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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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vol_300
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352_01
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feow.cpp
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C/C++ Source or Header
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1991-04-24
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// FEOW.C - function to ask user "File Exists, Over Write?"
// PARAMS: char dir = directory name. MUST HAVE strlen(dir) < MAXDIR
// char fn[8+1=3+1] = file name
//
// User gets chance to change file name, so provide storage for 8+1+3+1
// RETURNS: ENTER or ESCAPE
//
#include <stdlib.h>
#include <dir.h>
#include <sys\stat.h>
#include <string.h>
#include "wtwg.h"
#include "dblib.h"
int fe_ow ( char *dir, char *fn )
{
int key, len;
char msg[200+MAXPATH], path[MAXPATH];
char old_fn[8+1+3+1];
char new_fn[8+1+3+1];
struct stat statbuf;
memcpy ( old_fn, fn, sizeof(old_fn) );
old_fn[ sizeof(old_fn)-1 ] = 0;
key = 0;
do /* loop until old_fn has a non-duplicate file or ESCAPE */
{
strcpy ( path, dir );
len = strlen (dir);
if ( len >0 && dir[len-1]!= '\\' )
{
/* make sure last char in dir is a \\
*/
strcat ( path, "\\" );
}
strcat ( path, old_fn );
if ( -1 ==stat ( path, &statbuf ) )
{
errno =0;
key = ENTER; /* exits from loop */
}
else
{
/* file was found - therefore must be a duplicate
*/
sprintf ( msg, "File named %s already exists"
"in directory %s\n"
"Re-Enter the file name, or ESCAPE to quit", fn, dir );
strcpy ( new_fn, old_fn );
wsetlocation ( WLOC_ATCUR, 2, 2 );
key = wprompts ( " WARNING ", msg, new_fn, sizeof(new_fn) );
if (key==ENTER)
{
strcpy ( old_fn, new_fn );
key = 0; /* force repeat of loop to test new name */
} /* end if ENTER */
} /* end else... file is duplicate */
}
while ( ! (key==ENTER || key == ESCAPE) ); /* until valid choice */
if ( key == ENTER )
{
strcpy ( fn, old_fn ); /* give caller back unique filename */
}
return (key); /* fe_ow */
}
/*--------------------- end of FEOW.C -------------------------*/