Files
RedBear-OS/recipes/tests/string/strlen.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

77 lines
1.8 KiB
C

#include <string.h>
#include <stdio.h>
#include "test_helpers.h"
int main(void) {
char dest1[13] = "hello world!";
int dest1_len = strlen(dest1);
printf("%d\n", dest1_len);
if(dest1_len != 12) {
puts("strlen(\"hello world!\") failed");
exit(EXIT_FAILURE);
}
char empty[1] = { 0 };
int empty_len = strlen(empty);
printf("%d\n", empty_len);
if(empty_len != 0) {
puts("strlen(\"\") failed");
exit(EXIT_FAILURE);
}
dest1_len = strnlen(dest1, sizeof(dest1));
printf("%d\n", dest1_len);
if(dest1_len != 12) {
puts("strnlen(\"hello world!\", 13) failed");
exit(EXIT_FAILURE);
}
dest1_len = strnlen(dest1, sizeof(dest1) - 1);
printf("%d\n", dest1_len);
if(dest1_len != 12) {
puts("strnlen(\"hello world!\", 12) failed");
exit(EXIT_FAILURE);
}
dest1_len = strnlen(dest1, 0);
printf("%d\n", dest1_len);
if(dest1_len != 0) {
puts("strnlen(\"hello world!\", 0) failed");
exit(EXIT_FAILURE);
}
dest1_len = strnlen(dest1, 300);
printf("%d\n", dest1_len);
if(dest1_len != 12) {
puts("strnlen(\"hello world!\", 300) failed");
exit(EXIT_FAILURE);
}
// no strnlen_s on glibc
#ifndef __GLIBC__
dest1_len = strnlen_s(dest1, 6);
printf("%d\n", dest1_len);
if(dest1_len != 6) {
puts("strnlen_s(\"hello world!\", 6) failed");
exit(EXIT_FAILURE);
}
dest1_len = strnlen_s(dest1, 20);
printf("%d\n", dest1_len);
if(dest1_len != 12) {
puts("strnlen_s(\"hello world!\", 20) failed");
exit(EXIT_FAILURE);
}
int null_len = strnlen_s(NULL, 100);
printf("%d\n", null_len);
if(null_len != 0) {
puts("strnlen_s(NULL, 100) failed");
exit(EXIT_FAILURE);
}
#endif
return 0;
}