/* $NetBSD: dumpdata.c,v 1.2 2017/01/28 21:31:50 christos Exp $ */ /* * Copyright (c) 2005 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <config.h> #include <krb5/roken.h> /* * Write datablob to a filename, don't care about errors. */ ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL rk_dumpdata (const char *filename, const void *buf, size_t size) { int fd; fd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, 0640); if (fd < 0) return; net_write(fd, buf, size); close(fd); } /* * Read all data from a filename, care about errors. */ ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL rk_undumpdata(const char *filename, void **buf, size_t *size) { struct stat sb; int fd, ret; ssize_t sret; *buf = NULL; fd = open(filename, O_RDONLY, 0); if (fd < 0) return errno; if (fstat(fd, &sb) != 0){ ret = errno; goto out; } *buf = malloc(sb.st_size); if (*buf == NULL) { ret = ENOMEM; goto out; } *size = sb.st_size; sret = net_read(fd, *buf, *size); if (sret < 0) ret = errno; else if (sret != (ssize_t)*size) ret = EINVAL; else ret = 0; out: if (ret) { free(*buf); *buf = NULL; } close(fd); return ret; } |