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Ticket #358: link dynamically with IPHLPAPI.DLL 

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1409 74dad513-b988-da41-8d7b-12977e46ad98
This commit is contained in:
Benny Prijono 2007-07-28 01:58:36 +00:00
parent 75b2fb29b4
commit 48ef5a3d6c
1 changed files with 73 additions and 7 deletions
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80
pjlib/src/pj/ip_helper_win32.c
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@ -34,6 +34,72 @@
#include <pj/errno.h>
#include <pj/string.h>
typedef DWORD (WINAPI *PFN_GetIpAddrTable)(PMIB_IPADDRTABLE pIpAddrTable,
PULONG pdwSize,
BOOL bOrder);
typedef DWORD (WINAPI *PFN_GetIpForwardTable)(PMIB_IPFORWARDTABLE pIpForwardTable,
PULONG pdwSize,
BOOL bOrder);
static HANDLE s_hDLL;
static PFN_GetIpAddrTable s_pfnGetIpAddrTable;
static PFN_GetIpForwardTable s_pfnGetIpForwardTable;
static unload_iphlp_module(void)
{
FreeLibrary(s_hDLL);
s_hDLL = NULL;
s_pfnGetIpAddrTable = NULL;
s_pfnGetIpForwardTable = NULL;
}
static FARPROC GetIpHlpApiProc(pj_char_t *lpProcName)
{
if(NULL == s_hDLL) {
s_hDLL = LoadLibrary(PJ_T("IpHlpApi"));
if(NULL != s_hDLL) {
pj_atexit(&unload_iphlp_module);
}
}
if(NULL != s_hDLL)
return GetProcAddress(s_hDLL, lpProcName);
return NULL;
}
static DWORD MyGetIpAddrTable(PMIB_IPADDRTABLE pIpAddrTable,
PULONG pdwSize,
BOOL bOrder)
{
if(NULL == s_pfnGetIpAddrTable) {
s_pfnGetIpAddrTable = (PFN_GetIpAddrTable)
GetIpHlpApiProc(PJ_T("GetIpAddrTable"));
}
if(NULL != s_pfnGetIpAddrTable) {
return s_pfnGetIpAddrTable(pIpAddrTable, pdwSize, bOrder);
}
return ERROR_NOT_SUPPORTED;
}
static DWORD MyGetIpForwardTable(PMIB_IPFORWARDTABLE pIpForwardTable,
PULONG pdwSize,
BOOL bOrder)
{
if(NULL == s_pfnGetIpForwardTable) {
s_pfnGetIpForwardTable = (PFN_GetIpForwardTable)
GetIpHlpApiProc(PJ_T("GetIpForwardTable"));
}
if(NULL != s_pfnGetIpForwardTable) {
return s_pfnGetIpForwardTable(pIpForwardTable, pdwSize, bOrder);
}
return ERROR_NOT_SUPPORTED;
}
/*
* Enumerate the local IP interface currently active in the host.
@ -48,7 +114,7 @@ PJ_DEF(pj_status_t) pj_enum_ip_interface(unsigned *p_cnt,
MIB_IPADDRTABLE *pTab;
ULONG tabSize;
unsigned i, count;
DWORD rc;
DWORD rc = NO_ERROR;
PJ_ASSERT_RETURN(p_cnt && ifs, PJ_EINVAL);
@ -56,7 +122,8 @@ PJ_DEF(pj_status_t) pj_enum_ip_interface(unsigned *p_cnt,
/* Get IP address table */
tabSize = sizeof(ipTabBuff);
rc = GetIpAddrTable(pTab, &tabSize, FALSE);
rc = MyGetIpAddrTable(pTab, &tabSize, FALSE);
if (rc != NO_ERROR)
return PJ_RETURN_OS_ERROR(rc);
@ -91,7 +158,7 @@ PJ_DEF(pj_status_t) pj_enum_ip_route(unsigned *p_cnt,
MIB_IPFORWARDTABLE *prTab;
ULONG tabSize;
unsigned i, count;
DWORD rc;
DWORD rc = NO_ERROR;
PJ_ASSERT_RETURN(p_cnt && routes, PJ_EINVAL);
@ -100,13 +167,14 @@ PJ_DEF(pj_status_t) pj_enum_ip_route(unsigned *p_cnt,
/* First get IP address table */
tabSize = sizeof(ipTabBuff);
rc = GetIpAddrTable(pIpTab, &tabSize, FALSE);
rc = MyGetIpAddrTable(pIpTab, &tabSize, FALSE);
if (rc != NO_ERROR)
return PJ_RETURN_OS_ERROR(rc);
/* Next get IP route table */
tabSize = sizeof(rtabBuff);
rc = GetIpForwardTable(prTab, &tabSize, 1);
rc = MyGetIpForwardTable(prTab, &tabSize, 1);
if (rc != NO_ERROR)
return PJ_RETURN_OS_ERROR(rc);
@ -138,5 +206,3 @@ PJ_DEF(pj_status_t) pj_enum_ip_route(unsigned *p_cnt,
return PJ_SUCCESS;
}