diff options
Diffstat (limited to 'crypto/bio/b_sock.c')
| -rw-r--r-- | crypto/bio/b_sock.c | 1698 |
1 files changed, 840 insertions, 858 deletions
diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c index 1cee0ae94d..7469f07f25 100644 --- a/crypto/bio/b_sock.c +++ b/crypto/bio/b_sock.c @@ -5,21 +5,21 @@ * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +34,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +49,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -63,30 +63,25 @@ #include "cryptlib.h" #include <openssl/bio.h> #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) -#include <netdb.h> -#if defined(NETWARE_CLIB) -#include <sys/ioctl.h> +# include <netdb.h> +# if defined(NETWARE_CLIB) +# include <sys/ioctl.h> NETDB_DEFINE_CONTEXT +# endif #endif -#endif - #ifndef OPENSSL_NO_SOCK - -#include <openssl/dso.h> - -#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) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) -static int wsa_init_done=0; -#endif +# include <openssl/dso.h> +# 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) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) +static int wsa_init_done = 0; +# endif /* * WSAAPI specifier is required to make indirect calls to run-time @@ -95,882 +90,869 @@ static int wsa_init_done=0; * uses non-C calling convention, __stdcall vs. __cdecl, on x86 * Windows. On non-WinSock platforms WSAAPI needs to be void. */ -#ifndef WSAAPI -#define WSAAPI -#endif - -#if 0 -static unsigned long BIO_ghbn_hits=0L; -static unsigned long BIO_ghbn_miss=0L; - -#define GHBN_NUM 4 -static struct ghbn_cache_st - { - char name[129]; - struct hostent *ent; - unsigned long order; - } ghbn_cache[GHBN_NUM]; -#endif - -static int get_ip(const char *str,unsigned char *ip); -#if 0 +# ifndef WSAAPI +# define WSAAPI +# endif + +# if 0 +static unsigned long BIO_ghbn_hits = 0L; +static unsigned long BIO_ghbn_miss = 0L; + +# define GHBN_NUM 4 +static struct ghbn_cache_st { + char name[129]; + struct hostent *ent; + unsigned long order; +} ghbn_cache[GHBN_NUM]; +# endif + +static int get_ip(const char *str, unsigned char *ip); +# if 0 static void ghbn_free(struct hostent *a); static struct hostent *ghbn_dup(struct hostent *a); -#endif +# endif int BIO_get_host_ip(const char *str, unsigned char *ip) - { - int i; - int err = 1; - int locked = 0; - struct hostent *he; - - i=get_ip(str,ip); - if (i < 0) - { - BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); - goto err; - } - - /* At this point, we have something that is most probably correct - in some way, so let's init the socket. */ - if (BIO_sock_init() != 1) - return 0; /* don't generate another error code here */ - - /* If the string actually contained an IP address, we need not do - anything more */ - if (i > 0) return(1); - - /* do a gethostbyname */ - CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); - locked = 1; - he=BIO_gethostbyname(str); - if (he == NULL) - { - BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); - goto err; - } - - /* cast to short because of win16 winsock definition */ - if ((short)he->h_addrtype != AF_INET) - { - BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); - goto err; - } - for (i=0; i<4; i++) - ip[i]=he->h_addr_list[0][i]; - err = 0; +{ + int i; + int err = 1; + int locked = 0; + struct hostent *he; + + i = get_ip(str, ip); + if (i < 0) { + BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_INVALID_IP_ADDRESS); + goto err; + } + + /* + * At this point, we have something that is most probably correct in some + * way, so let's init the socket. + */ + if (BIO_sock_init() != 1) + return 0; /* don't generate another error code here */ + + /* + * If the string actually contained an IP address, we need not do + * anything more + */ + if (i > 0) + return (1); + + /* do a gethostbyname */ + CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); + locked = 1; + he = BIO_gethostbyname(str); + if (he == NULL) { + BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_BAD_HOSTNAME_LOOKUP); + goto err; + } + + /* cast to short because of win16 winsock definition */ + if ((short)he->h_addrtype != AF_INET) { + BIOerr(BIO_F_BIO_GET_HOST_IP, + BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); + goto err; + } + for (i = 0; i < 4; i++) + ip[i] = he->h_addr_list[0][i]; + err = 0; err: - if (locked) - CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); - if (err) - { - ERR_add_error_data(2,"host=",str); - return 0; - } - else - return 1; - } + if (locked) + CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); + if (err) { + ERR_add_error_data(2, "host=", str); + return 0; + } else + return 1; +} int BIO_get_port(const char *str, unsigned short *port_ptr) - { - int i; - struct servent *s; - - if (str == NULL) - { - BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); - return(0); - } - i=atoi(str); - if (i != 0) - *port_ptr=(unsigned short)i; - else - { - CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); - /* Note: under VMS with SOCKETSHR, it seems like the first - * parameter is 'char *', instead of 'const char *' - */ -#ifndef CONST_STRICT - s=getservbyname((char *)str,"tcp"); -#else - s=getservbyname(str,"tcp"); -#endif - if(s != NULL) - *port_ptr=ntohs((unsigned short)s->s_port); - CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); - if(s == NULL) - { - if (strcmp(str,"http") == 0) - *port_ptr=80; - else if (strcmp(str,"telnet") == 0) - *port_ptr=23; - else if (strcmp(str,"socks") == 0) - *port_ptr=1080; - else if (strcmp(str,"https") == 0) - *port_ptr=443; - else if (strcmp(str,"ssl") == 0) - *port_ptr=443; - else if (strcmp(str,"ftp") == 0) - *port_ptr=21; - else if (strcmp(str,"gopher") == 0) - *port_ptr=70; -#if 0 - else if (strcmp(str,"wais") == 0) - *port_ptr=21; -#endif - else - { - SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); - ERR_add_error_data(3,"service='",str,"'"); - return(0); - } - } - } - return(1); - } +{ + int i; + struct servent *s; + + if (str == NULL) { + BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED); + return (0); + } + i = atoi(str); + if (i != 0) + *port_ptr = (unsigned short)i; + else { + CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); + /* + * Note: under VMS with SOCKETSHR, it seems like the first parameter + * is 'char *', instead of 'const char *' + */ +# ifndef CONST_STRICT + s = getservbyname((char *)str, "tcp"); +# else + s = getservbyname(str, "tcp"); +# endif + if (s != NULL) + *port_ptr = ntohs((unsigned short)s->s_port); + CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); + if (s == NULL) { + if (strcmp(str, "http") == 0) + *port_ptr = 80; + else if (strcmp(str, "telnet") == 0) + *port_ptr = 23; + else if (strcmp(str, "socks") == 0) + *port_ptr = 1080; + else if (strcmp(str, "https") == 0) + *port_ptr = 443; + else if (strcmp(str, "ssl") == 0) + *port_ptr = 443; + else if (strcmp(str, "ftp") == 0) + *port_ptr = 21; + else if (strcmp(str, "gopher") == 0) + *port_ptr = 70; +# if 0 + else if (strcmp(str, "wais") == 0) + *port_ptr = 21; +# endif + else { + SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error()); + ERR_add_error_data(3, "service='", str, "'"); + return (0); + } + } + } + return (1); +} int BIO_sock_error(int sock) - { - int j,i; - int size; - -#if defined(OPENSSL_SYS_BEOS_R5) - return 0; -#endif - - size=sizeof(int); - /* 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,(void *)&size); - if (i < 0) - return(1); - else - return(j); - } - -#if 0 +{ + int j, i; + int size; + +# if defined(OPENSSL_SYS_BEOS_R5) + return 0; +# endif + + size = sizeof(int); + /* + * 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, (void *)&size); + if (i < 0) + return (1); + else + return (j); +} + +# if 0 long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) - { - int i; - char **p; - - switch (cmd) - { - case BIO_GHBN_CTRL_HITS: - return(BIO_ghbn_hits); - /* break; */ - case BIO_GHBN_CTRL_MISSES: - return(BIO_ghbn_miss); - /* break; */ - case BIO_GHBN_CTRL_CACHE_SIZE: - return(GHBN_NUM); - /* break; */ - case BIO_GHBN_CTRL_GET_ENTRY: - if ((iarg >= 0) && (iarg <GHBN_NUM) && - (ghbn_cache[iarg].order > 0)) - { - p=(char **)parg; - if (p == NULL) return(0); - *p=ghbn_cache[iarg].name; - ghbn_cache[iarg].name[128]='\0'; - return(1); - } - return(0); - /* break; */ - case BIO_GHBN_CTRL_FLUSH: - for (i=0; i<GHBN_NUM; i++) - ghbn_cache[i].order=0; - break; - default: - return(0); - } - return(1); - } -#endif - -#if 0 +{ + int i; + char **p; + + switch (cmd) { + case BIO_GHBN_CTRL_HITS: + return (BIO_ghbn_hits); + /* break; */ + case BIO_GHBN_CTRL_MISSES: + return (BIO_ghbn_miss); + /* break; */ + case BIO_GHBN_CTRL_CACHE_SIZE: + return (GHBN_NUM); + /* break; */ + case BIO_GHBN_CTRL_GET_ENTRY: + if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) { + p = (char **)parg; + if (p == NULL) + return (0); + *p = ghbn_cache[iarg].name; + ghbn_cache[iarg].name[128] = '\0'; + return (1); + } + return (0); + /* break; */ + case BIO_GHBN_CTRL_FLUSH: + for (i = 0; i < GHBN_NUM; i++) + ghbn_cache[i].order = 0; + break; + default: + return (0); + } + return (1); +} +# endif + +# if 0 static struct hostent *ghbn_dup(struct