-/* Copyright (C) 1995 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+/* Copyright (C) 1995-2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ 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
-Library General Public License for more details.
+ 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 Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
#include <stdlib.h>
/* Conversion table. */
-static const char conv_tab[64] =
+static const char conv_table[64] =
{
'.', '/', '0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B', 'C', 'D',
's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
};
-const char *
-l64a (n)
- long n;
+char *
+l64a (long int n)
{
+ unsigned long int m = (unsigned long int) n;
static char result[7];
int cnt;
- result[6] = '\0';
+ /* The standard says that only 32 bits are used. */
+ m &= 0xffffffff;
- for (cnt = 5; cnt >= 0; --cnt)
+ 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] = n & 0x3f;
- n >>= 6;
+ result[cnt] = conv_table[m & 0x3f];
+ m >>= 6;
}
+ result[cnt] = '\0';
return result;
}