diff options
Diffstat (limited to 'src/user/app/netstack/fs.c')
| -rw-r--r-- | src/user/app/netstack/fs.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/user/app/netstack/fs.c b/src/user/app/netstack/fs.c index f4d9625..9f40ef8 100644 --- a/src/user/app/netstack/fs.c +++ b/src/user/app/netstack/fs.c @@ -12,6 +12,7 @@ */ #include "proto.h" #include "util.h" +#include <camellia/flags.h> #include <camellia/syscalls.h> #include <errno.h> #include <stdio.h> @@ -58,7 +59,9 @@ static void tcp_recv_callback(void *arg) { struct handle *h = arg; char buf[1024]; if (h->reqh >= 0) { - size_t len = tcpc_tryread(h->tcp.c, buf, sizeof buf); + if (h->tcp.readcap > sizeof buf) + h->tcp.readcap = sizeof buf; + size_t len = tcpc_tryread(h->tcp.c, buf, h->tcp.readcap); if (len > 0) { _syscall_fs_respond(h->reqh, buf, len, 0); h->reqh = -1; @@ -122,7 +125,7 @@ static void recv_enqueue(struct handle *h, handle_t reqh, size_t readcap) { } } -static void fs_open(handle_t reqh, char *path) { +static void fs_open(handle_t reqh, char *path, int flags) { #define respond(buf, val) do{ _syscall_fs_respond(reqh, buf, val, 0); return; }while(0) struct handle *h; if (*path != '/') respond(NULL, -1); @@ -140,6 +143,9 @@ static void fs_open(handle_t reqh, char *path) { respond(h, 0); } + /* everything below ends up sending packets */ + if (flags & OPEN_RO) respond(NULL, -EACCES); + char *save; const char *verb, *proto, *port_s; @@ -241,7 +247,7 @@ void fs_thread(void *arg) { (void)arg; case VFSOP_OPEN: if (res.len < buflen) { buf[res.len] = '\0'; - fs_open(reqh, buf); + fs_open(reqh, buf, res.flags); } else { _syscall_fs_respond(reqh, NULL, -1, 0); } |