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example_httpsrv_tls_cert_auth_8c-example.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Sagui library: example_httpsrv_tls_cert_auth.c</title>
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<div class="headertitle"><div class="title">example_httpsrv_tls_cert_auth.c</div></div>
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<div class="contents">
<p>Simple client-side certificate authentication using GnuTLS.</p>
<div class="fragment"><div class="line"><span class="comment">/* _</span></div>
<div class="line"><span class="comment"> * ___ __ _ __ _ _ _(_)</span></div>
<div class="line"><span class="comment"> * / __|/ _` |/ _` | | | | |</span></div>
<div class="line"><span class="comment"> * \__ \ (_| | (_| | |_| | |</span></div>
<div class="line"><span class="comment"> * |___/\__,_|\__, |\__,_|_|</span></div>
<div class="line"><span class="comment"> * |___/</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Cross-platform library which helps to develop web servers or frameworks.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Copyright (C) 2016-2019 Silvio Clecio <silvioprog@gmail.com></span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Sagui library is free software; you can redistribute it and/or</span></div>
<div class="line"><span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Sagui library is distributed in the hope that it will be useful,</span></div>
<div class="line"><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><span class="comment"> * License along with Sagui library; if not, write to the Free Software</span></div>
<div class="line"><span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><span class="preprocessor">#include <stdint.h></span></div>
<div class="line"><span class="preprocessor">#include <errno.h></span></div>
<div class="line"><span class="preprocessor">#include <gnutls/gnutls.h></span></div>
<div class="line"><span class="preprocessor">#include <gnutls/x509.h></span></div>
<div class="line"><span class="preprocessor">#include <<a class="code" href="sagui_8h.html">sagui.h</a>></span></div>
<div class="line"> </div>
<div class="line"><span class="comment">/* NOTE: Error checking has been omitted to make it clear. */</span></div>
<div class="line"> </div>
<div class="line"><span class="comment">/*</span></div>
<div class="line"><span class="comment"> * Simple example using TLS client authentication.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Client example using cURL:</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * curl -k --cert certs/client.p12 --pass abc123 --cert-type p12 https://localhost:<PORT></span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Certificate generation:</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * ## CA</span></div>
<div class="line"><span class="comment"> * certtool --generate-privkey --outfile ca.key</span></div>
<div class="line"><span class="comment"> * echo 'cn = GnuTLS test CA' > ca.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'ca' >> ca.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'cert_signing_key' >> ca.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'expiration_days = 3650' >> ca.tmpl</span></div>
<div class="line"><span class="comment"> * certtool --generate-self-signed --load-privkey ca.key --template ca.tmpl --outfile ca.pem</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * ## Server</span></div>
<div class="line"><span class="comment"> * certtool --generate-privkey --outfile server.key</span></div>
<div class="line"><span class="comment"> * echo 'organization = GnuTLS test server' > server.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'cn = test.gnutls.org' >> server.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'tls_www_server' >> server.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'expiration_days = 3650' >> server.tmpl</span></div>
