Switch to using libarchive from libtar for cpack and cmake -E tar

This allows for a built in bzip and zip capability, so external tools
will not be needed for these packagers.  The cmake -E tar xf should be
able to handle all compression types now as well.

1 files changed, 455 insertions, 0 deletions

diff --git a/Utilities/cmlibarchive/libarchive/archive_string.c b/Utilities/cmlibarchive/libarchive/archive_string.c
new file mode 100644
index 0000000..8a93e31
--- /dev/null
+++ b/Utilities/cmlibarchive/libarchive/archive_string.c
@@ -0,0 +1,455 @@
+/*-
+ * Copyright (c) 2003-2007 Tim Kientzle
+ * All rights reserved.
+ *
+ * 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 above 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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.
+ */
+
+#include "archive_platform.h"
+__FBSDID("$FreeBSD: src/lib/libarchive/archive_string.c,v 1.17 2008/12/06 05:56:43 kientzle Exp $");
+
+/*
+ * Basic resizable string support, to simplify manipulating arbitrary-sized
+ * strings while minimizing heap activity.
+ */
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#if defined(_WIN32) && !defined(__CYGWIN__)
+#include <windows.h>
+#endif
+
+#include "archive_private.h"
+#include "archive_string.h"
+
+struct archive_string *
+__archive_string_append(struct archive_string *as, const char *p, size_t s)
+{
+    if (__archive_string_ensure(as, as->length + s + 1) == NULL)
+        __archive_errx(1, "Out of memory");
+    memcpy(as->s + as->length, p, s);
+    as->s[as->length + s] = 0;
+    as->length += s;
+    return (as);
+}
+
+void
+__archive_string_copy(struct archive_string *dest, struct archive_string *src)
+{
+    if (src->length == 0)
+        dest->length = 0;
+    else {
+        if (__archive_string_ensure(dest, src->length + 1) == NULL)
+            __archive_errx(1, "Out of memory");
+        memcpy(dest->s, src->s, src->length);
+        dest->length = src->length;
+        dest->s[dest->length] = 0;
+    }
+}
+
+void
+__archive_string_concat(struct archive_string *dest, struct archive_string *src)
+{
+    if (src->length > 0) {
+        if (__archive_string_ensure(dest, dest->length + src->length + 1) == NULL)
+            __archive_errx(1, "Out of memory");
+        memcpy(dest->s + dest->length, src->s, src->length);
+        dest->length += src->length;
+        dest->s[dest->length] = 0;
+    }
+}
+
+void
+__archive_string_free(struct archive_string *as)
+{
+    as->length = 0;
+    as->buffer_length = 0;
+    if (as->s != NULL) {
+        free(as->s);
+        as->s = NULL;
+    }
+}
+
+/* Returns NULL on any allocation failure. */
+struct archive_string *
+__archive_string_ensure(struct archive_string *as, size_t s)
+{
+    /* If buffer is already big enough, don't reallocate. */
+    if (as->s && (s <= as->buffer_length))
+        return (as);
+
+    /*
+     * Growing the buffer at least exponentially ensures that
+     * append operations are always linear in the number of
+     * characters appended.  Using a smaller growth rate for
+     * larger buffers reduces memory waste somewhat at the cost of
+     * a larger constant factor.
+     */
+    if (as->buffer_length < 32)
+        /* Start with a minimum 32-character buffer. */
+        as->buffer_length = 32;
+    else if (as->buffer_length < 8192)
+        /* Buffers under 8k are doubled for speed. */
+        as->buffer_length += as->buffer_length;
+    else {
+        /* Buffers 8k and over grow by at least 25% each time. */
+        size_t old_length = as->buffer_length;
+        as->buffer_length += as->buffer_length / 4;
+        /* Be safe: If size wraps, release buffer and return NULL. */
+        if (as->buffer_length < old_length) {
+            free(as->s);
+            as->s = NULL;
+            return (NULL);
+        }
+    }
+    /*
+     * The computation above is a lower limit to how much we'll
+     * grow the buffer.  In any case, we have to grow it enough to
+     * hold the request.
+     */
+    if (as->buffer_length < s)
+        as->buffer_length = s;
+    /* Now we can reallocate the buffer. */
+    as->s = (char *)realloc(as->s, as->buffer_length);
+    if (as->s == NULL)
+        return (NULL);
+    return (as);
+}
+
+struct archive_string *
+__archive_strncat(struct archive_string *as, const void *_p, size_t n)
+{
+    size_t s;
+    const char *p, *pp;
+
+    p = (const char *)_p;
+
+    /* Like strlen(p), except won't examine positions beyond p[n]. */
+    s = 0;
+    pp = p;
+    while (*pp && s < n) {
+        pp++;
+        s++;
+    }
+    return (__archive_string_append(as, p, s));
+}
+
+struct archive_string *
+__archive_strappend_char(struct archive_string *as, char c)
+{
+    return (__archive_string_append(as, &c, 1));
+}
+
+/*
+ * Translates a wide character string into UTF-8 and appends
+ * to the archive_string.  Note: returns NULL if conversion fails,
+ * but still leaves a best-effort conversion in the argument as.
