+++ /dev/null
-/*
- Copyright 2015 IoT.bzh
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-#define _GNU_SOURCE
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <assert.h>
-#include <syslog.h>
-#include <dirent.h>
-#include <stdio.h>
-
-#include "wgtpkg.h"
-
-struct fdb {
- unsigned int count;
- struct filedesc **files;
-};
-
-static struct fdb allfiles = { .count = 0, .files = NULL };
-static struct fdb allsignatures = { .count = 0, .files = NULL };
-
-static const char author_file[] = "author-signature.xml";
-static const char distributor_file_prefix[] = "signature";
-static const char distributor_file_suffix[] = ".xml";
-
-static unsigned int what_signature(const char *name)
-{
- unsigned int len, id, nid;
-
- if (!strcmp(name, author_file))
- return UINT_MAX;
-
- len = sizeof(distributor_file_prefix)-1;
- if (memcmp(name, distributor_file_prefix, len))
- return 0;
- if (name[len] <= '0' || name[len] > '9')
- return 0;
- id = (unsigned int)(name[len++] - '0');
- while ('0' <= name[len] && name[len] <= '9') {
- nid = 10 * id + (unsigned int)(name[len++] - '0');
- if (nid < id || nid == UINT_MAX) {
- syslog(LOG_WARNING, "number too big for %s", name);
- return 0;
- }
- id = nid;
- }
- if (strcmp(name+len, distributor_file_suffix))
- return 0;
-
- return id;
-}
-
-static struct filedesc *get_filedesc(const char *name, int create)
-{
- int cmp;
- unsigned int low, up, mid, sig;
- struct filedesc *result, **grow;
-
- /* search */
- low = 0;
- up = allfiles.count;
- while(low < up) {
- mid = (low + up) >> 1;
- result = allfiles.files[mid];
- cmp = strcmp(result->name, name);
- if (!cmp)
- return result; /* found */
- if (cmp > 0)
- up = mid;
- else
- low = mid + 1;
- }
-
- /* not found, can create ? */
- if (!create)
- return NULL;
-
- sig = what_signature(name);
-
- /* allocations */
- grow = realloc(allfiles.files, (allfiles.count + 1) * sizeof(struct filedesc *));
- if (grow == NULL) {
- syslog(LOG_ERR, "realloc failed in get_filedesc");
- return NULL;
- }
- allfiles.files = grow;
-
- if (sig) {
- grow = realloc(allsignatures.files, (allsignatures.count + 1) * sizeof(struct filedesc *));
- if (grow == NULL) {
- syslog(LOG_ERR, "second realloc failed in get_filedesc");
- return NULL;
- }
- allsignatures.files = grow;
- }
-
- result = malloc(sizeof(struct filedesc) + strlen(name));
- if (!result) {
- syslog(LOG_ERR, "calloc failed in get_filedesc");
- return NULL;
- }
-
- /* initialisation */
- result->type = type_unset;
- result->flags = sig == 0 ? 0 : sig == UINT_MAX ? flag_author_signature : flag_distributor_signature;
- result->zindex = 0;
- result->signum = sig;
- strcpy(result->name, name);
-
- /* insertion */
- if (low < allfiles.count)
- memmove(allfiles.files+low+1, allfiles.files+low, (allfiles.count - low) * sizeof(struct filedesc *));
- allfiles.files[low] = result;
- allfiles.count++;
- if (sig) {
- for (low = 0 ; low < allsignatures.count && sig > allsignatures.files[low]->signum ; low++);
- if (low < allsignatures.count)
- memmove(allsignatures.files+low+1, allsignatures.files+low, (allsignatures.count - low) * sizeof(struct filedesc *));
- allsignatures.files[low] = result;
- allsignatures.count++;
- }
-
- return result;
-}
-
-
-static struct filedesc *file_add(const char *name, enum entrytype type)
-{
- struct filedesc *desc;
-
