diff options
Diffstat (limited to 'private/crt32/direct/findfile.c')
| -rw-r--r-- | private/crt32/direct/findfile.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/private/crt32/direct/findfile.c b/private/crt32/direct/findfile.c new file mode 100644 index 000000000..346c63f78 --- /dev/null +++ b/private/crt32/direct/findfile.c @@ -0,0 +1,224 @@ +/*** +*findfile.c - C find file functions +* +* Copyright (c) 1991-1993, Microsoft Corporation. All rights reserved. +* +*Purpose: +* Defines findfirst(), findnext(), and findclose(). +* +*Revision History: +* 08-21-91 BWM Wrote Win32 versions. +* 09-13-91 BWM Changed handle type to long. +* 08-18-92 SKS Add a call to FileTimeToLocalFileTime +* as a temporary fix until _dtoxtime takes UTC +* 08-26-92 SKS creation and last access time should be same as the +* last write time if ctime/atime are not available. +* 01-08-93 SKS Remove change I made 8-26-92. Previous behavior +* was deemed "by design" and preferable. +* 03-30-93 GJF Replaced reference to _dtoxtime with __gmtotime_t. Also +* made _timet_from_ft a static function. +* +*******************************************************************************/ + +#include <cruntime.h> +#include <oscalls.h> +#include <errno.h> +#include <io.h> +#include <time.h> +#include <ctime.h> +#include <string.h> +#include <internal.h> + +#if !defined(_WIN32_) +#error ERROR - ONLY WIN32 TARGET SUPPORTED! +#endif + +static time_t _CRTAPI3 _timet_from_ft(FILETIME * pft); + +/*** +*long findfirst(wildspec, finddata) - Find first matching file +* +*Purpose: +* Finds the first file matching a given wild card filespec and +* returns data about the file. +* +*Entry: +* char * wild - file spec optionally containing wild cards +* +* struct _finddata_t * finddata - structure to receive file data +* +*Exit: +* Good return: +* Unique handle identifying the group of files matching the spec +* +* Error return: +* Returns -1 and errno is set to error value +* +*Exceptions: +* None. +* +*******************************************************************************/ + +long _CRTAPI1 _findfirst(char * szWild, struct _finddata_t * pfd) +{ + WIN32_FIND_DATA wfd; + HANDLE hFile; + DWORD err; + + if ((hFile = FindFirstFile(szWild, &wfd)) == INVALID_HANDLE_VALUE) { + err = GetLastError(); + switch (err) { + case ERROR_NO_MORE_FILES: + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + errno = ENOENT; + break; + + case ERROR_NOT_ENOUGH_MEMORY: + errno = ENOMEM; + break; + + default: + errno = EINVAL; + break; + } + return (-1); + } + + pfd->attrib = (wfd.dwFileAttributes == FILE_ATTRIBUTE_NORMAL) + ? 0 : wfd.dwFileAttributes; + pfd->time_create = _timet_from_ft(&wfd.ftCreationTime); + pfd->time_access = _timet_from_ft(&wfd.ftLastAccessTime); + pfd->time_write = _timet_from_ft(&wfd.ftLastWriteTime); + pfd->size = wfd.nFileSizeLow; + strcpy(pfd->name, wfd.cFileName); + + return ((long)hFile); +} + +/*** +*int _findnext(hfind, finddata) - Find next matching file +* +*Purpose: +* Finds the next file matching a given wild card filespec and +* returns data about the file. +* +*Entry: +* hfind - handle from _findfirst +* +* struct _finddata_t * finddata - structure to receive file data +* +*Exit: +* Good return: +* 0 if file found +* -1 if error or file not found +* errno set +* +*Exceptions: +* None. +* +*******************************************************************************/ + +int _CRTAPI1 _findnext(long hFile, struct _finddata_t * pfd) +{ + WIN32_FIND_DATA wfd; + DWORD err; + + if (!FindNextFile((HANDLE)hFile, &wfd)) { + err = GetLastError(); + switch (err) { + case ERROR_NO_MORE_FILES: + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + errno = ENOENT; + break; + + case ERROR_NOT_ENOUGH_MEMORY: + errno = ENOMEM; + break; + + default: + errno = EINVAL; + break; + } + return (-1); + } + + pfd->attrib = (wfd.dwFileAttributes == FILE_ATTRIBUTE_NORMAL) + ? 0 : wfd.dwFileAttributes; + pfd->time_create = _timet_from_ft(&wfd.ftCreationTime); + pfd->time_access = _timet_from_ft(&wfd.ftLastAccessTime); + pfd->time_write = _timet_from_ft(&wfd.ftLastWriteTime); + pfd->size = wfd.nFileSizeLow; + strcpy(pfd->name, wfd.cFileName); + + return (0); +} + +/*** +*int _findclose(hfind) - Release resources of find +* +*Purpose: +* Releases resources of a group of files found by _findfirst and +* _findnext +* +*Entry: +* hfind - handle from _findfirst +* +*Exit: +* Good return: +* 0 if success +* -1 if fail, errno set +* +*Exceptions: +* None. +* +*******************************************************************************/ + +int _CRTAPI1 _findclose(long hFile) +{ + if (!FindClose((HANDLE)hFile)) { + errno = EINVAL; + return (-1); + } + return (0); +} + +/*** +*time_t _fttotimet(ft) - convert Win32 file time to Xenix time +* +*Purpose: +* converts a Win32 file time value to Xenix time_t +* +*Entry: +* int yr, mo, dy - date +* int hr, mn, sc - time +* +*Exit: +* returns Xenix time value +* +*Exceptions: +* +*******************************************************************************/ + +static time_t _CRTAPI3 _timet_from_ft(FILETIME * pft) +{ + SYSTEMTIME st; + + // 0 FILETIME returns a -1 time_t + + if (!pft->dwLowDateTime && !pft->dwHighDateTime) { + return (-1L); + } + + if (!FileTimeToSystemTime(pft, &st)) { + return (-1L); + } + + return ( __gmtotime_t(st.wYear, + st.wMonth, + st.wDay, + st.wHour, + st.wMinute, + st.wSecond) ); +} |