mirrors/Astral
1
0
Fork 0
mirror of https://github.com/Mathewnd/Astral.git synced 2026-10-31 06:28:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

kernel: usercopy functions

Browse Source
This commit is contained in:
Matheus
2024-06-09 19:31:26 -03:00
parent 429f56aced
commit 50b4b45d00
53 changed files with 712 additions and 260 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel-src/sys/syscalls/getdent.c
+5 -8
View File
@@ -9,11 +9,6 @@ syscallret_t syscall_getdents(context_t *, int dirfd, void *ubuffer, size_t read
.ret = -1
};
if (ubuffer > USERSPACE_END) {
ret.errno = EFAULT;
return ret;
}
size_t count = readmax / sizeof(dent_t);
if (count == 0) {
@@ -46,11 +41,13 @@ syscallret_t syscall_getdents(context_t *, int dirfd, void *ubuffer, size_t read
goto cleanup;
fd->offset = offset + ret.ret;
ret.ret *= sizeof(dent_t);
// TODO safe memcpy
memcpy(ubuffer, buffer, ret.ret);
ret.errno = usercopy_touser(ubuffer, buffer, ret.ret);
if (ret.errno) {
ret.ret = -1;
goto cleanup;
}
cleanup:
free(buffer);