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-rw-r--r--src/crypto/bio/fd.c270
1 files changed, 270 insertions, 0 deletions
diff --git a/src/crypto/bio/fd.c b/src/crypto/bio/fd.c
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--- /dev/null
+++ b/src/crypto/bio/fd.c
@@ -0,0 +1,270 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * 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:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * 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
+ * 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
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * 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.] */
+
+#include <openssl/bio.h>
+
+#include <errno.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <unistd.h>
+#else
+#include <io.h>
+#pragma warning(push, 3)
+#include <Windows.h>
+#pragma warning(pop)
+#endif
+
+#include <openssl/buf.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+
+static int bio_fd_non_fatal_error(int err) {
+ if (
+#ifdef EWOULDBLOCK
+ err == EWOULDBLOCK ||
+#endif
+#ifdef WSAEWOULDBLOCK
+ err == WSAEWOULDBLOCK ||
+#endif
+#ifdef ENOTCONN
+ err == ENOTCONN ||
+#endif
+#ifdef EINTR
+ err == EINTR ||
+#endif
+#ifdef EAGAIN
+ err == EAGAIN ||
+#endif
+#ifdef EPROTO
+ err == EPROTO ||
+#endif
+#ifdef EINPROGRESS
+ err == EINPROGRESS ||
+#endif
+#ifdef EALREADY
+ err == EALREADY ||
+#endif
+ 0) {
+ return 1;
+ }
+ return 0;
+}
+
+#if defined(OPENSSL_WINDOWS)
+int bio_fd_should_retry(int i) {
+ if (i == -1) {
+ return bio_fd_non_fatal_error((int)GetLastError());
+ }
+ return 0;
+}
+#else
+int bio_fd_should_retry(int i) {
+ if (i == -1) {
+ return bio_fd_non_fatal_error(errno);
+ }
+ return 0;
+}
+#endif
+
+BIO *BIO_new_fd(int fd, int close_flag) {
+ BIO *ret = BIO_new(BIO_s_fd());
+ if (ret == NULL) {
+ return NULL;
+ }
+ BIO_set_fd(ret, fd, close_flag);
+ return ret;
+}
+
+static int fd_new(BIO *bio) {
+ /* num is used to store the file descriptor. */
+ bio->num = -1;
+ return 1;
+}
+
+static int fd_free(BIO *bio) {
+ if (bio == NULL) {
+ return 0;
+ }
+
+ if (bio->shutdown) {
+ if (bio->init) {
+ close(bio->num);
+ }
+ bio->init = 0;
+ }
+ return 1;
+}
+
+static int fd_read(BIO *b, char *out, int outl) {
+ int ret = 0;
+
+ ret = read(b->num, out, outl);
+ BIO_clear_retry_flags(b);
+ if (ret <= 0) {
+ if (bio_fd_should_retry(ret)) {
+ BIO_set_retry_read(b);
+ }
+ }
+
+ return ret;
+}
+
+static int fd_write(BIO *b, const char *in, int inl) {
+ int ret = write(b->num, in, inl);
+ BIO_clear_retry_flags(b);
+ if (ret <= 0) {
+ if (bio_fd_should_retry(ret)) {
+ BIO_set_retry_write(b);
+ }
+ }
+
+ return ret;
+}
+
+static long fd_ctrl(BIO *b, int cmd, long num, void *ptr) {
+ long ret = 1;
+ int *ip;
+
+ switch (cmd) {
+ case BIO_CTRL_RESET:
+ num = 0;
+ case BIO_C_FILE_SEEK:
+ ret = 0;
+ if (b->init) {
+ ret = (long)lseek(b->num, num, SEEK_SET);
+ }
+ break;
+ case BIO_C_FILE_TELL:
+ case BIO_CTRL_INFO:
+ ret = 0;
+ if (b->init) {
+ ret = (long)lseek(b->num, 0, SEEK_CUR);
+ }
+ break;
+ case BIO_C_SET_FD:
+ fd_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;
+ }
+ return 1;
+ } else {
+ ret = 0;
+ }
+ break;
+ case BIO_CTRL_GET_CLOSE:
+ ret = b->shutdown;
+ break;
+ case BIO_CTRL_SET_CLOSE:
+ b->shutdown = (int)num;
+ break;
+ case BIO_CTRL_PENDING:
+ case BIO_CTRL_WPENDING:
+ ret = 0;
+ break;
+ case BIO_CTRL_FLUSH:
+ ret = 1;
+ break;
+ default:
+ ret = 0;
+ break;
+ }
+
+ return ret;
+}
+
+static int fd_puts(BIO *bp, const char *str) {
+ return fd_write(bp, str, strlen(str));
+}
+
+static int fd_gets(BIO *bp, char *buf, int size) {
+ char *ptr = buf;
+ char *end = buf + size - 1;
+
+ if (size <= 0) {
+ return 0;
+ }
+
+ while (ptr < end && fd_read(bp, ptr, 1) > 0 && ptr[0] != '\n') {
+ ptr++;
+ }
+
+ ptr[0] = '\0';
+
+ return ptr - buf;
+}
+
+static const BIO_METHOD methods_fdp = {
+ BIO_TYPE_FD, "file descriptor", fd_write, fd_read, fd_puts,
+ fd_gets, fd_ctrl, fd_new, fd_free, NULL, };
+
+const BIO_METHOD *BIO_s_fd(void) { return &methods_fdp; }
+
+int BIO_set_fd(BIO *bio, int fd, int close_flag) {
+ return BIO_int_ctrl(bio, BIO_C_SET_FD, close_flag, fd);
+}
+
+int BIO_get_fd(BIO *bio, int *out_fd) {
+ return BIO_ctrl(bio, BIO_C_GET_FD, 0, (char *) out_fd);
+}
generated by cgit v1.1 at 2024-05-23 02:58:57 +0000