miniupnpc/miniupnpc.c: simplified function GetUPNPUrls()
This commit is contained in:
Thomas Bernard
parent
55fc3e4c3c
commit
edfd211276
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@ -1,6 +1,9 @@
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$Id: Changelog.txt,v 1.198 2014/09/11 14:13:31 nanard Exp $
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$Id: Changelog.txt,v 1.199 2014/11/05 06:06:37 nanard Exp $
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miniUPnP client Changelog.
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2014/11/05:
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simplified function GetUPNPUrls()
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2014/09/11:
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use remoteHost arg of DeletePortMapping
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@ -1,4 +1,4 @@
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/* $Id: miniupnpc.c,v 1.116 2014/01/31 14:09:03 nanard Exp $ */
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/* $Id: miniupnpc.c,v 1.120 2014/11/05 06:06:38 nanard Exp $ */
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/* Project : miniupnp
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* Web : http://miniupnp.free.fr/
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* Author : Thomas BERNARD
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@ -732,27 +732,76 @@ MINIUPNP_LIBSPEC void freeUPNPDevlist(struct UPNPDev * devlist)
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}
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}
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static void
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url_cpy_or_cat(char * dst, const char * src, int n)
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static char *
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build_absolute_url(const char * baseurl, const char * descURL,
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const char * url, unsigned int scope_id)
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{
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if( (src[0] == 'h')
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&&(src[1] == 't')
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&&(src[2] == 't')
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&&(src[3] == 'p')
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&&(src[4] == ':')
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&&(src[5] == '/')
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&&(src[6] == '/'))
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{
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strncpy(dst, src, n);
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int l, n;
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char * s;
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const char * base;
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char * p;
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#ifdef IF_NAMESIZE
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char ifname[IF_NAMESIZE];
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#else
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char scope_str[8];
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#endif
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if( (url[0] == 'h')
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&&(url[1] == 't')
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&&(url[2] == 't')
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&&(url[3] == 'p')
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&&(url[4] == ':')
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&&(url[5] == '/')
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&&(url[6] == '/'))
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return strdup(url);
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base = (baseurl[0] == '\0') ? descURL : baseurl;
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n = strlen(base);
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if(n > 7) {
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p = strchr(base + 7, '/');
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if(p)
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n = p - base;
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}
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else
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{
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int l = strlen(dst);
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if(src[0] != '/')
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dst[l++] = '/';
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if(l<=n)
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strncpy(dst + l, src, n - l);
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l = n + strlen(url) + 1;
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if(url[0] != '/')
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l++;
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if(scope_id != 0) {
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#ifdef IF_NAMESIZE
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if(if_indextoname(scope_id, ifname)) {
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l += 3 + strlen(ifname); /* 3 == strlen(%25) */
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}
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#else
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/* under windows, scope is numerical */
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l += 3 + snprintf(scope_str, sizeof(scope_str), "%u", scope_id);
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#endif
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}
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s = malloc(l);
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if(s == NULL) return NULL;
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memcpy(s, base, n);
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if(scope_id != 0) {
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s[n] = '\0';
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if(0 == memcmp(s, "http://[fe80:", 13)) {
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/* this is a linklocal IPv6 address */
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p = strchr(s, ']');
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if(p) {
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/* insert %25<scope> into URL */
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#ifdef IF_NAMESIZE
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memmove(p + 3 + strlen(ifname), p, strlen(p) + 1);
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memcpy(p, "%25", 3);
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memcpy(p + 3, ifname, strlen(ifname));
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n += 3 + strlen(ifname);
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#else
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memmove(p + 3 + strlen(scope_str), p, strlen(p) + 1);
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memcpy(p, "%25", 3);
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memcpy(p + 3, scope_str, strlen(scope_str));
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n += 3 + strlen(scope_str);
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#endif
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}
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}
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}
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if(url[0] != '/')
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s[n++] = '/';
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memcpy(s + n, url, l - n);
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return s;
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}
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/* Prepare the Urls for usage...