<div class="line"><span class="comment"> * certtool --generate-certificate --load-ca-privkey ca.key --load-ca-certificate ca.pem --load-privkey server.key --template server.tmpl --outfile server.pem</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * ## Client</span></div>
<div class="line"><span class="comment"> * certtool --generate-privkey --outfile client.key</span></div>
<div class="line"><span class="comment"> * echo 'cn = GnuTLS test client' > client.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'tls_www_client' >> client.tmpl</span></div>
<div class="line"><span class="comment"> * echo 'expiration_days = 3650' >> client.tmpl</span></div>
<div class="line"><span class="comment"> * certtool --generate-certificate --load-ca-certificate ca.pem --load-ca-privkey ca.key --load-privkey client.key --template client.tmpl --outfile client.pem</span></div>
<div class="line"><span class="comment"> * certtool --to-p12 --p12-name=MyKey --password=abc123 --load-ca-certificate ca.pem --load-privkey client.key --load-certificate client.pem --outder --outfile client.p12</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#define KEY_FILE SG_EXAMPLES_CERTS_DIR "/server.key"</span></div>
<div class="line"><span class="preprocessor">#define CERT_FILE SG_EXAMPLES_CERTS_DIR "/server.pem"</span></div>
<div class="line"><span class="preprocessor">#define CA_FILE SG_EXAMPLES_CERTS_DIR "/ca.pem"</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#define ERR_SIZE 256</span></div>
<div class="line"><span class="preprocessor">#define PAGE_FMT \</span></div>
<div class="line"><span class="preprocessor"> "<html><head><title>Hello world</title></head><body><font "</span> \</div>
<div class="line"> "color=\"%s\">%s</font></font></body></html>"</div>
<div class="line"><span class="preprocessor">#define SECRET_MSG "Secret"</span></div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> concat(<span class="keywordtype">char</span> *s1, ...) {</div>
<div class="line"> va_list ap;</div>
<div class="line"> <span class="keyword">const</span> <span class="keywordtype">char</span> *s;</div>
<div class="line"> va_start(ap, s1);</div>
<div class="line"> <span class="keywordflow">while</span> ((s = va_arg(ap, <span class="keyword">const</span> <span class="keywordtype">char</span> *)))</div>
<div class="line"> strcat(s1, s);</div>
<div class="line"> va_end(ap);</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">bool</span> sess_verify_cert(gnutls_session_t tls_session,</div>
<div class="line"> <span class="keyword">const</span> <span class="keywordtype">char</span> *line_break, <span class="keywordtype">char</span> *err) {</div>
<div class="line"> gnutls_x509_crt_t cert = NULL;</div>
<div class="line"> <span class="keyword">const</span> gnutls_datum_t *certs;</div>
<div class="line"> <span class="keywordtype">size_t</span> len;</div>
<div class="line"> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> status, certs_size;</div>
<div class="line"> <span class="keywordtype">int</span> ret;</div>
<div class="line"> <span class="keywordflow">if</span> (!tls_session || !line_break || !err) {</div>
<div class="line"> <a id="a0" name="a0"></a><a class="code hl_function" href="group__sg__utils.html#ga8f77f6063b04e3a24b3efc3703be72a1">sg_strerror</a>(EINVAL, err, ERR_SIZE);</div>
<div class="line"> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> ((ret = gnutls_certificate_verify_peers2(tls_session, &status)) !=</div>
<div class="line"> GNUTLS_E_SUCCESS) {</div>
<div class="line"> concat(err, <span class="stringliteral">"Error verifying peers: "</span>, gnutls_strerror(ret), line_break,</div>
<div class="line"> NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> (status & GNUTLS_CERT_INVALID)</div>
<div class="line"> concat(err, <span class="stringliteral">"The certificate is not trusted"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">if</span> (status & GNUTLS_CERT_SIGNER_NOT_FOUND)</div>
