/*
 * smoke.c — end-to-end smoke test.
 *
 * Linked with crt0.o + libc.a, -nostdlib -static: if this binary runs at
 * all, the whole chain works — entry point, main(), our string code, and
 * raw syscalls — with no dynamic linker and no glibc in the process.
 */

#include <string.h>
#include <unistd.h>

int main(void)
{
    static const char msg[] = "nulsl-libc smoke test: ok\n";

    if (strcmp("abc", "abc") != 0)
        return 1;
    if (strcmp("abc", "abd") == 0)
        return 2;
    if (strncmp("abcdef", "abcxyz", 3) != 0)
        return 3;
    if (strlen("nulsl") != 5)
        return 4;
    if (memcmp("abcd", "abce", 3) != 0)
        return 5;
    if (write(STDOUT_FILENO, msg, sizeof msg - 1) < 0)
        return 6;

    return 0;
}