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53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/*
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* l4/posix glue for mkdir()
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*
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* Copyright (C) 2008 Bahadir Balban
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <l4lib/arch/syscalls.h>
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#include <l4lib/arch/syslib.h>
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#include <l4lib/ipcdefs.h>
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#include <l4lib/utcb.h>
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#include <l4/macros.h>
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#include INC_GLUE(memory.h)
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static inline int l4_chdir(const char *pathname)
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{
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int fd;
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// write_mr(L4SYS_ARG0, (unsigned long)pathname);
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copy_to_utcb((void *)pathname, 0, strlen(pathname) + 1);
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write_mr(L4SYS_ARG0, (unsigned long)utcb_page);
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/* Call pager with shmget() request. Check ipc error. */
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if ((fd = l4_sendrecv(VFS_TID, VFS_TID, L4_IPC_TAG_CHDIR)) < 0) {
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printf("%s: L4 IPC Error: %d.\n", __FUNCTION__, fd);
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return fd;
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}
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/* Check if syscall itself was successful */
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if ((fd = l4_get_retval()) < 0) {
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printf("%s: MKDIR Error: %d.\n", __FUNCTION__, fd);
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return fd;
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}
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return fd;
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}
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int chdir(const char *pathname)
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{
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int ret;
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/* If error, return positive error code */
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if ((ret = l4_chdir(pathname)) < 0) {
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errno = -ret;
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return -1;
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}
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/* else return value */
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return ret;
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}
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