From fc47a2c83c4b6c6d47f3c73fd3879fc92eb9c4b3 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 19 Jul 1996 21:41:07 +0000 Subject: updated w32 code by tulloh --- w32/compat/dirent.c | 376 ++++++++++++++++++++++++++-------------------------- 1 file changed, 188 insertions(+), 188 deletions(-) (limited to 'w32/compat') diff --git a/w32/compat/dirent.c b/w32/compat/dirent.c index f516eb9..25a7b74 100644 --- a/w32/compat/dirent.c +++ b/w32/compat/dirent.c @@ -1,188 +1,188 @@ -#include -#include -#include -#include -#include -#include "dirent.h" - - -DIR* -opendir(const char* pDirName) -{ - struct stat sb; - DIR* pDir; - char* pEndDirName; - int nBufferLen; - - /* sanity checks */ - if (!pDirName) { - errno = EINVAL; - return NULL; - } - if (stat(pDirName, &sb) != 0) { - errno = ENOENT; - return NULL; - } - if ((sb.st_mode & S_IFMT) != S_IFDIR) { - errno = ENOTDIR; - return NULL; - } - - /* allocate a DIR structure to return */ - pDir = (DIR *) malloc(sizeof (DIR)); - - if (!pDir) - return NULL; - - /* input directory name length */ - nBufferLen = strlen(pDirName); - - /* copy input directory name to DIR buffer */ - strcpy(pDir->dir_pDirectoryName, pDirName); - - /* point to end of the copied directory name */ - pEndDirName = &pDir->dir_pDirectoryName[nBufferLen - 1]; - - /* if directory name did not end in '/' or '\', add '/' */ - if ((*pEndDirName != '/') && (*pEndDirName != '\\')) { - pEndDirName++; - *pEndDirName = '/'; - } - - /* now append the wildcard character to the buffer */ - pEndDirName++; - *pEndDirName = '*'; - pEndDirName++; - *pEndDirName = '\0'; - - /* other values defaulted */ - pDir->dir_nNumFiles = 0; - pDir->dir_hDirHandle = INVALID_HANDLE_VALUE; - pDir->dir_ulCookie = __DIRENT_COOKIE; - - return pDir; -} - -void -closedir(DIR *pDir) -{ - /* got a valid pointer? */ - if (!pDir) { - errno = EINVAL; - return; - } - - /* sanity check that this is a DIR pointer */ - if (pDir->dir_ulCookie != __DIRENT_COOKIE) { - errno = EINVAL; - return; - } - - /* close the WIN32 directory handle */ - if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE) - FindClose(pDir->dir_hDirHandle); - - free(pDir); - - return; -} - -struct dirent * -readdir(DIR* pDir) -{ - WIN32_FIND_DATA wfdFindData; - - if (!pDir) { - errno = EINVAL; - return NULL; - } - - /* sanity check that this is a DIR pointer */ - if (pDir->dir_ulCookie != __DIRENT_COOKIE) { - errno = EINVAL; - return NULL; - } - - if (pDir->dir_nNumFiles == 0) { - pDir->dir_hDirHandle = FindFirstFile(pDir->dir_pDirectoryName, &wfdFindData); - if (pDir->dir_hDirHandle == INVALID_HANDLE_VALUE) - return NULL; - } else if (!FindNextFile(pDir->dir_hDirHandle, &wfdFindData)) - return NULL; - - /* bump count for next call to readdir() or telldir() */ - pDir->dir_nNumFiles++; - - /* fill in struct dirent values */ - pDir->dir_sdReturn.d_ino = -1; - strcpy(pDir->dir_sdReturn.d_name, wfdFindData.cFileName); - - return &pDir->dir_sdReturn; -} - -void -rewinddir(DIR* pDir) -{ - if (!pDir) { - errno = EINVAL; - return; - } - - /* sanity check that this is a DIR pointer */ - if (pDir->dir_ulCookie != __DIRENT_COOKIE) { - errno = EINVAL; - return; - } - - /* close the WIN32 directory handle */ - if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE) - if (!FindClose(pDir->dir_hDirHandle)) - errno = EBADF; - - /* reset members which control readdir() */ - pDir->dir_hDirHandle = INVALID_HANDLE_VALUE; - pDir->dir_nNumFiles = 0; - - return; -} - -int -telldir(DIR* pDir) -{ - if (!pDir) { - errno = EINVAL; - return -1; - } - - /* sanity check that this is a DIR pointer */ - if (pDir->dir_ulCookie != __DIRENT_COOKIE) { - errno = EINVAL; - return -1; - } - - /* return number of times readdir() called */ - return pDir->dir_nNumFiles; -} - -void -seekdir(DIR* pDir, long nPosition) -{ - if (!pDir) - return; - - /* sanity check that this is a DIR pointer */ - if (pDir->dir_ulCookie != __DIRENT_COOKIE) - return; - - /* go back to beginning of directory */ - rewinddir(pDir); - - /* loop until we have found position we care about */ - for (--nPosition; nPosition && readdir(pDir); nPosition--); - - /* flag invalid nPosition value */ - if (nPosition) - errno = EINVAL; - - return; -} +#include +#include +#include +#include +#include +#include "dirent.h" + + +DIR* +opendir(const char* pDirName) +{ + struct stat sb; + DIR* pDir; + char* pEndDirName; + int nBufferLen; + + /* sanity checks */ + if (!pDirName) { + errno = EINVAL; + return NULL; + } + if (stat(pDirName, &sb) != 0) { + errno = ENOENT; + return NULL; + } + if ((sb.st_mode & S_IFMT) != S_IFDIR) { + errno = ENOTDIR; + return NULL; + } + + /* allocate a DIR structure to return */ + pDir = (DIR *) malloc(sizeof (DIR)); + + if (!pDir) + return NULL; + + /* input directory name length */ + nBufferLen = strlen(pDirName); + + /* copy input directory name to DIR buffer */ + strcpy(pDir->dir_pDirectoryName, pDirName); + + /* point to end of the copied directory name */ + pEndDirName = &pDir->dir_pDirectoryName[nBufferLen - 1]; + + /* if directory name did not end in '/' or '\', add '/' */ + if ((*pEndDirName != '/') && (*pEndDirName != '\\')) { + pEndDirName++; + *pEndDirName = '/'; + } + + /* now append the wildcard character to the buffer */ + pEndDirName++; + *pEndDirName = '*'; + pEndDirName++; + *pEndDirName = '\0'; + + /* other values defaulted */ + pDir->dir_nNumFiles = 0; + pDir->dir_hDirHandle = INVALID_HANDLE_VALUE; + pDir->dir_ulCookie = __DIRENT_COOKIE; + + return pDir; +} + +void +closedir(DIR *pDir) +{ + /* got a valid pointer? */ + if (!pDir) { + errno = EINVAL; + return; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return; + } + + /* close the WIN32 directory handle */ + if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE) + FindClose(pDir->dir_hDirHandle); + + free(pDir); + + return; +} + +struct dirent * +readdir(DIR* pDir) +{ + WIN32_FIND_DATA wfdFindData; + + if (!pDir) { + errno = EINVAL; + return NULL; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return NULL; + } + + if (pDir->dir_nNumFiles == 0) { + pDir->dir_hDirHandle = FindFirstFile(pDir->dir_pDirectoryName, &wfdFindData); + if (pDir->dir_hDirHandle == INVALID_HANDLE_VALUE) + return NULL; + } else if (!FindNextFile(pDir->dir_hDirHandle, &wfdFindData)) + return NULL; + + /* bump count for next call to readdir() or telldir() */ + pDir->dir_nNumFiles++; + + /* fill in struct dirent values */ + pDir->dir_sdReturn.d_ino = -1; + strcpy(pDir->dir_sdReturn.d_name, wfdFindData.cFileName); + + return &pDir->dir_sdReturn; +} + +void +rewinddir(DIR* pDir) +{ + if (!pDir) { + errno = EINVAL; + return; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return; + } + + /* close the WIN32 directory handle */ + if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE) + if (!FindClose(pDir->dir_hDirHandle)) + errno = EBADF; + + /* reset members which control readdir() */ + pDir->dir_hDirHandle = INVALID_HANDLE_VALUE; + pDir->dir_nNumFiles = 0; + + return; +} + +int +telldir(DIR* pDir) +{ + if (!pDir) { + errno = EINVAL; + return -1; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return -1; + } + + /* return number of times readdir() called */ + return pDir->dir_nNumFiles; +} + +void +seekdir(DIR* pDir, long nPosition) +{ + if (!pDir) + return; + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) + return; + + /* go back to beginning of directory */ + rewinddir(pDir); + + /* loop until we have found position we care about */ + for (--nPosition; nPosition && readdir(pDir); nPosition--); + + /* flag invalid nPosition value */ + if (nPosition) + errno = EINVAL; + + return; +} -- cgit v1.2.3