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Implement dpkg -l option, from Stefan Soucek (slightly modified)

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This commit is contained in:
Glenn L McGrath 2001-09-21 04:30:51 +00:00
parent 4c67c596d1
commit e73866181f
2 changed files with 106 additions and 8 deletions
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57
archival/dpkg.c
View File

@ -1127,6 +1127,48 @@ void all_control_list(char **remove_files, const char *package_name)
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 **argv)
break;
case 'l':
dpkg_opt |= dpkg_opt_list_installed;
break;
case 'P':
dpkg_opt |= dpkg_opt_purge;
dpkg_opt |= dpkg_opt_package_name;
@ -1320,14 +1363,20 @@ extern int dpkg_main(int argc, char **argv)
show_usage();
}
}
if ((argc == optind) || (dpkg_opt == 0)) {
/* check for non-otion argument if expected */
if ((dpkg_opt == 0) || ((argc == optind) && !(dpkg_opt && dpkg_opt_list_installed))) {
show_usage();
}
}
puts("(Reading database ... xxxxx files and directories installed.)");
/* puts("(Reading database ... xxxxx files and directories installed.)"); */
index_status_file("/var/lib/dpkg/status");
/* if the list action was given print the installed packages and exit */
if (dpkg_opt & dpkg_opt_list_installed) {
list_packages();
return(EXIT_SUCCESS);
}
/* Read arguments and store relevant info in structs */
deb_file = xmalloc(sizeof(deb_file_t));
while (optind < argc) {

57
dpkg.c
View File

@ -1127,6 +1127,48 @@ void all_control_list(char **remove_files, const char *package_name)
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 **argv)
break;
case 'l':
dpkg_opt |= dpkg_opt_list_installed;
break;
case 'P':
dpkg_opt |= dpkg_opt_purge;
dpkg_opt |= dpkg_opt_package_name;
@ -1320,14 +1363,20 @@ extern int dpkg_main(int argc, char **argv)
show_usage();
}
}
if ((argc == optind) || (dpkg_opt == 0)) {
/* check for non-otion argument if expected */
if ((dpkg_opt == 0) || ((argc == optind) && !(dpkg_opt && dpkg_opt_list_installed))) {
show_usage();
}
}
puts("(Reading database ... xxxxx files and directories installed.)");
/* puts("(Reading database ... xxxxx files and directories installed.)"); */
index_status_file("/var/lib/dpkg/status");
/* if the list action was given print the installed packages and exit */
if (dpkg_opt & dpkg_opt_list_installed) {
list_packages();
return(EXIT_SUCCESS);
}
/* Read arguments and store relevant info in structs */
deb_file = xmalloc(sizeof(deb_file_t));
while (optind < argc) {