1/* vi: set sw=4 ts=4: */ 2/* 3 * iod.c - Iterate a function on each entry of a directory 4 * 5 * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr> 6 * Laboratoire MASI, Institut Blaise Pascal 7 * Universite Pierre et Marie Curie (Paris VI) 8 * 9 * This file can be redistributed under the terms of the GNU Library General 10 * Public License 11 */ 12 13/* 14 * History: 15 * 93/10/30 - Creation 16 */ 17 18#include "e2p.h" 19#include <unistd.h> 20#include <stdlib.h> 21#include <string.h> 22 23int iterate_on_dir (const char * dir_name, 24 int (*func) (const char *, struct dirent *, void *), 25 void * private) 26{ 27 DIR * dir; 28 struct dirent *de, *dep; 29 int max_len, len; 30 31 max_len = PATH_MAX + sizeof(struct dirent); 32 de = xmalloc(max_len+1); 33 memset(de, 0, max_len+1); 34 35 dir = opendir (dir_name); 36 if (dir == NULL) { 37 free(de); 38 return -1; 39 } 40 while ((dep = readdir (dir))) { 41 len = sizeof(struct dirent); 42 if (len < dep->d_reclen) 43 len = dep->d_reclen; 44 if (len > max_len) 45 len = max_len; 46 memcpy(de, dep, len); 47 (*func) (dir_name, de, private); 48 } 49 free(de); 50 closedir(dir); 51 return 0; 52} 53