diff options
Diffstat (limited to 'src/libudev/conf-files.c')
| -rw-r--r-- | src/libudev/conf-files.c | 157 |
1 files changed, 80 insertions, 77 deletions
diff --git a/src/libudev/conf-files.c b/src/libudev/conf-files.c index 8e8edd0b9c..6d99739353 100644 --- a/src/libudev/conf-files.c +++ b/src/libudev/conf-files.c @@ -37,27 +37,14 @@ #include "hashmap.h" #include "conf-files.h" -static int files_add(Hashmap *h, - const char *prefix, - const char *path, - const char *suffix) { - DIR *dir; - int r = 0; - - if (prefix) { - char *p = NULL; - - if (asprintf(&p, "%s/%s", prefix, path) < 0) { - r = -ENOMEM; - goto finish; - } - - dir = opendir(p); - free(p); - } else { - dir = opendir(path); - } +static int files_add(Hashmap *h, const char *root, const char *path, const char *suffix) { + _cleanup_closedir_ DIR *dir = NULL; + _cleanup_free_ char *dirpath = NULL; + + if (asprintf(&dirpath, "%s%s", root ? root : "", path) < 0) + return -ENOMEM; + dir = opendir(dirpath); if (!dir) { if (errno == ENOENT) return 0; @@ -67,14 +54,12 @@ static int files_add(Hashmap *h, for (;;) { struct dirent *de; union dirent_storage buf; - int k; char *p; + int r; - k = readdir_r(dir, &buf.de, &de); - if (k != 0) { - r = -k; - goto finish; - } + r = readdir_r(dir, &buf.de, &de); + if (r != 0) + return -r; if (!de) break; @@ -82,20 +67,24 @@ static int files_add(Hashmap *h, if (!dirent_is_file_with_suffix(de, suffix)) continue; - if (asprintf(&p, "%s/%s", path, de->d_name) < 0) { - r = -ENOMEM; - goto finish; - } + p = strjoin(dirpath, "/", de->d_name, NULL); + if (!p) + return -ENOMEM; - if (hashmap_put(h, path_get_file_name(p), p) <= 0) { - log_debug("Skip overridden file: %s.", p); + r = hashmap_put(h, path_get_file_name(p), p); + if (r == -EEXIST) { + log_debug("Skipping overridden file: %s.", p); + free(p); + } else if (r < 0) { + free(p); + return r; + } else if (r == 0) { + log_debug("Duplicate file %s", p); free(p); } } -finish: - closedir(dir); - return r; + return 0; } static int base_cmp(const void *a, const void *b) { @@ -106,70 +95,84 @@ static int base_cmp(const void *a, const void *b) { return strcmp(path_get_file_name(s1), path_get_file_name(s2)); } -int conf_files_list_strv(char ***strv, - const char *prefix, - const char *suffix, - const char **dirs) { - Hashmap *fh = NULL; - char **files = NULL; - const char **p; +static int conf_files_list_strv_internal(char ***strv, const char *suffix, const char *root, char **dirs) { + Hashmap *fh; + char **files, **p; int r; - assert(dirs); + assert(strv); + assert(suffix); + + /* This alters the dirs string array */ + if (!path_strv_canonicalize_uniq(dirs)) + return -ENOMEM; fh = hashmap_new(string_hash_func, string_compare_func); - if (!fh) { - r = -ENOMEM; - goto finish; - } + if (!fh) + return -ENOMEM; STRV_FOREACH(p, dirs) { - r = files_add(fh, prefix, *p, suffix); - if (r < 0) - log_warning("Failed to search for files in %s: %s", - *p, strerror(-r)); + r = files_add(fh, root, *p, suffix); + if (r == -ENOMEM) { + hashmap_free_free(fh); + return r; + } else if (r < 0) + log_debug("Failed to search for files in %s: %s", + *p, strerror(-r)); } files = hashmap_get_strv(fh); if (files == NULL) { - log_error("Failed to compose list of files."); - r = -ENOMEM; - goto finish; + hashmap_free_free(fh); + return -ENOMEM; } + qsort(files, hashmap_size(fh), sizeof(char *), base_cmp); - r = 0; + *strv = files; -finish: hashmap_free(fh); - *strv = files; - return r; + return 0; +} + +int conf_files_list_strv(char ***strv, const char *suffix, const char *root, const char* const* dirs) { + _cleanup_strv_free_ char **copy = NULL; + + assert(strv); + assert(suffix); + + copy = strv_copy((char**) dirs); + if (!copy) + return -ENOMEM; + + return conf_files_list_strv_internal(strv, suffix, root, copy); } -int conf_files_list(char ***strv, - const char *prefix, - const char *suffix, - const char *dir, ...) { - char **dirs = NULL; +int conf_files_list(char ***strv, const char *suffix, const char *root, const char *dir, ...) { + _cleanup_strv_free_ char **dirs = NULL; va_list ap; - int r; + + assert(strv); + assert(suffix); va_start(ap, dir); dirs = strv_new_ap(dir, ap); va_end(ap); - if (!dirs) { - r = -ENOMEM; - goto finish; - } - if (!path_strv_canonicalize(dirs)) { - r = -ENOMEM; - goto finish; - } - strv_uniq(dirs); + if (!dirs) + return -ENOMEM; + + return conf_files_list_strv_internal(strv, suffix, root, dirs); +} + +int conf_files_list_nulstr(char ***strv, const char *suffix, const char *root, const char *d) { + _cleanup_strv_free_ char **dirs = NULL; + + assert(strv); + assert(suffix); - r = conf_files_list_strv(strv, prefix, suffix, (const char **)dirs); + dirs = strv_split_nulstr(d); + if (!dirs) + return -ENOMEM; -finish: - strv_free(dirs); - return r; + return conf_files_list_strv_internal(strv, suffix, root, dirs); } |