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Patch from Randolfe Averty to fixup package conflict checks, cleanup some memory leaks and reorganise dependency checking.

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Some further memory leaks fixed by me.
This commit is contained in:
Glenn L McGrath 2002-05-29 13:45:34 +00:00
parent 1d4ef2a9e9
commit a94a06a38e
2 changed files with 127 additions and 75 deletions
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198
archival/dpkg.c
View File

@ -487,19 +487,17 @@ void add_split_dependencies(common_node_t *parent_node, const char *whole_line,
void free_package(common_node_t *node)
{
int i;
if (node != NULL) {
unsigned short i;
if (node) {
for (i = 0; i < node->num_of_edges; i++) {
if (node->edge[i] != NULL) {
if (node->edge[i]) {
free(node->edge[i]);
}
}
if (node->edge != NULL) {
if (node->edge) {
free(node->edge);
}
if (node != NULL) {
free(node);
}
free(node);
}
}
@ -905,9 +903,8 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
int state_status;
int state_flag;
int state_want;
unsigned int status_package_num;
int i = deb_start;
int j, k;
int j;
/* Check for conflicts
* TODO: TEST if conflicts with other packages to be installed
@ -948,38 +945,49 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
}
/* Check conflicts */
for (i = 0; i < conflicts_num; i++) {
/* Check for conflicts */
for (j = 0; j < STATUS_HASH_PRIME; j++) {
if (status_hashtable[j] == NULL) {
continue;
}
state_flag = get_status(j, 2);
state_status = get_status(j, 3);
if ((state_status != search_name_hashtable("installed"))
&& (state_flag != search_name_hashtable("want-install"))) {
continue;
}
status_package_num = status_hashtable[j]->package;
for (k = 0; k < package_hashtable[status_package_num]->num_of_edges; k++) {
const edge_t *package_edge = package_hashtable[status_package_num]->edge[k];
if (package_edge->type != EDGE_CONFLICTS) {
continue;
i = 0;
while (deb_file[i] != NULL) {
const common_node_t *package_node = package_hashtable[deb_file[i]->package];
int status_num = 0;
status_num = search_status_hashtable(name_hashtable[package_node->name]);
if (get_status(status_num, 3) == search_name_hashtable("installed")) {
i++;
continue;
}
for (j = 0; j < package_node->num_of_edges; j++) {
const edge_t *package_edge = package_node->edge[j];
const unsigned int package_num =
search_package_hashtable(package_edge->name,
package_edge->version, package_edge->operator);
if (package_edge->type == EDGE_CONFLICTS) {
int result = 0;
if (package_hashtable[package_num] != NULL) {
status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
state_status = get_status(status_num, 3);
state_flag = get_status(status_num, 1);
result = (state_status == search_name_hashtable("installed")) ||
(state_flag == search_name_hashtable("want-install"));
if (result) {
result = test_version(package_hashtable[deb_file[i]->package]->version,
package_edge->version, package_edge->operator);
}
}
if (package_edge->name != package_hashtable[conflicts[i]]->name) {
continue;
}
/* There is a conflict against the package name
* check if version conflict as well */
if (test_version(package_hashtable[deb_file[i]->package]->version,
package_edge->version, package_edge->operator)) {
error_msg_and_die("Package %s conflict with %s",
name_hashtable[package_hashtable[deb_file[i]->package]->name],
name_hashtable[package_hashtable[status_package_num]->name]);
if (result) {
error_msg_and_die("Package %s conflicts with %s",
name_hashtable[package_node->name],
name_hashtable[package_edge->name]);
}
}
}
}
i++;
}
/* Check dependendcies */
i = 0;
@ -987,40 +995,58 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
const common_node_t *package_node = package_hashtable[deb_file[i]->package];
int status_num = 0;
status_num = search_status_hashtable(name_hashtable[package_node->name]);
state_status = get_status(status_num, 3);
state_want = get_status(status_num, 1);
if (state_status == search_name_hashtable("installed")) {
i++;
continue;
}
for (j = 0; j < package_hashtable[deb_file[i]->package]->num_of_edges; j++) {
const edge_t *package_edge = package_node->edge[j];
unsigned int package_num;
package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
if (package_hashtable[package_num] == NULL) {
