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Convert file size to 32-bit type before writing.

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This commit is contained in:
rick-masters 2023-05-21 00:11:37 +00:00
parent 1603b81602
commit ef08891401
2 changed files with 7 additions and 3 deletions
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8
sysa/kexec-linux-1.0.0/files/kexec-linux.c
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@ -2,6 +2,7 @@
/* SPDX-License-Identifier: MIT */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/reboot.h>
#include <sys/stat.h>
@ -14,6 +15,7 @@ int main(int argc, char **argv) {
char *ramdrive_file_name, *kernel_file_name, *initramfs_file_name;
FILE *ramdrive_file;
struct stat stats;
uint32_t size;
if (argc < 3) {
puts("Usage: fiwix-kexec-linux <ram-drive-name> <kernel-file-name> <initramfs-file-name>");
@ -29,7 +31,8 @@ int main(int argc, char **argv) {
/* Write length of kernel */
if (stat(kernel_file_name, &stats) == 0) {
fwrite(&stats.st_size, 4, 1, ramdrive_file);
size = (uint32_t) stats.st_size;
fwrite(&size, sizeof(size), 1, ramdrive_file);
} else {
fprintf(stderr, "Cannot stat kernel file '%s'\n", kernel_file_name);
exit(1);
@ -37,7 +40,8 @@ int main(int argc, char **argv) {
/* Write length of initramfs */
if (stat(initramfs_file_name, &stats) == 0) {
fwrite(&stats.st_size, 4, 1, ramdrive_file);
size = (uint32_t) stats.st_size;
fwrite(&size, sizeof(size), 1, ramdrive_file);
} else {
fprintf(stderr, "Cannot stat initramfs file '%s'\n", initramfs_file_name);
exit(1);