From 06f4536a616c228a222beca36e15eabb430d3a5f Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Mon, 20 Sep 1999 22:09:17 +0000 Subject: [PATCH] Fix to make s_client and s_server work under Windows. A bit of a hack but an improvement on not working at all. --- CHANGES | 13 +++++++++++++ apps/s_client.c | 52 ++++++++++++++++++++++++++++++++++++++++++------- apps/s_server.c | 26 ++++++++++++++++++++++--- 3 files changed, 81 insertions(+), 10 deletions(-) diff --git a/CHANGES b/CHANGES index 6deb18fda2..005844183a 100644 --- a/CHANGES +++ b/CHANGES @@ -4,6 +4,19 @@ Changes between 0.9.4 and 0.9.5 [xx XXX 1999] + *) Ugly workaround to get s_client and s_server working under Windows. The + old code wouldn't work because it needed to select() on sockets and the + tty (for keypresses and to see if data could be written). Win32 only + supports select() on sockets so we select() with a 1s timeout on the + sockets and then see if any characters are waiting to be read, if none + are present then we retry, we also assume we can always write data to + the tty. This isn't nice because the code then blocks until we've + received a complete line of data and it is effectively polling the + keyboard at 1s intervals: however it's quite a bit better than not + working at all :-) A dedicated Windows application might handle this + with an event loop for example. + [Steve Henson] + *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions will be called when RSA_sign() and RSA_verify() are used. This is useful diff --git a/apps/s_client.c b/apps/s_client.c index ea3e039e30..6fcad17913 100644 --- a/apps/s_client.c +++ b/apps/s_client.c @@ -81,6 +81,11 @@ typedef unsigned int u_int; #include #include "s_apps.h" +#ifdef WINDOWS +#include +#endif + + #if (defined(VMS) && __VMS_VER < 70000000) /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ #undef FIONBIO @@ -173,7 +178,9 @@ int MAIN(int argc, char **argv) int ret=1,in_init=1,i,nbio_test=0; SSL_METHOD *meth=NULL; BIO *sbio; - /*static struct timeval timeout={10,0};*/ +#ifdef WINDOWS + struct timeval tv; +#endif #if !defined(NO_SSL2) && !defined(NO_SSL3) meth=SSLv23_client_method(); @@ -465,12 +472,18 @@ re_start: if (read_tty) FD_SET(fileno(stdin),&readfds); if (write_tty) FD_SET(fileno(stdout),&writefds); } -#endif if (read_ssl) FD_SET(SSL_get_fd(con),&readfds); if (write_ssl) FD_SET(SSL_get_fd(con),&writefds); - +#else + if(!tty_on || !write_tty) { + if (read_ssl) + FD_SET(SSL_get_fd(con),&readfds); + if (write_ssl) + FD_SET(SSL_get_fd(con),&writefds); + } +#endif /* printf("mode tty(%d %d%d) ssl(%d%d)\n", tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ @@ -480,8 +493,28 @@ re_start: * will choke the compiler: if you do have a cast then * you can either go for (int *) or (void *). */ +#ifdef WINDOWS + /* Under Windows we make the assumption that we can + * always write to the tty: therefore if we need to + * write to the tty we just fall through. Otherwise + * we timeout the select every second and see if there + * are any keypresses. Note: this is a hack, in a proper + * Windows application we wouldn't do this. + */ + if(!write_tty) { + if(read_tty) { + tv.tv_sec = 1; + tv.tv_usec = 0; + i=select(width,(void *)&readfds,(void *)&writefds, + NULL,&tv); + if(!i && (!_kbhit() || !read_tty) ) continue; + } else i=select(width,(void *)&readfds,(void *)&writefds, + NULL,NULL); + } +#else i=select(width,(void *)&readfds,(void *)&writefds, NULL,NULL); +#endif if ( i < 0) { BIO_printf(bio_err,"bad select %d\n", @@ -558,8 +591,12 @@ re_start: goto shut; } } -#ifndef WINDOWS +#ifdef WINDOWS + /* Assume Windows can always write */ + else if (!ssl_pending && write_tty) +#else else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds)) +#endif { #ifdef CHARSET_EBCDIC ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len); @@ -581,7 +618,6 @@ re_start: write_tty=0; } } -#endif else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds)) { #ifdef RENEG @@ -636,8 +672,11 @@ printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240 } } -#ifndef WINDOWS +#ifdef WINDOWS + else if (_kbhit()) +#else else if (FD_ISSET(fileno(stdin),&readfds)) +#endif { if (crlf) { @@ -688,7 +727,6 @@ printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240 write_ssl=1; read_tty=0; } -#endif } shut: SSL_shutdown(con); diff --git a/apps/s_server.c b/apps/s_server.c index 144dfa662f..3ed008c3cf 100644 --- a/apps/s_server.c +++ b/apps/s_server.c @@ -85,6 +85,10 @@ typedef unsigned int u_int; #include #include "s_apps.h" +#ifdef WINDOWS +#include +#endif + #if (defined(VMS) && __VMS_VER < 70000000) /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ #undef FIONBIO @@ -748,6 +752,9 @@ static int sv_body(char *hostname, int s, unsigned char *context) unsigned long l; SSL *con=NULL; BIO *sbio; +#ifdef WINDOWS + struct timeval tv; +#endif if ((buf=Malloc(bufsize)) == NULL) { @@ -807,9 +814,22 @@ static int sv_body(char *hostname, int s, unsigned char *context) * the compiler: if you do have a cast then you can either * go for (int *) or (void *). */ - i=select(width,(void *)&readfds,NULL,NULL,NULL); - if (i <= 0) continue; - if (FD_ISSET(fileno(stdin),&readfds)) +#ifdef WINDOWS + /* Under Windows we can't select on stdin: only + * on sockets. As a workaround we timeout the select every + * second and check for any keypress. In a proper Windows + * application we wouldn't do this because it is inefficient. + */ + tv.tv_sec = 1; + tv.tv_usec = 0; + i=select(width,(void *)&readfds,NULL,NULL,&tv); + if((i < 0) || (!i && !_kbhit() ) )continue; + if(_kbhit()) +#else + i=select(width,(void *)&readfds,NULL,NULL,NULL); + if (i <= 0) continue; + if (FD_ISSET(fileno(stdin),&readfds)) +#endif { if (s_crlf) { -- 2.25.1