error_msg_and_die("Dependency checking failed for package %s\nNOTE: This may be due to busybox dpkg's inability to handle the Provides field, you may avoid dependency checking using the \"-F depends\" option ", name_hashtable[package_edge->name]);
}
status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
state_status = get_status(status_num, 3);
state_want = get_status(status_num, 1);
switch (package_edge->type) {
case(EDGE_PRE_DEPENDS):
case(EDGE_OR_PRE_DEPENDS):
case(EDGE_OR_PRE_DEPENDS): {
int result=1;
/* It must be already installed */
/* NOTE: This is untested, nothing apropriate in my status file */
if ((package_hashtable[package_num] == NULL) || (state_status != search_name_hashtable("installed"))) {
if (package_hashtable[package_num] != NULL) {
status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
state_status = get_status(status_num, 3);
state_want = get_status(status_num, 1);
result = (state_status != search_name_hashtable("installed"));
}
if (result) {
error_msg_and_die("Package %s pre-depends on %s, but it is not installed",
name_hashtable[package_node->name],
name_hashtable[package_edge->name]);
}
break;
}
case(EDGE_DEPENDS):
case(EDGE_OR_DEPENDS):
case(EDGE_OR_DEPENDS): {
int result=1;
if (package_hashtable[package_num] != NULL) {
status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
state_status = get_status(status_num, 3);
state_want = get_status(status_num, 1);
result=(state_status != search_name_hashtable("installed")) && (state_want != search_name_hashtable("want-install"));
}
/* It must be already installed, or to be installed */
if ((package_hashtable[package_num] == NULL) ||
((state_status != search_name_hashtable("installed")) &&
(state_want != search_name_hashtable("want_install")))) {
if (result) {
error_msg_and_die("Package %s depends on %s, but it is not installed, or flaged to be installed",
name_hashtable[package_node->name],
name_hashtable[package_edge->name]);
}
break;
}
}
}
i++;
@ -1032,7 +1058,7 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
char **create_list(const char *filename)
{
FILE *list_stream;
char **file_list = xmalloc(sizeof(char *));
char **file_list = NULL;
char *line = NULL;
int length = 0;
int count = 0;
@ -1040,12 +1066,11 @@ char **create_list(const char *filename)
/* dont use [xw]fopen here, handle error ourself */
list_stream = fopen(filename, "r");
if (list_stream == NULL) {
*file_list = NULL;
return(file_list);
return(NULL);
}
while (getline(&line, &length, list_stream) != -1) {
/* +2 as we need to include space for the terminating NULL pointer */
file_list = xrealloc(file_list, sizeof(char *) * (length + 2));
file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
chomp(line);
file_list[count] = xstrdup(line);
count++;
@ -1119,20 +1144,37 @@ int run_package_script(const char *package_name, const char *script_type)
return(result);
}
void all_control_list(char **remove_files, const char *package_name)
char **all_control_list(const char *package_name)
{
const char *all_extensions[11] = {"preinst", "postinst", "prerm", "postrm",
const char *extensions[11] = {"preinst", "postinst", "prerm", "postrm",
"list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
int i;
unsigned short i = 0;
char **remove_files;
/* Create a list of all /var/lib/dpkg/info/<package> files */
for(i = 0; i < 10; i++) {
remove_files[i] = xmalloc(strlen(package_name) + strlen(all_extensions[i]) + 21);
sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_extensions[i]);
remove_files = malloc(sizeof(char *) * 11);
while (extensions[i]) {
remove_files[i] = xmalloc(strlen(package_name) + strlen(extensions[i]) + 21);
sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, extensions[i]);
i++;
}
remove_files[10] = NULL;
return(remove_files);
}
void free_array(char **array)
{
if (array) {
unsigned short i = 0;
while (array[i]) {
free(array[i]);
i++;
}
free(array);
}
}
/* This function lists information on the installed packages. It loops through
* the status_hashtable to retrieve the info. This results in smaller code than
@ -1203,10 +1245,8 @@ void remove_package(const unsigned int package_num)
/* Some directories cant be removed straight away, so do multiple passes */
while (remove_file_array(remove_files, exclude_files));
/* Create a list of all /var/lib/dpkg/info/<package> files */
remove_files = xmalloc(sizeof(char *) * 11);
all_control_list(remove_files, package_name);
