OpenCoverage

b_sock2.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/bio/b_sock2.c
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1/*-
2 * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.-
3 *-
4 * Licensed under the OpenSSL license (the "License"). You may not use-
5 * this file except in compliance with the License. You can obtain a copy-
6 * in the file LICENSE in the source distribution or at-
7 * https://www.openssl.org/source/license.html-
8 */-
9-
10#include <stdio.h>-
11#include <stdlib.h>-
12#include <errno.h>-
13-
14#include "bio_lcl.h"-
15-
16#include <openssl/err.h>-
17-
18#ifndef OPENSSL_NO_SOCK-
19# ifdef SO_MAXCONN-
20# define MAX_LISTEN SO_MAXCONN-
21# elif defined(SOMAXCONN)-
22# define MAX_LISTEN SOMAXCONN-
23# else-
24# define MAX_LISTEN 32-
25# endif-
26-
27/*--
28 * BIO_socket - create a socket-
29 * @domain: the socket domain (AF_INET, AF_INET6, AF_UNIX, ...)-
30 * @socktype: the socket type (SOCK_STEAM, SOCK_DGRAM)-
31 * @protocol: the protocol to use (IPPROTO_TCP, IPPROTO_UDP)-
32 * @options: BIO socket options (currently unused)-
33 *-
34 * Creates a socket. This should be called before calling any-
35 * of BIO_connect and BIO_listen.-
36 *-
37 * Returns the file descriptor on success or INVALID_SOCKET on failure. On-
38 * failure errno is set, and a status is added to the OpenSSL error stack.-
39 */-
40int BIO_socket(int domain, int socktype, int protocol, int options)-
41{-
42 int sock = -1;-
43-
44 if (BIO_sock_init() != 1)
BIO_sock_init() != 1Description
TRUEnever evaluated
FALSEevaluated 371 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-371
45 return INVALID_SOCKET;
never executed: return (-1);
0
46-
47 sock = socket(domain, socktype, protocol);-
48 if (sock == -1) {
sock == -1Description
TRUEnever evaluated
FALSEevaluated 371 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-371
49 SYSerr(SYS_F_SOCKET, get_last_socket_error());-
50 BIOerr(BIO_F_BIO_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET);-
51 return INVALID_SOCKET;
never executed: return (-1);
0
52 }-
53-
54 return sock;
executed 371 times by 1 test: return sock;
Executed by:
  • libcrypto.so.1.1
371
55}-
56-
57/*--
58 * BIO_connect - connect to an address-
59 * @sock: the socket to connect with-
60 * @addr: the address to connect to-
61 * @options: BIO socket options-
62 *-
63 * Connects to the address using the given socket and options.-
64 *-
65 * Options can be a combination of the following:-
66 * - BIO_SOCK_KEEPALIVE: enable regularly sending keep-alive messages.-
67 * - BIO_SOCK_NONBLOCK: Make the socket non-blocking.-
68 * - BIO_SOCK_NODELAY: don't delay small messages.-
69 *-
70 * options holds BIO socket options that can be used-
71 * You should call this for every address returned by BIO_lookup-
72 * until the connection is successful.-
73 *-
74 * Returns 1 on success or 0 on failure. On failure errno is set-
75 * and an error status is added to the OpenSSL error stack.-
76 */-
77int BIO_connect(int sock, const BIO_ADDR *addr, int options)-
78{-
79 const int on = 1;-
80-
81 if (sock == -1) {
sock == -1Description
TRUEnever evaluated
FALSEevaluated 193 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-193
82 BIOerr(BIO_F_BIO_CONNECT, BIO_R_INVALID_SOCKET);-
83 return 0;
never executed: return 0;
0
84 }-
85-
86 if (!BIO_socket_nbio(sock, (options & BIO_SOCK_NONBLOCK) != 0))
!BIO_socket_nb... & 0x08) != 0)Description
TRUEnever evaluated
FALSEevaluated 193 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-193
87 return 0;
never executed: return 0;
0
88-
89 if (options & BIO_SOCK_KEEPALIVE) {
options & 0x04Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 191 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2-191
90 if (setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-2
91 (const void *)&on, sizeof(on)) != 0) {
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-2