<div class="line"> concat(err, <span class="stringliteral">"The certificate has not got a known issuer"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">if</span> (status & GNUTLS_CERT_REVOKED)</div>
<div class="line"> concat(err, <span class="stringliteral">"The certificate has been revoked"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">if</span> (gnutls_certificate_type_get(tls_session) != GNUTLS_CRT_X509) {</div>
<div class="line"> concat(err, <span class="stringliteral">"The certificate type is not X.509"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> ((ret = gnutls_x509_crt_init(&cert)) != GNUTLS_E_SUCCESS) {</div>
<div class="line"> concat(err,</div>
<div class="line"> <span class="stringliteral">"Error in the certificate initialization: "</span>, gnutls_strerror(ret),</div>
<div class="line"> line_break, NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> (!(certs = gnutls_certificate_get_peers(tls_session, &certs_size))) {</div>
<div class="line"> concat(err, <span class="stringliteral">"No certificate was found"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> ((ret = gnutls_x509_crt_import(cert, &certs[0], GNUTLS_X509_FMT_DER)) !=</div>
<div class="line"> GNUTLS_E_SUCCESS) {</div>
<div class="line"> concat(err, <span class="stringliteral">"Error parsing certificate: "</span>, gnutls_strerror(ret), line_break,</div>
<div class="line"> NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> (gnutls_x509_crt_get_expiration_time(cert) < time(NULL)) {</div>
<div class="line"> concat(err, <span class="stringliteral">"The certificate has expired"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> (gnutls_x509_crt_get_activation_time(cert) > time(NULL)) {</div>
<div class="line"> concat(err, <span class="stringliteral">"The certificate has not been activated yet"</span>, line_break, NULL);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line">error:</div>
<div class="line"> len = strlen(err);</div>
<div class="line"> err[len - strlen(<span class="stringliteral">"<br>"</span>)] = <span class="charliteral">'\0'</span>;</div>
<div class="line"> gnutls_x509_crt_deinit(cert);</div>
<div class="line"> <span class="keywordflow">return</span> len == 0;</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> req_cb(__SG_UNUSED <span class="keywordtype">void</span> *cls, <span class="keyword">struct</span> <a id="_a1" name="_a1"></a><a class="code hl_struct" href="structsg__httpreq.html">sg_httpreq</a> *req,</div>
<div class="line"> <span class="keyword">struct</span> <a id="_a2" name="_a2"></a><a class="code hl_struct" href="structsg__httpres.html">sg_httpres</a> *res) {</div>
<div class="line"> <span class="keywordtype">char</span> msg[ERR_SIZE];</div>
<div class="line"> <span class="keywordtype">char</span> *color, *page;</div>
<div class="line"> <span class="keywordtype">size_t</span> page_size;</div>
<div class="line"> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> status;</div>
<div class="line"> <span class="keywordflow">if</span> (sess_verify_cert(<a id="a3" name="a3"></a><a class="code hl_function" href="group__sg__httpsrv.html#ga66ab1966a5c0628be0523e13c5a97878">sg_httpreq_tls_session</a>(req), <span class="stringliteral">"<br>"</span>, msg)) {</div>
<div class="line"> strcpy(msg, SECRET_MSG);</div>
<div class="line"> color = <span class="stringliteral">"green"</span>;</div>
<div class="line"> status = 200;</div>
<div class="line"> } <span class="keywordflow">else</span> {</div>
<div class="line"> color = <span class="stringliteral">"red"</span>;</div>
<div class="line"> status = 500;</div>
<div class="line"> }</div>
<div class="line"> page_size = (size_t) snprintf(NULL, 0, PAGE_FMT, color, msg);</div>
<div class="line"> page = <a id="a4" name="a4"></a><a class="code hl_function" href="group__sg__utils.html#ga7354f1a6cfaea0a128810cac509a3d80">sg_alloc</a>(page_size);</div>
