Lösungsbeispiel zu Blatt 9 (Aufgabe 13): files

files.h

/*
 *      files.h - Headerfile for SAM system dependent file status functions.
 *
 *      Martin Hasch, University of Ulm, January 1997.
 */

#include        "sam.h"

#define FILES_SUCCESS   0
#define FILES_FAILURE   (-1)

/*
 *      Update header according to status of given file.
 *      On success return FILES_SUCCESS, otherwise FILES_FAILURE.
 */
int files_getinfo(char *filename, sam_Header *header);

files.c

/*
 *      files.c - SAM system dependent file status functions.
 *
 *      Martin Hasch, University of Ulm, January 1997.
 */

#include        <sys/types.h>
#include        <sys/stat.h>
#include        "sam.h"
#include        "files.h"

/*
 *      Update header according to status of given file.
 *      On success return FILES_SUCCESS, otherwise FILES_FAILURE.
 */
int files_getinfo(char *filename, sam_Header *header)
{
        struct stat statbuf;

        if ( stat(filename, &statbuf) )
                return FILES_FAILURE;
        header->sam_size = (size_t) statbuf.st_size;
        header->sam_time = statbuf.st_mtime;
        return FILES_SUCCESS;
}