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