hostent *a) - { - struct hostent *ret; - int i,j; - - MemCheck_off(); - ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); - if (ret == NULL) return(NULL); - memset(ret,0,sizeof(struct hostent)); - - for (i=0; a->h_aliases[i] != NULL; i++) - ; - i++; - ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *)); - if (ret->h_aliases == NULL) - goto err; - memset(ret->h_aliases, 0, i*sizeof(char *)); - - for (i=0; a->h_addr_list[i] != NULL; i++) - ; - i++; - ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *)); - if (ret->h_addr_list == NULL) - goto err; - memset(ret->h_addr_list, 0, i*sizeof(char *)); - - j=strlen(a->h_name)+1; - if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err; - memcpy((char *)ret->h_name,a->h_name,j); - for (i=0; a->h_aliases[i] != NULL; i++) - { - j=strlen(a->h_aliases[i])+1; - if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err; - memcpy(ret->h_aliases[i],a->h_aliases[i],j); - } - ret->h_length=a->h_length; - ret->h_addrtype=a->h_addrtype; - for (i=0; a->h_addr_list[i] != NULL; i++) - { - if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL) - goto err; - memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); - } - if (0) - { -err: - if (ret != NULL) - ghbn_free(ret); - ret=NULL; - } - MemCheck_on(); - return(ret); - } +{ + struct hostent *ret; + int i, j; + + MemCheck_off(); + ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); + if (ret == NULL) + return (NULL); + memset(ret, 0, sizeof(struct hostent)); + + for (i = 0; a->h_aliases[i] != NULL; i++) ; + i++; + ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *)); + if (ret->h_aliases == NULL) + goto err; + memset(ret->h_aliases, 0, i * sizeof(char *)); + + for (i = 0; a->h_addr_list[i] != NULL; i++) ; + i++; + ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *)); + if (ret->h_addr_list == NULL) + goto err; + memset(ret->h_addr_list, 0, i * sizeof(char *)); + + j = strlen(a->h_name) + 1; + if ((ret->h_name = OPENSSL_malloc(j)) == NULL) + goto err; + memcpy((char *)ret->h_name, a->h_name, j); + for (i = 0; a->h_aliases[i] != NULL; i++) { + j = strlen(a->h_aliases[i]) + 1; + if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL) + goto err; + memcpy(ret->h_aliases[i], a->h_aliases[i], j); + } + ret->h_length = a->h_length; + ret->h_addrtype = a->h_addrtype; + for (i = 0; a->h_addr_list[i] != NULL; i++) { + if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL) + goto err; + memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length); + } + if (0) { + err: + if (ret != NULL) + ghbn_free(ret); + ret = NULL; + } + MemCheck_on(); + return (ret); +} static void ghbn_free(struct hostent *a) - { - int i; - - if(a == NULL) - return; - - if (a->h_aliases != NULL) - { - for (i=0; a->h_aliases[i] != NULL; i++) - OPENSSL_free(a->h_aliases[i]); - OPENSSL_free(a->h_aliases); - } - if (a->h_addr_list != NULL) - { - for (i=0; a->h_addr_list[i] != NULL; i++) - OPENSSL_free(a->h_addr_list[i]); - OPENSSL_free(a->h_addr_list); - } - if (a->h_name != NULL) OPENSSL_free(a->h_name); - OPENSSL_free(a); - } - -#endif +{ + int i; + + if (a == NULL) + return; + + if (a->h_aliases != NULL) { + for (i = 0; a->h_aliases[i] != NULL; i++) + OPENSSL_free(a->h_aliases[i]); + OPENSSL_free(a->h_aliases); + } + if (a->h_addr_list != NULL) { + for (i = 0; a->h_addr_list[i] != NULL; i++) + OPENSSL_free(a->h_addr_list[i]); + OPENSSL_free(a->h_addr_list); + } + if (a->h_name != NULL) + OPENSSL_free(a->h_name); + OPENSSL_free(a); +} + +# endif struct hostent *BIO_gethostbyname(const char *name) - { -#if 1 - /* 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 -#else - struct hostent *ret; - int i,lowi=0,j; - unsigned long low= (unsigned long)-1; - +{ +# if 1 + /* + * 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 +# else + struct hostent *ret; + int i, lowi = 0, j; + unsigned long low = (unsigned long)-1; # if 0 - /* It doesn't make sense to use locking here: The function interface - * is not thread-safe, because threads can never be sure when - * some other thread destroys the data they were given a pointer to. - */ - CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); + /* + * It doesn't make sense to use locking here: The function interface is + * not thread-safe, because threads can never be sure when some other + * thread destroys the data they were given a pointer to. + */ + CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); # endif - j=strlen(name); - if (j < 128) - { - for (i=0; i<GHBN_NUM; i++) - { - if (low > ghbn_cache[i].order) - { - low=ghbn_cache[i].order; - lowi=i; - } - if (ghbn_cache[i].order > 0) - { - if (strncmp(name,ghbn_cache[i].name,128) == 0) - break; - } - } - } - else - i=GHBN_NUM; - - if (i == GHBN_NUM) /* no hit*/ - { - BIO_ghbn_miss++; - /* Note: under VMS with SOCKETSHR, it seems like the first - * parameter is 'char *', instead of 'const char *' - */ + j = strlen(name); + if (j < 128) { + for (i = 0; i < GHBN_NUM; i++) { + if (low > ghbn_cache[i].order) { + low = ghbn_cache[i].order; + lowi = i; + } + if (ghbn_cache[i].order > 0) { + if (strncmp(name, ghbn_cache[i].name, 128) == 0) + break; + } + } + } else + i = GHBN_NUM; + + if (i == GHBN_NUM) { /* no hit */ + BIO_ghbn_miss++; + /* + * Note: under VMS with SOCKETSHR, it seems like the first parameter + * is 'char *', instead of 'const char *' + */ # ifndef CONST_STRICT - ret=gethostbyname((char *)name); + ret = gethostbyname((char *)name); # else - ret=gethostbyname(name); + ret = gethostbyname(name); # endif - if (ret == NULL) - goto end; - if (j > 128) /* too big to cache */ - { + if (ret == NULL) + goto end; + if (j > 128) { /* too big to cache */ # if 0 - /* If we were trying to make this function thread-safe (which - * is bound to fail), we'd have to give up in this case - * (or allocate more memory). */ - ret = NULL; + /* + * If we were trying to make this function thread-safe (which is + * bound to fail), we'd have to give up in this case (or allocate + * more memory). + */ + ret = NULL; # endif - goto end; - } - - /* else add to cache */ - if (ghbn_cache[lowi].ent != NULL) - ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ - ghbn_cache[lowi].name[0] = '\0'; - - if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) - { - BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); - goto end; - } - strncpy(ghbn_cache[lowi].name,name,128); - ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; - } - else - { - BIO_ghbn_hits++; - ret= ghbn_cache[i].ent; - ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; - } -end: + goto end; + } + + /* else add to cache */ + if (ghbn_cache[lowi].ent != NULL) + ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ + ghbn_cache[lowi].name[0] = '\0'; + + if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) { + BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE); + goto end; + } + strncpy(ghbn_cache[lowi].name, name, 128); + ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits; + } else { + BIO_ghbn_hits++; + ret = ghbn_cache[i].ent; + ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits; + } + end: # if 0 - CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); + CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); # endif - return(ret); -#endif - } - + return (ret); +# 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 [beleived 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 - -#if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) +{ +# 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 [beleived 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 + +# if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) WORD wVerReq; WSADATA wsaData; int err; - if (!wsa_init_done) - { - wsa_init_done=1; - wVerReq = MAKEWORD( 2, 0 ); - err = WSAStartup(wVerReq,&wsaData); - if (err != 0) - { - SYSerr(SYS_F_WSASTARTUP,err); - BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); - return(-1); - } - } -#endif - - return(1); - } + if (!wsa_init_done) { + wsa_init_done = 1; + wVerReq = MAKEWORD(2, 0); + err = WSAStartup(wVerReq, &wsaData); + if (err != 0) { + SYSerr(SYS_F_WSASTARTUP, err); + BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP); + return (-1); + } + } +# endif + + return (1); +} void BIO_sock_cleanup(void) - { -#ifdef OPENSSL_SYS_WINDOWS - if (wsa_init_done) - { - wsa_init_done=0; -#if 0 /* this call is claimed to be non-present in Winsock2 */ - WSACancelBlockingCall(); -#endif - WSACleanup(); - } -#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) - if (wsa_init_done) - { - wsa_init_done=0; +{ +# ifdef OPENSSL_SYS_WINDOWS + if (wsa_init_done) { + wsa_init_done = 0; +# if 0 /* this call is claimed to be non-present in + * Winsock2 */ + WSACancelBlockingCall(); +# endif WSACleanup(); - } -#endif - } + } +# elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) + if (wsa_init_done) { + wsa_init_done = 0; + WSACleanup(); + } +# endif +} -#if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 +# if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 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); - } -#endif /* __VMS_VER */ - -/* The reason I have implemented this instead of