diff options
Diffstat (limited to 'contrib/bind9/lib/isc/unix/dir.c')
| -rw-r--r-- | contrib/bind9/lib/isc/unix/dir.c | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/contrib/bind9/lib/isc/unix/dir.c b/contrib/bind9/lib/isc/unix/dir.c deleted file mode 100644 index b627c88..0000000 --- a/contrib/bind9/lib/isc/unix/dir.c +++ /dev/null @@ -1,247 +0,0 @@ -/* - * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 1999-2001 Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, - * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM - * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE - * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -/* $Id: dir.c,v 1.20.18.3 2005/09/05 00:18:30 marka Exp $ */ - -/*! \file - * \author Principal Authors: DCL */ - -#include <config.h> - -#include <sys/types.h> -#include <sys/stat.h> - -#include <ctype.h> -#include <errno.h> -#include <unistd.h> - -#include <isc/dir.h> -#include <isc/magic.h> -#include <isc/string.h> -#include <isc/util.h> - -#include "errno2result.h" - -#define ISC_DIR_MAGIC ISC_MAGIC('D', 'I', 'R', '*') -#define VALID_DIR(dir) ISC_MAGIC_VALID(dir, ISC_DIR_MAGIC) - -void -isc_dir_init(isc_dir_t *dir) { - REQUIRE(dir != NULL); - - dir->entry.name[0] = '\0'; - dir->entry.length = 0; - - dir->handle = NULL; - - dir->magic = ISC_DIR_MAGIC; -} - -/*! - * \brief Allocate workspace and open directory stream. If either one fails, - * NULL will be returned. - */ -isc_result_t -isc_dir_open(isc_dir_t *dir, const char *dirname) { - char *p; - isc_result_t result = ISC_R_SUCCESS; - - REQUIRE(VALID_DIR(dir)); - REQUIRE(dirname != NULL); - - /* - * Copy directory name. Need to have enough space for the name, - * a possible path separator, the wildcard, and the final NUL. - */ - if (strlen(dirname) + 3 > sizeof(dir->dirname)) - /* XXXDCL ? */ - return (ISC_R_NOSPACE); - strcpy(dir->dirname, dirname); - - /* - * Append path separator, if needed, and "*". - */ - p = dir->dirname + strlen(dir->dirname); - if (dir->dirname < p && *(p - 1) != '/') - *p++ = '/'; - *p++ = '*'; - *p++ = '\0'; - - /* - * Open stream. - */ - dir->handle = opendir(dirname); - - if (dir->handle == NULL) - return isc__errno2result(errno); - - return (result); -} - -/*! - * \brief Return previously retrieved file or get next one. - - * Unix's dirent has - * separate open and read functions, but the Win32 and DOS interfaces open - * the dir stream and reads the first file in one operation. - */ -isc_result_t -isc_dir_read(isc_dir_t *dir) { - struct dirent *entry; - - REQUIRE(VALID_DIR(dir) && dir->handle != NULL); - - /* - * Fetch next file in directory. - */ - entry = readdir(dir->handle); - - if (entry == NULL) - return (ISC_R_NOMORE); - - /* - * Make sure that the space for the name is long enough. - */ - if (sizeof(dir->entry.name) <= strlen(entry->d_name)) - return (ISC_R_UNEXPECTED); - - strcpy(dir->entry.name, entry->d_name); - - /* - * Some dirents have d_namlen, but it is not portable. - */ - dir->entry.length = strlen(entry->d_name); - - return (ISC_R_SUCCESS); -} - -/*! - * \brief Close directory stream. - */ -void -isc_dir_close(isc_dir_t *dir) { - REQUIRE(VALID_DIR(dir) && dir->handle != NULL); - - (void)closedir(dir->handle); - dir->handle = NULL; -} - -/*! - * \brief Reposition directory stream at start. - */ -isc_result_t -isc_dir_reset(isc_dir_t *dir) { - REQUIRE(VALID_DIR(dir) && dir->handle != NULL); - - rewinddir(dir->handle); - - return (ISC_R_SUCCESS); -} - -isc_result_t -isc_dir_chdir(const char *dirname) { - /*! - * \brief Change the current directory to 'dirname'. - */ - - REQUIRE(dirname != NULL); - - if (chdir(dirname) < 0) - return (isc__errno2result(errno)); - - return (ISC_R_SUCCESS); -} - -isc_result_t -isc_dir_chroot(const char *dirname) { - - REQUIRE(dirname != NULL); - - if (chroot(dirname) < 0) - return (isc__errno2result(errno)); - - return (ISC_R_SUCCESS); -} - -isc_result_t -isc_dir_createunique(char *templet) { - isc_result_t result; - char *x; - char *p; - int i; - int pid; - - REQUIRE(templet != NULL); - - /*! - * \brief mkdtemp is not portable, so this emulates it. - */ - - pid = getpid(); - - /* - * Replace trailing Xs with the process-id, zero-filled. - */ - for (x = templet + strlen(templet) - 1; *x == 'X' && x >= templet; - x--, pid /= 10) - *x = pid % 10 + '0'; - - x++; /* Set x to start of ex-Xs. */ - - do { - i = mkdir(templet, 0700); - if (i == 0 || errno != EEXIST) - break; - - /* - * The BSD algorithm. - */ - p = x; - while (*p != '\0') { - if (isdigit(*p & 0xff)) - *p = 'a'; - else if (*p != 'z') - ++*p; - else { - /* - * Reset character and move to next. - */ - *p++ = 'a'; - continue; - } - - break; - } - - if (*p == '\0') { - /* - * Tried all combinations. errno should already - * be EEXIST, but ensure it is anyway for - * isc__errno2result(). - */ - errno = EEXIST; - break; - } - } while (1); - - if (i == -1) - result = isc__errno2result(errno); - else - result = ISC_R_SUCCESS; - - return (result); -} |
