1 files changed, 0 insertions, 285 deletions
diff --git a/windows/winmiscs.c b/windows/winmiscs.c
deleted file mode 100644
index 571a9122..00000000
--- a/windows/winmiscs.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * winmiscs.c: Windows-specific standalone functions. Has the same
- * relationship to winmisc.c that utils.c does to misc.c, but the
- * corresponding name 'winutils.c' was already taken.
- */
-
-#include "putty.h"
-
-#ifndef NO_SECUREZEROMEMORY
-/*
- * Windows implementation of smemclr (see misc.c) using SecureZeroMemory.
- */
-void smemclr(void *b, size_t n) {
-    if (b && n > 0)
-        SecureZeroMemory(b, n);
-}
-#endif
-
-#ifdef MINEFIELD
-/*
- * Minefield - a Windows equivalent for Electric Fence
- */
-
-#define PAGESIZE 4096
-
-/*
- * Design:
- *
- * We start by reserving as much virtual address space as Windows
- * will sensibly (or not sensibly) let us have. We flag it all as
- * invalid memory.
- *
- * Any allocation attempt is satisfied by committing one or more
- * pages, with an uncommitted page on either side. The returned
- * memory region is jammed up against the _end_ of the pages.
- *
- * Freeing anything causes instantaneous decommitment of the pages
- * involved, so stale pointers are caught as soon as possible.
- */
-
-static int minefield_initialised = 0;
-static void *minefield_region = NULL;
-static long minefield_size = 0;
-static long minefield_npages = 0;
-static long minefield_curpos = 0;
-static unsigned short *minefield_admin = NULL;
-static void *minefield_pages = NULL;
-
-static void minefield_admin_hide(int hide)
-{
-    int access = hide ? PAGE_NOACCESS : PAGE_READWRITE;
-    VirtualProtect(minefield_admin, minefield_npages * 2, access, NULL);
-}
-
-static void minefield_init(void)
-{
-    int size;
-    int admin_size;
-    int i;
-
-    for (size = 0x40000000; size > 0; size = ((size >> 3) * 7) & ~0xFFF) {
-        minefield_region = VirtualAlloc(NULL, size,
-                                        MEM_RESERVE, PAGE_NOACCESS);
-        if (minefield_region)
-            break;
-    }
-    minefield_size = size;
-
-    /*
-     * Firstly, allocate a section of that to be the admin block.
-     * We'll need a two-byte field for each page.
-     */
-    minefield_admin = minefield_region;
-    minefield_npages = minefield_size / PAGESIZE;
-    admin_size = (minefield_npages * 2 + PAGESIZE - 1) & ~(PAGESIZE - 1);
-    minefield_npages = (minefield_size - admin_size) / PAGESIZE;
-    minefield_pages = (char *) minefield_region + admin_size;
-
-    /*
-     * Commit the admin region.
-     */
-    VirtualAlloc(minefield_admin, minefield_npages * 2,
-                 MEM_COMMIT, PAGE_READWRITE);
-
-    /*
-     * Mark all pages as unused (0xFFFF).
-     */
-    for (i = 0; i < minefield_npages; i++)
-        minefield_admin[i] = 0xFFFF;
-
-    /*
-     * Hide the admin region.
-     */
-    minefield_admin_hide(1);
-
-    minefield_initialised = 1;
-}
-
-static void minefield_bomb(void)
-{
-    div(1, *(int *) minefield_pages);
-}
-
-static void *minefield_alloc(int size)
-{
-    int npages;
-    int pos, lim, region_end, region_start;
-    int start;
-    int i;
-
-    npages = (size + PAGESIZE - 1) / PAGESIZE;
-
-    minefield_admin_hide(0);
-
-    /*
-     * Search from current position until we find a contiguous
-     * bunch of npages+2 unused pages.
-     */
-    pos = minefield_curpos;
-    lim = minefield_npages;
-    while (1) {
-        /* Skip over used pages. */
-        while (pos < lim && minefield_admin[pos] != 0xFFFF)
-            pos++;
-        /* Count unused pages. */
-        start = pos;
-        while (pos < lim && pos - start < npages + 2 &&
-               minefield_admin[pos] == 0xFFFF)
-            pos++;
-        if (pos - start == npages + 2)
-            break;
-        /* If we've reached the limit, reset the limit or stop. */
-        if (pos >= lim) {
-            if (lim == minefield_npages) {
-                /* go round and start again at zero */
-                lim = minefield_curpos;
-                pos = 0;
-            } else {
-                minefield_admin_hide(1);
-                return NULL;
-            }
-        }
-    }
-
-    minefield_curpos = pos - 1;
-
-    /*
-     * We have npages+2 unused pages starting at start. We leave
-     * the first and last of these alone and use the rest.
