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Added some comments. Does socket setup correctly. 

FossilOrigin-Name: 9544160736b702cbea47745418e8723621aa8a50c60aa6129b22303a2c99a3c5
This commit is contained in:
7u83@mail.ru 2016-03-20 14:23:27 +00:00
parent 6a4965ebe1
commit 59d21b531f
1 changed files with 29 additions and 32 deletions
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61
src/cw/sock_receive.c
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@ -1,7 +1,7 @@
/* /*
This file is part of libcapwap. This file is part of actube.
libcapwap is free software: you can redistribute it and/or modify actube is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or the Free Software Foundation, either version 3 of the License, or
(at your option) any later version. (at your option) any later version.
@ -16,6 +16,11 @@
*/ */
/**
* @file
* @brief Implementation of sock_receive
*/
#include <errno.h> #include <errno.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
@ -23,37 +28,29 @@
#include "sock.h" #include "sock.h"
int /**
sock_receive (int sock, void *buf, size_t len, int flags, * Receive data from a socket
struct sockaddr *srcaddr, socklen_t * addrlen) * @param sock the socket
* @param buf destination buffer
* @param len length of destination buffer
* @srcaddr receives the source address
* @srcaddrlen receives the length of the source address
* @return the number of bytes read oder -1 if an error has occured.
*
* If the return value is -1, errno is set to the appropriate error
*/
int sock_receive(int sock, void *buf, size_t len, int flags,
struct sockaddr *srcaddr, socklen_t * srcaddrlen)
{ {
// socklen_t al = sizeof(struct sockaddr_storage);
*srcaddrlen=sizeof(struct sockaddr);
memset(srcaddr, 0, sizeof(struct sockaddr));
//unsigned int al; int n;
socklen_t al; while ((n = recvfrom(sock, (char *) buf, len, flags, srcaddr, srcaddrlen)) < 0) {
if (errno != EINTR)
al = sizeof (struct sockaddr_storage); return n;
}
memset (srcaddr, 0, sizeof (struct sockaddr));
// srcaddr->sa_port=999;
int n;
while ((n = recvfrom (sock, (char *) buf, len, flags, srcaddr, &al)) < 0)
{
if (errno != EINTR)
return n; return n;
}
// printf("Received betes %d\n",n);
// char str[8000];
// sock_addrtostr(srcaddr,str,1000);
// printf("RECFROM: %s\n",str);
// struct sockaddr_in * s = (struct sockaddr_in*)srcaddr;
// s->sin_port=htons(78);
// sock_addrtostr(srcaddr,str,1000);
// printf("RECFROMset: %s\n",str);
// exit(9);
return n;
} }