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Diffstat (limited to 'src/database.c')
-rw-r--r--src/database.c67
1 files changed, 62 insertions, 5 deletions
diff --git a/src/database.c b/src/database.c
index 15757ff..4ed3ece 100644
--- a/src/database.c
+++ b/src/database.c
@@ -12,6 +12,7 @@
#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
+#include <limits.h>
#include <unistd.h>
#include <malloc.h>
#include <string.h>
@@ -137,6 +138,7 @@ static struct apk_db_dir *apk_db_dir_get(struct apk_database *db,
struct apk_db_dir *dir;
apk_blob_t bparent;
char *cstr;
+ int i;
if (name.len && name.ptr[name.len-1] == '/')
name.len--;
@@ -154,11 +156,22 @@ static struct apk_db_dir *apk_db_dir_get(struct apk_database *db,
if (name.len == 0)
dir->parent = NULL;
- else if (apk_blob_rsplit(name, '/', &bparent, NULL))
+ else if (apk_blob_rsplit(name, '/', &bparent, NULL))
dir->parent = apk_db_dir_get(db, bparent);
else
dir->parent = apk_db_dir_get(db, APK_BLOB_NULL);
+ if (dir->parent != NULL)
+ dir->flags = dir->parent->flags;
+
+ for (i = 0; i < db->protected_paths->num; i++) {
+ if (db->protected_paths->item[i][0] == '-' &&
+ strcmp(&db->protected_paths->item[i][1], dir->dirname) == 0)
+ dir->flags &= ~APK_DBDIRF_PROTECTED;
+ else if (strcmp(db->protected_paths->item[i], dir->dirname) == 0)
+ dir->flags |= APK_DBDIRF_PROTECTED;
+ }
+
return dir;
}
@@ -295,6 +308,16 @@ static int apk_db_read_fdb(struct apk_database *db, int fd)
file_dir_node = &file->dir_files_list.next;
file_pkg_node = &file->pkg_files_list.next;
break;
+ case 'C':
+ if (file == NULL) {
+ apk_error("FDB checksum entry before file entry");
+ return -1;
+ }
+ if (apk_hexdump_parse(APK_BLOB_BUF(file->csum), l)) {
+ apk_error("Not a valid checksum");
+ return -1;
+ }
+ break;
default:
apk_error("FDB entry '%c' unsupported", n);
return -1;
@@ -342,6 +365,12 @@ static int apk_db_write_fdb(struct apk_database *db, int fd)
n += snprintf(&buf[n], sizeof(buf)-n,
"F%s\n",
file->filename);
+ if (csum_valid(file->csum)) {
+ n += snprintf(&buf[n], sizeof(buf)-n, "C");
+ n += apk_hexdump_format(sizeof(buf)-n, &buf[n],
+ APK_BLOB_BUF(file->csum));
+ n += snprintf(&buf[n], sizeof(buf)-n, "\n");
+ }
if (write(fd, buf, n) != n)
return -1;
@@ -418,7 +447,7 @@ int apk_db_create(const char *root)
return 0;
}
-static int apk_db_read_config(struct apk_database *db)
+static int apk_db_read_state(struct apk_database *db)
{
struct apk_istream *is;
struct stat st;
@@ -466,8 +495,18 @@ static int apk_db_read_config(struct apk_database *db)
return 0;
}
+static int add_protected_path(void *ctx, apk_blob_t blob)
+{
+ struct apk_database *db = (struct apk_database *) ctx;
+
+ *apk_string_array_add(&db->protected_paths) = apk_blob_cstr(blob);
+ return 0;
+}
+
int apk_db_open(struct apk_database *db, const char *root)
{
+ apk_blob_t dirs;
+
memset(db, 0, sizeof(*db));
apk_hash_init(&db->available.names, &pkg_name_hash_ops, 1000);
apk_hash_init(&db->available.packages, &pkg_info_hash_ops, 4000);
@@ -485,7 +524,10 @@ int apk_db_open(struct apk_database *db, const char *root)
if (apk_repository != NULL)
apk_db_add_repository(db, apk_repository);
- return apk_db_read_config(db);
+ dirs = APK_BLOB_STR("etc:-etc/init.d");
+ apk_blob_for_each_segment(dirs, ":", add_protected_path, db);
+
+ return apk_db_read_state(db);
}
struct write_ctx {
@@ -668,7 +710,7 @@ int apk_db_recalculate_and_commit(struct apk_database *db)
}
static int apk_db_install_archive_entry(void *_ctx,
- const struct apk_archive_entry *ae,
+ const struct apk_file_info *ae,
struct apk_istream *is)
{
struct install_ctx *ctx = (struct install_ctx *) _ctx;
@@ -677,6 +719,8 @@ static int apk_db_install_archive_entry(void *_ctx,
apk_blob_t name = APK_BLOB_STR(ae->name);
struct apk_db_dir *dir;
struct apk_db_file *file;
+ struct apk_file_info fi;
+ char alt_name[PATH_MAX];
const char *p;
int r = 0, type = APK_SCRIPT_INVALID;
@@ -740,7 +784,20 @@ static int apk_db_install_archive_entry(void *_ctx,
if (strncmp(file->filename, ".keep_", 6) == 0)
return 0;
- r = apk_archive_entry_extract(ae, is, NULL);
+ if ((file->dir->flags & APK_DBDIRF_PROTECTED) &&
+ csum_valid(file->csum) &&
+ apk_file_get_info(ae->name, &fi) == 0 &&
+ memcmp(file->csum, fi.csum, sizeof(csum_t)) != 0) {
+ /* Protected file, which is modified locally.
+ * Extract to separate place */
+ snprintf(alt_name, sizeof(alt_name),
+ "%s/%s.apk-new",
+ dir->dirname, file->filename);
+ r = apk_archive_entry_extract(ae, is, alt_name);
+ } else {
+ r = apk_archive_entry_extract(ae, is, NULL);
+ }
+ memcpy(file->csum, ae->csum, sizeof(csum_t));
} else {
if (name.ptr[name.len-1] == '/')
name.len--;