int main(void)
{
heap_init();
char buffer[64];
char startString[] = "Please write 10 characters: \n";
char endString[] = "\nTest complete.\n";
void *pointer = malloc(sizeof(buffer));
syscall_write(FILEHANDLE_STDIN, startString, 30);
syscall_read(FILEHANDLE_STDIN, buffer, 10);
syscall_write(FILEHANDLE_STDIN, buffer, 10);
syscall_write(FILEHANDLE_STDIN, endString, 16);
syscall_halt();
return 0;
}
int main(void)
{
int fid;
int len = 32;
char buffer1[32] = "Hello this is first message";
char buffer2[32] = "Hello second message is up";
char buffer3[32] = "Third message coming your way";
char buffer4[32] = "Last but not least, message four";
fid = syscall_open("[pipe]test");
// printf("Fid from read is %d\n", fid);
// write one time
syscall_seek(fid,0);
syscall_write(fid,buffer1,len);
// write again
syscall_seek(fid,0);
syscall_write(fid,buffer2,len);
// write again
syscall_seek(fid,0);
syscall_write(fid,buffer3,len);
//try to remove the pipe
syscall_delete("[pipe]test");
// write again
syscall_seek(fid,0);
syscall_write(fid,buffer4,len);
return 0;
}
void ps_print(uint64_t pid,char*pname){
char str[10]= {0};
itoa_kernel(pid,str,10);
syscall_write(1,"PID:[",strlen_kernel("PID:["));
syscall_write(1,str,strlen_kernel(str));
syscall_write(1,"] TTY:pts/1 Process:[",strlen_kernel("] TTY:pts/1 Process:["));
syscall_write(1,pname,strlen_kernel(pname));
syscall_write(1,"]\n",2);
}
int main(void)
{
int i;
char str[3];
syscall_write(1, "Validprogram1: Caling 'vallidprogram2'\n",39);
syscall_exec(syscall_exec(validprog));
syscall_write(1,"That is it! Goodbye\n",20);
syscall_exit(4);
return 0;
}
void do_syscall(TrapFrame *tf) {
int id = tf->eax;
switch(id) {
case SYS_fork: syscall_fork(tf); break;
case SYS_exec: syscall_exec(tf); break;
case SYS_exit: syscall_exit(tf); break;
case SYS_getpid: syscall_getpid(tf); break;
case SYS_waitpid: syscall_waitpid(tf); break;
case SYS_puts1: printk((char*)(tf->ebx)); printk(" %d\n", current->pid); break;
case SYS_puts: syscall_puts(tf); break;
case SYS_read_line: syscall_read_line(tf); break;
case SYS_sleep: syscall_sleep(tf); break;
case SYS_open: syscall_open(tf); break;
case SYS_read: syscall_read(tf); break;
case SYS_write: syscall_write(tf); break;
case SYS_create: syscall_create(tf); break;
case SYS_close: syscall_close(tf); break;
case SYS_delete: syscall_delete(tf); break;
case SYS_lseek: syscall_lseek(tf); break;
case SYS_dup: syscall_dup(tf); break;
case SYS_dup2: syscall_dup2(tf); break;
case SYS_mkdir: syscall_mkdir(tf); break;
case SYS_rmdir: syscall_rmdir(tf); break;
case SYS_lsdir: syscall_lsdir(tf); break;
case SYS_chdir: syscall_chdir(tf); break;
//default: panic("Unknown system call type");
}
}
int cmd_show(int argc, char** argv) {
if (argc != 2) {
printf("Usage: show <file>\n");
return 1;
}
int fd;
if ((fd=syscall_open(argv[1])) < 0) {
printf("Could not open %s. Reason: %d\n", argv[1], fd);
return 1;
}
int rd;
char buffer[BUFFER_SIZE];
while ((rd = syscall_read(fd, buffer, BUFFER_SIZE))) {
int wr=0, thiswr;
while (wr < rd) {
if ((thiswr = syscall_write(1, buffer+wr, rd-wr)) <= 0) {
printf("\nCall to syscall_write() failed. Reason: %d.\n", wr);
syscall_close(fd);
return 1;
}
wr += thiswr;
}
}
if (rd < 0) {
printf("\nCall to syscall_read() failed. Reason: %d.\n", rd);
syscall_close(fd);
return 1;
} else {
syscall_close(fd);
return 0;
}
}
static ssize_t write_plain(struct bus *b, boxed_msg *box) {
