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openslp
openslp.noconvenience.diff
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File openslp.noconvenience.diff of Package openslp
--- ./common/slp_auth.c.orig 2016-09-12 14:33:58.923718969 +0000 +++ ./common/slp_auth.c 2016-09-12 14:35:19.660448155 +0000 @@ -237,6 +237,7 @@ static int SLPAuthSignDigest(int spistrl curpos += spistrlen; /* sign the digest and put it in the authblock */ + memset(curpos, 0, signaturelen); if (SLPCryptoDSASign(key, digest, SLPAUTH_SHA1_DIGEST_SIZE, curpos, &signaturelen)) { --- ./common/slp_crypto.c.orig 2016-09-12 14:30:13.053476772 +0000 +++ ./common/slp_crypto.c 2016-09-12 14:31:32.443210397 +0000 @@ -153,6 +153,20 @@ int SLPCryptoDSASign(SLPCryptoDSAKey * k int SLPCryptoDSAVerify(SLPCryptoDSAKey * key, const unsigned char * digest, int digestlen, const unsigned char * signature, int signaturelen) { + /* newer openssl versions need the exact size. trim down. */ + if (signaturelen > 2 && *signature == 0x30) + { + int l = 0; + if (signature[1] < 128) + l = 2 + signature[1]; + else if (signature[1] == 129) + l = 3 + signature[2]; + else if (signature[1] == 130) + l = 4 + (signature[2] << 8 | signature[3]); + if (l && l < signaturelen) + signaturelen = l; + } + /* it does not look like the type param is used? */ /* broken DSA_verify() declaration */ return DSA_verify(0, digest, digestlen, (unsigned char *)signature, --- ./common/slp_v2message.c.orig 2016-09-12 10:51:36.284400063 +0000 +++ ./common/slp_v2message.c 2016-09-12 10:55:19.553648752 +0000 @@ -150,13 +150,6 @@ static int v2ParseUrlEntry(SLPBuffer buf } urlentry->opaquelen = buffer->curpos - urlentry->opaque; - /* Terminate the URL string for caller convenience - we're overwriting - * the first byte of the "# of URL auths" field, but it's okay because - * we've already read and stored it away. - */ - if(urlentry->url) - ((uint8_t *)urlentry->url)[urlentry->urllen] = 0; - return 0; } @@ -543,12 +536,6 @@ static int v2ParseAttrRply(SLPBuffer buf } } - /* Terminate the attr list for caller convenience - overwrites the - * first byte of the "# of AttrAuths" field, but we've processed it. - */ - if(attrrply->attrlist) - ((uint8_t *)attrrply->attrlist)[attrrply->attrlistlen] = 0; - return 0; } @@ -643,13 +630,6 @@ static int v2ParseDAAdvert(SLPBuffer buf } } - /* Terminate the URL string for caller convenience - we're overwriting - * the first byte of the "Length of <scope-list>" field, but it's okay - * because we've already read and stored it away. - */ - if(daadvert->url) - ((uint8_t *)daadvert->url)[daadvert->urllen] = 0; - return 0; } @@ -749,14 +729,6 @@ static int v2ParseSrvTypeRply(SLPBuffer if (buffer->curpos > buffer->end) return SLP_ERROR_PARSE_ERROR; - /* Terminate the service type list string for caller convenience - while - * it appears that we're writing one byte past the end of the buffer here, - * it's not so - message buffers are always allocated one byte larger than - * requested for just this reason. - */ - if(srvtyperply->srvtypelist) - ((uint8_t *)srvtyperply->srvtypelist)[srvtyperply->srvtypelistlen] = 0; - return 0; } @@ -825,13 +797,6 @@ static int v2ParseSAAdvert(SLPBuffer buf } } - /* Terminate the URL string for caller convenience - we're overwriting - * the first byte of the "Length of <scope-list>" field, but it's okay - * because we've already read and stored it away. - */ - if(saadvert->url) - ((uint8_t *)saadvert->url)[saadvert->urllen] = 0; - return 0; } --- ./libslp/libslp_findattrs.c.orig 2016-09-12 10:57:02.363303412 +0000 +++ ./libslp/libslp_findattrs.c 2016-09-12 10:58:41.416970996 +0000 @@ -98,6 +98,9 @@ static SLPBoolean ProcessAttrRplyCallbac return SLP_TRUE; /* Authentication failure. */ } #endif + /* TRICKY: null terminate the attrlist by setting the authcount to 0 */ + ((char*)(attrrply->attrlist))[attrrply->attrlistlen] = 0; + /* Call the user's callback function. */ result = handle->params.findattrs.callback(handle, attrrply->attrlist, (SLPError)(-attrrply->errorcode), --- ./libslp/libslp_findsrvs.c.orig 2016-09-12 10:57:07.995284521 +0000 +++ ./libslp/libslp_findsrvs.c 2016-09-12 11:26:08.220430148 +0000 @@ -227,6 +227,9 @@ static SLPBoolean ProcessSrvRplyCallback && SLPAuthVerifyUrl(handle->hspi, 1, &urlentry[i])) continue; /* Authentication failed, skip this URLEntry. */ #endif + /* TRICKY: null terminate the url by setting the authcount to 0 */ + ((char*)(urlentry[i].url))[urlentry[i].urllen] = 0; + result = CollateToSLPSrvURLCallback(handle, urlentry[i].url, (unsigned short)urlentry[i].lifetime, SLP_OK, peeraddr); if (result == SLP_FALSE) @@ -245,6 +248,9 @@ static SLPBoolean ProcessSrvRplyCallback return SLP_TRUE; } #endif + /* TRICKY: null terminate the url by setting the scope list length to 0 */ + ((char *)replymsg->body.daadvert.url)[replymsg->body.daadvert.urllen] = 0; + result = CollateToSLPSrvURLCallback(handle, replymsg->body.daadvert.url, SLP_LIFETIME_MAXIMUM, SLP_OK, peeraddr); @@ -260,6 +266,9 @@ static SLPBoolean ProcessSrvRplyCallback return SLP_TRUE; } #endif + /* TRICKY: null terminate the url by setting the scope list length to 0 */ + ((char *)replymsg->body.saadvert.url)[replymsg->body.saadvert.urllen] = 0; + result = CollateToSLPSrvURLCallback(handle, replymsg->body.saadvert.url, SLP_LIFETIME_MAXIMUM, SLP_OK, peeraddr); --- ./libslp/libslp_findsrvtypes.c.orig 2016-09-12 10:57:15.275260063 +0000 +++ ./libslp/libslp_findsrvtypes.c 2016-09-12 11:03:41.863964662 +0000 @@ -175,8 +175,13 @@ static SLPBoolean ProcessSrvTypeRplyCall { SLPSrvTypeRply * srvtyperply = &replymsg->body.srvtyperply; if (srvtyperply->srvtypelistlen) + { + /* TRICKY: null terminate the srvtypelist by setting the last byte 0 */ + ((char*)(srvtyperply->srvtypelist))[srvtyperply->srvtypelistlen] = 0; + result = CollateToSLPSrvTypeCallback((SLPHandle)handle, srvtyperply->srvtypelist, srvtyperply->errorcode * -1); + } } SLPMessageFree(replymsg); } --- ./libslp/libslp_knownda.c.orig 2016-09-12 10:57:21.083240529 +0000 +++ ./libslp/libslp_knownda.c 2016-09-12 11:07:26.178207707 +0000 @@ -335,6 +335,8 @@ static SLPBoolean KnownDADiscoveryCallba { SLPParsedSrvUrl * srvurl; + /* TRICKY: NULL terminate the DA url */ + ((char*)(replymsg->body.daadvert.url))[replymsg->body.daadvert.urllen] = 0; if (SLPParseSrvUrl(replymsg->body.daadvert.urllen, replymsg->body.daadvert.url, &srvurl) == 0) { @@ -993,14 +995,22 @@ void KnownDAProcessSrvRqst(SLPHandleInfo { SLPBoolean cb_result; SLPDatabaseEntry * entry = SLPDatabaseEnum(dh); + char tmp; if (!entry) break; + /* TRICKY temporary null termination of DA url */ + tmp = entry->msg->body.daadvert.url[entry->msg->body.daadvert.urllen]; + ((char*)(entry->msg->body.daadvert.url))[entry->msg->body.daadvert.urllen] = 0; + /* Call the SrvURLCallback. */ cb_result = handle->params.findsrvs.callback(handle, entry->msg->body.daadvert.url, SLP_LIFETIME_MAXIMUM, SLP_OK, handle->params.findsrvs.cookie); + /* TRICKY: undo temporary null termination of DA url */ + ((char*)(entry->msg->body.daadvert.url))[entry->msg->body.daadvert.urllen] = tmp; + /* Does the caller want more? */ if (cb_result == SLP_FALSE) break; --- ./slpd/slpd_regfile.c.orig 2016-09-12 11:12:02.353273706 +0000 +++ ./slpd/slpd_regfile.c 2016-09-12 14:29:17.611662818 +0000 @@ -657,7 +657,7 @@ int SLPDRegFileWriteSrvReg(FILE * fd, SL if (fd) { - fprintf(fd, "%s,%s,%d\n", msg->body.srvreg.urlentry.url, msg->header.langtag, msg->body.srvreg.urlentry.lifetime); + fprintf(fd, "%.*s,%s,%d\n", (int)(msg->body.srvreg.urlentry.urllen), msg->body.srvreg.urlentry.url, msg->header.langtag, msg->body.srvreg.urlentry.lifetime); if (msg->body.srvreg.source == SLP_REG_SOURCE_PULL_PEER_DA) fprintf(fd, "slp-source=pulled-from-da-%s\n", SLPNetSockAddrStorageToString(&msg->peer, addr_str, sizeof(addr_str))); else if (msg->body.srvreg.source == SLP_REG_SOURCE_LOCAL)
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