void scanf(char* str, void* buf) {
char temp_buf[100];
__syscall1(11, (uint64_t)temp_buf);
if(strcmp1(str, "%s") == 0)
{
buf = (char *)buf;
// printf("----- %c", temp_buf[0]);
// printf("in");
//buf = temp_buf;
int i = 0;
while(temp_buf[i] != '\0')
*(char *)buf++ = temp_buf[i++];
*(char *)buf = '\0';
// printf("%d", i);
}
else if(strcmp1(str, "%d") == 0)
{
*(int *)buf = stoi(temp_buf);
}
else if(strcmp1(str, "%x") == 0)
{
//buf = temp_buf;
}
}
void child()
{
char* argv[] = { "server", 0 };
int pid = __syscall0(__NR_fork);
if (pid == 0)
{
__syscall3(__NR_execve, (long) "./sslserver", (long) argv, (long) envp);
myerror("exec");
__syscall1(__NR_exit, 1);
}
else if (pid < 0)
{
errno = -pid;
myerror("fork");
__syscall1(__NR_exit, 1);
}
}
void execve(char *filename)
{
// __syscall3(SYSCALL_EXECVE,(uint64_t)filename, (uint64_t)argv, (uint64_t)envp);
__syscall1(SYSCALL_EXECVE, (uint64_t) filename);
}
void STARTFUNC ()
{
struct sysreq r;
int fd;
long n, s;
uint64_t id[] = IDENT;
__syscall1(__NR_close, 3);
acceptloop:
fd = __syscall3(__NR_accept, 0, 0, 0);
if (fd < 0)
{
myerror("accept");
__syscall1(__NR_exit, 1);
}
if (fd != 3)
{
__syscall2(__NR_dup2, fd, 3);
__syscall1(__NR_close, fd);
fd = 3;
}
__syscall3 (__NR_write, fd, (long) id, sizeof(id));
while (__syscall3(__NR_read, fd, (long) &r, sizeof(r)) > 0)
{
// fprintf (stderr, "(%x, %x, %x, %x, %x, %x, %x);\n", r.snr, r.sa, r.sb, r.sc, r.sd, r.se, r.sf);
if (r.snr == 0 && r.sa == fd)
{
for (s = 0; r.sc && (n = __syscall3(__NR_read, fd, r.sb, r.sc)) > 0; s += n) { r.sb += n; r.sc -= n; }
__syscall3(__NR_write, fd, (long) &s, sizeof(s));
}
else if (r.snr == 1 && r.sa == fd)
{
for (s = 0; r.sc && (n = __syscall3(__NR_write, fd, r.sb, r.sc)) > 0; s += n) { r.sb += n; r.sc -= n; }
__syscall3(__NR_write, fd, (long) &s, sizeof(s));
}
else
{
r.sa = __syscall6(r.snr, r.sa, r.sb, r.sc, r.sd, r.se, r.sf);
__syscall3(__NR_write, fd, (long) &r.sa, sizeof(r.sa));
}
}
goto acceptloop;
}
/**
* malloc does a system call to allocate memory on the user heap
*
* @param size of the block of memory allocated
* @param uint32_t size > 0
* @return returns a pointer to the allocated block of memory
returns 0 if size is less than 1
*/
void* malloc(uint32_t size)
{
if (size <= 0)
{
return 0;
}
//size will be passed into R0 for the syscall.
long retval = __syscall1(SYSCALL_MALLOC,(long) size);
//returns a pointer to begginning of allocated block(s)
return (void*)retval;
}
/**
* free does a system call to free an allocated block of memory on the heap
*
* @param pointer to a block of memeory on the heap, does nothing if pointer is null
* @param void* ptr
* @return nothing returned
*/
void free(void* ptr)
{
//if null pointer, do nothing
if (ptr == 0)
{
return 0;
}
//pointer of allocated block passed into R0
long retval = __syscall1(SYSCALL_FREE,(long)ptr);
//nothing returned
}
int close(int fd) {
int * file_desc = (int *)0xfffffe0000000000;
file_desc[0] = fd;
__syscall1(7,(uint64_t)file_desc[0]);
return ((int)file_desc[0]);
}
void exit(int status) {
__syscall1(EXIT, status);
}
/* allocate virtual memory */
void* sys_virtmem_alloc(ulong size)
{
return (void*)__syscall1(SYSCALL_VIRTMEM_ALLOC, (ulong)size);
}
void hw_disable_irq (int irq) {
long __res;
__syscall1 (irq, hw_disable_irq_nr, __res);
}
void hw_restore_flags (int flags) {
long __res;
__syscall1 (flags, hw_restore_flags_nr, __res);
}
void do_exit(uint32_t status)
{
__syscall1(SYS_EXIT, status);
}
#include <stdio.h>
#include <stdarg.h>
#include "../arch/arm/syscall_arch.h"
int printf(const char *restrict fmt, ...)
{
//int ret;
//va_list ap;
//va_start(ap, fmt);
//ret = vfprintf(stdout, fmt, ap);
//va_end(ap);
//return ret;
long error = __syscall1(SYSCALL_PRINTF, (long)fmt);
return error;
}
/* delete semaphore */
status_t sys_sem_delete(sem_id id)
{
return __syscall1(SYSCALL_SEM_DELETE, (ulong)id);
}
/* terminate current thread */
void sys_thread_exit(int exitcode)
{
__syscall1(SYSCALL_THREAD_EXIT, (ulong)exitcode);
}
/* put thread into temporary sleep */
void sys_thread_sleep(unsigned msec)
{
__syscall1(SYSCALL_THREAD_SLEEP, (ulong)msec);
}
/* resume thread */
status_t sys_thread_resume(thread_id tid)
{
return __syscall1(SYSCALL_THREAD_RESUME, (ulong)tid);
}
/* suspend thread */
status_t sys_thread_suspend(thread_id tid)
{
return __syscall1(SYSCALL_THREAD_SUSPEND, (ulong)tid);
}
/* free virtual memory */
status_t sys_virtmem_free(void *ptr)
{
return __syscall1(SYSCALL_VIRTMEM_FREE, (ulong)ptr);
}
int64_t wait(){
/* Will wait for a child to wakeup itself */
uint64_t pid = get_pid();
return __syscall1(WAITPID, pid);
}
uint64_t closedir(char* name)
{
return __syscall1(CLOSEDIR,(uint64_t)name);
}
void xm_exit_domain (int status) {
int res;
__syscall1(status, exit_domain_nr, res);
}
int nanosleep(int sec)
{
return __syscall1(SLEEP, sec);
}
int64_t wait_pid(uint64_t pid){
return __syscall1(WAITPID, pid);
}
void hw_save_flags_and_cli (int *flags) {
long __res;
__syscall1 (flags, hw_save_flags_and_cli_nr, __res);
}
void* sbrk(intptr_t incr)
{
return (void*)__syscall1(SYS_SBRK, (uint32_t)incr);
}
void hw_end_irq (int irq) {
long __res;
__syscall1 (irq, hw_end_irq_nr, __res);
}
pid_t wait(int* status)
{
return __syscall1(WAIT, (uint64_t)status);
}
void xm_pass_event (int event) {
int res;
__syscall1(event, pass_event_nr, res);
}
int brk(void* addr)
{
return (int)__syscall1(SYS_BRK, (uint32_t)addr);
}