int fd = box->fd;
uint8_t *msg = box->out_msg;
size_t msg_size = box->out_msg_size;
size_t sent_size = box->out_sent_size;
size_t rem = msg_size - sent_size;
BUS_LOG_SNPRINTF(b, 10, LOG_SENDER, b->udata, 64,
"write %p to %d, %zd bytes",
(void*)&msg[sent_size], fd, rem);
/* Attempt a single write. ('for' is due to continue-based retry.) */
for (;;) {
ssize_t wrsz = syscall_write(fd, &msg[sent_size], rem);
if (wrsz == -1) {
if (Util_IsResumableIOError(errno)) {
errno = 0;
continue;
} else {
/* will notify about closed socket upstream */
BUS_LOG_SNPRINTF(b, 1, LOG_SENDER, b->udata, 64,
"write: socket error writing, %s", strerror(errno));
errno = 0;
return -1;
}
} else if (wrsz > 0) {
BUS_LOG_SNPRINTF(b, 5, LOG_SENDER, b->udata, 64,
"sent: %zd", wrsz);
return wrsz;
} else {
return 0;
}
}
}
int main(int argc, char **argv) {
if (argc > 1) {
int i;
for (i = 1; i < argc; i++) {
int written = 0;
int len = strlen(argv[i]);
if(i > 1)
{
syscall_write(stdout, " " , 1 );
}
while (written < len) {
written += syscall_write(stdout, (void*)(argv[i] + written), len - written);
}
}
syscall_write(stdout, "\n" , 1 );
}
return 0;
}
/**
* Handle system calls. Interrupts are enabled when this function is
* called.
*
* @param user_context The userland context (CPU registers as they
* where when system call instruction was called in userland)
*/
void syscall_handle(context_t *user_context)
{
/* When a syscall is executed in userland, register a0 contains
* the number of the syscall. Registers a1, a2 and a3 contain the
* arguments of the syscall. The userland code expects that after
* returning from the syscall instruction the return value of the
* syscall is found in register v0. Before entering this function
* the userland context has been saved to user_context and after
* returning from this function the userland context will be
* restored from user_context.
*/
int retval;
switch(user_context->cpu_regs[MIPS_REGISTER_A0]) {
case SYSCALL_HALT:
halt_kernel();
break;
case SYSCALL_EXEC:
retval = (int) process_spawn((char*) user_context->cpu_regs[MIPS_REGISTER_A1]);
user_context->cpu_regs[MIPS_REGISTER_V0] = retval;
break;
case SYSCALL_EXIT:
/* Resources are cleaned up in process_finish(...) */
process_finish(user_context->cpu_regs[MIPS_REGISTER_A1]);
break;
case SYSCALL_JOIN:
retval = process_join(user_context->cpu_regs[MIPS_REGISTER_A1]);
user_context->cpu_regs[MIPS_REGISTER_V0] = retval;
break;
case SYSCALL_READ:
{
int fhandle = user_context->cpu_regs[MIPS_REGISTER_A1];
int buffer = user_context->cpu_regs[MIPS_REGISTER_A2];
int length = user_context->cpu_regs[MIPS_REGISTER_A3];
int retval = syscall_read(fhandle, (void *)buffer, length);
user_context->cpu_regs[MIPS_REGISTER_V0] = retval;
}
break;
case SYSCALL_WRITE:
{
int fhandle = user_context->cpu_regs[MIPS_REGISTER_A1];
int buffer = user_context->cpu_regs[MIPS_REGISTER_A2];
int length = user_context->cpu_regs[MIPS_REGISTER_A3];
int retval = syscall_write(fhandle, (void *)buffer, length);
user_context->cpu_regs[MIPS_REGISTER_V0] = retval;
}
break;
default:
KERNEL_PANIC("Unhandled system call\n");
}
/* Move to next instruction after system call */
user_context->pc += 4;
}
int main(void)
{
char buffer[64];
char *ptr = buffer;
char intro[20] = "Press a button!";
char *introptr = intro;
int a = syscall_write(1, introptr, 15);
int b = syscall_read(0, ptr, 10);
int c = syscall_write(1, ptr, 10);