using sscanf is because - * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ +{ + 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); +} +# endif /* __VMS_VER */ + +/* + * The reason I have implemented this instead of using sscanf is because + * Visual C 1.52c gives an unresolved external when linking a DLL :-( + */ static int get_ip(const char *str, unsigned char ip[4]) - { - unsigned int tmp[4]; - int num=0,c,ok=0; - - tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; - - for (;;) - { - c= *(str++); - if ((c >= '0') && (c <= '9')) - { - ok=1; - tmp[num]=tmp[num]*10+c-'0'; - if (tmp[num] > 255) return(0); - } - else if (c == '.') - { - if (!ok) return(-1); - if (num == 3) return(0); - num++; - ok=0; - } - else if (c == '\0' && (num == 3) && ok) - break; - else - return(0); - } - ip[0]=tmp[0]; - ip[1]=tmp[1]; - ip[2]=tmp[2]; - ip[3]=tmp[3]; - return(1); - } +{ + unsigned int tmp[4]; + int num = 0, c, ok = 0; + + tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0; + + for (;;) { + c = *(str++); + if ((c >= '0') && (c <= '9')) { + ok = 1; + tmp[num] = tmp[num] * 10 + c - '0'; + if (tmp[num] > 255) + return (0); + } else if (c == '.') { + if (!ok) + return (-1); + if (num == 3) + return (0); + num++; + ok = 0; + } else if (c == '\0' && (num == 3) && ok) + break; + else + return (0); + } + ip[0] = tmp[0]; + ip[1] = tmp[1]; + ip[2] = tmp[2]; + ip[3] = tmp[3]; + return (1); +} int BIO_get_accept_socket(char *host, int bind_mode) - { - int ret=0; - union { - struct sockaddr sa; - struct sockaddr_in sa_in; -#if OPENSSL_USE_IPV6 - struct sockaddr_in6 sa_in6; -#endif - } server,client; - int s=INVALID_SOCKET,cs,addrlen; - unsigned char ip[4]; - unsigned short port; - char *str=NULL,*e; - char *h,*p; - unsigned long l; - int err_num; - - if (BIO_sock_init() != 1) return(INVALID_SOCKET); - - if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); - - h=p=NULL; - h=str; - for (e=str; *e; e++) - { - if (*e == ':') - { - p=e; - } - else if (*e == '/') - { - *e='\0'; - break; - } - } - if (p) *p++='\0'; /* points at last ':', '::port' is special [see below] */ - else p=h,h=NULL; - -#ifdef EAI_FAMILY - do { - static union { void *p; - int (WSAAPI *f)(const char *,const char *, - const struct addrinfo *, - struct addrinfo **); - } p_getaddrinfo = {NULL}; - static union { void *p; - void (WSAAPI *f)(struct addrinfo *); - } p_freeaddrinfo = {NULL}; - struct addrinfo *res,hint; - - if (p_getaddrinfo.p==NULL) - { - if ((p_getaddrinfo.p=DSO_global_lookup("getaddrinfo"))==NULL || - (p_freeaddrinfo.p=DSO_global_lookup("freeaddrinfo"))==NULL) - p_getaddrinfo.p=(void*)-1; - } - if (p_getaddrinfo.p==(void *)-1) break; - - /* '::port' enforces IPv6 wildcard listener. Some OSes, - * e.g. Solaris, default to IPv6 without any hint. Also - * note that commonly IPv6 wildchard socket can service - * IPv4 connections just as well... */ - memset(&hint,0,sizeof(hint)); - hint.ai_flags = AI_PASSIVE; - if (h) - { - if (strchr(h,':')) - { - if (h[1]=='\0') h=NULL; -#if OPENSSL_USE_IPV6 - hint.ai_family = AF_INET6; -#else - h=NULL; -#endif - } - else if (h[0]=='*' && h[1]=='\0') - { - hint.ai_family = AF_INET; - h=NULL; - } - } - - if ((*p_getaddrinfo.f)(h,p,&hint,&res)) break; - - addrlen = res->ai_addrlen<=sizeof(server) ? - res->ai_addrlen : - sizeof(server); - memcpy(&server, res->ai_addr, addrlen); - - (*p_freeaddrinfo.f)(res); - goto again; - } while (0); -#endif - - if (!BIO_get_port(p,&port)) goto err; - - memset((char *)&server,0,sizeof(server)); - server.sa_in.sin_family=AF_INET; - server.sa_in.sin_port=htons(port); - addrlen = sizeof(server.sa_in); - - if (h == NULL || strcmp(h,"*") == 0) - server.sa_in.sin_addr.s_addr=INADDR_ANY; - else - { - if (!BIO_get_host_ip(h,&(ip[0]))) goto err; - l=(unsigned long) - ((unsigned long)ip[0]<<24L)| - ((unsigned long)ip[1]<<16L)| - ((unsigned long)ip[2]<< 8L)| - ((unsigned long)ip[3]); - server.sa_in.sin_addr.s_addr=htonl(l); - } - -again: - s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); - if (s == INVALID_SOCKET) - { - SYSerr(SYS_F_SOCKET,get_last_socket_error()); - ERR_add_error_data(3,"port='",host,"'"); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); - goto err; - } - -#ifdef SO_REUSEADDR - if (bind_mode == BIO_BIND_REUSEADDR) - { - int i=1; - - ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); - bind_mode=BIO_BIND_NORMAL; - } -#endif - if (bind(s,&server.sa,addrlen) == -1) - { -#ifdef SO_REUSEADDR - err_num=get_last_socket_error(); - if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && -#ifdef OPENSSL_SYS_WINDOWS - /* Some versions of Windows define EADDRINUSE to - * a dummy value. - */ - (err_num == WSAEADDRINUSE)) -#else - (err_num == EADDRINUSE)) -#endif - { - client = server; - if (h == NULL || strcmp(h,"*") == 0) - { -#if OPENSSL_USE_IPV6 - if (client.sa.sa_family == AF_INET6) - { - memset(&client.sa_in6.sin6_addr,0,sizeof(client.sa_in6.sin6_addr)); - client.sa_in6.sin6_addr.s6_addr[15]=1; - } - else -#endif - if (client.sa.sa_family == AF_INET) - { - client.sa_in.sin_addr.s_addr=htonl(0x7F000001); - } - else goto err; - } - cs=socket(client.