00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/* $NetBSD: dir.c,v 1.1.1.3 2014/12/10 03:34:31 christos Exp $ */
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/*
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* Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC")
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <errno.h>
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#include <unistd.h>
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#include <string.h>
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#include "dlz_minimal.h"
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#include "dir.h"
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void
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dir_init(dir_t *dir) {
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dir->entry.name[0] = '\0';
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dir->entry.length = 0;
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dir->handle = NULL;
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}
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isc_result_t
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dir_open(dir_t *dir, const char *dirname) {
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char *p;
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isc_result_t result = ISC_R_SUCCESS;
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if (strlen(dirname) + 3 > sizeof(dir->dirname))
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return (ISC_R_NOSPACE);
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strcpy(dir->dirname, dirname);
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p = dir->dirname + strlen(dir->dirname);
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if (dir->dirname < p && *(p - 1) != '/')
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*p++ = '/';
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*p++ = '*';
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*p = '\0';
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dir->handle = opendir(dirname);
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if (dir->handle == NULL) {
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switch (errno) {
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case ENOTDIR:
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case ELOOP:
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case EINVAL:
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case ENAMETOOLONG:
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case EBADF:
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result = ISC_R_INVALIDFILE;
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case ENOENT:
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result = ISC_R_FILENOTFOUND;
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case EACCES:
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case EPERM:
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result = ISC_R_NOPERM;
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case ENOMEM:
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result = ISC_R_NOMEMORY;
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default:
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result = ISC_R_UNEXPECTED;
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}
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}
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return (result);
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}
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/*!
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* \brief Return previously retrieved file or get next one.
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* Unix's dirent has
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* separate open and read functions, but the Win32 and DOS interfaces open
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* the dir stream and reads the first file in one operation.
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*/
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isc_result_t
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dir_read(dir_t *dir) {
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struct dirent *entry;
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entry = readdir(dir->handle);
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if (entry == NULL)
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return (ISC_R_NOMORE);
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if (sizeof(dir->entry.name) <= strlen(entry->d_name))
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return (ISC_R_UNEXPECTED);
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strcpy(dir->entry.name, entry->d_name);
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dir->entry.length = strlen(entry->d_name);
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return (ISC_R_SUCCESS);
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}
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/*!
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* \brief Close directory stream.
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*/
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void
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dir_close(dir_t *dir) {
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(void)closedir(dir->handle);
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dir->handle = NULL;
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}
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/*!
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* \brief Reposition directory stream at start.
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*/
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isc_result_t
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dir_reset(dir_t *dir) {
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rewinddir(dir->handle);
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return (ISC_R_SUCCESS);
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}
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