a = a;
b = b;
c = c;
syscall_halt();
return 0;
}
int main(void) {
char file[] = "[arkimedes]hej";
int handle = syscall_open((char const*) &file);
char buffer[128];
char buffer2[128];
syscall_read(handle, &buffer, 4);
syscall_write(handle, &buffer, 4);
syscall_seek(handle, 0);
syscall_read(handle, &buffer2, 11);
syscall_write(FILEHANDLE_STDOUT, &buffer2, 11);
syscall_close(handle);
syscall_delete((char const*) &file);
char file2[] = "[arkimedes]rasputin";
syscall_create((char const*) &file2, 11);
char buffer3[] = "\ngorbatjov\n";
handle = syscall_open((char const*) &file2);
syscall_write(handle, &buffer3, 11);
int ret_code = syscall_seek(handle, 12);
printf("\n%d\n", ret_code);
syscall_seek(handle, 0);
syscall_read(handle, &buffer3, 11);
syscall_write(FILEHANDLE_STDOUT, &buffer3, 11);
syscall_close(handle);
char file3[] = "[arkimedes]putin";
syscall_create((char const*) &file3, 11);
handle = syscall_open((char const*) &file3);
char buffer4[] = "\ngorbad\n";
syscall_write(handle, &buffer4, 11);
return 0;
}
int main(void)
{
int i;
char str[3];
syscall_write(1, "Hello, I am validprog, I will count to ten!\n",44);
str[1] = '\n';
str[2] = '\0';
/* syscall_join(syscall_exec(validprog));*/
for (i=0; i <= 10; i++)
{
str[0] = (char)i+36;
syscall_write(1,str,2);
}
syscall_write(1,"That is it! Goodbye\n",20);
syscall_exit(4);
return 0;
}
int main(void)
{
int pipeid;
char string[4];
pipeid = syscall_open("[pipe]test");
syscall_read(pipeid, string, 4);
syscall_write(1, string, 4);
printf("\n");
return 0;
}
int main(int argc, char **argv)
{
char s[10000];
int k,sum=0;
int fd0;
FILE *fd1;
initialize();
if (argc < 3)
{
printf("Usage:\n\ncpfile -o fimage-source host-target\ncpfile host-source fimage-target\n");
exit(0);
}
if (strcmp(argv[1], "-o") == 0)
{
fd0 = syscall_open(argv[2],O_RDONLY,0);
fd1 = fopen(argv[3],"wb");
if (fd0 < 0 || fd1 < 0)
{
printf("Error opening input/output files\n");
exit(0);
}
while ((k=syscall_read(fd0, s, 10000))>0)
{
fwrite(s,k,1,fd1);
sum += k;
}
syscall_close(fd0);
fclose(fd1);
}
else
{
fd0 = syscall_open(argv[2],O_WRONLY,0);
fd1 = fopen(argv[1],"rb");
if (fd0 < 0 || fd1 < 0)
{
printf("Error opening input/output files\n");
exit(0);
}
while ((k=fread(s, 1, 10000, fd1))>0)
{
syscall_write(fd0,s,k);
sum += k;
}
syscall_close(fd0);
fclose(fd1);
}
closeall();
//printf("Image copied\n");
return 0;
}
int main(void) {
char c;
while(1){
syscall_read(stdin,&c,1);
syscall_write(stdout,&c,1);
if (c == 'q') syscall_halt(); // press 'q' to quit
}
return 0;
}
int main(void) {
char* str = "balalaikka";
char* str2 = "ripkukkoparssinen";
char* ptrs[2];
ptrs[0] = str;
ptrs[1] = str2;
char argc = 2;
syscall_write(stdout, "starting execp test\n", 512);
int s = syscall_execp("[testi]argprint", argc, (const char**)ptrs);
return s;
}
int printf( char *format, ... ){
int slen = strlen( format ), i = 0, signed_int;
unsigned int unsigned_int;
char buf, *str;
va_list args;
va_start( args, format );
for ( i = 0; i < slen; i++ ){
if ( format[i] == '%' ){
switch( format[++i] ){
case '%':
buf = '%';
syscall_write( stdout, &buf, 1 );
break;
case 'c':
buf = va_arg( args, int );
syscall_write( stdout, &buf, 1 );
break;
case 's':
str = va_arg( args, char * );
syscall_write( stdout, str, strlen( str ));
break;
case 'd':
signed_int = va_arg( args, int );
print_num( signed_int );
break;
case 'u':
unsigned_int = va_arg( args, unsigned int );
