import a64l and l64a from glibc

3 files changed, 127 insertions, 2 deletions

diff --git a/libc/stdlib/Makefile b/libc/stdlib/Makefile
index 40d03521f..210a2eeba 100644
--- a/libc/stdlib/Makefile
+++ b/libc/stdlib/Makefile
@@ -81,12 +81,13 @@ endif
 MSRC2 = atexit.c
 MOBJ2 = atexit.o on_exit.o __exit_handler.o exit.o
 
-CSRC =	abort.c getenv.c mkdtemp.c mktemp.c realpath.c mkstemp.c mkstemp64.c \
+CSRC = \
+	abort.c getenv.c mkdtemp.c mktemp.c realpath.c mkstemp.c mkstemp64.c \
 	rand.c random.c random_r.c setenv.c system.c div.c ldiv.c lldiv.c \
 	getpt.c ptsname.c grantpt.c unlockpt.c gcvt.c drand48-iter.c jrand48.c \
 	jrand48_r.c lrand48.c lrand48_r.c mrand48.c mrand48_r.c nrand48.c \
 	nrand48_r.c rand_r.c srand48.c srand48_r.c seed48.c seed48_r.c \
-	valloc.c posix_memalign.c
+	valloc.c posix_memalign.c a64l.c l64a.c
 ifeq ($(UCLIBC_HAS_FLOATS),y)
 	CSRC += drand48.c drand48_r.c erand48.c erand48_r.c
 endif
diff --git a/libc/stdlib/a64l.c b/libc/stdlib/a64l.c
new file mode 100644
index 000000000..23faf2744
--- /dev/null
+++ b/libc/stdlib/a64l.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.org>, August 1995.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdlib.h>
+
+#define TABLE_BASE 0x2e
+#define TABLE_SIZE 0x4d
+
+#define XX ((char)0x40)
+
+
+static const char a64l_table[TABLE_SIZE] =
+{
+  /* 0x2e */                                                           0,  1,
+  /* 0x30 */   2,  3,  4,  5,  6,  7,  8,  9, 10, 11, XX, XX, XX, XX, XX, XX,
+  /* 0x40 */  XX, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
+  /* 0x50 */  27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, XX, XX, XX, XX, XX,
+  /* 0x60 */  XX, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
+  /* 0x70 */  53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63
+};
+
+
+long int
+a64l (string)
+     const char *string;
+{
+  const char *ptr = string;
+  unsigned long int result = 0ul;
+  const char *end = ptr + 6;
+  int shift = 0;
+
+  do
+    {
+      unsigned index;
+      unsigned value;
+
+      index = *ptr - TABLE_BASE;
+      if ((unsigned int) index >= TABLE_SIZE)
+	break;
+      value = (int) a64l_table[index];
+      if (value == (int) XX)
+	break;
+      ++ptr;
+      result |= value << shift;
+      shift += 6;
+    }
+  while (ptr != end);
+
+  return (long int) result;
+}
diff --git a/libc/stdlib/l64a.c b/libc/stdlib/l64a.c
new file mode 100644
index 000000000..f3a249fed
--- /dev/null
+++ b/libc/stdlib/l64a.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdlib.h>
+
+/* Conversion table.  */
+static const char conv_table[64] =
+{
+  '.', '/', '0', '1', '2', '3', '4', '5',
+  '6', '7', '8', '9', 'A', 'B', 'C', 'D',
+  'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
+  'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
+  'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b',
+  'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+  'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
+  's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
+};
+
+char *
+l64a (n)
+     long int n;
+{
+  unsigned long int m = (unsigned long int) n;
+  static char result[7];
+  int cnt;
+
+  /* The standard says that only 32 bits are used.  */
+  m &= 0xffffffff;
+
+  if (m == 0ul)
+    /* The value for N == 0 is defined to be the empty string. */
+    return (char *) "";
+
+  for (cnt = 0; m > 0ul; ++cnt)
+    {
+      result[cnt] = conv_table[m & 0x3f];
+      m >>= 6;
+    }
+  result[cnt] = '\0';
+
+  return result;
+}