[BusyBox] dpkg patch for '-l'
Stefan Soucek
ssoucek at coactive.com
Wed Sep 19 21:37:40 UTC 2001
Hi,
I have filled the '-l' action with life; with the following patch it lists
the installed packages (patch against CVS as of 9/19/2001). Please feel free
to use it!
-Stefan
--
Stefan Soucek, ssoucek at coactive.com
Coactive Networks, 28 Liberty Ship Way, Sausalito, CA 94965
Ph: (415) 289 7840, Fax: (415) 289 1320
--- dpkg.c Wed Sep 19 20:19:04 2001
+++ dpkg.c.new Wed Sep 19 20:18:49 2001
@@ -1127,6 +1127,48 @@ void all_control_list(char **remove_file
remove_files[10] = NULL;
}
+
+/* This function lists information on the installed packages. It loops
through
+ * the status_hashtable to retrieve the info. This results in smaller code
than
+ * scanning the status file. The resulting list, however, is unsorted.
+ */
+void list_packages(void)
+{
+ int i;
+
+ printf(" Name Version\n");
+ printf("+++-==============-==============\n");
+
+ /* go through status hash, dereference package hash and finally
strings */
+ for (i=0; i<STATUS_HASH_PRIME+1; i++) {
+
+ if (status_hashtable[i]) {
+ const char *stat_str; /* status string */
+ const char *name_str; /* package name */
+ const char *vers_str; /* version */
+ char s1, s2; /* status abbreviations */
+ int spccnt; /* space count */
+ int j;
+
+ stat_str =
name_hashtable[status_hashtable[i]->status];
+ name_str =
name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
+ vers_str =
name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
+
+ /* get abbreviation for status field 1 */
+ s1 = stat_str[0] == 'i' ? 'i' : 'r';
+
+ /* get abbreviation for status field 2 */
+ for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
+ if (stat_str[j] == ' ') spccnt++;
+ }
+ s2 = stat_str[j];
+
+ /* print out the line formatted like Debian dpkg */
+ printf("%c%c %-14s %s\n", s1, s2, name_str,
vers_str);
+ }
+ }
+}
+
void remove_package(const unsigned int package_num)
{
const char *package_name =
name_hashtable[package_hashtable[package_num]->name];
@@ -1304,6 +1346,7 @@ extern int dpkg_main(int argc, char **ar
break;
case 'l':
dpkg_opt |= dpkg_opt_list_installed;
+ break;
case 'P':
dpkg_opt |= dpkg_opt_purge;
dpkg_opt |= dpkg_opt_package_name;
@@ -1321,9 +1364,19 @@ extern int dpkg_main(int argc, char **ar
}
}
+ /* check for non-otion argument if expected */
+ if (dpkg_opt & (dpkg_opt_filename|dpkg_opt_package_name)) {
if ((argc == optind) || (dpkg_opt == 0)) {
show_usage();
}
+ }
+
+ /* if the list action was given print the installed packages and
exit */
+ if (dpkg_opt & dpkg_opt_list_installed) {
+ index_status_file("/var/lib/dpkg/status");
+ list_packages();
+ return(EXIT_SUCCESS);
+ }
puts("(Reading database ... xxxxx files and directories
installed.)");
index_status_file("/var/lib/dpkg/status");
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