print_num( unsigned_int );
break;
case 'x':
unsigned_int = va_arg( args, unsigned int );
print_hex( unsigned_int );
break;
}
} else {
syscall_write( stdout, &format[i], 1 );
}
}
int cmd_cp(int argc, char** argv) {
if (argc != 3 && argc != 4) {
printf("Usage: cp <from> <to> [size]\n");
return 1;
}
int fd1, fd2;
int size = argc == 4 ? atoi(argv[3]) : 0;
if ((fd1=syscall_open(argv[1])) < 0) {
printf("Could not open %s. Reason: %d\n", argv[1], fd1);
return 1;
}
if ((fd2=syscall_create(argv[2], size)) < 0) {
printf("Could not create %s with initial size %d. Reason: %d\n", argv[2], size, fd2);
syscall_close(fd1);
return 1;
}
if ((fd2=syscall_open(argv[2])) < 0) {
printf("Could not open newly created file %s. Reason: %d\n", argv[2], fd2);
syscall_close(fd1);
return 1;
}
int ret, i, rd, wr;
int totalread = 0, totalwritten = 0;
char buffer[BUFFER_SIZE];
while ((rd = syscall_read(fd1, buffer, BUFFER_SIZE))) {
i = 0;
totalread += rd;
clearline();
printf("Read %d bytes, wrote %d bytes.", totalread, totalwritten);
while (i < rd) {
if ((wr=syscall_write(fd2, buffer+i, rd-i)) <= 0) {
printf("\nCall to syscall_write() failed. Reason: %d.\n", wr);
if (wr == 0) {
printf("Did you remember to make the destination file big enough?\n");
}
ret=1;
goto exit;
}
totalwritten += wr;
i += wr;
clearline();
printf("Read %d bytes, wrote %d bytes.", totalread, totalwritten);
}
}
exit:
printf("\n");
syscall_close(fd1);
syscall_close(fd2);
return ret;
}
/* Write the string pointed to by s to standard output. Returns a
non-negative integer on success. */
int puts(const char* s)
{
int len = strlen(s);
int written = 0;
int ret;
do {
ret = syscall_write(stdout, s, len);
written += ret;
s += ret;
} while (written < len && ret > 0);
return written;
}
/*
* get system call
*/
static void
syscall_handler (struct intr_frame *f)
{
int *esp = (int *)syscall_user_to_kernel_vaddr(f->esp);
switch(*esp)
{
case SYS_WRITE:
syscall_write(f);
break;
case SYS_EXIT:
syscall_exit(f);
break;
case SYS_HALT:
syscall_halt(f);
break;
case SYS_EXEC:
syscall_exec(f);
break;
case SYS_CREATE:
syscall_create(f);
break;
case SYS_REMOVE:
syscall_remove(f);
break;
case SYS_OPEN:
syscall_open(f);
break;
case SYS_FILESIZE:
syscall_filesize(f);
break;
case SYS_READ:
syscall_read(f);
break;
case SYS_SEEK:
syscall_seek(f);
break;
case SYS_TELL:
syscall_tell(f);
break;
case SYS_CLOSE:
syscall_close(f);
break;
case SYS_WAIT:
syscall_wait(f);
break;
}
}
int main(int argc, char **argv) {
if (argc < 3) {
prints("Usage: fstest <filename> <n>\n");
return 1;
}
int blocksize = MAX_BLOCK_SIZE;
char *filename = argv[1];
int filesize = atoi(argv[2]);
if (blocksize > MAX_BLOCK_SIZE) {
prints("Blocksize must be smaller!\n");
return 1;
}
int filehandle = syscall_open(filename);
if (filehandle < 0) {
prints("failed to open file!\n");
return 3;
}
int written = 0;
while(written < filesize) {
int i;
int write = MIN(filesize - written, blocksize);
for (i = 0; i < write; i++) {
buffer[i] = char_for_pos(written + i);
}
write = syscall_write(filehandle, (void*)&buffer, write);
if (write <= 0) {
prints("failed to write!\n");
return 3;
}
written += write;
}
prints("OK, fstest wrote bytes. closing file\n");
if(syscall_close(filehandle) == -1) {
prints("OK, fstest file close failed\n");
return 1;
}
prints("OK, fstest closed file\n");
return 0;
}
/**
* Handle system calls. Interrupts are enabled when this function is
* called.