92 SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());-
93 BIOerr(BIO_F_BIO_CONNECT, BIO_R_UNABLE_TO_KEEPALIVE);-
94 return 0;
never executed: return 0;
0
95 }-
96 }
executed 2 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
2
97-
98 if (options & BIO_SOCK_NODELAY) {
options & 0x10Description
TRUEnever evaluated
FALSEevaluated 193 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-193
99 if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
100 (const void *)&on, sizeof(on)) != 0) {
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
101 SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());-
102 BIOerr(BIO_F_BIO_CONNECT, BIO_R_UNABLE_TO_NODELAY);-
103 return 0;
never executed: return 0;
0
104 }-
105 }
never executed: end of block
0
106-
107 if (connect(sock, BIO_ADDR_sockaddr(addr),
connect(sock, ...e(addr)) == -1Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 191 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2-191
108 BIO_ADDR_sockaddr_size(addr)) == -1) {
connect(sock, ...e(addr)) == -1Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 191 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2-191
109 if (!BIO_sock_should_retry(-1)) {
!BIO_sock_should_retry(-1)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-2
110 SYSerr(SYS_F_CONNECT, get_last_socket_error());-
111 BIOerr(BIO_F_BIO_CONNECT, BIO_R_CONNECT_ERROR);-
112 }
never executed: end of block
0
113 return 0;
executed 2 times by 1 test: return 0;
Executed by:
  • libcrypto.so.1.1
2
114 }-
115 return 1;
executed 191 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
191
116}-
117-
118/*--
119 * BIO_bind - bind socket to address-
120 * @sock: the socket to set-
121 * @addr: local address to bind to-
122 * @options: BIO socket options-
123 *-
124 * Binds to the address using the given socket and options.-
125 *-
126 * Options can be a combination of the following:-
127 * - BIO_SOCK_REUSEADDR: Try to reuse the address and port combination-
128 * for a recently closed port.-
129 *-
130 * When restarting the program it could be that the port is still in use. If-
131 * you set to BIO_SOCK_REUSEADDR option it will try to reuse the port anyway.-
132 * It's recommended that you use this.-
133 */-
134int BIO_bind(int sock, const BIO_ADDR *addr, int options)-
135{-
136# ifndef OPENSSL_SYS_WINDOWS-
137 int on = 1;-
138# endif-
139-
140 if (sock == -1) {
sock == -1Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
141 BIOerr(BIO_F_BIO_BIND, BIO_R_INVALID_SOCKET);-
142 return 0;
never executed: return 0;
0
143 }-
144-
145# ifndef OPENSSL_SYS_WINDOWS-
146 /*-
147 * SO_REUSEADDR has different behavior on Windows than on-
148 * other operating systems, don't set it there.-
149 */-
150 if (options & BIO_SOCK_REUSEADDR) {
options & 0x01Description
TRUEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-178
151 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
152 (const void *)&on, sizeof(on)) != 0) {
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
153 SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());-
154 BIOerr(BIO_F_BIO_BIND, BIO_R_UNABLE_TO_REUSEADDR);-
155 return 0;
never executed: return 0;
0
156 }-
157 }
executed 178 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
178
158# endif-
159-
160 if (bind(sock, BIO_ADDR_sockaddr(addr), BIO_ADDR_sockaddr_size(addr)) != 0) {
bind(sock, BIO...ze(addr)) != 0Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
161 SYSerr(SYS_F_BIND, get_last_socket_error());-
162 BIOerr(BIO_F_BIO_BIND, BIO_R_UNABLE_TO_BIND_SOCKET);-
163 return 0;
never executed: return 0;
0
164 }-
165-
166 return 1;
executed 178 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
178
167}-
168-
169/*--
170 * BIO_listen - Creates a listen socket-
171 * @sock: the socket to listen with-
172 * @addr: local address to bind to-
173 * @options: BIO socket options-
