/* Serval Distributed Numbering Architecture (DNA) Copyright (C) 2010 Paul Gardner-Stephen 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; either version 2 of the License, or (at your option) any later version. 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include <sys/types.h> #include <alloca.h> #include <dirent.h> #include "serval.h" int mkdirs(const char *path, mode_t mode) { return mkdirsn(path, strlen(path), mode); } int mkdirsn(const char *path, size_t len, mode_t mode) { if (len == 0) return WHY("Bug: empty path"); char *pathfrag = alloca(len + 1); strncpy(pathfrag, path, len); pathfrag[len] = '\0'; if (mkdir(pathfrag, mode) != -1) return 0; if (errno == EEXIST) { DIR *d = opendir(pathfrag); if (!d) { WHY_perror("opendir"); return WHYF("cannot access %s", pathfrag); } closedir(d); return 0; } if (errno == ENOENT) { const char *lastsep = path + len - 1; while (lastsep != path && *--lastsep != '/') ; while (lastsep != path && *--lastsep == '/') ; if (lastsep != path) { if (mkdirsn(path, lastsep - path + 1, mode) == -1) return -1; if (mkdir(pathfrag, mode) != -1) return 0; } } WHY_perror("mkdir"); return WHYF("cannot mkdir %s", pathfrag); }