Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 258 insertions, 0 deletions

diff --git a/third_party/heimdal/lib/roken/base64.c b/third_party/heimdal/lib/roken/base64.c
new file mode 100644
index 0000000..582d183
--- /dev/null
+++ b/third_party/heimdal/lib/roken/base64.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 1995-2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE 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.
+ */
+
+#include <config.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#ifdef TEST
+#include <stdio.h>
+#include <getarg.h>
+#include <err.h>
+#endif
+#include "base64.h"
+#include "roken.h"
+
+static const char base64_chars[] =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+static int
+pos(char c)
+{
+    const char *p;
+    for (p = base64_chars; *p; p++)
+	if (*p == c)
+	    return p - base64_chars;
+    return -1;
+}
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+rk_base64_encode(const void *data, int size, char **str)
+{
+    char *s, *p;
+    int i;
+    int c;
+    const unsigned char *q;
+
+    if (size > INT_MAX/4 || size < 0) {
+	*str = NULL;
+        errno = ERANGE;
+	return -1;
+    }
+
+    p = s = (char *) malloc(size * 4 / 3 + 4);
+    if (p == NULL) {
+        *str = NULL;
+	return -1;
+    }
+    q = (const unsigned char *) data;
+
+    for (i = 0; i < size;) {
+	c = q[i++];
+	c *= 256;
+	if (i < size)
+	    c += q[i];
+	i++;
+	c *= 256;
+	if (i < size)
+	    c += q[i];
+	i++;
+	p[0] = base64_chars[(c & 0x00fc0000) >> 18];
+	p[1] = base64_chars[(c & 0x0003f000) >> 12];
+	p[2] = base64_chars[(c & 0x00000fc0) >> 6];
+	p[3] = base64_chars[(c & 0x0000003f) >> 0];
+	if (i > size)
+	    p[3] = '=';
+	if (i > size + 1)
+	    p[2] = '=';
+	p += 4;
+    }
+    *p = 0;
+    *str = s;
+    return (int) strlen(s);
+}
+
+#define DECODE_ERROR 0xffffffff
+
+static unsigned int
+token_decode(const char *token)
+{
+    int i;
+    unsigned int val = 0;
+    int marker = 0;
+    if (strlen(token) < 4)
+	return DECODE_ERROR;
+    for (i = 0; i < 4; i++) {
+	val *= 64;
+	if (token[i] == '=')
+	    marker++;
+	else if (marker > 0)
+	    return DECODE_ERROR;
+	else
+	    val += pos(token[i]);
+    }
+    if (marker > 2)
+	return DECODE_ERROR;
+    return (marker << 24) | val;
+}
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+rk_base64_decode(const char *str, void *data)
+{
+    const char *p;
+    unsigned char *q;
+
+    q = data;
+    for (p = str; *p && (*p == '=' || strchr(base64_chars, *p)); p += 4) {
+	unsigned int val = token_decode(p);
+	unsigned int marker = (val >> 24) & 0xff;
+	if (val == DECODE_ERROR) {
+            errno = EINVAL;
+	    return -1;
+        }
+	*q++ = (val >> 16) & 0xff;
+	if (marker < 2)
+	    *q++ = (val >> 8) & 0xff;
+	if (marker < 1)
+	    *q++ = val & 0xff;
+    }
+    if (q - (unsigned char *) data > INT_MAX) {
+        errno = EOVERFLOW;
+        return -1;
+    }
+    return q - (unsigned char *) data;
+}
+
+#ifdef TEST
+static int decode_flag;
+static int help_flag;
+
+/*
+ * The short options are compatible with a subset of the FreeBSD contrib
+ * vis(1).  Heimdal additions have long option names only.
+ */
+static struct getargs args[] = {
+    { "decode", 'd', arg_flag, &decode_flag, "Decode", NULL },
+    { "help", 'h', arg_flag, &help_flag, "Print help message", NULL },
+};
+static size_t num_args = sizeof(args)/sizeof(args[0]);
+
+int
+main(int argc, char **argv)
+{
+    unsigned char *buf = NULL;
+    size_t buflen = 0;
+    size_t bufsz = 0;
+    int goptind = 0;
+    int ret;
+
+    setprogname("rkbase64");
+    if (getarg(args, num_args, argc, argv, &goptind) || help_flag) {
+        arg_printusage(args, num_args, NULL, "FILE | -");
+        return help_flag ? 0 : 1;
+    }
+
+    argc -= goptind;
+    argv += goptind;
+
+    if (help_flag)
+        return arg_printusage(args, num_args, NULL, "FILE | -- -"), 0;
+    if (argc != 1)
+        return arg_printusage(args, num_args, NULL, "FILE | -- -"), 1;
+
+    if (strcmp(argv[0], "-") == 0) {
+        unsigned char *tmp;
+        unsigned char d[4096];
+        size_t bytes;
+
+        while (!feof(stdin) && !ferror(stdin)) {
+            bytes = fread(d, 1, sizeof(d), stdin);
+            if (bytes == 0)
+                continue;
+            if (buflen + bytes > bufsz) {
+                if ((tmp = realloc(buf, bufsz + (bufsz >> 2) + sizeof(d))) == NULL)
+                    err(1, "Could not read stdin");
+                buf = tmp;
+                bufsz = bufsz + (bufsz >> 2) + sizeof(d);
+            }
+            memcpy(buf + buflen, d, bytes);
+            buflen += bytes;
+        }
+        if (ferror(stdin))
+            err(1, "Could not read stdin");
+    } else {
+        void *d;
+        if ((errno = rk_undumpdata(argv[0], &d, &bufsz)))
+            err(1, "Could not read %s", argv[0]);
+        buflen = bufsz;
+        buf = d;
+    }
+
+    if (decode_flag) {
+        unsigned char *d;
+
+        if (buflen == bufsz) {
+            unsigned char *tmp;
+
+            if ((tmp = realloc(buf, bufsz + 1)) == NULL)
+                err(1, "Could not decode data");
+            buf = tmp;
+            bufsz++;
+        }
+        buf[buflen] = '\0';
+
+        if ((d = malloc(buflen * 3 / 4 + 4)) == NULL)
+            err(1, "Could not decode data");
+
+        if ((ret = rk_base64_decode((const char *)buf, d)) < 0)
+            err(1, "Could not decode data");
+        if (fwrite(d, ret, 1, stdout) != 1)
+            err(1, "Could not write decoded data");
+        free(d);
+    } else if (buf) { /* buf can be NULL if we read from an empty file */
+        char *e;
+
+        if ((ret = rk_base64_encode(buf, buflen, &e)) < 0)
+            err(1, "Could not encode data");
+        if (fwrite(e, ret, 1, stdout) != 1)
+            err(1, "Could not write decoded data");
+        free(e);
+        if (fwrite("\n", 1, 1, stdout) != 1)
+            err(1, "Could not write decoded data");
+    }
+    free(buf);
+    return 0;
+}
+#endif