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); - if (cs != INVALID_SOCKET) - { - int ii; - ii=connect(cs,&client.sa,addrlen); - closesocket(cs); - if (ii == INVALID_SOCKET) - { - bind_mode=BIO_BIND_REUSEADDR; - closesocket(s); - goto again; - } - /* else error */ - } - /* else error */ - } -#endif - SYSerr(SYS_F_BIND,err_num); - ERR_add_error_data(3,"port='",host,"'"); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); - goto err; - } - if (listen(s,MAX_LISTEN) == -1) - { - SYSerr(SYS_F_BIND,get_last_socket_error()); - ERR_add_error_data(3,"port='",host,"'"); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); - goto err; - } - ret=1; -err: - if (str != NULL) OPENSSL_free(str); - if ((ret == 0) && (s != INVALID_SOCKET)) - { - closesocket(s); - s= INVALID_SOCKET; - } - return(s); - } +{ + int ret = 0; + union { + struct sockaddr sa; + struct sockaddr_in sa_in; +# if OPENSSL_USE_IPV6 + struct sockaddr_in6 sa_in6; +# endif + } server, client; + int s = INVALID_SOCKET, cs, addrlen; + unsigned char ip[4]; + unsigned short port; + char *str = NULL, *e; + char *h, *p; + unsigned long l; + int err_num; + + if (BIO_sock_init() != 1) + return (INVALID_SOCKET); + + if ((str = BUF_strdup(host)) == NULL) + return (INVALID_SOCKET); + + h = p = NULL; + h = str; + for (e = str; *e; e++) { + if (*e == ':') { + p = e; + } else if (*e == '/') { + *e = '\0'; + break; + } + } + if (p) + *p++ = '\0'; /* points at last ':', '::port' is special + * [see below] */ + else + p = h, h = NULL; + +# ifdef EAI_FAMILY + do { + static union { + void *p; + int (WSAAPI *f) (const char *, const char *, + const struct addrinfo *, struct addrinfo **); + } p_getaddrinfo = { + NULL + }; + static union { + void *p; + void (WSAAPI *f) (struct addrinfo *); + } p_freeaddrinfo = { + NULL + }; + struct addrinfo *res, hint; + + if (p_getaddrinfo.p == NULL) { + if ((p_getaddrinfo.p = DSO_global_lookup("getaddrinfo")) == NULL + || (p_freeaddrinfo.p = + DSO_global_lookup("freeaddrinfo")) == NULL) + p_getaddrinfo.p = (void *)-1; + } + if (p_getaddrinfo.p == (void *)-1) + break; + + /* + * '::port' enforces IPv6 wildcard listener. Some OSes, e.g. Solaris, + * default to IPv6 without any hint. Also note that commonly IPv6 + * wildchard socket can service IPv4 connections just as well... + */ + memset(&hint, 0, sizeof(hint)); + hint.ai_flags = AI_PASSIVE; + if (h) { + if (strchr(h, ':')) { + if (h[1] == '\0') + h = NULL; +# if OPENSSL_USE_IPV6 + hint.ai_family = AF_INET6; +# else + h = NULL; +# endif + } else if (h[0] == '*' && h[1] == '\0') { + hint.ai_family = AF_INET; + h = NULL; + } + } + + if ((*p_getaddrinfo.f) (h, p, &hint, &res)) + break; + + addrlen = res->ai_addrlen <= sizeof(server) ? + res->ai_addrlen : sizeof(server); + memcpy(&server, res->ai_addr, addrlen); + + (*p_freeaddrinfo.f) (res); + goto again; + } while (0); +# endif + + if (!BIO_get_port(p, &port)) + goto err; + + memset((char *)&server, 0, sizeof(server)); + server.sa_in.sin_family = AF_INET; + server.sa_in.sin_port = htons(port); + addrlen = sizeof(server.sa_in); + + if (h == NULL || strcmp(h, "*") == 0) + server.sa_in.sin_addr.s_addr = INADDR_ANY; + else { + if (!BIO_get_host_ip(h, &(ip[0]))) + goto err; + l = (unsigned long) + ((unsigned long)ip[0] << 24L) | + ((unsigned long)ip[1] << 16L) | + ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]); + server.sa_in.sin_addr.s_addr = htonl(l); + } + + again: + s = socket(server.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL); + if (s == INVALID_SOCKET) { + SYSerr(SYS_F_SOCKET, get_last_socket_error()); + ERR_add_error_data(3, "port='", host, "'"); + BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET); + goto err; + } +# ifdef SO_REUSEADDR + if (bind_mode == BIO_BIND_REUSEADDR) { + int i = 1; + + ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&i, sizeof(i)); + bind_mode = BIO_BIND_NORMAL; + } +# endif + if (bind(s, &server.sa, addrlen) == -1) { +# ifdef SO_REUSEADDR + err_num = get_last_socket_error(); + if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && +# ifdef OPENSSL_SYS_WINDOWS + /* + * Some versions of Windows define EADDRINUSE to a dummy value. + */ + (err_num == WSAEADDRINUSE)) +# else + (err_num == EADDRINUSE)) +# endif + { + client = server; + if (h == NULL || strcmp(h, "*") == 0) { +# if OPENSSL_USE_IPV6 + if (client.sa.sa_family == AF_INET6) { + memset(&client.sa_in6.sin6_addr, 0, + sizeof(client.sa_in6.sin6_addr)); + client.sa_in6.sin6_addr.s6_addr[15] = 1; + } else +# endif + if (client.sa.sa_family == AF_INET) { + client.sa_in.sin_addr.s_addr = htonl(0x7F000001); + } else + goto err; + } + cs = socket(client.