diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/bio/b_sock.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/bio/b_sock.c | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/bio/b_sock.c b/openssl-1.1.0h/crypto/bio/b_sock.c new file mode 100644 index 0000000..97dcc70 --- /dev/null +++ b/openssl-1.1.0h/crypto/bio/b_sock.c @@ -0,0 +1,378 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include "bio_lcl.h" +#if defined(NETWARE_CLIB) +# include <sys/ioctl.h> +NETDB_DEFINE_CONTEXT +#endif +#ifndef OPENSSL_NO_SOCK +# define SOCKET_PROTOCOL IPPROTO_TCP +# ifdef SO_MAXCONN +# define MAX_LISTEN SO_MAXCONN +# elif defined(SOMAXCONN) +# define MAX_LISTEN SOMAXCONN +# else +# define MAX_LISTEN 32 +# endif +# if defined(OPENSSL_SYS_WINDOWS) +static int wsa_init_done = 0; +# endif + +# if OPENSSL_API_COMPAT < 0x10100000L +int BIO_get_host_ip(const char *str, unsigned char *ip) +{ + BIO_ADDRINFO *res = NULL; + int ret = 0; + + if (BIO_sock_init() != 1) + return 0; /* don't generate another error code here */ + + if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) { + size_t l; + + if (BIO_ADDRINFO_family(res) != AF_INET) { + BIOerr(BIO_F_BIO_GET_HOST_IP, + BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); + } else { + BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l); + /* Because only AF_INET addresses will reach this far, + we can assert that l should be 4 */ + OPENSSL_assert(l == 4); + + BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l); + ret = 1; + } + BIO_ADDRINFO_free(res); + } else { + ERR_add_error_data(2, "host=", str); + } + + return ret; +} + +int BIO_get_port(const char *str, unsigned short *port_ptr) +{ + BIO_ADDRINFO *res = NULL; + int ret = 0; + + if (str == NULL) { + BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED); + return (0); + } + + if (BIO_sock_init() != 1) + return 0; /* don't generate another error code here */ + + if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) { + if (BIO_ADDRINFO_family(res) != AF_INET) { + BIOerr(BIO_F_BIO_GET_PORT, + BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET); + } else { + *port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res))); + ret = 1; + } + BIO_ADDRINFO_free(res); + } else { + ERR_add_error_data(2, "host=", str); + } + + return ret; +} +# endif + +int BIO_sock_error(int sock) +{ + int j = 0, i; + socklen_t size = sizeof(j); + + /* + * Note: under Windows the third parameter is of type (char *) whereas + * under other systems it is (void *) if you don't have a cast it will + * choke the compiler: if you do have a cast then you can either go for + * (char *) or (void *). + */ + i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size); + if (i < 0) + return (get_last_socket_error()); + else + return (j); +} + +# if OPENSSL_API_COMPAT < 0x10100000L +struct hostent *BIO_gethostbyname(const char *name) +{ + /* + * Caching gethostbyname() results forever is wrong, so we have to let + * the true gethostbyname() worry about this + */ +# if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) + return gethostbyname((char *)name); +# else + return gethostbyname(name); +# endif +} +# endif + +int BIO_sock_init(void) +{ +# ifdef OPENSSL_SYS_WINDOWS + static struct WSAData wsa_state; + + if (!wsa_init_done) { + int err; + + wsa_init_done = 1; + memset(&wsa_state, 0, sizeof(wsa_state)); + /* + * Not making wsa_state available to the rest of the code is formally + * wrong. But the structures we use are [believed to be] invariable + * among Winsock DLLs, while API availability is [expected to be] + * probed at run-time with DSO_global_lookup. + */ + if (WSAStartup(0x0202, &wsa_state) != 0) { + err = WSAGetLastError(); + SYSerr(SYS_F_WSASTARTUP, err); + BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP); + return (-1); + } + } +# endif /* OPENSSL_SYS_WINDOWS */ +# ifdef WATT32 + extern int _watt_do_exit; + _watt_do_exit = 0; /* don't make sock_init() call exit() */ + if (sock_init()) + return (-1); +# endif + + return (1); +} + +void bio_sock_cleanup_int(void) +{ +# ifdef OPENSSL_SYS_WINDOWS + if (wsa_init_done) { + wsa_init_done = 0; + WSACleanup(); + } +# endif +} + +int BIO_socket_ioctl(int fd, long type, void *arg) +{ + int i; + +# ifdef __DJGPP__ + i = ioctlsocket(fd, type, (char *)arg); +# else +# if defined(OPENSSL_SYS_VMS) + /*- + * 2011-02-18 SMS. + * VMS ioctl() can't tolerate a 64-bit "void *arg", but we + * observe that all the consumers pass in an "unsigned long *", + * so we arrange a local copy with a short pointer, and use + * that, instead. + */ +# if __INITIAL_POINTER_SIZE == 64 +# define ARG arg_32p +# pragma pointer_size save +# pragma pointer_size 32 + unsigned long arg_32; + unsigned long *arg_32p; +# pragma pointer_size restore + arg_32p = &arg_32; + arg_32 = *((unsigned long *)arg); +# else /* __INITIAL_POINTER_SIZE == 64 */ +# define ARG arg +# endif /* __INITIAL_POINTER_SIZE == 64 [else] */ +# else /* defined(OPENSSL_SYS_VMS) */ +# define ARG arg +# endif /* defined(OPENSSL_SYS_VMS) [else] */ + + i = ioctlsocket(fd, type, ARG); +# endif /* __DJGPP__ */ + if (i < 0) + SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error()); + return (i); +} + +# if OPENSSL_API_COMPAT < 0x10100000L +int BIO_get_accept_socket(char *host, int bind_mode) +{ + int s = INVALID_SOCKET; + char *h = NULL, *p = NULL; + BIO_ADDRINFO *res = NULL; + + if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV)) + return INVALID_SOCKET; + + if (BIO_sock_init() != 1) + return INVALID_SOCKET; + + if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0) + goto err; + + if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res), + BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) { + s = INVALID_SOCKET; + goto err; + } + + if (!BIO_listen(s, BIO_ADDRINFO_address(res), + bind_mode ? BIO_SOCK_REUSEADDR : 0)) { + BIO_closesocket(s); + s = INVALID_SOCKET; + } + + err: + BIO_ADDRINFO_free(res); + OPENSSL_free(h); + OPENSSL_free(p); + + return s; +} + +int BIO_accept(int sock, char **ip_port) +{ + BIO_ADDR res; + int ret = -1; + + ret = BIO_accept_ex(sock, &res, 0); + if (ret == (int)INVALID_SOCKET) { + if (BIO_sock_should_retry(ret)) { + ret = -2; + goto end; + } + SYSerr(SYS_F_ACCEPT, get_last_socket_error()); + BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR); + goto end; + } + + if (ip_port != NULL) { + char *host = BIO_ADDR_hostname_string(&res, 1); + char *port = BIO_ADDR_service_string(&res, 1); + if (host != NULL && port != NULL) + *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2); + else + *ip_port = NULL; + + if (*ip_port == NULL) { + BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); + BIO_closesocket(ret); + ret = (int)INVALID_SOCKET; + } else { + strcpy(*ip_port, host); + strcat(*ip_port, ":"); + strcat(*ip_port, port); + } + OPENSSL_free(host); + OPENSSL_free(port); + } + + end: + return ret; +} +# endif + +int BIO_set_tcp_ndelay(int s, int on) +{ + int ret = 0; +# if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) + int opt; + +# ifdef SOL_TCP + opt = SOL_TCP; +# else +# ifdef IPPROTO_TCP + opt = IPPROTO_TCP; +# endif +# endif + + ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on)); +# endif + return (ret == 0); +} + +int BIO_socket_nbio(int s, int mode) +{ + int ret = -1; + int l; + + l = mode; +# ifdef FIONBIO + l = mode; + + ret = BIO_socket_ioctl(s, FIONBIO, &l); +# elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) || defined(FNDELAY)) + /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */ + + l = fcntl(s, F_GETFL, 0); + if (l == -1) { + SYSerr(SYS_F_FCNTL, get_last_rtl_error()); + ret = -1; + } else { +# if defined(O_NONBLOCK) + l &= ~O_NONBLOCK; +# else + l &= ~FNDELAY; /* BSD4.x */ +# endif + if (mode) { +# if defined(O_NONBLOCK) + l |= O_NONBLOCK; +# else + l |= FNDELAY; /* BSD4.x */ +# endif + } + ret = fcntl(s, F_SETFL, l); + + if (ret < 0) { + SYSerr(SYS_F_FCNTL, get_last_rtl_error()); + } + } +# else + /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */ + BIOerr(BIO_F_BIO_SOCKET_NBIO, ERR_R_PASSED_INVALID_ARGUMENT); +# endif + + return (ret == 0); +} + +int BIO_sock_info(int sock, + enum BIO_sock_info_type type, union BIO_sock_info_u *info) +{ + switch (type) { + case BIO_SOCK_INFO_ADDRESS: + { + socklen_t addr_len; + int ret = 0; + addr_len = sizeof(*info->addr); + ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr), + &addr_len); + if (ret == -1) { + SYSerr(SYS_F_GETSOCKNAME, get_last_socket_error()); + BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR); + return 0; + } + if ((size_t)addr_len > sizeof(*info->addr)) { + BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS); + return 0; + } + } + break; + default: + BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE); + return 0; + } + return 1; +} + +#endif |