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Diffstat (limited to 'samsung-ipc/path_utils.c')
| -rw-r--r-- | samsung-ipc/path_utils.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/samsung-ipc/path_utils.c b/samsung-ipc/path_utils.c new file mode 100644 index 0000000..9cfc640 --- /dev/null +++ b/samsung-ipc/path_utils.c @@ -0,0 +1,163 @@ +/* + * This file is part of libsamsung-ipc. + * + * Copyright (C) 2013-2014 Paul Kocialkowski <contact@paulk.fr> + * + * libsamsung-ipc is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * libsamsung-ipc is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with libsamsung-ipc. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include <sys/stat.h> + +#include <samsung-ipc.h> + +#include "path_utils.h" + +int rmdir_p(struct ipc_client *client, + const char * const path, struct dir_infos *infos) +{ +#if 0 + char *_path; + char *startp; + char *endp; + uint64_t created_dirs = 0; + uint64_t dirs_depth = 0; + int rc; + + /* We want to be able to modify the path string to replace '/' + * with '\0' to avoid having to copy again and again string + * parts */ + _path = malloc(strlen(path) + 1); + if (_path == NULL) { + rc = errno; + ipc_client_log(client, + "%s: malloc _path failed with error %d: %s", + __func__, rc, strerror(rc)); + errno = rc; + return -1; + } + + memcpy(_path, path, strlen(path) + 1); + + startp = _path; + while (true) { + endp = strchr(startp + 1, '/'); + if (endp != NULL) + *endp = '\0'; + + //rc = mkdir(_path, mode); + if (rc == -1) { + rc = errno; + if (rc == EEXIST) { + dirs_depth++; + } else { + ipc_client_log(client, + "%s: mkdir %s failed with error %d: %s", + __func__, _path, rc, strerror(rc)); + rc = rmdir_p(client, _path, dirs_depth, created_dirs); + if (rc == -1) { + ipc_client_log(client, + "%s: rmdir_p %s failed", + __func__, _path); + } + return -1; + } + } else { + created_dirs |= (DIR_CREATED << dirs_depth); + dirs_depth++; + } + + if (endp == NULL) + break; + + startp = endp; + *endp = '/'; + } +#endif + return 0; +} + +int mkdir_p(struct ipc_client *client, + const char * const path, mode_t mode, struct dir_infos *infos) +{ + char *_path; + char *startp; + char *endp; + /* In case of errors we want to be able to remove (only) the + * directories we created, so we need to store what was + * already there and what we created. */ + uint64_t created_dirs = 0; + uint64_t dirs_depth = 0; + int rc; + + /* We want to be able to modify the path string to replace '/' + * with '\0' to avoid having to copy again and again string + * parts */ + _path = malloc(strlen(path) + 1); + if (_path == NULL) { + rc = errno; + ipc_client_log(client, + "%s: malloc _path failed with error %d: %s", + __func__, rc, strerror(rc)); + errno = rc; + return -1; + } + + memcpy(_path, path, strlen(path) + 1); + + startp = _path; + while (true) { + endp = strchr(startp + 1, '/'); + if (endp != NULL) + *endp = '\0'; + + rc = mkdir(_path, mode); + if (rc == -1) { + rc = errno; + if (rc == EEXIST) { + dirs_depth++; + } else { + ipc_client_log(client, + "%s: mkdir %s failed with error %d: %s", + __func__, _path, rc, strerror(rc)); + rc = rmdir_p(client, _path, infos); + if (rc == -1) { + ipc_client_log(client, + "%s: rmdir_p %s failed", + __func__, _path); + } + free(_path); + return -1; + } + } else { + created_dirs |= (DIR_CREATED << dirs_depth); + dirs_depth++; + } + + if (endp == NULL) + break; + + startp = endp; + *endp = '/'; + } + + free(_path); + return 0; +} |