*
* @param user_context The userland context (CPU registers as they
* where when system call instruction was called in userland)
*/
void syscall_handle(context_t *user_context)
{
/* When a syscall is executed in userland, register a0 contains
* the number of the syscall. Registers a1, a2 and a3 contain the
* arguments of the syscall. The userland code expects that after
* returning from the syscall instruction the return value of the
* syscall is found in register v0. Before entering this function
* the userland context has been saved to user_context and after
* returning from this function the userland context will be
* restored from user_context.
*/
switch(user_context->cpu_regs[MIPS_REGISTER_A0]) {
case SYSCALL_HALT:
halt_kernel();
break;
case SYSCALL_READ:
user_context->cpu_regs[MIPS_REGISTER_V0] =
syscall_read(user_context->cpu_regs[MIPS_REGISTER_A1],
(void *)user_context->cpu_regs[MIPS_REGISTER_A2],
user_context->cpu_regs[MIPS_REGISTER_A3]);
break;
case SYSCALL_WRITE:
user_context->cpu_regs[MIPS_REGISTER_V0] =
syscall_write(user_context->cpu_regs[MIPS_REGISTER_A1],
(const void *)user_context->cpu_regs[MIPS_REGISTER_A2],
user_context->cpu_regs[MIPS_REGISTER_A3]);
break;
case SYSCALL_EXEC:
user_context->cpu_regs[MIPS_REGISTER_V0] =
syscall_exec((const char *)user_context->cpu_regs[MIPS_REGISTER_A1]);
break;
case SYSCALL_EXIT:
syscall_exit(user_context->cpu_regs[MIPS_REGISTER_A1]);
break;
case SYSCALL_JOIN:
user_context->cpu_regs[MIPS_REGISTER_V0] =
syscall_join(user_context->cpu_regs[MIPS_REGISTER_A1]);
break;
default:
KERNEL_PANIC("Unhandled system call\n");
}
/* Move to next instruction after system call */
user_context->pc += 4;
}
int main()
{
/* setup needed variables */
int fhin = FILEHANDLE_STDIN;
char* wbuff = "Oh hello there!! \nwhat is your name?\n";
char rbuff[64];
int c;
/* test the calls */
syscall_write(fhin,wbuff,37);
c = syscall_read(fhin,rbuff,63);
wbuff = "Hello";
syscall_write(fhin,wbuff,5);
syscall_write(fhin,rbuff,c);
wbuff = ", how are you doing today?\n";
syscall_write(fhin,wbuff,27);
c = syscall_read(fhin,rbuff,63);
wbuff = "Oh you're doing ";
syscall_write(fhin,wbuff,16);
syscall_write(fhin,rbuff,c);
wbuff = "!!!\n";
syscall_write(fhin,wbuff, 4);
wbuff = "Go on have a good day now!!";
syscall_write(fhin,wbuff, 28);
/* ensure proper system shut down */
syscall_halt();
return 0;
}
int main()
{
char buff[20];
syscall_delete(file1);
if (syscall_create(file1, 100) < 0)
fail("Couldn't create file :(\n");
int fd = syscall_open(file1);
if (fd < 0)
fail("Couldn't open file :(\n");
printf("Wrote %d bytes\n", syscall_write(fd, "Teststring!\n", 11));
if (syscall_seek(fd, 0) < 0)
fail("Couldn't seek :(\n");
printf("Read %d bytes\n", syscall_read(fd, buff, 20));
printf(buff);
syscall_halt();
return 0;
}
uint64_t syscall_exit(int32_t status)
{
if (curr_task->proc.fstructs[1] && curr_task->proc.pid != -1) {
syscall_write(1, "\0", 1);
}
if (curr_task->proc.pid == 1) {
if(status == 1){
update_foreground(&curr_task->proc,&curr_task->proc);
return 0;
}
printf("SBUSH shutting down...\nConsole will be active!\n");
}
resume_wait_proc(curr_task->proc.pid);
add_to_queue(&zqueue, curr_task);
if (curr_task->proc.fg) {
update_foreground(curr_task->proc.parent_fg,
curr_task->proc.parent_fg->parent_fg);
}
schedule(SCHED_DELETE, 0);
return 0;
}
/**
* Handle system calls. Interrupts are enabled when this function is
* called.
