diff options
Diffstat (limited to 'openssl/crypto/bio/bss_rtcp.c')
| -rw-r--r-- | openssl/crypto/bio/bss_rtcp.c | 297 |
1 files changed, 161 insertions, 136 deletions
diff --git a/openssl/crypto/bio/bss_rtcp.c b/openssl/crypto/bio/bss_rtcp.c index 7dae48556..09f14f48d 100644 --- a/openssl/crypto/bio/bss_rtcp.c +++ b/openssl/crypto/bio/bss_rtcp.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 @@ -49,16 +49,17 @@ * 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 * [including the GNU Public Licence.] */ -/* Written by David L. Jones <jonesd@kcgl1.eng.ohio-state.edu> +/*- + * Written by David L. Jones <jonesd@kcgl1.eng.ohio-state.edu> * Date: 22-JUL-1996 - * Revised: 25-SEP-1997 Update for 0.8.1, BIO_CTRL_SET -> BIO_C_SET_FD + * Revised: 25-SEP-1997 Update for 0.8.1, BIO_CTRL_SET -> BIO_C_SET_FD */ /* VMS */ #include <stdio.h> @@ -68,18 +69,26 @@ #include "cryptlib.h" #include <openssl/bio.h> -#include <iodef.h> /* VMS IO$_ definitions */ +#include <iodef.h> /* VMS IO$_ definitions */ #include <starlet.h> typedef unsigned short io_channel; /*************************************************************************/ -struct io_status { short status, count; long flags; }; +struct io_status { + short status, count; + long flags; +}; -struct rpc_msg { /* Should have member alignment inhibited */ - char channel; /* 'A'-app data. 'R'-remote client 'G'-global */ - char function; /* 'G'-get, 'P'-put, 'C'-confirm, 'X'-close */ - unsigned short int length; /* Amount of data returned or max to return */ - char data[4092]; /* variable data */ +/* Should have member alignment inhibited */ +struct rpc_msg { + /* 'A'-app data. 'R'-remote client 'G'-global */ + char channel; + /* 'G'-get, 'P'-put, 'C'-confirm, 'X'-close */ + char function; + /* Amount of data returned or max to return */ + unsigned short int length; + /* variable data */ + char data[4092]; }; #define RPC_HDR_SIZE (sizeof(struct rpc_msg) - 4092) @@ -88,64 +97,68 @@ struct rpc_ctx { struct rpc_msg msg; }; -static int rtcp_write(BIO *h,const char *buf,int num); -static int rtcp_read(BIO *h,char *buf,int size); -static int rtcp_puts(BIO *h,const char *str); -static int rtcp_gets(BIO *h,char *str,int size); -static long rtcp_ctrl(BIO *h,int cmd,long arg1,void *arg2); +static int rtcp_write(BIO *h, const char *buf, int num); +static int rtcp_read(BIO *h, char *buf, int size); +static int rtcp_puts(BIO *h, const char *str); +static int rtcp_gets(BIO *h, char *str, int size); +static long rtcp_ctrl(BIO *h, int cmd, long arg1, void *arg2); static int rtcp_new(BIO *h); static int rtcp_free(BIO *data); -static BIO_METHOD rtcp_method= - { - BIO_TYPE_FD, - "RTCP", - rtcp_write, - rtcp_read, - rtcp_puts, - rtcp_gets, - rtcp_ctrl, - rtcp_new, - rtcp_free, - NULL, - }; +static BIO_METHOD rtcp_method = { + BIO_TYPE_FD, + "RTCP", + rtcp_write, + rtcp_read, + rtcp_puts, + rtcp_gets, + rtcp_ctrl, + rtcp_new, + rtcp_free, + NULL, +}; BIO_METHOD *BIO_s_rtcp(void) - { - return(&rtcp_method); - } +{ + return (&rtcp_method); +} + /*****************************************************************************/ -/* Decnet I/O routines. +/* + * Decnet I/O routines. */ #ifdef __DECC -#pragma message save -#pragma message disable DOLLARID +# pragma message save +# pragma message disable DOLLARID #endif -static int get ( io_channel chan, char *buffer, int maxlen, int *length ) +static int get(io_channel chan, char *buffer, int maxlen, int *length) { int status; struct io_status iosb; - status = sys$qiow ( 0, chan, IO$_READVBLK, &iosb, 0, 0, - buffer, maxlen, 0, 0, 0, 0 ); - if ( (status&1) == 1 ) status = iosb.status; - if ( (status&1) == 1 ) *length = iosb.count; + status = sys$qiow(0, chan, IO$_READVBLK, &iosb, 0, 0, + buffer, maxlen, 0, 0, 0, 0); + if ((status & 1) == 1) + status = iosb.status; + if ((status & 1) == 1) + *length = iosb.count; return status; } -static int put ( io_channel chan, char *buffer, int length ) +static int put(io_channel chan, char *buffer, int length) { int status; struct io_status iosb; - status = sys$qiow ( 0, chan, IO$_WRITEVBLK, &iosb, 0, 0, - buffer, length, 0, 0, 0, 0 ); - if ( (status&1) == 1 ) status = iosb.status; + status = sys$qiow(0, chan, IO$_WRITEVBLK, &iosb, 0, 0, + buffer, length, 0, 0, 0, 0); + if ((status & 1) == 1) + status = iosb.status; return status; } #ifdef __DECC -#pragma message restore +# pragma message restore #endif /***************************************************************************/ @@ -153,24 +166,26 @@ static int put ( io_channel chan, char *buffer, int length ) static int rtcp_new(BIO *bi) { struct rpc_ctx *ctx; - bi->init=1; - bi->num=0; - bi->flags = 0; - bi->ptr=OPENSSL_malloc(sizeof(struct rpc_ctx)); - ctx = (struct rpc_ctx *) bi->ptr; - ctx->filled = 0; - ctx->pos = 0; - return(1); + bi->init = 1; + bi->num = 0; + bi->flags = 0; + bi->ptr = OPENSSL_malloc(sizeof(struct rpc_ctx)); + ctx = (struct rpc_ctx *)bi->ptr; + ctx->filled = 0; + ctx->pos = 0; + return (1); } static int rtcp_free(BIO *a) { - if (a == NULL) return(0); - if ( a->ptr ) OPENSSL_free ( a->ptr ); - a->ptr = NULL; - return(1); + if (a == NULL) + return (0); + if (a->ptr) + OPENSSL_free(a->ptr); + a->ptr = NULL; + return (1); } - + static int rtcp_read(BIO *b, char *out, int outl) { int status, length; @@ -178,13 +193,14 @@ static int rtcp_read(BIO *b, char *out, int outl) /* * read data, return existing. */ - ctx = (struct rpc_ctx *) b->ptr; - if ( ctx->pos < ctx->filled ) { - length = ctx->filled - ctx->pos; - if ( length > outl ) length = outl; - memmove ( out, &ctx->msg.data[ctx->pos], length ); - ctx->pos += length; - return length; + ctx = (struct rpc_ctx *)b->ptr; + if (ctx->pos < ctx->filled) { + length = ctx->filled - ctx->pos; + if (length > outl) + length = outl; + memmove(out, &ctx->msg.data[ctx->pos], length); + ctx->pos += length; + return length; } /* * Requst more data from R channel. @@ -192,27 +208,29 @@ static int rtcp_read(BIO *b, char *out, int outl) ctx->msg.channel = 'R'; ctx->msg.function = 'G'; ctx->msg.length = sizeof(ctx->msg.data); - status = put ( b->num, (char *) &ctx->msg, RPC_HDR_SIZE ); - if ( (status&1) == 0 ) { - return -1; + status = put(b->num, (char *)&ctx->msg, RPC_HDR_SIZE); + if ((status & 1) == 0) { + return -1; } /* * Read. */ ctx->pos = ctx->filled = 0; - status = get ( b->num, (char *) &ctx->msg, sizeof(ctx->msg), &length ); - if ( (status&1) == 0 ) length = -1; - if ( ctx->msg.channel != 'R' || ctx->msg.function != 'C' ) { - length = -1; + status = get(b->num, (char *)&ctx->msg, sizeof(ctx->msg), &length); + if ((status & 1) == 0) + length = -1; + if (ctx->msg.channel != 'R' || ctx->msg.function != 'C') { + length = -1; } ctx->filled = length - RPC_HDR_SIZE; - - if ( ctx->pos < ctx->filled ) { - length = ctx->filled - ctx->pos; - if ( length > outl ) length = outl; - memmove ( out, ctx->msg.data, length ); - ctx->pos += length; - return length; + + if (ctx->pos < ctx->filled) { + length = ctx->filled - ctx->pos; + if (length > outl) + length = outl; + memmove(out, ctx->msg.data, length); + ctx->pos += length; + return length; } return length; @@ -225,70 +243,77 @@ static int rtcp_write(BIO *b, const char *in, int inl) /* * Output data, send in chunks no larger that sizeof(ctx->msg.data). */ - ctx = (struct rpc_ctx *) b->ptr; - for ( i = 0; i < inl; i += segment ) { - segment = inl - i; - if ( segment > sizeof(ctx->msg.data) ) segment = sizeof(ctx->msg.data); - ctx->msg.channel = 'R'; - ctx->msg.function = 'P'; - ctx->msg.length = segment; - memmove ( ctx->msg.data, &in[i], segment ); - status = put ( b->num, (char *) &ctx->msg, segment + RPC_HDR_SIZE ); - if ((status&1) == 0 ) { i = -1; break; } + ctx = (struct rpc_ctx *)b->ptr; + for (i = 0; i < inl; i += segment) { + segment = inl - i; + if (segment > sizeof(ctx->msg.data)) + segment = sizeof(ctx->msg.data); + ctx->msg.channel = 'R'; + ctx->msg.function = 'P'; + ctx->msg.length = segment; + memmove(ctx->msg.data, &in[i], segment); + status = put(b->num, (char *)&ctx->msg, segment + RPC_HDR_SIZE); + if ((status & 1) == 0) { + i = -1; + break; + } - status = get ( b->num, (char *) &ctx->msg, sizeof(ctx->msg), &length ); - if ( ((status&1) == 0) || (length < RPC_HDR_SIZE) ) { i = -1; break; } - if ( (ctx->msg.channel != 'R') || (ctx->msg.function != 'C') ) { - printf("unexpected response when confirming put %c %c\n", - ctx->msg.channel, ctx->msg.function ); + status = get(b->num, (char *)&ctx->msg, sizeof(ctx->msg), &length); + if (((status & 1) == 0) || (length < RPC_HDR_SIZE)) { + i = -1; + break; + } + if ((ctx->msg.channel != 'R') || (ctx->msg.function != 'C')) { + printf("unexpected response when confirming put %c %c\n", + ctx->msg.channel, ctx->msg.function); - } + } } - return(i); + return (i); } static long rtcp_ctrl(BIO *b, int cmd, long num, void *ptr) - { - long ret=1; +{ + long ret = 1; - switch (cmd) - { - case BIO_CTRL_RESET: - case BIO_CTRL_EOF: - ret = 1; - break; - case BIO_C_SET_FD: - b->num = num; - ret = 1; - break; - case BIO_CTRL_SET_CLOSE: - case BIO_CTRL_FLUSH: - case BIO_CTRL_DUP: - ret=1; - break; - case BIO_CTRL_GET_CLOSE: - case BIO_CTRL_INFO: - case BIO_CTRL_GET: - case BIO_CTRL_PENDING: - case BIO_CTRL_WPENDING: - default: - ret=0; - break; - } - return(ret); - } + switch (cmd) { + case BIO_CTRL_RESET: + case BIO_CTRL_EOF: + ret = 1; + break; + case BIO_C_SET_FD: + b->num = num; + ret = 1; + break; + case BIO_CTRL_SET_CLOSE: + case BIO_CTRL_FLUSH: + case BIO_CTRL_DUP: + ret = 1; + break; + case BIO_CTRL_GET_CLOSE: + case BIO_CTRL_INFO: + case BIO_CTRL_GET: + case BIO_CTRL_PENDING: + case BIO_CTRL_WPENDING: + default: + ret = 0; + break; + } + return (ret); +} static int rtcp_gets(BIO *bp, char *buf, int size) - { - return(0); - } +{ + return (0); +} static int rtcp_puts(BIO *bp, const char *str) { int length; - if (str == NULL) return(0); - length = strlen ( str ); - if ( length == 0 ) return (0); - return rtcp_write ( bp,str, length ); + if (str == NULL) + return (0); + length = strlen(str); + if (length == 0) + return (0); + return rtcp_write(bp, str, length); } - |