+ */
+struct archive_string *
+__archive_strappend_w_utf8(struct archive_string *as, const wchar_t *w)
+{
+    char *p;
+    unsigned wc;
+    char buff[256];
+    struct archive_string *return_val = as;
+
+    /*
+     * Convert one wide char at a time into 'buff', whenever that
+     * fills, append it to the string.
+     */
+    p = buff;
+    while (*w != L'\0') {
+        /* Flush the buffer when we have <=16 bytes free. */
+        /* (No encoding has a single character >16 bytes.) */
+        if ((size_t)(p - buff) >= (size_t)(sizeof(buff) - 16)) {
+            *p = '\0';
+            archive_strcat(as, buff);
+            p = buff;
+        }
+        wc = *w++;
+        /* If this is a surrogate pair, assemble the full code point.*/
+        /* Note: wc must not be wchar_t here, because the full code
+         * point can be more than 16 bits! */
+        if (wc >= 0xD800 && wc <= 0xDBff
+            && *w >= 0xDC00 && *w <= 0xDFFF) {
+            wc -= 0xD800;
+            wc *= 0x400;
+            wc += (*w - 0xDC00);
+            wc += 0x10000;
+            ++w;
+        }
+        /* Translate code point to UTF8 */
+        if (wc <= 0x7f) {
+            *p++ = (char)wc;
+        } else if (wc <= 0x7ff) {
+            *p++ = 0xc0 | ((wc >> 6) & 0x1f);
+            *p++ = 0x80 | (wc & 0x3f);
+        } else if (wc <= 0xffff) {
+            *p++ = 0xe0 | ((wc >> 12) & 0x0f);
+            *p++ = 0x80 | ((wc >> 6) & 0x3f);
+            *p++ = 0x80 | (wc & 0x3f);
+        } else if (wc <= 0x1fffff) {
+            *p++ = 0xf0 | ((wc >> 18) & 0x07);
+            *p++ = 0x80 | ((wc >> 12) & 0x3f);
+            *p++ = 0x80 | ((wc >> 6) & 0x3f);
+            *p++ = 0x80 | (wc & 0x3f);
+        } else {
+            /* Unicode has no codes larger than 0x1fffff. */
+            /* TODO: use \uXXXX escape here instead of ? */
+            *p++ = '?';
+            return_val = NULL;
+        }
+    }
+    *p = '\0';
+    archive_strcat(as, buff);
+    return (return_val);
+}
+
+static int
+utf8_to_unicode(int *pwc, const char *s, size_t n)
+{
+        int ch;
+
+        /*
+     * Decode 1-4 bytes depending on the value of the first byte.
+     */
+        ch = (unsigned char)*s;
+    if (ch == 0) {
+        return (0); /* Standard:  return 0 for end-of-string. */
+    }
+    if ((ch & 0x80) == 0) {
+                *pwc = ch & 0x7f;
+        return (1);
+        }
+    if ((ch & 0xe0) == 0xc0) {
+        if (n < 2)
+            return (-1);
+        if ((s[1] & 0xc0) != 0x80) return (-1);
+                *pwc = ((ch & 0x1f) << 6) | (s[1] & 0x3f);
+        return (2);
+        }
+    if ((ch & 0xf0) == 0xe0) {
+        if (n < 3)
+            return (-1);
+        if ((s[1] & 0xc0) != 0x80) return (-1);
+        if ((s[2] & 0xc0) != 0x80) return (-1);
+                *pwc = ((ch & 0x0f) << 12)
+            | ((s[1] & 0x3f) << 6)
+            | (s[2] & 0x3f);
+        return (3);
+        }
+    if ((ch & 0xf8) == 0xf0) {
+        if (n < 4)
+            return (-1);
+        if ((s[1] & 0xc0) != 0x80) return (-1);
+        if ((s[2] & 0xc0) != 0x80) return (-1);
+        if ((s[3] & 0xc0) != 0x80) return (-1);
+                *pwc = ((ch & 0x07) << 18)
+            | ((s[1] & 0x3f) << 12)
+            | ((s[2] & 0x3f) << 6)
+            | (s[3] & 0x3f);
+        return (4);
+        }
+    /* Invalid first byte. */
+    return (-1);
+}
+
+/*
+ * Return a wide-character Unicode string by converting this archive_string
+ * from UTF-8.  We assume that systems with 16-bit wchar_t always use
+ * UTF16 and systems with 32-bit wchar_t can accept UCS4.