*/
uintptr_t syscall_entry(uintptr_t syscall,
uintptr_t arg0, uintptr_t arg1, uintptr_t arg2)
{
arg0 = arg0;
arg1 = arg1;
arg2 = arg2;
/* When a syscall is executed in userland, register a0 contains
* the number of the syscall. Registers a1, a2 and a3 contain the
* arguments of the syscall. The userland code expects that after
* returning from the syscall instruction the return value of the
* syscall is found in register v0. Before entering this function
* the userland context has been saved to user_context and after
* returning from this function the userland context will be
* restored from user_context.
*/
switch(syscall) {
case SYSCALL_HALT:
halt_kernel();
break;
case SYSCALL_READ:
return syscall_read((void*)arg1);
break;
case SYSCALL_WRITE:
return syscall_write((const void*)arg1, (int)arg2);
break;
case SYSCALL_SPAWN:
return syscall_spawn((char const*)arg0, (void*) arg1);
break;
case SYSCALL_EXIT:
syscall_exit((int)arg0);
break;
case SYSCALL_JOIN:
return process_join((int)arg0);
break;
default:
KERNEL_PANIC("Unhandled system call\n");
}
return 0;
}
int main() {
char* a_string;
/* Find the current (initial) heap end. */
a_string = syscall_memlimit(NULL);
/* Extend the heap, and check that it worked. */
if (syscall_memlimit(a_string + STRING_LENGTH) == NULL) {
/* It didn't work, so exit already. */
return 1;
}
/* Copy the source string to the dynamically allocated memory. */
for (size_t i = 0; i < STRING_LENGTH; i++) {
a_string[i] = STRING_SOURCE[i];
}
/* Write from the dynamically allocated memory. */
syscall_write(1, a_string, STRING_LENGTH);
return 0;
}
/* ------------------------------------------------------------------------ *
* Write either to the fd directly or to its queue. *
* ------------------------------------------------------------------------ */
int io_write(int fd, const void *buf, size_t n)
{
int ret;
/* Catch invalid arguments */
if(fd < 0) return -1;
if(n == 0) return 0;
/* fd is queued, write to the send queue */
if(io_list[fd].control.sendq)
{
ret = queue_write(&io_list[fd].sendq, buf, n);
if(io_list[fd].sendq.size)
io_set_events(fd, IO_WRITE);
return ret;
}
/* Write directly to fd */
switch(io_list[fd].type)
{
case FD_SOCKET:
#ifdef HAVE_SSL
if(io_list[fd].ssl)
return ssl_write(fd, buf, n);
else
#endif
return syscall_send(fd, buf, n, 0);
default:
case FD_FILE:
case FD_PIPE:
return syscall_write(fd, buf, n);
}
return -1;
}
/* Read character from standard input, with echoing. Returns a
non-negative integer on success, which can be casted to char. */
int getc(void)
{
char c = getc_raw();
syscall_write(stdout, &c, 1); /* Echo back at user. */
return c;
}
/* Write c to standard output. Returns a positive integer on
success. */
int putc(char c)
{
return syscall_write(stdout, &c, 1);
}