mirrors/Astral
1
0
Fork 0
mirror of https://github.com/Mathewnd/Astral.git synced 2026-10-27 12:48:22 +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/include/kernel/sock.h
+14 -3
View File
@@ -5,6 +5,7 @@
#include <kernel/vfs.h>
#include <mutex.h>
#include <kernel/poll.h>
#include <kernel/usercopy.h>
#define SOCKET_STATE_UNBOUND 0
#define SOCKET_STATE_BOUND 1
@@ -93,11 +94,16 @@ static inline int sock_addrtoabiaddr(int socktype, sockaddr_t *sockaddr, abisock
}
static inline int sock_copymsghdr(msghdr_t *khdr, msghdr_t *uhdr) {
memcpy(khdr, uhdr, sizeof(msghdr_t));
if (usercopy_fromuser(khdr, uhdr, sizeof(msghdr_t)))
return EFAULT;
iovec_t *iovectmp = alloc(sizeof(iovec_t) * khdr->iovcount);
if (iovectmp == NULL)
return ENOMEM;
memcpy(iovectmp, khdr->iov, sizeof(iovec_t) * khdr->iovcount);
if (usercopy_fromuser(iovectmp, khdr->iov, sizeof(iovec_t) * khdr->iovcount))
return EFAULT;
khdr->iov = iovectmp;
if (khdr->addr) {
@@ -106,7 +112,12 @@ static inline int sock_copymsghdr(msghdr_t *khdr, msghdr_t *uhdr) {
free(iovectmp);
return ENOMEM;
}
memcpy(addrtmp, khdr->addr, khdr->addrlen);
if (usercopy_fromuser(addrtmp, khdr->addr, khdr->addrlen)) {
free(iovectmp);
return EFAULT;
}
khdr->addr = addrtmp;
}