archie/prospero/lib/pfs/is_file.c

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2024-05-27 16:13:40 +02:00
/*
* Copyright (c) 1994 by the University of Southern California
*
* For copying and distribution information, please see the file
* <usc-license.h>.
*/
#include <usc-license.h>
#include <sys/types.h>
#include <sys/stat.h>
/* Is this a file? uses stat() */
#include <pfs.h> /* for prototypes */
/* Is it a regular file? 1 = yes, 0 = no, -1 = failure? */
extern int
is_file(const char native_filename[])
{
struct stat st_buf;
if(stat(native_filename, &st_buf) == 0)
return S_ISREG(st_buf.st_mode) ? 1 : 0;
else
return -1;
}