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL); + if (cs != INVALID_SOCKET) { + int ii; + ii = connect(cs, &client.sa, addrlen); + closesocket(cs); + if (ii == INVALID_SOCKET) { + bind_mode = BIO_BIND_REUSEADDR; + closesocket(s); + goto again; + } + /* else error */ + } + /* else error */ + } +# endif + SYSerr(SYS_F_BIND, err_num); + ERR_add_error_data(3, "port='", host, "'"); + BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_BIND_SOCKET); + goto err; + } + if (listen(s, MAX_LISTEN) == -1) { + SYSerr(SYS_F_BIND, get_last_socket_error()); + ERR_add_error_data(3, "port='", host, "'"); + BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_LISTEN_SOCKET); + goto err; + } + ret = 1; + err: + if (str != NULL) + OPENSSL_free(str); + if ((ret == 0) && (s != INVALID_SOCKET)) { + closesocket(s); + s = INVALID_SOCKET; + } + return (s); +} int BIO_accept(int sock, char **addr) - { - int ret=INVALID_SOCKET; - unsigned long l; - unsigned short port; - char *p; - - struct { - /* - * As for following union. Trouble is that there are platforms - * that have socklen_t and there are platforms that don't, on - * some platforms socklen_t is int and on some size_t. So what - * one can do? One can cook #ifdef spaghetti, which is nothing - * but masochistic. Or one can do union between int and size_t. - * One naturally does it primarily for 64-bit platforms where - * sizeof(int) != sizeof(size_t). But would it work? Note that - * if size_t member is initialized to 0, then later int member - * assignment naturally does the job on little-endian platforms - * regardless accept's expectations! What about big-endians? - * If accept expects int*, then it works, and if size_t*, then - * length value would appear as unreasonably large. But this - * won't prevent it from filling in the address structure. The - * trouble of course would be if accept returns more data than - * actual buffer can accomodate and overwrite stack... That's - * where early OPENSSL_assert comes into picture. Besides, the - * only 64-bit big-endian platform found so far that expects - * size_t* is HP-UX, where stack grows towards higher address. - * <appro> - */ - union { size_t s; int i; } len; - union { - struct sockaddr sa; - struct sockaddr_in sa_in; -#if OPENSSL_USE_IPV6 - struct sockaddr_in6 sa_in6; -#endif - } from; - } sa; - - sa.len.s=0; - sa.len.i=sizeof(sa.from); - memset(&sa.from,0,sizeof(sa.from)); - ret=accept(sock,&sa.from.sa,(void *)&sa.len); - if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0) - { - OPENSSL_assert(sa.len.s<=sizeof(sa.from)); - sa.len.i = (int)sa.len.s; - /* use sa.len.i from this point */ - } - if (ret == INVALID_SOCKET) - { - if(BIO_sock_should_retry(ret)) return -2; - SYSerr(SYS_F_ACCEPT,get_last_socket_error()); - BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); - goto end; - } - - if (addr == NULL) goto end; - -#ifdef EAI_FAMILY - do { - char h[NI_MAXHOST],s[NI_MAXSERV]; - size_t nl; - static union { void *p; - int (WSAAPI *f)(const struct sockaddr *,size_t/*socklen_t*/, - char *,size_t,char *,size_t,int); - } p_getnameinfo = {NULL}; - /* 2nd argument to getnameinfo is specified to - * be socklen_t. Unfortunately there is a number - * of environments where socklen_t is not defined. - * As it's passed by value, it's safe to pass it - * as size_t... <appro> */ - - if (p_getnameinfo.p==NULL) - { - if ((p_getnameinfo.p=DSO_global_lookup("getnameinfo"))==NULL) - p_getnameinfo.p=(void*)-1; - } - if (p_getnameinfo.p==(void *)-1) break; - - if ((*p_getnameinfo.f)(&sa.from.sa,sa.len.i,h,sizeof(h),s,sizeof(s), - NI_NUMERICHOST|NI_NUMERICSERV)) break; - nl = strlen(h)+strlen(s)+2; - p = *addr; - if (p) { *p = '\0'; p = OPENSSL_realloc(p,nl); } - else { p = OPENSSL_malloc(nl); } - if (p==NULL) - { - BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); - goto end; - } - *addr = p; - BIO_snprintf(*addr,nl,"%s:%s",h,s); - goto end; - } while(0); -#endif - if (sa.from.sa.sa_family != AF_INET) goto end; - l=ntohl(sa.from.sa_in.sin_addr.s_addr); - port=ntohs(sa.from.sa_in.sin_port); - if (*addr == NULL) - { - if ((p=OPENSSL_malloc(24)) == NULL) - { - BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); - goto end; - } - *addr=p; - } - BIO_snprintf(*addr,24,"%d.