/* * udev_utils.c - generic stuff used by udev * * Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org> * * This program 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 version 2 of the License. * * This program 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 this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include <stdlib.h> #include <stdio.h> #include <stddef.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <ctype.h> #include <dirent.h> #include <syslog.h> #include <sys/utsname.h> #include "udev.h" int log_priority(const char *priority) { char *endptr; int prio; prio = strtol(priority, &endptr, 10); if (endptr[0] == '\0') return prio; if (strncasecmp(priority, "err", 3) == 0) return LOG_ERR; if (strcasecmp(priority, "info") == 0) return LOG_INFO; if (strcasecmp(priority, "debug") == 0) return LOG_DEBUG; if (string_is_true(priority)) return LOG_ERR; return 0; } int name_list_add(struct list_head *name_list, const char *name, int sort) { struct name_entry *loop_name; struct name_entry *new_name; list_for_each_entry(loop_name, name_list, node) { /* avoid doubles */ if (strcmp(loop_name->name, name) == 0) { dbg("'%s' is already in the list", name); return 0; } } if (sort) list_for_each_entry(loop_name, name_list, node) { if (sort && strcmp(loop_name->name, name) > 0) break; } new_name = malloc(sizeof(struct name_entry)); if (new_name == NULL) { dbg("error malloc"); return -ENOMEM; } strlcpy(new_name->name, name, sizeof(new_name->name)); dbg("adding '%s'", new_name->name); list_add_tail(&new_name->node, &loop_name->node); return 0; } int name_list_key_add(struct list_head *name_list, const char *key, const char *value) { struct name_entry *loop_name; struct name_entry *new_name; list_for_each_entry(loop_name, name_list, node) { if (strncmp(loop_name->name, key, strlen(key)) == 0) { dbg("key already present '%s', replace it", loop_name->name); snprintf(loop_name->name, sizeof(loop_name->name), "%s=%s", key, value); loop_name->name[sizeof(loop_name->name)-1] = '\0'; return 0; } } new_name = malloc(sizeof(struct name_entry)); if (new_name == NULL) { dbg("error malloc"); return -ENOMEM; } snprintf(new_name->name, sizeof(new_name->name), "%s=%s", key, value); new_name->name[sizeof(new_name->name)-1] = '\0'; dbg("adding '%s'", new_name->name); list_add_tail(&new_name->node, &loop_name->node); return 0; } void name_list_cleanup(struct list_head *name_list) { struct name_entry *name_loop; struct name_entry *temp_loop; list_for_each_entry_safe(name_loop, temp_loop, name_list, node) { list_del(&name_loop->node); free(name_loop); } } /* calls function for every file found in specified directory */ int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix) { struct dirent *ent; DIR *dir; char *ext; char filename[PATH_SIZE]; dbg("open directory '%s'", dirname); dir = opendir(dirname); if (dir == NULL) { err("unable to open '%s': %s", dirname, strerror(errno)); return -1; } while (1) { ent = readdir(dir); if (ent == NULL || ent->d_name[0] == '\0') break; if ((ent->d_name[0] == '.') || (ent->d_name[0] == COMMENT_CHARACTER)) continue; /* look for file matching with specified suffix */ ext = strrchr(ent->d_name, '.'); if (ext == NULL) continue; if (strcmp(ext, suffix) != 0) continue; dbg("put file '%s/%s' in list", dirname, ent->d_name); snprintf(filename, sizeof(filename), "%s/%s", dirname, ent->d_name); filename[sizeof(filename)-1] = '\0'; name_list_add(name_list, filename, 1); } closedir(dir); return 0; }