<div class="line"> snprintf(page, page_size, PAGE_FMT, color, msg);</div>
<div class="line"> <a id="a5" name="a5"></a><a class="code hl_define" href="group__sg__httpsrv.html#gae64c67ed9caee0189cf4fd669a869255">sg_httpres_send</a>(res, page, <span class="stringliteral">"text/html; charset=utf-8"</span>, status);</div>
<div class="line"> <a id="a6" name="a6"></a><a class="code hl_function" href="group__sg__utils.html#gae01910b94d1aa7d1a6fe44feaa3f111a">sg_free</a>(page);</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span> *argv[]) {</div>
<div class="line"> <span class="keyword">struct </span><a id="_a7" name="_a7"></a><a class="code hl_struct" href="structsg__httpsrv.html">sg_httpsrv</a> *srv;</div>
<div class="line"> gnutls_datum_t key_file, cert_file, ca_file;</div>
<div class="line"> <span class="keywordtype">int</span> ret, status;</div>
<div class="line"> uint16_t port;</div>
<div class="line"> <span class="keywordflow">if</span> (argc != 2) {</div>
<div class="line"> printf(<span class="stringliteral">"%s <PORT>\n"</span>, argv[0]);</div>
<div class="line"> <span class="keywordflow">return</span> EXIT_FAILURE;</div>
<div class="line"> }</div>
<div class="line"> port = strtol(argv[1], NULL, 10);</div>
<div class="line"> status = EXIT_FAILURE;</div>
<div class="line"> srv = <a id="a8" name="a8"></a><a class="code hl_function" href="group__sg__httpsrv.html#ga56b59921f35e8fac91c48ddb0669b5d1">sg_httpsrv_new</a>(req_cb, NULL);</div>
<div class="line"> memset(&key_file, 0, <span class="keyword">sizeof</span>(gnutls_datum_t));</div>
<div class="line"> memset(&cert_file, 0, <span class="keyword">sizeof</span>(gnutls_datum_t));</div>
<div class="line"> memset(&ca_file, 0, <span class="keyword">sizeof</span>(gnutls_datum_t));</div>
<div class="line"> <span class="keywordflow">if</span> ((ret = gnutls_load_file(KEY_FILE, &key_file)) != GNUTLS_E_SUCCESS) {</div>
<div class="line"> fprintf(stderr, <span class="stringliteral">"Error loading the private key \"%s\": %s\n"</span>, KEY_FILE,</div>
<div class="line"> gnutls_strerror(ret));</div>
<div class="line"> fflush(stdout);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> ((ret = gnutls_load_file(CERT_FILE, &cert_file)) != GNUTLS_E_SUCCESS) {</div>
<div class="line"> fprintf(stderr, <span class="stringliteral">"Error loading the certificate \"%s\": %s\n"</span>, CERT_FILE,</div>
<div class="line"> gnutls_strerror(ret));</div>
<div class="line"> fflush(stdout);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> ((ret = gnutls_load_file(CA_FILE, &ca_file)) != GNUTLS_E_SUCCESS) {</div>
<div class="line"> fprintf(stderr, <span class="stringliteral">"Error loading the CA \"%s\": %s\n"</span>, CA_FILE,</div>
<div class="line"> gnutls_strerror(ret));</div>
<div class="line"> fflush(stdout);</div>
<div class="line"> <span class="keywordflow">goto</span> error;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> (<a id="a9" name="a9"></a><a class="code hl_function" href="group__sg__httpsrv.html#ga1edeaed3fccc4edf0fee5a0b71aa6e45">sg_httpsrv_tls_listen2</a>(srv, (<span class="keyword">const</span> <span class="keywordtype">char</span> *) key_file.data, NULL,</div>
<div class="line"> (<span class="keyword">const</span> <span class="keywordtype">char</span> *) cert_file.data,</div>
<div class="line"> (<span class="keyword">const</span> <span class="keywordtype">char</span> *) ca_file.data, NULL, port, <span class="keyword">false</span>)) {</div>
<div class="line"> status = EXIT_SUCCESS;</div>
<div class="line"> fprintf(stdout, <span class="stringliteral">"Server running at https://localhost:%d\n"</span>,</div>
<div class="line"> <a id="a10" name="a10"></a><a class="code hl_function" href="group__sg__httpsrv.html#gafdc2bab56e952bd8395f2ebfd91469f5">sg_httpsrv_port</a>(srv));</div>
<div class="line"> fflush(stdout);</div>
<div class="line"> getchar();</div>
<div class="line"> }</div>
