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lib/libsecureboot/readfile.c
- This file was added.
| Property | Old Value | New Value |
|---|---|---|
| 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 <libsecureboot.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); | |||||
| } | |||||