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lib/libve/readfile.c
- This file was added.
Property | Old Value | New Value |
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svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* 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> | |||||
__FBSDID("$FreeBSD$"); | |||||
#include <libve.h> | |||||
unsigned char * | |||||
read_file(const char *path, size_t *len) | |||||
{ | |||||
int fd, m, n, x; | |||||
struct stat st; | |||||
unsigned char *buf; | |||||
if (len) | |||||
*len = 0; | |||||
if ((fd = open(path, O_RDONLY)) < 0) | |||||
return (NULL); | |||||
fstat(fd, &st); | |||||
if (len) | |||||
*len = st.st_size; | |||||
buf = malloc(st.st_size + 1); | |||||
for (x = 0, m = st.st_size; m > 0; ) { | |||||
n = read(fd, &buf[x], m); | |||||
if (n < 0) | |||||
break; | |||||
if (n > 0) { | |||||
m -= n; | |||||
x += n; | |||||
} | |||||
} | |||||
close(fd); | |||||
if (m == 0) { | |||||
buf[st.st_size] = '\0'; | |||||
return (buf); | |||||
} | |||||
free(buf); | |||||
return (NULL); | |||||
} |