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127 lines
2.9 KiB
127 lines
2.9 KiB
3 years ago
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//
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// filecopy.c
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//
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// Copies files from one file to another.
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// Contains both Unix & Native Win32 Implementations
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//
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// Part of the ht://Dig package <http://www.htdig.org/>
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// Copyright (c) 2003 The ht://Dig Group
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// For copyright details, see the file COPYING in your distribution
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// or the GNU Library General Public License (LGPL) version 2 or later or later
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// <http://www.gnu.org/copyleft/lgpl.html>
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//
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// Copyright (c) 2002 RightNow Technologies, Inc.
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// Donated to The ht://Dig Group under LGPL License
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#include <stdio.h>
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#else /* UNIX */
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#endif /* _WIN32 | UNIX */
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#include "filecopy.h"
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//----------------------------------------------------------------------
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// int file_copy (char * from, char * to, char flags)
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//----------------------------------------------------------------------
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//
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// copy file 'from' -> 'to'
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//
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// set flags to FILECOPY_OVERWRITE_ON to overwrite the 'to' file if
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// it exists
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//
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// set flags to FILECOPY_OVERWRITE_OFF to not overwrite the 'to' file
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// if it exists
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//
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// returns 0/FALSE if unsucessful
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// returns 1/TRUE if sucessful
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//
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//
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#ifdef _WIN32
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int file_copy (char * from, char * to, char flags)
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{
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if (flags == FILECOPY_OVERWRITE_ON)
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{
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//overwrite
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if (TRUE != (CopyFile(from , to, FALSE)))
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return (FALSE);
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}
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else if (flags == FILECOPY_OVERWRITE_OFF)
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{
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//don't overwrite
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if (TRUE != (CopyFile(from , to, TRUE)))
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return (FALSE);
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}
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else //bad flag
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{
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return (FALSE);
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}
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return (TRUE);
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}
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#else //UNIX
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int file_copy (char * from, char * to, char flags)
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{
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size_t nmemb;
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//int nmemb;
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FILE *ifp, *ofp;
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char buf[BUFSIZ];
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if (flags == FILECOPY_OVERWRITE_OFF) {
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if (access(to, F_OK) == 0) {
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//OUTLOG((FUNC, TRWRN, "file %s already exists\n", to));
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return(FALSE);
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}
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else if (errno != ENOENT) {
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//OUTLOG((FUNC, TRERR, "access(%s, F_OK) failed\n", to));
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return(FALSE);
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}
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}
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if ((ifp=fopen(from, "r")) == NULL) {
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//OUTLOG((FUNC, TRERR, "%s doesn't exist\n", from));
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return(FALSE);
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}
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if ((ofp=fopen(to, "w+")) == NULL) {
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//OUTLOG((FUNC, TRERR, "can't create %s\n", to));
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fclose(ifp);
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return(FALSE);
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}
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while ((nmemb=fread(buf, 1, sizeof(buf), ifp)) > 0) {
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if (fwrite(buf, 1, nmemb, ofp) != nmemb) {
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//OUTLOG((FUNC, TRERR, "fwrite failed\n"));
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fclose(ifp);
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fclose(ofp);
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return(FALSE);
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}
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}
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fclose(ifp);
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fclose(ofp);
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return (TRUE);
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}
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#endif /* _WIN32 | UNIX */
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