174 *-
175 * Binds to the address using the given socket and options, then-
176 * starts listening for incoming connections.-
177 *-
178 * Options can be a combination of the following:-
179 * - BIO_SOCK_KEEPALIVE: enable regularly sending keep-alive messages.-
180 * - BIO_SOCK_NONBLOCK: Make the socket non-blocking.-
181 * - BIO_SOCK_NODELAY: don't delay small messages.-
182 * - BIO_SOCK_REUSEADDR: Try to reuse the address and port combination-
183 * for a recently closed port.-
184 * - BIO_SOCK_V6_ONLY: When creating an IPv6 socket, make it listen only-
185 * for IPv6 addresses and not IPv4 addresses mapped to IPv6.-
186 *-
187 * It's recommended that you set up both an IPv6 and IPv4 listen socket, and-
188 * then check both for new clients that connect to it. You want to set up-
189 * the socket as non-blocking in that case since else it could hang.-
190 *-
191 * Not all operating systems support IPv4 addresses on an IPv6 socket, and for-
192 * others it's an option. If you pass the BIO_LISTEN_V6_ONLY it will try to-
193 * create the IPv6 sockets to only listen for IPv6 connection.-
194 *-
195 * It could be that the first BIO_listen() call will listen to all the IPv6-
196 * and IPv4 addresses and that then trying to bind to the IPv4 address will-
197 * fail. We can't tell the difference between already listening ourself to-
198 * it and someone else listening to it when failing and errno is EADDRINUSE, so-
199 * it's recommended to not give an error in that case if the first call was-
200 * successful.-
201 *-
202 * When restarting the program it could be that the port is still in use. If-
203 * you set to BIO_SOCK_REUSEADDR option it will try to reuse the port anyway.-
204 * It's recommended that you use this.-
205 */-
206int BIO_listen(int sock, const BIO_ADDR *addr, int options)-
207{-
208 int on = 1;-
209 int socktype;-
210 socklen_t socktype_len = sizeof(socktype);-
211-
212 if (sock == -1) {
sock == -1Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
213 BIOerr(BIO_F_BIO_LISTEN, BIO_R_INVALID_SOCKET);-
214 return 0;
never executed: return 0;
0
215 }-
216-
217 if (getsockopt(sock, SOL_SOCKET, SO_TYPE,
getsockopt(soc...type_len) != 0Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
218 (void *)&socktype, &socktype_len) != 0
getsockopt(soc...type_len) != 0Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
219 || socktype_len != sizeof(socktype)) {
socktype_len !...zeof(socktype)Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
220 SYSerr(SYS_F_GETSOCKOPT, get_last_socket_error());-
221 BIOerr(BIO_F_BIO_LISTEN, BIO_R_GETTING_SOCKTYPE);-
222 return 0;
never executed: return 0;
0
223 }-
224-
225 if (!BIO_socket_nbio(sock, (options & BIO_SOCK_NONBLOCK) != 0))
!BIO_socket_nb... & 0x08) != 0)Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
226 return 0;
never executed: return 0;
0
227-
228 if (options & BIO_SOCK_KEEPALIVE) {
options & 0x04Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
229 if (setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
230 (const void *)&on, sizeof(on)) != 0) {
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
231 SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());-
232 BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_KEEPALIVE);-
233 return 0;
never executed: return 0;
0
234 }-
235 }
never executed: end of block
0
236-
237 if (options & BIO_SOCK_NODELAY) {
options & 0x10Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
238 if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
239 (const void *)&on, sizeof(on)) != 0) {
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
240 SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());-
241 BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_NODELAY);-
242 return 0;
never executed: return 0;
0
243 }-
244 }
never executed: end of block
0
245-
246# ifdef IPV6_V6ONLY-
