mirror of
https://review.coreboot.org/flashrom.git
synced 2025-04-27 07:02:34 +02:00
3c1aa889d8
Constructing a buffer from a read file is auxiliary functionality to the core flashrom algorithms. Move aside to decrease the overall complexity of flashrom.c BUG=b:242246291 TEST=builds Change-Id: Ia6e1eeb876722899defb5b75346d1f22c70bfbd1 Signed-off-by: Edward O'Callaghan <quasisec@google.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/66645 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Evan Benn <evanbenn@google.com> Reviewed-by: Sam McNally <sammc@google.com> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Thomas Heijligen <src@posteo.de>
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/*
|
|
* This file is part of the flashrom project.
|
|
*
|
|
* Copyright (C) 2009-2010 Carl-Daniel Hailfinger
|
|
* Copyright (C) 2013 Stefan Tauner
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#ifndef __LIBPAYLOAD__
|
|
#include <sys/stat.h>
|
|
#endif
|
|
|
|
#include "flash.h"
|
|
|
|
int read_buf_from_file(unsigned char *buf, unsigned long size,
|
|
const char *filename)
|
|
{
|
|
#ifdef __LIBPAYLOAD__
|
|
msg_gerr("Error: No file I/O support in libpayload\n");
|
|
return 1;
|
|
#else
|
|
int ret = 0;
|
|
|
|
FILE *image;
|
|
if (!strcmp(filename, "-"))
|
|
image = fdopen(fileno(stdin), "rb");
|
|
else
|
|
image = fopen(filename, "rb");
|
|
if (image == NULL) {
|
|
msg_gerr("Error: opening file \"%s\" failed: %s\n", filename, strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
struct stat image_stat;
|
|
if (fstat(fileno(image), &image_stat) != 0) {
|
|
msg_gerr("Error: getting metadata of file \"%s\" failed: %s\n", filename, strerror(errno));
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
if ((image_stat.st_size != (intmax_t)size) && strcmp(filename, "-")) {
|
|
msg_gerr("Error: Image size (%jd B) doesn't match the expected size (%lu B)!\n",
|
|
(intmax_t)image_stat.st_size, size);
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
|
|
unsigned long numbytes = fread(buf, 1, size, image);
|
|
if (numbytes != size) {
|
|
msg_gerr("Error: Failed to read complete file. Got %ld bytes, "
|
|
"wanted %ld!\n", numbytes, size);
|
|
ret = 1;
|
|
}
|
|
out:
|
|
(void)fclose(image);
|
|
return ret;
|
|
#endif
|
|
}
|