-     */
-    region_end = (start + npages + 1) * PAGESIZE;
-    region_start = region_end - size;
-    /* FIXME: could align here if we wanted */
-
-    /*
-     * Update the admin region.
-     */
-    for (i = start + 2; i < start + npages + 1; i++)
-        minefield_admin[i] = 0xFFFE;   /* used but no region starts here */
-    minefield_admin[start + 1] = region_start % PAGESIZE;
-
-    minefield_admin_hide(1);
-
-    VirtualAlloc((char *) minefield_pages + region_start, size,
-                 MEM_COMMIT, PAGE_READWRITE);
-    return (char *) minefield_pages + region_start;
-}
-
-static void minefield_free(void *ptr)
-{
-    int region_start, i, j;
-
-    minefield_admin_hide(0);
-
-    region_start = (char *) ptr - (char *) minefield_pages;
-    i = region_start / PAGESIZE;
-    if (i < 0 || i >= minefield_npages ||
-        minefield_admin[i] != region_start % PAGESIZE)
-        minefield_bomb();
-    for (j = i; j < minefield_npages && minefield_admin[j] != 0xFFFF; j++) {
-        minefield_admin[j] = 0xFFFF;
-    }
-
-    VirtualFree(ptr, j * PAGESIZE - region_start, MEM_DECOMMIT);
-
-    minefield_admin_hide(1);
-}
-
-static int minefield_get_size(void *ptr)
-{
-    int region_start, i, j;
-
-    minefield_admin_hide(0);
-
-    region_start = (char *) ptr - (char *) minefield_pages;
-    i = region_start / PAGESIZE;
-    if (i < 0 || i >= minefield_npages ||
-        minefield_admin[i] != region_start % PAGESIZE)
-        minefield_bomb();
-    for (j = i; j < minefield_npages && minefield_admin[j] != 0xFFFF; j++);
-
-    minefield_admin_hide(1);
-
-    return j * PAGESIZE - region_start;
-}
-
-void *minefield_c_malloc(size_t size)
-{
-    if (!minefield_initialised)
-        minefield_init();
-    return minefield_alloc(size);
-}
-
-void minefield_c_free(void *p)
-{
-    if (!minefield_initialised)
-        minefield_init();
-    minefield_free(p);
-}
-
-/*
- * realloc _always_ moves the chunk, for rapid detection of code
- * that assumes it won't.
- */
-void *minefield_c_realloc(void *p, size_t size)
-{
-    size_t oldsize;
-    void *q;
-    if (!minefield_initialised)
-        minefield_init();
-    q = minefield_alloc(size);
-    oldsize = minefield_get_size(p);
-    memcpy(q, p, (oldsize < size ? oldsize : size));
-    minefield_free(p);
-    return q;
-}
-
-#endif                          /* MINEFIELD */
-
-#if defined _MSC_VER && _MSC_VER < 1800
-
-/*
- * Work around lack of strtoumax in older MSVC libraries
- */
-uintmax_t strtoumax(const char *nptr, char **endptr, int base)
-{
-    return _strtoui64(nptr, endptr, base);
-}
-
-#endif
-
-#if defined _M_ARM || defined _M_ARM64
-
-bool platform_aes_hw_available(void)
-{
-    return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
-}
-
-bool platform_sha256_hw_available(void)
-{
-    return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
-}
-
-bool platform_sha1_hw_available(void)
-{
-    return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
-}
-
-bool platform_sha512_hw_available(void)
-{
-    /* As of 2020-12-24, as far as I can tell from docs.microsoft.com,
-     * Windows on Arm does not yet provide a PF_ARM_V8_* flag for the
-     * SHA-512 architecture extension. */
-    return false;
-}
-
-#endif
-
-bool is_console_handle(HANDLE handle)
-{
-    DWORD ignored_output;
-    if (GetConsoleMode(handle, &ignored_output))
-        return true;
-    return false;
-}