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author | 2015-12-09 14:35:04 +0100 | |
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committer | 2015-12-09 14:35:04 +0100 | |
commit | bf7b5918fcc07713a29b9ca32f766b65b15a4ec2 (patch) | |
tree | a4ad318995f3213cee35a2065fc3c4911e2012dc /wgtpkg-files.c | |
parent | 0270b7281b783cbea5c1f0ebb4440d2be1bd79fa (diff) |
refactoring sources
Change-Id: Id6d52eee86b706958972e9b345ec0d4d1e488146
Signed-off-by: José Bollo <jose.bollo@iot.bzh>
Diffstat (limited to 'wgtpkg-files.c')
-rw-r--r-- | wgtpkg-files.c | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/wgtpkg-files.c b/wgtpkg-files.c deleted file mode 100644 index 06aac83..0000000 --- a/wgtpkg-files.c +++ /dev/null @@ -1,313 +0,0 @@ -/* - 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); -} - |