free_array(exclude_files);
free_array(remove_files);
/* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
exclude_files = xmalloc(sizeof(char*) * 3);
@ -1215,7 +1255,12 @@ void remove_package(const unsigned int package_num)
sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name);
exclude_files[2] = NULL;
/* Create a list of all /var/lib/dpkg/info/<package> files */
remove_files = all_control_list(package_name);
remove_file_array(remove_files, exclude_files);
free_array(remove_files);
free_array(exclude_files);
/* rename <package>.conffile to <package>.list */
rename(conffile_name, list_name);
@ -1242,16 +1287,18 @@ void purge_package(const unsigned int package_num)
sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
remove_files = create_list(list_name);
exclude_files = xmalloc(1);
exclude_files = xmalloc(sizeof(char*));
exclude_files[0] = NULL;
/* Some directories cant be removed straight away, so do multiple passes */
while (remove_file_array(remove_files, exclude_files));
free_array(remove_files);
/* Create a list of all /var/lib/dpkg/info/<package> files */
remove_files = xmalloc(sizeof(char *) * 11);
all_control_list(remove_files, package_name);
remove_files = all_control_list(package_name);
remove_file_array(remove_files, exclude_files);
free_array(remove_files);
free(exclude_files);
/* run postrm script */
if (run_package_script(package_name, "postrm") == -1) {
@ -1284,7 +1331,7 @@ void unpack_package(deb_file_t *deb_file)
}
/* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
info_prefix = (char *) xmalloc(sizeof(package_name) + 20 + 4 + 2);
info_prefix = (char *) xmalloc(strlen(package_name) + 20 + 4 + 2);
sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
deb_extract(deb_file->filename, stdout, (extract_quiet | extract_control_tar_gz | extract_all_to_fs | extract_unconditional), info_prefix, NULL);
@ -1328,7 +1375,7 @@ void configure_package(deb_file_t *deb_file)
set_status(status_num, "installed", 3);
}
extern int dpkg_main(int argc, char **argv)
int dpkg_main(int argc, char **argv)
{
deb_file_t **deb_file = NULL;
status_node_t *status_node;
@ -1388,8 +1435,9 @@ extern int dpkg_main(int argc, char **argv)
}
/* Read arguments and store relevant info in structs */
deb_file = xmalloc(sizeof(deb_file_t));
while (optind < argc) {
/* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2));
deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t));
if (dpkg_opt & dpkg_opt_filename) {
deb_file[deb_count]->filename = xstrdup(argv[optind]);
@ -1408,7 +1456,6 @@ extern int dpkg_main(int argc, char **argv)
if ((dpkg_opt & dpkg_opt_unpack) || (dpkg_opt & dpkg_opt_install)) {
status_node = (status_node_t *) xmalloc(sizeof(status_node_t));
status_node->package = deb_file[deb_count]->package;
/* Try and find a currently installed version of this package */
status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
/* If no previous entry was found initialise a new entry */
@ -1416,10 +1463,10 @@ extern int dpkg_main(int argc, char **argv)
(status_hashtable[status_num]->status == 0)) {
/* reinstreq isnt changed to "ok" until the package control info
* is written to the status file*/
status_node->status = search_name_hashtable("install reinstreq not-installed");
status_node->status = search_name_hashtable("want-install reinstreq not-installed");
status_hashtable[status_num] = status_node;
} else {
status_hashtable[status_num]->status = search_name_hashtable("install reinstreq installed");
status_hashtable[status_num]->status = search_name_hashtable("want-install reinstreq not-installed");
}
}
}
@ -1488,6 +1535,7 @@ extern int dpkg_main(int argc, char **argv)
free(deb_file[i]->filename);
free(deb_file[i]);
}
free(deb_file);
for (i = 0; i < NAME_HASH_PRIME; i++) {
@ -1497,7 +1545,9 @@ extern int dpkg_main(int argc, char **argv)
}
for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
free_package(package_hashtable[i]);
if (package_hashtable[i] != NULL) {
free_package(package_hashtable[i]);
}
}
for (i = 0; i < STATUS_HASH_PRIME; i++) {

4
archival/libunarchive/unarchive.c
View File

@ -192,7 +192,9 @@ char *extract_archive(FILE *src_stream, FILE *out_stream, const file_header_t *f
fprintf(out_stream, "%s\n", full_name);
}
free(full_name);
if (prefix != NULL) {
free(full_name);
}
return(NULL); /* Maybe we should say if failed */
}