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This commit is contained in:
Jeff Hill
1997-08-05 00:37:50 +00:00
parent d024459140
commit ecdd53438e
2 changed files with 212 additions and 0 deletions
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106
src/libCom/aToIPAddr.c Normal file
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/*
* rational replacement for inet_addr()
*
* author: Jeff Hill
*/
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include "osiSock.h"
#define epicsExportSharedSymbols
#include "ipAddrToA.h"
#ifndef NELEMENTS
#define NELEMENTS(A) (sizeof(A)/sizeof(A[0]))
#endif /*NELEMENTS*/
static int addrArrayToUL (const long *pAddr, unsigned nElements, unsigned long *pIpAddr);
static int initIPAddr (unsigned long ipAddr, unsigned short port, struct sockaddr_in *pIP);
/*
* rational replacement for inet_addr()
* which allows the limited broadcast address
* 255.255.255.255 and also allows the user
* to specify a port number
*
* Sets the port number to "defaultPort" only if
* "pAddrString" does not contain an addres of the form
* "n.n.n.n:p"
*/
epicsShareFunc int epicsShareAPI
aToIPAddr(const char *pAddrString, unsigned short defaultPort, struct sockaddr_in *pIP)
{
int status;
long addr[4];
int port;
unsigned long ipAddr;
status = sscanf (pAddrString, "%li.%li.%li.%li:%i",
addr, addr+1u, addr+2u, addr+3u, &port);
if (status==5) {
status = addrArrayToUL (addr, NELEMENTS(addr), &ipAddr);
if (status<0) {
return -1;
}
if (port<0 || port>USHRT_MAX) {
return -1;
}
return initIPAddr (ipAddr, (unsigned short) port, pIP);
}
status = sscanf (pAddrString, "%li.%li.%li.%li",
addr, addr+1u, addr+2u, addr+3u);
if (status==4) {
status = addrArrayToUL (addr, NELEMENTS(addr), &ipAddr);
if (status<0) {
return -1;
}
return initIPAddr (ipAddr, defaultPort, pIP);
}
status = sscanf (pAddrString, "%li", addr);
if (status==1) {
if (*addr<0x0 && *addr>0xffffffff) {
return -1;
}
return initIPAddr ((unsigned long)*addr, defaultPort, pIP);
}
return -1;
}
/*
* initIPAddr()
*/
static int initIPAddr (unsigned long ipAddr, unsigned short port, struct sockaddr_in *pIP)
{
if (port<=IPPORT_USERRESERVED) {
return -1;
}
memset (pIP, '\0', sizeof(*pIP));
pIP->sin_family = AF_INET;
pIP->sin_port = htons(port);
pIP->sin_addr.s_addr = htonl(ipAddr);
return 0;
}
/*
* addrArrayToUL()
*/
static int addrArrayToUL (const long *pAddr, unsigned nElements, unsigned long *pIpAddr)
{
unsigned i;
for (i=0u; i<nElements; i++) {
if (pAddr[i]<0x0 || pAddr[i]>0xff) {
return -1;
}
}
*pIpAddr = (unsigned long)
(pAddr[3u] | (pAddr[2u]<<8u) |
(pAddr[1u]<<16u) | (pAddr[0u]<<24u));
return 0;
}

106
src/libCom/misc/aToIPAddr.c Normal file
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@@ -0,0 +1,106 @@
/*
* rational replacement for inet_addr()
*
* author: Jeff Hill
*/
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include "osiSock.h"
#define epicsExportSharedSymbols
#include "ipAddrToA.h"
#ifndef NELEMENTS
#define NELEMENTS(A) (sizeof(A)/sizeof(A[0]))
#endif /*NELEMENTS*/
static int addrArrayToUL (const long *pAddr, unsigned nElements, unsigned long *pIpAddr);
static int initIPAddr (unsigned long ipAddr, unsigned short port, struct sockaddr_in *pIP);
/*
* rational replacement for inet_addr()
* which allows the limited broadcast address
* 255.255.255.255 and also allows the user
* to specify a port number
*
* Sets the port number to "defaultPort" only if
* "pAddrString" does not contain an addres of the form
* "n.n.n.n:p"
*/
epicsShareFunc int epicsShareAPI
aToIPAddr(const char *pAddrString, unsigned short defaultPort, struct sockaddr_in *pIP)
{
int status;
long addr[4];
int port;
unsigned long ipAddr;
status = sscanf (pAddrString, "%li.%li.%li.%li:%i",
addr, addr+1u, addr+2u, addr+3u, &port);
if (status==5) {
status = addrArrayToUL (addr, NELEMENTS(addr), &ipAddr);
if (status<0) {
return -1;
}
if (port<0 || port>USHRT_MAX) {
return -1;
}
return initIPAddr (ipAddr, (unsigned short) port, pIP);
}
status = sscanf (pAddrString, "%li.%li.%li.%li",
addr, addr+1u, addr+2u, addr+3u);
if (status==4) {
status = addrArrayToUL (addr, NELEMENTS(addr), &ipAddr);
if (status<0) {
return -1;
}
return initIPAddr (ipAddr, defaultPort, pIP);
}
status = sscanf (pAddrString, "%li", addr);
if (status==1) {
if (*addr<0x0 && *addr>0xffffffff) {
return -1;
}
return initIPAddr ((unsigned long)*addr, defaultPort, pIP);
}
return -1;
}
/*
* initIPAddr()
*/
static int initIPAddr (unsigned long ipAddr, unsigned short port, struct sockaddr_in *pIP)
{
if (port<=IPPORT_USERRESERVED) {
return -1;
}
memset (pIP, '\0', sizeof(*pIP));
pIP->sin_family = AF_INET;
pIP->sin_port = htons(port);
pIP->sin_addr.s_addr = htonl(ipAddr);
return 0;
}
/*
* addrArrayToUL()
*/
static int addrArrayToUL (const long *pAddr, unsigned nElements, unsigned long *pIpAddr)
{
unsigned i;
for (i=0u; i<nElements; i++) {
if (pAddr[i]<0x0 || pAddr[i]>0xff) {
return -1;
}
}
*pIpAddr = (unsigned long)
(pAddr[3u] | (pAddr[2u]<<8u) |
(pAddr[1u]<<16u) | (pAddr[0u]<<24u));
return 0;
}