247 if (BIO_ADDR_family(addr) == AF_INET6) {
BIO_ADDR_family(addr) == 10Description
TRUEevaluated 177 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.1.1
1-177
248 /*-
249 * Note: Windows default of IPV6_V6ONLY is ON, and Linux is OFF.-
250 * Therefore we always have to use setsockopt here.-
251 */-
252 on = options & BIO_SOCK_V6_ONLY ? 1 : 0;
options & 0x02Description
TRUEevaluated 176 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.1.1
1-176
253 if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEevaluated 177 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-177
254 (const void *)&on, sizeof(on)) != 0) {
setsockopt(soc...zeof(on)) != 0Description
TRUEnever evaluated
FALSEevaluated 177 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-177
255 SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());-
256 BIOerr(BIO_F_BIO_LISTEN, BIO_R_LISTEN_V6_ONLY);-
257 return 0;
never executed: return 0;
0
258 }-
259 }
executed 177 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
177
260# endif-
261-
262 if (!BIO_bind(sock, addr, options))
!BIO_bind(sock, addr, options)Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
263 return 0;
never executed: return 0;
0
264-
265 if (socktype != SOCK_DGRAM && listen(sock, MAX_LISTEN) == -1) {
socktype != SOCK_DGRAMDescription
TRUEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
listen(sock, 128 ) == -1Description
TRUEnever evaluated
FALSEevaluated 178 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-178
266 SYSerr(SYS_F_LISTEN, get_last_socket_error());-
267 BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_LISTEN_SOCKET);-
268 return 0;
never executed: return 0;
0
269 }-
270-
271 return 1;
executed 178 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
178
272}-
273-
274/*--
275 * BIO_accept_ex - Accept new incoming connections-
276 * @sock: the listening socket-
277 * @addr: the BIO_ADDR to store the peer address in-
278 * @options: BIO socket options, applied on the accepted socket.-
279 *-
280 */-
281int BIO_accept_ex(int accept_sock, BIO_ADDR *addr_, int options)-
282{-
283 socklen_t len;-
284 int accepted_sock;-
285 BIO_ADDR locaddr;-
286 BIO_ADDR *addr = addr_ == NULL ? &locaddr : addr_;
addr_ == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 193 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-193
287-
288 len = sizeof(*addr);-
289 accepted_sock = accept(accept_sock,-
290 BIO_ADDR_sockaddr_noconst(addr), &len);-
291 if (accepted_sock == -1) {
accepted_sock == -1Description
TRUEnever evaluated
FALSEevaluated 193 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-193
292 if (!BIO_sock_should_retry(accepted_sock)) {
!BIO_sock_shou...accepted_sock)Description
TRUEnever evaluated
FALSEnever evaluated
0
293 SYSerr(SYS_F_ACCEPT, get_last_socket_error());-
294 BIOerr(BIO_F_BIO_ACCEPT_EX, BIO_R_ACCEPT_ERROR);-
295 }
never executed: end of block
0
296 return INVALID_SOCKET;
never executed: return (-1);
0
297 }-
298-
299 if (!BIO_socket_nbio(accepted_sock, (options & BIO_SOCK_NONBLOCK) != 0)) {
!BIO_socket_nb... & 0x08) != 0)Description
TRUEnever evaluated
FALSEevaluated 193 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-193
300 closesocket(accepted_sock);-
301 return INVALID_SOCKET;
never executed: return (-1);
0
302 }-
303-
304 return accepted_sock;
executed 193 times by 1 test: return accepted_sock;
Executed by:
  • libcrypto.so.1.1
193
305}-
306-
307/*--
308 * BIO_closesocket - Close a socket-
309 * @sock: the socket to close-
310 */-
311int BIO_closesocket(int sock)-
312{-
313 if (closesocket(sock) < 0)
close(sock) < 0Description
TRUEnever evaluated
FALSEevaluated 562 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-562
314 return 0;
never executed: return 0;
0
315 return 1;
executed 562 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
562
316}-
317#endif-
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