- desc = get_filedesc(name, 1);
- if (!desc)
- errno = ENOMEM;
- else if (desc->type == type_unset)
- desc->type = type;
- else {
- syslog(LOG_ERR, "redeclaration of %s in file_add", name);
- errno = EEXIST;
- desc = NULL;
- }
- return desc;
-}
-
-void file_reset()
-{
- unsigned int i;
-
- allsignatures.count = 0;
- for (i = 0 ; i < allfiles.count ; i++)
- free(allfiles.files[i]);
- allfiles.count = 0;
-}
-
-unsigned int file_count()
-{
- return allfiles.count;
-}
-
-struct filedesc *file_of_index(unsigned int index)
-{
- assert(index < allfiles.count);
- return allfiles.files[index];
-}
-
-struct filedesc *file_of_name(const char *name)
-{
- return get_filedesc(name, 0);
-}
-
-struct filedesc *file_add_directory(const char *name)
-{
- return file_add(name, type_directory);
-}
-
-struct filedesc *file_add_file(const char *name)
-{
- return file_add(name, type_file);
-}
-
-unsigned int signature_count()
-{
- return allsignatures.count;
-}
-
-struct filedesc *signature_of_index(unsigned int index)
-{
- assert(index < allsignatures.count);
- return allsignatures.files[index];
-}
-
-struct filedesc *get_signature(unsigned int number)
-{
- unsigned int idx;
-
- if (number == 0)
- number = UINT_MAX;
- for (idx = 0 ; idx < allsignatures.count ; idx++)
- if (allsignatures.files[idx]->signum == number)
- return allsignatures.files[idx];
- return NULL;
-}
-
-struct filedesc *create_signature(unsigned int number)
-{
- struct filedesc *result;
- char *name;
- int len;
-
- result = NULL;
- if (number == 0 || number == UINT_MAX)
- len = asprintf(&name, "%s", author_file);
- else
- len = asprintf(&name, "%s%u%s", distributor_file_prefix, number, distributor_file_suffix);
-
- if (len < 0)
- syslog(LOG_ERR, "asprintf failed in create_signature");
- else {
- assert(len > 0);
- result = file_of_name(name);
- if (result == NULL)
- result = file_add_file(name);
- free(name);
- }
-
- return result;
-}
-
-/* remove flags that are not related to being signature */
-void file_clear_flags()
-{
- unsigned int i;
- for (i = 0 ; i < allfiles.count ; i++)
- allfiles.files[i]->flags &= flag_signature;
-}
-
-static int fill_files_rec(char name[PATH_MAX], int offset)
-{
- int len, err;
- DIR *dir;
- struct dirent *ent;
-
- if (offset == 0)
- dir = opendir(".");
- else {
- dir = opendir(name);
- name[offset++] = '/';
- }
- if (!dir) {
- syslog(LOG_ERR, "opendir %.*s failed in zwr", offset, name);
- return -1;
- }
-
- ent = readdir(dir);
- while (ent != NULL) {
- len = strlen(ent->d_name);
- if (ent->d_name[0] == '.' && (len == 1 ||
- (ent->d_name[1] == '.' && len == 2)))
- ;
- else if (offset + len >= PATH_MAX) {
- closedir(dir);
- syslog(LOG_ERR, "name too long in fill_files_rec");
- errno = ENAMETOOLONG;
- return -1;
- } else {
- memcpy(name + offset, ent->d_name, 1+len);
- switch (ent->d_type) {
- case DT_DIR:
- if (file_add_directory(name) == NULL) {
- closedir(dir);
- return -1;
- }
- err = fill_files_rec(name, offset + len);
- if (err) {
- closedir(dir);
- return err;
- }
- break;
- case DT_REG:
- if (file_add_file(name) == NULL) {
- closedir(dir);
- return -1;
- }
- break;
- default:
- break;
- }
- }
- ent = readdir(dir);
- }
-
- closedir(dir);
- return 0;
-}
-
-int fill_files()
-{
- char name[PATH_MAX];
- return fill_files_rec(name, 0);
-}
-
Code Review / src / app-framework-main.git / blobdiff