Files
RedBear-OS/recipes/tests/stdio/fwrite.c
T
vasilito b9874d0941 feat: USB storage read/write proof + full Red Bear OS tree sync
Add redbear-usb-storage-check in-guest binary that validates USB mass
storage read and write I/O: discovers /scheme/disk/ devices, writes a
test pattern to sector 2048, reads it back, verifies match, restores
original content. Updates test-usb-storage-qemu.sh with write-proof
verification step.

Includes all accumulated Red Bear OS work: kernel patches, relibc
patches, driver infrastructure, DRM/GPU, KDE recipes, firmware,
validation tooling, build system hardening, and documentation.
2026-05-03 23:03:24 +01:00

28 lines
478 B
C

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "test_helpers.h"
int main(void) {
FILE *f = fopen("stdio/fwrite.out", "w");
ERROR_IF(fopen, f, == NULL);
const char ptr[] = "Hello World!";
if (fwrite(ptr, 0, 17, f)) {
exit(EXIT_FAILURE);
}
if (fwrite(ptr, 7, 0, f)) {
exit(EXIT_FAILURE);
}
if (fwrite(ptr, 0, 0, f)) {
exit(EXIT_FAILURE);
}
fwrite(ptr, sizeof(ptr), 1, f);
fclose(f);
}