Commit of build_consolidation branch

Squashed into one commit (see branch for details of the evolution of the
branch).

This brings gpcl6 and gxps into the Ghostscript build system, and a shared
set of graphics library object files for all the interpreters.

Also, brings the same configuration options to the pcl and xps products as we
have for Ghostscript.

1 files changed, 142 insertions, 0 deletions

diff --git a/cups/libs/cups/md5passwd.c b/cups/libs/cups/md5passwd.c
new file mode 100644
index 000000000..135282c50
--- /dev/null
+++ b/cups/libs/cups/md5passwd.c
@@ -0,0 +1,142 @@
+/*
+ * "$Id: md5passwd.c 10996 2013-05-29 11:51:34Z msweet $"
+ *
+ *   MD5 password support for CUPS.
+ *
+ *   Copyright 2007-2010 by Apple Inc.
+ *   Copyright 1997-2005 by Easy Software Products.
+ *
+ *   These coded instructions, statements, and computer programs are the
+ *   property of Apple Inc. and are protected by Federal copyright
+ *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
+ *   which should have been included with this file.  If this file is
+ *   file is missing or damaged, see the license at "http://www.cups.org/".
+ *
+ *   This file is subject to the Apple OS-Developed Software exception.
+ *
+ * Contents:
+ *
+ *   httpMD5()       - Compute the MD5 sum of the username:group:password.
+ *   httpMD5Nonce()  - Combine the MD5 sum of the username, group, and password
+ *                     with the server-supplied nonce value.
+ *   httpMD5String() - Convert an MD5 sum to a character string.
+ */
+
+/*
+ * Include necessary headers...
+ */
+
+#include "http-private.h"
+#include "string-private.h"
+
+
+/*
+ * 'httpMD5()' - Compute the MD5 sum of the username:group:password.
+ */
+
+char *					/* O - MD5 sum */
+httpMD5(const char *username,		/* I - User name */
+        const char *realm,		/* I - Realm name */
+        const char *passwd,		/* I - Password string */
+	char       md5[33])		/* O - MD5 string */
+{
+  _cups_md5_state_t	state;		/* MD5 state info */
+  unsigned char		sum[16];	/* Sum data */
+  char			line[256];	/* Line to sum */
+
+
+ /*
+  * Compute the MD5 sum of the user name, group name, and password.
+  */
+
+  snprintf(line, sizeof(line), "%s:%s:%s", username, realm, passwd);
+  _cupsMD5Init(&state);
+  _cupsMD5Append(&state, (unsigned char *)line, (int)strlen(line));
+  _cupsMD5Finish(&state, sum);
+
+ /*
+  * Return the sum...
+  */
+
+  return (httpMD5String(sum, md5));
+}
+
+
+/*
+ * 'httpMD5Final()' - Combine the MD5 sum of the username, group, and password
+ *                    with the server-supplied nonce value, method, and
+ *                    request-uri.
+ */
+
+char *					/* O - New sum */
+httpMD5Final(const char *nonce,		/* I - Server nonce value */
+             const char *method,	/* I - METHOD (GET, POST, etc.) */
+	     const char *resource,	/* I - Resource path */
+             char       md5[33])	/* IO - MD5 sum */
+{
+  _cups_md5_state_t	state;		/* MD5 state info */
+  unsigned char		sum[16];	/* Sum data */
+  char			line[1024];	/* Line of data */
+  char			a2[33];		/* Hash of method and resource */
+
+
+ /*
+  * First compute the MD5 sum of the method and resource...
+  */
+
+  snprintf(line, sizeof(line), "%s:%s", method, resource);
+  _cupsMD5Init(&state);
+  _cupsMD5Append(&state, (unsigned char *)line, (int)strlen(line));
+  _cupsMD5Finish(&state, sum);
+  httpMD5String(sum, a2);
+
+ /*
+  * Then combine A1 (MD5 of username, realm, and password) with the nonce
+  * and A2 (method + resource) values to get the final MD5 sum for the
+  * request...
+  */
+
+  snprintf(line, sizeof(line), "%s:%s:%s", md5, nonce, a2);
+
+  _cupsMD5Init(&state);
+  _cupsMD5Append(&state, (unsigned char *)line, (int)strlen(line));
+  _cupsMD5Finish(&state, sum);
+
+  return (httpMD5String(sum, md5));
+}
+
+
+/*
+ * 'httpMD5String()' - Convert an MD5 sum to a character string.
+ */
+
+char *					/* O - MD5 sum in hex */
+httpMD5String(const unsigned char *sum,	/* I - MD5 sum data */
+              char                md5[33])
+					/* O - MD5 sum in hex */
+{
+  int		i;			/* Looping var */
+  char		*md5ptr;		/* Pointer into MD5 string */
+  static const char hex[] = "0123456789abcdef";
+					/* Hex digits */
+
+
+ /*
+  * Convert the MD5 sum to hexadecimal...
+  */
+
+  for (i = 16, md5ptr = md5; i > 0; i --, sum ++)
+  {
+    *md5ptr++ = hex[*sum >> 4];
+    *md5ptr++ = hex[*sum & 15];
+  }
+
+  *md5ptr = '\0';
+
+  return (md5);
+}
+
+
+/*
+ * End of "$Id: md5passwd.c 10996 2013-05-29 11:51:34Z msweet $".
+ */