mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-09 04:36:31 +00:00
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*-
|
|
* Copyright (c) 2017-2018, Juniper Networks, Inc.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
|
|
* OWNER 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 <sys/cdefs.h>
|
|
#include <libsecureboot.h>
|
|
|
|
unsigned char *
|
|
read_fd(int fd, size_t len)
|
|
{
|
|
int m, n, x;
|
|
unsigned char *buf;
|
|
|
|
buf = malloc(len + 1);
|
|
if (buf != NULL) {
|
|
for (x = 0, m = len; m > 0; ) {
|
|
n = read(fd, &buf[x], m);
|
|
if (n < 0)
|
|
break;
|
|
if (n > 0) {
|
|
m -= n;
|
|
x += n;
|
|
}
|
|
}
|
|
if (m == 0) {
|
|
buf[len] = '\0';
|
|
return (buf);
|
|
}
|
|
free(buf);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
unsigned char *
|
|
read_file(const char *path, size_t *len)
|
|
{
|
|
struct stat st;
|
|
unsigned char *ucp;
|
|
int fd;
|
|
|
|
if (len)
|
|
*len = 0;
|
|
if ((fd = open(path, O_RDONLY)) < 0)
|
|
return (NULL);
|
|
fstat(fd, &st);
|
|
ucp = read_fd(fd, st.st_size);
|
|
close(fd);
|
|
if (ucp != NULL) {
|
|
if (len != NULL)
|
|
*len = st.st_size;
|
|
}
|
|
#ifdef _STANDALONE
|
|
else
|
|
printf("%s: out of memory! %lu\n", __func__,
|
|
(unsigned long)len);
|
|
#endif
|
|
|
|
return (ucp);
|
|
}
|
|
|