34b94bcd88
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@16868 ec53bebd-3082-4978-b11e-865c3cabbd6b
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Copyright (c) 2005 - 2006 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 "hx_locl.h"
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RCSID("$ID$");
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int
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_hx509_map_file(const char *fn, void **data, size_t *length, struct stat *rsb)
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{
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struct stat sb;
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size_t len;
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ssize_t l;
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int ret;
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void *d;
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int fd;
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*data = NULL;
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*length = 0;
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fd = open(fn, O_RDONLY);
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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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close(fd);
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return ret;
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}
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len = sb.st_size;
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d = malloc(len);
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if (d == NULL) {
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close(fd);
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return ENOMEM;
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}
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l = read(fd, d, len);
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close(fd);
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if (l < 0 || l != len) {
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free(d);
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return EINVAL;
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}
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if (rsb)
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*rsb = sb;
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*data = d;
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*length = len;
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return 0;
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}
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void
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_hx509_unmap_file(void *data, size_t len)
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{
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free(data);
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}
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int
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_hx509_write_file(const char *fn, const void *data, size_t length)
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{
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ssize_t sz;
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const unsigned char *p = data;
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int fd;
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fd = open(fn, O_WRONLY|O_TRUNC|O_CREAT, 0644);
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if (fd < 0)
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return errno;
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do {
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sz = write(fd, p, length);
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if (sz < 0) {
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int saved_errno = errno;
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close(fd);
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return saved_errno;
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}
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if (sz == 0)
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break;
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length -= sz;
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} while (length > 0);
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if (close(fd) == -1)
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return errno;
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return 0;
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}
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