+ */
+wchar_t *
+__archive_string_utf8_w(struct archive_string *as)
+{
+    wchar_t *ws, *dest;
+    int wc, wc2;/* Must be large enough for a 21-bit Unicode code point. */
+    const char *src;
+    int n;
+    int err;
+
+    ws = (wchar_t *)malloc((as->length + 1) * sizeof(wchar_t));
+    if (ws == NULL)
+        __archive_errx(1, "Out of memory");
+    err = 0;
+    dest = ws;
+    src = as->s;
+    while (*src != '\0') {
+        n = utf8_to_unicode(&wc, src, 8);
+        if (n == 0)
+            break;
+        if (n < 0) {
+            free(ws);
+            return (NULL);
+        }
+        src += n;
+        if (wc >= 0xDC00 && wc <= 0xDBFF) {
+            /* This is a leading surrogate; some idiot
+             * has translated UTF16 to UTF8 without combining
+             * surrogates; rebuild the full code point before
+             * continuing. */
+            n = utf8_to_unicode(&wc2, src, 8);
+            if (n < 0) {
+                free(ws);
+                return (NULL);
+            }
+            if (n == 0) /* Ignore the leading surrogate */
+                break;
+            if (wc2 < 0xDC00 || wc2 > 0xDFFF) {
+                /* If the second character isn't a
+                 * trailing surrogate, then someone
+                 * has really screwed up and this is
+                 * invalid. */
+                free(ws);
+                return (NULL);
+            } else {
+                src += n;
+                wc -= 0xD800;
+                wc *= 0x400;
+                wc += wc2 - 0xDC00;
+                wc += 0x10000;
+            }
+        }
+        if ((sizeof(wchar_t) < 4) && (wc > 0xffff)) {
+            /* We have a code point that won't fit into a
+             * wchar_t; convert it to a surrogate pair. */
+            wc -= 0x10000;
+            *dest++ = ((wc >> 10) & 0x3ff) + 0xD800;
+            *dest++ = (wc & 0x3ff) + 0xDC00;
+        } else
+            *dest++ = wc;
+    }
+    *dest++ = L'\0';
+    return (ws);
+}
+
+#if defined(_WIN32) && !defined(__CYGWIN__)
+
+/*
+ * Translates a wide character string into current locale character set
+ * and appends to the archive_string.  Note: returns NULL if conversion
+ * fails.
+ *
+ * Win32 builds use WideCharToMultiByte from the Windows API.
+ * (Maybe Cygwin should too?  WideCharToMultiByte will know a
+ * lot more about local character encodings than the wcrtomb()
+ * wrapper is going to know.)
+ */
+struct archive_string *
+__archive_strappend_w_mbs(struct archive_string *as, const wchar_t *w)
+{
+    char *p;
+    int l, wl;
+    BOOL useDefaultChar = FALSE;
+
+    wl = (int)wcslen(w);
+    l = wl * 4 + 4;
+    p = malloc(l);
+    if (p == NULL)
+        __archive_errx(1, "Out of memory");
+    /* To check a useDefaultChar is to simulate error handling of
+     * the my_wcstombs() which is running on non Windows system with
+     * wctomb().
+     * And to set NULL for last argument is necessary when a codepage
+     * is not CP_ACP(current locale).
+     */
+    l = WideCharToMultiByte(CP_ACP, 0, w, wl, p, l, NULL, &useDefaultChar);
+    if (l == 0) {
+        free(p);
+        return (NULL);
+    }
+    __archive_string_append(as, p, l);
+    free(p);
+    return (as);
+}
+
+#else
+
+/*
+ * Translates a wide character string into current locale character set
+ * and appends to the archive_string.  Note: returns NULL if conversion
+ * fails.
+ *
+ * Non-Windows uses ISO C wcrtomb() or wctomb() to perform the conversion
+ * one character at a time.  If a non-Windows platform doesn't have
+ * either of these, fall back to the built-in UTF8 conversion.
+ */
+struct archive_string *
+__archive_strappend_w_mbs(struct archive_string *as, const wchar_t *w)
+{
+#if !defined(HAVE_WCTOMB) && !defined(HAVE_WCRTOMB)
+    /* If there's no built-in locale support, fall back to UTF8 always. */
+    return __archive_strappend_w_utf8(as, w);
+#else
+    /* We cannot use the standard wcstombs() here because it
+     * cannot tell us how big the output buffer should be.  So
+     * I've built a loop around wcrtomb() or wctomb() that
+     * converts a character at a time and resizes the string as
+     * needed.  We prefer wcrtomb() when it's available because
+     * it's thread-safe. */
+    int n;
+    char *p;
+    char buff[256];
+#if HAVE_WCRTOMB
+    mbstate_t shift_state;
+
+    memset(&shift_state, 0, sizeof(shift_state));
+#else
+    /* Clear the shift state before starting. */
+    wctomb(NULL, L'\0');
+#endif
+
+    /*
+     * Convert one wide char at a time into 'buff', whenever that
+     * fills, append it to the string.
+     */
+    p = buff;
+    while (*w != L'\0') {
+        /* Flush the buffer when we have <=16 bytes free. */
+        /* (No encoding has a single character >16 bytes.) */
+        if ((size_t)(p - buff) >= (size_t)(sizeof(buff) - MB_CUR_MAX)) {
+            *p = '\0';
+            archive_strcat(as, buff);
+            p = buff;
+        }
+#if HAVE_WCRTOMB
+        n = wcrtomb(p, *w++, &shift_state);
+#else
+        n = wctomb(p, *w++);
+#endif
+        if (n == -1)
+            return (NULL);
+        p += n;
+    }
+    *p = '\0';
+    archive_strcat(as, buff);
+    return (as);
+#endif
+}
+
+#endif /* _WIN32 && ! __CYGWIN__ */