mars_nwe/mars-libowfat
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now that gcc 11's static analyzer looks at array bounds in arguments

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like "char ip[4]", let's be more strict about that
This commit is contained in:
leitner
2021-04-27 17:39:42 +00:00
parent 07c3f0bf3d
commit 1217583e2b
22 changed files with 87 additions and 76 deletions
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13
socket/socket_accept4_flags.c
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@@ -10,6 +10,7 @@
#include <string.h>
#include "windoze.h"
#include "socket.h"
#include "iarray.h"
#include "havesl.h"
#ifdef __MINGW32__
@@ -22,13 +23,13 @@
#include "haveaccept4.h"
int socket_accept4_flags(int s, char *ip, uint16 *port, int flags) {
int socket_accept4_flags(int s, char ip[4], uint16 *port, int flags) {
struct sockaddr_in si;
socklen_t len = sizeof si;
int fd;
#ifdef __MINGW32__
io_entry* e=array_get(&io_fds,sizeof(io_entry),s);
io_entry* e=iarray_get(&io_fds,s);
if (e && e->inuse) {
int sa2len;
fd=-1;
@@ -42,14 +43,14 @@ incoming:
{
struct sockaddr* x,* y;
GetAcceptExSockaddrs(e->inbuf,0,200,200,&x,&sa2len,&y,&len);
if (len>sizeof(si)) len=sizeof(si);
if ((size_t)len>sizeof(si)) len=sizeof(si);
memcpy(&si,y,len);
}
fd=e->next_accept;
e->next_accept=0;
if (e->nonblock) {
if (io_fd_canwrite(fd)) {
io_entry* f=array_get(&io_fds,sizeof(io_entry),fd);
io_entry* f=iarray_get(&io_fds,fd);
if (f) {
f->nonblock=1;
// printf("setting fd %lu to non-blocking\n",(int)fd);
@@ -61,7 +62,7 @@ incoming:
/* no accept queued, queue one now. */
if (e->next_accept==0) {
e->next_accept=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if (e==-1)
if (e->next_accept==(SOCKET)-1)
return winsock2errno(-1);
}
if (AcceptEx(s,e->next_accept,e->inbuf,0,200,200,&e->errorcode,&e->or))
@@ -98,6 +99,7 @@ incoming:
/* if we get here, the kernel did not support accept4. */
if ((fd=accept(s,(void*) &si,&len))==-1)
return -1;
#ifndef __MINGW32__
if (flags & SOCKET_NONBLOCK) fl |= O_NDELAY;
if (flags & SOCKET_CLOEXEC) fl |= O_CLOEXEC;
/* On BSD the accepted socket inherits O_NDELAY and O_CLOEXEC, on
@@ -114,6 +116,7 @@ incoming:
#ifdef __linux__
}
#endif
#endif
#ifdef HAVE_ACCEPT4
}
#endif