krb5/os/krbfileio.c

	krbfileio.c revision 505d05c73a6e56769f263d4803b22eddd168ee24
/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"


#include "k5-int.h"
#include <sys/file.h>
#include <fcntl.h>

#ifndef O_BINARY
#define O_BINARY    0
#endif

krb5_error_code
krb5_create_secure_file(krb5_context context, const char *pathname)

{
    int     fd;
    int     open_flag;

    open_flag = O_CREAT|O_EXCL|O_TRUNC|O_RDWR;

    /*
     * Make sure file name is reserved.
     * The O_BINARY flag is not a supported flag in the Solaris
     * open(2) system call, but it is included here to be consistent
     * with other open calls in the Kerberos library code.
     */

    fd = open(pathname, open_flag | O_BINARY, 0600);
    if (fd == -1) {
        return (errno);
    } else {
        close(fd);
        return (0);
    }
}

krb5_error_code
krb5_sync_disk_file(krb5_context context, FILE *fp)
{
    if (fp == NULL) {
        (void) fclose(fp);
        return (errno);
    }
    if ((fflush(fp) == EOF) || ferror(fp) || (fsync(fileno(fp)) == -1)) {
        return (errno);
    }
    return (0);
}