%d.%d.%d:%d", - (unsigned char)(l>>24L)&0xff, - (unsigned char)(l>>16L)&0xff, - (unsigned char)(l>> 8L)&0xff, - (unsigned char)(l )&0xff, - port); -end: - return(ret); - } +{ + int ret = INVALID_SOCKET; + unsigned long l; + unsigned short port; + char *p; + + struct { + /* + * As for following union. Trouble is that there are platforms + * that have socklen_t and there are platforms that don't, on + * some platforms socklen_t is int and on some size_t. So what + * one can do? One can cook #ifdef spaghetti, which is nothing + * but masochistic. Or one can do union between int and size_t. + * One naturally does it primarily for 64-bit platforms where + * sizeof(int) != sizeof(size_t). But would it work? Note that + * if size_t member is initialized to 0, then later int member + * assignment naturally does the job on little-endian platforms + * regardless accept's expectations! What about big-endians? + * If accept expects int*, then it works, and if size_t*, then + * length value would appear as unreasonably large. But this + * won't prevent it from filling in the address structure. The + * trouble of course would be if accept returns more data than + * actual buffer can accomodate and overwrite stack... That's + * where early OPENSSL_assert comes into picture. Besides, the + * only 64-bit big-endian platform found so far that expects + * size_t* is HP-UX, where stack grows towards higher address. + * <appro> + */ + union { + size_t s; + int i; + } len; + union { + struct sockaddr sa; + struct sockaddr_in sa_in; +# if OPENSSL_USE_IPV6 + struct sockaddr_in6 sa_in6; +# endif + } from; + } sa; + + sa.len.s = 0; + sa.len.i = sizeof(sa.from); + memset(&sa.from, 0, sizeof(sa.from)); + ret = accept(sock, &sa.from.sa, (void *)&sa.len); + if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) { + OPENSSL_assert(sa.len.s <= sizeof(sa.from)); + sa.len.i = (int)sa.len.s; + /* use sa.len.i from this point */ + } + if (ret == INVALID_SOCKET) { + if (BIO_sock_should_retry(ret)) + return -2; + SYSerr(SYS_F_ACCEPT, get_last_socket_error()); + BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR); + goto end; + } + + if (addr == NULL) + goto end; + +# ifdef EAI_FAMILY + do { + char h[NI_MAXHOST], s[NI_MAXSERV]; + size_t nl; + static union { + void *p; + int (WSAAPI *f) (const struct sockaddr *, size_t /* socklen_t */ , + char *, size_t, char *, size_t, int); + } p_getnameinfo = { + NULL + }; + /* + * 2nd argument to getnameinfo is specified to be socklen_t. + * Unfortunately there is a number of environments where socklen_t is + * not defined. As it's passed by value, it's safe to pass it as + * size_t... <appro> + */ + + if (p_getnameinfo.p == NULL) { + if ((p_getnameinfo.p = DSO_global_lookup("getnameinfo")) == NULL) + p_getnameinfo.p = (void *)-1; + } + if (p_getnameinfo.p == (void *)-1) + break; + + if ((*p_getnameinfo.f) (&sa.from.sa, sa.len.i, h, sizeof(h), s, + sizeof(s), NI_NUMERICHOST | NI_NUMERICSERV)) + break; + nl = strlen(h) + strlen(s) + 2; + p = *addr; + if (p) { + *p = '\0'; + p = OPENSSL_realloc(p, nl); + } else { + p = OPENSSL_malloc(nl); + } + if (p == NULL) { + BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); + goto end; + } + *addr = p; + BIO_snprintf(*addr, nl, "%s:%s", h, s); + goto end; + } while (0); +# endif + if (sa.from.sa.sa_family != AF_INET) + goto end; + l = ntohl(sa.from.sa_in.sin_addr.s_addr); + port = ntohs(sa.from.sa_in.sin_port); + if (*addr == NULL) { + if ((p = OPENSSL_malloc(24)) == NULL) { + BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); + goto end; + } + *addr = p; + } + BIO_snprintf(*addr, 24, "%d.%d.%d.%d:%d", + (unsigned char)(l >> 24L) & 0xff, + (unsigned char)(l >> 16L) & 0xff, + (unsigned char)(l >> 8L) & 0xff, + (unsigned char)(l) & 0xff, port); + end: + return (ret); +} 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 ret = 0; +# if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) + int opt; -int BIO_socket_nbio(int s, int mode) - { - int ret= -1; - int l; +# ifdef SOL_TCP + opt = SOL_TCP; +# else +# ifdef IPPROTO_TCP + opt = IPPROTO_TCP; +# endif +# endif - l=mode; -#ifdef FIONBIO - ret=BIO_socket_ioctl(s,FIONBIO,&l); -#endif - return(ret == 0); - } + 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 + ret = BIO_socket_ioctl(s, FIONBIO, &l); +# endif + return (ret == 0); +} #endif |