changing source ip for socket connections
"Zak Thompson" <[email protected]> Fri, 3 Oct 2003 14:07:28 -0400
| Newsgroups | gmane.comp.lib.libesmtp |
|---|---|
| Message-ID | <000701c389d9$34e642c0$6701a8c0@GOTARDLAPTOP> |
This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C389B7.ADD4A2C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hey, I'm trying to adjust the source so when I set a new localhost say domain xxa.com it will use the corresponding IP on the server. Example Server has 3 IP's on it and those ip's reverse to 3 domains. If I set xxa.com to send a letter it connects to the smtp server using its IP.. not the base server ip. My old application use to use the following code. struct sockaddr_in client; int bcode=0; client.sin_family = AF_INET; client.sin_addr.s_addr = inet_addr(global_ip); client.sin_port = 0; bbcode = bind(sock, (struct sockaddr *) &client,sizeof(client)); to bind the source IP. I tried making some changes in protocol.c and looked in getaddrinfo.c but no luck. Any help would be appricated. Thanks. _____ Zak Thompson [email protected] ------=_NextPart_000_0008_01C389B7.ADD4A2C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"> <meta name=3DProgId content=3DWord.Document> <meta name=3DGenerator content=3D"Microsoft Word 10"> <meta name=3DOriginator content=3D"Microsoft Word 10"> <link rel=3DFile-List href=3D"cid:[email protected]"> <link rel=3DEdit-Time-Data href=3D"cid:[email protected]"> <!--[if !mso]> <style> v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} </style> <![endif]--><!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:DoNotRelyOnCSS/> </o:OfficeDocumentSettings> </xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:SpellingState>Clean</w:SpellingState> <w:GrammarState>Clean</w:GrammarState> <w:DocumentKind>DocumentEmail</w:DocumentKind> <w:EnvelopeVis/> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--> <style> <!-- /* Font Definitions */ @font-face {font-family:Tahoma; 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mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} --> </style> <!--[if gte mso 10]> <style> /* Style Definitions */=20 table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} </style> <![endif]--> </head> <body lang=3DEN-US link=3Dblue vlink=3Dpurple = style=3D'tab-interval:.5in'> <div class=3DSection1> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>Hey,<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><span style=3D'mso-spacerun:yes'> = </span>I’m trying to adjust the source so when I set a new <span = class=3DSpellE>localhost</span> say domain xxa.com it will use the corresponding IP on the server.<span style=3D'mso-spacerun:yes'> = </span>Example<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>Server has 3 IP’s on it and those <span = class=3DSpellE>ip’s</span> reverse to 3 domains.<span style=3D'mso-spacerun:yes'> </span>If I = set xxa.com to send a letter it connects to the <span = class=3DSpellE>smtp</span> server using its IP<span class=3DGramE>..</span> <span = class=3DGramE>not</span> the base server <span class=3DSpellE>ip</span>.<span = style=3D'mso-spacerun:yes'> </span><o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>My old application use to use the following = code.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><span class=3DSpellE><span class=3DGramE><font = size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'>struct</span></font></span><= /span><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'> <span class=3DSpellE>sockaddr_in</span> client;<o:p></o:p></span></font></p> <p class=3DMsoNormal><span class=3DSpellE><span class=3DGramE><font = size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'>int</span></font></span></sp= an><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'> <span class=3DSpellE>bcode</span>=3D0;<o:p></o:p></span></font></p> <p class=3DMsoNormal><span class=3DSpellE><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>client.sin_family</span></fo= nt></span><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'> =3D = AF_INET;<o:p></o:p></span></font></p> <p class=3DMsoNormal><span class=3DSpellE><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>client.sin_addr.s_addr</span= ></font></span><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'> =3D <span class=3DSpellE>inet_<span class=3DGramE>addr</span></span><span = class=3DGramE>(</span><span class=3DSpellE>global_ip</span>);<o:p></o:p></span></font></p> <p class=3DMsoNormal><span class=3DSpellE><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>client.sin_port</span></font= ></span><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'> =3D = 0;<o:p></o:p></span></font></p> <p class=3DMsoNormal><span class=3DSpellE><span class=3DGramE><font = size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'>bbcode</span></font></span><= /span><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'> =3D bind(sock, (<span class=3DSpellE>struct</span> <span = class=3DSpellE>sockaddr</span> *) &<span = class=3DSpellE>client,sizeof</span>(client));<o:p></o:p></span></font></p= > <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><span class=3DGramE><font size=3D2 = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>to</span></font></span><font= size=3D2 face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'> bind = the source IP.<span style=3D'mso-spacerun:yes'> </span>I tried making some = changes in <span class=3DSpellE><span class=3DGramE>protocol.c</span></span><span = class=3DGramE> <span style=3D'mso-spacerun:yes'> </span>and</span> looked in <span = class=3DSpellE>getaddrinfo.c</span> but no luck. <span style=3D'mso-spacerun:yes'> </span>Any help = would be <span class=3DSpellE>appricated</span>.<span style=3D'mso-spacerun:yes'> </span>Thanks.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <div> <div class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=3D'font-size:12.0pt;mso-no-proof:yes'> <hr size=3D1 width=3D220 style=3D'width:165.0pt' noshade = color=3D"#1d59d2" align=3Dleft> </span></font></div> </div> <p class=3DMsoNormal><font size=3D2 color=3D"#1d59d2" = face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma;color:#1D59D2;mso-no-proof:y= es'>Zak Thompson<br> <st1:place><st1:PlaceName>[email protected]</span></font><font= size=3D2 face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p= > <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span = style=3D'font-size: 12.0pt'><o:p> </o:p></span></font></p> </div> </body> </html> ------=_NextPart_000_0008_01C389B7.ADD4A2C0--