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Matheus
29 lines
502 B
C
29 lines
502 B
C
#include <kernel/syscalls.h>
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#include <kernel/file.h>
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#include <kernel/vfs.h>
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syscallret_t syscall_ioctl(context_t *, int fd, unsigned long request, void *arg) {
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syscallret_t ret = {
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.ret = -1
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};
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if (IS_USER_ADDRESS(arg) == false) {
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ret.errno = EFAULT;
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return ret;
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}
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file_t *file = fd_get(fd);
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if (file == NULL) {
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ret.errno = EBADF;
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return ret;
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}
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int r = 0;
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ret.errno = VOP_IOCTL(file->vnode, request, arg, &r);
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ret.ret = ret.errno ? -1 : r;
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fd_release(file);
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return ret;
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}
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