extract_verbose_extract | extract_contents)) {
if (untar_function & (extract_contents | extract_verbose_extract)) {
printf("%s\n", raw_tar_header.name);
}
@ -144,7 +157,7 @@ extern int untar(FILE *src_tar_file, int untar_function, char *base_path)
break;
}
case '5':
if (untar_function & (extract_extract | extract_verbose_extract)) {
if (untar_function & extract_extract) {
if (create_path(dir, mode) != TRUE) {
free(dir);
perror_msg("%s: Cannot mkdir", raw_tar_header.name);

6
usage.h
View File

@ -265,13 +265,13 @@
"WORK IN PROGRESS, only usefull for debian-installer"
#define dpkg_deb_trivial_usage \
"[-cexX] file directory"
"[-cefxX] file directory"
#define dpkg_deb_full_usage \
"Perform actions on debian packages (.debs)\n\n" \
"Options:\n" \
"\t-c\tList contents of filesystem tree (verbose)\n" \
"\t-l\tList contents of filesystem tree (.list format)\n" \
"\t-c\tList contents of filesystem tree\n" \
"\t-e\tExtract control files to directory\n" \
"\t-f\tExtract filesystem tree to stdout in tar format\n" \
"\t-x\tExctract packages filesystem tree to directory\n" \
"\t-X\tVerbose extract"
#define dpkg_deb_example_usage \