Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78

trunk/3rdparty/openssl-1.1-fit/crypto/bio/bss_fd.c

@@ -0,0 +1,280 @@
+/*
+ * 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>
+
+#include "bio_lcl.h"
+
+#if defined(OPENSSL_NO_POSIX_IO)
+/*
+ * Dummy placeholder for BIO_s_fd...
+ */
+BIO *BIO_new_fd(int fd, int close_flag)
+{
+    return NULL;
+}
+
+int BIO_fd_non_fatal_error(int err)
+{
+    return 0;
+}
+
+int BIO_fd_should_retry(int i)
+{
+    return 0;
+}
+
+const BIO_METHOD *BIO_s_fd(void)
+{
+    return NULL;
+}
+#else
+/*
+ * As for unconditional usage of "UPLINK" interface in this module.
+ * Trouble is that unlike Unix file descriptors [which are indexes
+ * in kernel-side per-process table], corresponding descriptors on
+ * platforms which require "UPLINK" interface seem to be indexes
+ * in a user-land, non-global table. Well, in fact they are indexes
+ * in stdio _iob[], and recall that _iob[] was the very reason why
+ * "UPLINK" interface was introduced in first place. But one way on
+ * another. Neither libcrypto or libssl use this BIO meaning that
+ * file descriptors can only be provided by application. Therefore
+ * "UPLINK" calls are due...
+ */
+static int fd_write(BIO *h, const char *buf, int num);
+static int fd_read(BIO *h, char *buf, int size);
+static int fd_puts(BIO *h, const char *str);
+static int fd_gets(BIO *h, char *buf, int size);
+static long fd_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int fd_new(BIO *h);
+static int fd_free(BIO *data);
+int BIO_fd_should_retry(int s);
+
+static const BIO_METHOD methods_fdp = {
+    BIO_TYPE_FD,
+    "file descriptor",
+    /* TODO: Convert to new style write function */
+    bwrite_conv,
+    fd_write,
+    /* TODO: Convert to new style read function */
+    bread_conv,
+    fd_read,
+    fd_puts,
+    fd_gets,
+    fd_ctrl,
+    fd_new,
+    fd_free,
+    NULL,                       /* fd_callback_ctrl */
+};
+
+const BIO_METHOD *BIO_s_fd(void)
+{
+    return &methods_fdp;
+}
+
+BIO *BIO_new_fd(int fd, int close_flag)
+{
+    BIO *ret;
+    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 *bi)
+{
+    bi->init = 0;
+    bi->num = -1;
+    bi->ptr = NULL;
+    bi->flags = BIO_FLAGS_UPLINK; /* essentially redundant */
+    return 1;
+}
+
+static int fd_free(BIO *a)
+{
+    if (a == NULL)
+        return 0;
+    if (a->shutdown) {
+        if (a->init) {
+            UP_close(a->num);
+        }
+        a->init = 0;
+        a->flags = BIO_FLAGS_UPLINK;
+    }
+    return 1;
+}
+
+static int fd_read(BIO *b, char *out, int outl)
+{
+    int ret = 0;
+
+    if (out != NULL) {
+        clear_sys_error();
+        ret = UP_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;
+    clear_sys_error();
+    ret = UP_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;
+        /* fall thru */
+    case BIO_C_FILE_SEEK:
+        ret = (long)UP_lseek(b->num, num, 0);
+        break;
+    case BIO_C_FILE_TELL:
+    case BIO_CTRL_INFO:
+        ret = (long)UP_lseek(b->num, 0, 1);
+        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;
+            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_PENDING:
+    case BIO_CTRL_WPENDING:
+        ret = 0;
+        break;
+    case BIO_CTRL_DUP:
+    case BIO_CTRL_FLUSH:
+        ret = 1;
+        break;
+    default:
+        ret = 0;
+        break;
+    }
+    return ret;
+}
+
+static int fd_puts(BIO *bp, const char *str)
+{
+    int n, ret;
+
+    n = strlen(str);
+    ret = fd_write(bp, str, n);
+    return ret;
+}
+
+static int fd_gets(BIO *bp, char *buf, int size)
+{
+    int ret = 0;
+    char *ptr = buf;
+    char *end = buf + size - 1;
+
+    while (ptr < end && fd_read(bp, ptr, 1) > 0) {
+        if (*ptr++ == '\n')
+           break;
+    }
+
+    ptr[0] = '\0';
+
+    if (buf[0] != '\0')
+        ret = strlen(buf);
+    return ret;
+}
+
+int BIO_fd_should_retry(int i)
+{
+    int err;
+
+    if ((i == 0) || (i == -1)) {
+        err = get_last_sys_error();
+
+        return BIO_fd_non_fatal_error(err);
+    }
+    return 0;
+}
+
+int BIO_fd_non_fatal_error(int err)
+{
+    switch (err) {
+
+# 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;
+    default:
+        break;
+    }
+    return 0;
+}
+#endif