diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/bio/bss_sock.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/bio/bss_sock.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/bio/bss_sock.c b/openssl-1.1.0h/crypto/bio/bss_sock.c new file mode 100644 index 0000000..992266d --- /dev/null +++ b/openssl-1.1.0h/crypto/bio/bss_sock.c @@ -0,0 +1,231 @@ +/* + * 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 <errno.h> +#define USE_SOCKETS +#include "bio_lcl.h" +#include "internal/cryptlib.h" + +#ifndef OPENSSL_NO_SOCK + +# include <openssl/bio.h> + +# ifdef WATT32 +/* Watt-32 uses same names */ +# undef sock_write +# undef sock_read +# undef sock_puts +# define sock_write SockWrite +# define sock_read SockRead +# define sock_puts SockPuts +# endif + +static int sock_write(BIO *h, const char *buf, int num); +static int sock_read(BIO *h, char *buf, int size); +static int sock_puts(BIO *h, const char *str); +static long sock_ctrl(BIO *h, int cmd, long arg1, void *arg2); +static int sock_new(BIO *h); +static int sock_free(BIO *data); +int BIO_sock_should_retry(int s); + +static const BIO_METHOD methods_sockp = { + BIO_TYPE_SOCKET, + "socket", + sock_write, + sock_read, + sock_puts, + NULL, /* sock_gets, */ + sock_ctrl, + sock_new, + sock_free, + NULL, /* sock_callback_ctrl */ +}; + +const BIO_METHOD *BIO_s_socket(void) +{ + return (&methods_sockp); +} + +BIO *BIO_new_socket(int fd, int close_flag) +{ + BIO *ret; + + ret = BIO_new(BIO_s_socket()); + if (ret == NULL) + return (NULL); + BIO_set_fd(ret, fd, close_flag); + return (ret); +} + +static int sock_new(BIO *bi) +{ + bi->init = 0; + bi->num = 0; + bi->ptr = NULL; + bi->flags = 0; + return (1); +} + +static int sock_free(BIO *a) +{ + if (a == NULL) + return (0); + if (a->shutdown) { + if (a->init) { + BIO_closesocket(a->num); + } + a->init = 0; + a->flags = 0; + } + return (1); +} + +static int sock_read(BIO *b, char *out, int outl) +{ + int ret = 0; + + if (out != NULL) { + clear_socket_error(); + ret = readsocket(b->num, out, outl); + BIO_clear_retry_flags(b); + if (ret <= 0) { + if (BIO_sock_should_retry(ret)) + BIO_set_retry_read(b); + } + } + return (ret); +} + +static int sock_write(BIO *b, const char *in, int inl) +{ + int ret; + + clear_socket_error(); + ret = writesocket(b->num, in, inl); + BIO_clear_retry_flags(b); + if (ret <= 0) { + if (BIO_sock_should_retry(ret)) + BIO_set_retry_write(b); + } + return (ret); +} + +static long sock_ctrl(BIO *b, int cmd, long num, void *ptr) +{ + long ret = 1; + int *ip; + + switch (cmd) { + case BIO_C_SET_FD: + sock_free(b); + b->num = *((int *)ptr); + b->shutdown = (int)num; + b->init = 1; + break; + case BIO_C_GET_FD: + if (b->init) { + ip = (int *)ptr; + if (ip != NULL) + *ip = b->num; + ret = b->num; + } else + ret = -1; + break; + case BIO_CTRL_GET_CLOSE: + ret = b->shutdown; + break; + case BIO_CTRL_SET_CLOSE: + b->shutdown = (int)num; + break; + case BIO_CTRL_DUP: + case BIO_CTRL_FLUSH: + ret = 1; + break; + default: + ret = 0; + break; + } + return (ret); +} + +static int sock_puts(BIO *bp, const char *str) +{ + int n, ret; + + n = strlen(str); + ret = sock_write(bp, str, n); + return (ret); +} + +int BIO_sock_should_retry(int i) +{ + int err; + + if ((i == 0) || (i == -1)) { + err = get_last_socket_error(); + + return (BIO_sock_non_fatal_error(err)); + } + return (0); +} + +int BIO_sock_non_fatal_error(int err) +{ + switch (err) { +# if defined(OPENSSL_SYS_WINDOWS) +# if defined(WSAEWOULDBLOCK) + case WSAEWOULDBLOCK: +# endif +# endif + +# ifdef EWOULDBLOCK +# ifdef WSAEWOULDBLOCK +# if WSAEWOULDBLOCK != EWOULDBLOCK + case EWOULDBLOCK: +# endif +# else + case EWOULDBLOCK: +# endif +# endif + +# if defined(ENOTCONN) + case ENOTCONN: +# endif + +# ifdef EINTR + case EINTR: +# endif + +# ifdef EAGAIN +# if EWOULDBLOCK != EAGAIN + case EAGAIN: +# endif +# endif + +# ifdef EPROTO + case EPROTO: +# endif + +# ifdef EINPROGRESS + case EINPROGRESS: +# endif + +# ifdef EALREADY + case EALREADY: +# endif + return (1); + /* break; */ + default: + break; + } + return (0); +} + +#endif /* #ifndef OPENSSL_NO_SOCK */ |