<div class="line">error:</div>
<div class="line"> <a id="a11" name="a11"></a><a class="code hl_function" href="group__sg__httpsrv.html#gac377679c831c0b428ee80b2f63174bf8">sg_httpsrv_free</a>(srv);</div>
<div class="line"> <span class="keywordflow">if</span> (key_file.size > 0)</div>
<div class="line"> gnutls_free(key_file.data);</div>
<div class="line"> <span class="keywordflow">if</span> (cert_file.size > 0)</div>
<div class="line"> gnutls_free(cert_file.data);</div>
<div class="line"> <span class="keywordflow">if</span> (ca_file.size > 0)</div>
<div class="line"> gnutls_free(ca_file.data);</div>
<div class="line"> <span class="keywordflow">return</span> status;</div>
<div class="line">}</div>
<div class="ttc" id="agroup__sg__httpsrv_html_ga1edeaed3fccc4edf0fee5a0b71aa6e45"><div class="ttname"><a href="group__sg__httpsrv.html#ga1edeaed3fccc4edf0fee5a0b71aa6e45">sg_httpsrv_tls_listen2</a></div><div class="ttdeci">bool sg_httpsrv_tls_listen2(struct sg_httpsrv *srv, const char *key, const char *pwd, const char *cert, const char *trust, const char *dhparams, uint16_t port, bool threaded)</div></div>
<div class="ttc" id="agroup__sg__httpsrv_html_ga56b59921f35e8fac91c48ddb0669b5d1"><div class="ttname"><a href="group__sg__httpsrv.html#ga56b59921f35e8fac91c48ddb0669b5d1">sg_httpsrv_new</a></div><div class="ttdeci">struct sg_httpsrv * sg_httpsrv_new(sg_httpreq_cb cb, void *cls) __attribute__((malloc))</div></div>
<div class="ttc" id="agroup__sg__httpsrv_html_ga66ab1966a5c0628be0523e13c5a97878"><div class="ttname"><a href="group__sg__httpsrv.html#ga66ab1966a5c0628be0523e13c5a97878">sg_httpreq_tls_session</a></div><div class="ttdeci">void * sg_httpreq_tls_session(struct sg_httpreq *req)</div></div>
<div class="ttc" id="agroup__sg__httpsrv_html_gac377679c831c0b428ee80b2f63174bf8"><div class="ttname"><a href="group__sg__httpsrv.html#gac377679c831c0b428ee80b2f63174bf8">sg_httpsrv_free</a></div><div class="ttdeci">void sg_httpsrv_free(struct sg_httpsrv *srv)</div></div>
<div class="ttc" id="agroup__sg__httpsrv_html_gae64c67ed9caee0189cf4fd669a869255"><div class="ttname"><a href="group__sg__httpsrv.html#gae64c67ed9caee0189cf4fd669a869255">sg_httpres_send</a></div><div class="ttdeci">#define sg_httpres_send(res, val, content_type, status)</div><div class="ttdef"><b>Definition</b> sagui.h:1032</div></div>
<div class="ttc" id="agroup__sg__httpsrv_html_gafdc2bab56e952bd8395f2ebfd91469f5"><div class="ttname"><a href="group__sg__httpsrv.html#gafdc2bab56e952bd8395f2ebfd91469f5">sg_httpsrv_port</a></div><div class="ttdeci">uint16_t sg_httpsrv_port(struct sg_httpsrv *srv)</div></div>
<div class="ttc" id="agroup__sg__utils_html_ga7354f1a6cfaea0a128810cac509a3d80"><div class="ttname"><a href="group__sg__utils.html#ga7354f1a6cfaea0a128810cac509a3d80">sg_alloc</a></div><div class="ttdeci">void * sg_alloc(size_t size) __attribute__((malloc))</div></div>
<div class="ttc" id="agroup__sg__utils_html_ga8f77f6063b04e3a24b3efc3703be72a1"><div class="ttname"><a href="group__sg__utils.html#ga8f77f6063b04e3a24b3efc3703be72a1">sg_strerror</a></div><div class="ttdeci">char * sg_strerror(int errnum, char *errmsg, size_t errlen)</div></div>
<div class="ttc" id="agroup__sg__utils_html_gae01910b94d1aa7d1a6fe44feaa3f111a"><div class="ttname"><a href="group__sg__utils.html#gae01910b94d1aa7d1a6fe44feaa3f111a">sg_free</a></div><div class="ttdeci">void sg_free(void *ptr)</div></div>
<div class="ttc" id="asagui_8h_html"><div class="ttname"><a href="sagui_8h.html">sagui.h</a></div></div>
<div class="ttc" id="astructsg__httpreq_html"><div class="ttname"><a href="structsg__httpreq.html">sg_httpreq</a></div></div>
<div class="ttc" id="astructsg__httpres_html"><div class="ttname"><a href="structsg__httpres.html">sg_httpres</a></div></div>
<div class="ttc" id="astructsg__httpsrv_html"><div class="ttname"><a href="structsg__httpsrv.html">sg_httpsrv</a></div></div>
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