mirror of
https://github.com/drasko/codezero.git
synced 2026-01-12 10:53:16 +01:00
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/*
|
|
* l4/posix glue for mkdir()
|
|
*
|
|
* Copyright (C) 2008 Bahadir Balban
|
|
*/
|
|
#include <shpage.h>
|
|
#include <libposix.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <l4lib/arch/syscalls.h>
|
|
#include <l4lib/arch/syslib.h>
|
|
#include <l4lib/ipcdefs.h>
|
|
#include <l4lib/utcb.h>
|
|
#include <l4/macros.h>
|
|
#include INC_GLUE(memory.h)
|
|
|
|
static inline int l4_chdir(const char *pathname)
|
|
{
|
|
int fd;
|
|
|
|
// write_mr(L4SYS_ARG0, (unsigned long)pathname);
|
|
copy_to_shpage((void *)pathname, 0, strlen(pathname) + 1);
|
|
write_mr(L4SYS_ARG0, (unsigned long)shared_page);
|
|
|
|
/* Call pager with shmget() request. Check ipc error. */
|
|
if ((fd = l4_sendrecv(VFS_TID, VFS_TID, L4_IPC_TAG_CHDIR)) < 0) {
|
|
print_err("%s: L4 IPC Error: %d.\n", __FUNCTION__, fd);
|
|
return fd;
|
|
}
|
|
/* Check if syscall itself was successful */
|
|
if ((fd = l4_get_retval()) < 0) {
|
|
print_err("%s: MKDIR Error: %d.\n", __FUNCTION__, fd);
|
|
return fd;
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
int chdir(const char *pathname)
|
|
{
|
|
int ret;
|
|
|
|
/* If error, return positive error code */
|
|
if ((ret = l4_chdir(pathname)) < 0) {
|
|
errno = -ret;
|
|
return -1;
|
|
}
|
|
/* else return value */
|
|
return ret;
|
|
}
|
|
|