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@ -761,89 +810,24 @@ MINIUPNP_LIBSPEC void
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GetUPNPUrls(struct UPNPUrls * urls, struct IGDdatas * data,
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const char * descURL, unsigned int scope_id)
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{
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char * p;
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int n1, n2, n3, n4;
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#ifdef IF_NAMESIZE
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char ifname[IF_NAMESIZE];
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#else
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char scope_str[8];
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#endif
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n1 = strlen(data->urlbase);
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if(n1==0)
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n1 = strlen(descURL);
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if(scope_id != 0) {
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#ifdef IF_NAMESIZE
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if(if_indextoname(scope_id, ifname)) {
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n1 += 3 + strlen(ifname); /* 3 == strlen(%25) */
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}
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#else
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/* under windows, scope is numerical */
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snprintf(scope_str, sizeof(scope_str), "%u", scope_id);
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#endif
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}
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n1 += 2; /* 1 byte more for Null terminator, 1 byte for '/' if needed */
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n2 = n1; n3 = n1; n4 = n1;
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n1 += strlen(data->first.scpdurl);
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n2 += strlen(data->first.controlurl);
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n3 += strlen(data->CIF.controlurl);
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n4 += strlen(data->IPv6FC.controlurl);
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/* allocate memory to store URLs */
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urls->ipcondescURL = (char *)malloc(n1);
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urls->controlURL = (char *)malloc(n2);
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urls->controlURL_CIF = (char *)malloc(n3);
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urls->controlURL_6FC = (char *)malloc(n4);
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/* strdup descURL */
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urls->rootdescURL = strdup(descURL);
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/* get description of WANIPConnection */
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if(data->urlbase[0] != '\0')
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strncpy(urls->ipcondescURL, data->urlbase, n1);
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else
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strncpy(urls->ipcondescURL, descURL, n1);
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p = strchr(urls->ipcondescURL+7, '/');
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if(p) p[0] = '\0';
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if(scope_id != 0) {
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if(0 == memcmp(urls->ipcondescURL, "http://[fe80:", 13)) {
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/* this is a linklocal IPv6 address */
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p = strchr(urls->ipcondescURL, ']');
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if(p) {
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/* insert %25<scope> into URL */
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#ifdef IF_NAMESIZE
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memmove(p + 3 + strlen(ifname), p, strlen(p) + 1);
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memcpy(p, "%25", 3);
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memcpy(p + 3, ifname, strlen(ifname));
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#else
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memmove(p + 3 + strlen(scope_str), p, strlen(p) + 1);
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memcpy(p, "%25", 3);
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memcpy(p + 3, scope_str, strlen(scope_str));
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#endif
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}
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}
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}
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strncpy(urls->controlURL, urls->ipcondescURL, n2);
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strncpy(urls->controlURL_CIF, urls->ipcondescURL, n3);
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strncpy(urls->controlURL_6FC, urls->ipcondescURL, n4);
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url_cpy_or_cat(urls->ipcondescURL, data->first.scpdurl, n1);
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url_cpy_or_cat(urls->controlURL, data->first.controlurl, n2);
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url_cpy_or_cat(urls->controlURL_CIF, data->CIF.controlurl, n3);
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url_cpy_or_cat(urls->controlURL_6FC, data->IPv6FC.controlurl, n4);
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urls->ipcondescURL = build_absolute_url(data->urlbase, descURL,
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data->first.scpdurl, scope_id);
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urls->controlURL = build_absolute_url(data->urlbase, descURL,
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data->first.controlurl, scope_id);
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urls->controlURL_CIF = build_absolute_url(data->urlbase, descURL,
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data->CIF.controlurl, scope_id);
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urls->controlURL_6FC = build_absolute_url(data->urlbase, descURL,
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data->IPv6FC.controlurl, scope_id);
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#ifdef DEBUG
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printf("urls->ipcondescURL='%s' %u n1=%d\n", urls->ipcondescURL,
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(unsigned)strlen(urls->ipcondescURL), n1);
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printf("urls->controlURL='%s' %u n2=%d\n", urls->controlURL,
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(unsigned)strlen(urls->controlURL), n2);
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printf("urls->controlURL_CIF='%s' %u n3=%d\n", urls->controlURL_CIF,
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(unsigned)strlen(urls->controlURL_CIF), n3);
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printf("urls->controlURL_6FC='%s' %u n4=%d\n", urls->controlURL_6FC,
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(unsigned)strlen(urls->controlURL_6FC), n4);
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printf("urls->ipcondescURL='%s'\n", urls->ipcondescURL);
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printf("urls->controlURL='%s'\n", urls->controlURL);
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printf("urls->controlURL_CIF='%s'\n", urls->controlURL_CIF);
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printf("urls->controlURL_6FC='%s'\n", urls->controlURL_6FC);
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#endif
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}
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