Adding upstream version 5.2.15.upstream/5.2.15upstream

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

1 files changed, 259 insertions, 0 deletions

diff --git a/lib/sh/strtol.c b/lib/sh/strtol.c
new file mode 100644
index 0000000..c839a97
--- /dev/null
+++ b/lib/sh/strtol.c
@@ -0,0 +1,259 @@
+/* strtol - convert string representation of a number into a long integer value. */
+
+/* Copyright (C) 1991,92,94,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#if !HAVE_STRTOL
+
+#include <chartypes.h>
+#include <errno.h>
+
+#ifndef errno
+extern int errno;
+#endif
+
+#ifndef __set_errno
+#  define __set_errno(Val) errno = (Val)
+#endif
+
+#ifdef HAVE_LIMITS_H
+#  include <limits.h>
+#endif
+
+#include <typemax.h>
+
+#include <stdc.h>
+#include <bashansi.h>
+
+#ifndef NULL
+#  define NULL 0
+#endif
+
+/* Nonzero if we are defining `strtoul' or `strtoull', operating on
+   unsigned integers.  */
+#ifndef UNSIGNED
+#  define UNSIGNED 0
+#  define INT LONG int
+#else
+#  define INT unsigned LONG int
+#endif
+
+#if UNSIGNED
+#  ifdef QUAD
+#    define strtol strtoull
+#  else
+#    define strtol strtoul
+#  endif
+#else
+#  ifdef QUAD
+#    define strtol strtoll
+#  endif
+#endif
+
+/* If QUAD is defined, we are defining `strtoll' or `strtoull',
+   operating on `long long ints.  */
+
+#ifdef QUAD
+#  define LONG long long
+#  define STRTOL_LONG_MIN LLONG_MIN
+#  define STRTOL_LONG_MAX LLONG_MAX
+#  define STRTOL_ULONG_MAX ULLONG_MAX
+#else	/* !QUAD */
+#  define LONG long
+#  define STRTOL_LONG_MIN LONG_MIN
+#  define STRTOL_LONG_MAX LONG_MAX
+#  define STRTOL_ULONG_MAX ULONG_MAX
+#endif
+
+/* Convert NPTR to an `unsigned long int' or `long int' in base BASE.
+   If BASE is 0 the base is determined by the presence of a leading
+   zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal.
+   If BASE is < 2 or > 36, it is no longer reset to 10; EINVAL is returned.
+   If ENDPTR is not NULL, a pointer to the character after the last
+   one converted is stored in *ENDPTR.  */
+
+INT
+strtol (nptr, endptr, base)
+     const char *nptr;
+     char **endptr;
+     int base;
+{
+  int negative;
+  register unsigned LONG int cutoff;
+  register unsigned int cutlim;
+  register unsigned LONG int i;
+  register const char *s;
+  register unsigned char c;
+  const char *save, *end;
+  int overflow;
+
+  if (base < 0 || base == 1 || base > 36)
+    {
+      __set_errno (EINVAL);
+      return 0;
+    }
+
+  save = s = nptr;
+
+  /* Skip white space.  */
+  while (ISSPACE ((unsigned char)*s))
+    ++s;
+  if (*s == '\0')
+    goto noconv;
+
+  /* Check for a sign.  */
+  if (*s == '-' || *s == '+')
+    {
+      negative = (*s == '-');
+      ++s;
+    }
+  else
+    negative = 0;
+
+  /* Recognize number prefix and if BASE is zero, figure it out ourselves.  */
+  if (*s == '0')
+    {
+      if ((base == 0 || base == 16) && TOUPPER ((unsigned char) s[1]) == 'X')
+	{
+	  s += 2;
+	  base = 16;
+	}
+      else if (base == 0)
+	base = 8;
+    }
+  else if (base == 0)
+    base = 10;
+
+  /* Save the pointer so we can check later if anything happened.  */
+  save = s;
+
+  end = NULL;
+
+  cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base;
+  cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base;
+
+  overflow = 0;
+  i = 0;
+  c = *s;
+  if (sizeof (long int) != sizeof (LONG int))
+    {
+      unsigned long int j = 0;
+      unsigned long int jmax = ULONG_MAX / base;
+
+      for (;c != '\0'; c = *++s)
+	{
+	  if (s == end)
+	    break;
+	  if (DIGIT (c))
+	    c -= '0';
+	  else if (ISALPHA (c))
+	    c = TOUPPER (c) - 'A' + 10;
+	  else
+	    break;
+
+	  if ((int) c >= base)
+	    break;
+	  /* Note that we never can have an overflow.  */
+	  else if (j >= jmax)
+	    {
+	      /* We have an overflow.  Now use the long representation.  */
+	      i = (unsigned LONG int) j;
+	      goto use_long;
+	    }
+	  else
+	    j = j * (unsigned long int) base + c;
+	}
+
+      i = (unsigned LONG int) j;
+    }
+  else
+    for (;c != '\0'; c = *++s)
+      {
+	if (s == end)
+	  break;
+	if (DIGIT (c))
+	  c -= '0';
+	else if (ISALPHA (c))
+	  c = TOUPPER (c) - 'A' + 10;
+	else
+	  break;
+	if ((int) c >= base)
+	  break;
+	/* Check for overflow.  */
+	if (i > cutoff || (i == cutoff && c > cutlim))
+	  overflow = 1;
+	else
+	  {
+	  use_long:
+	    i *= (unsigned LONG int) base;
+	    i += c;
+	  }
+      }
+
+  /* Check if anything actually happened.  */
+  if (s == save)
+    goto noconv;
+
+  /* Store in ENDPTR the address of one character
+     past the last character we converted.  */
+  if (endptr != NULL)
+    *endptr = (char *) s;
+
+#if !UNSIGNED
+  /* Check for a value that is within the range of
+     `unsigned LONG int', but outside the range of `LONG int'.  */
+  if (overflow == 0
+      && i > (negative
+	      ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
+	      : (unsigned LONG int) STRTOL_LONG_MAX))
+    overflow = 1;
+#endif
+
+  if (overflow)
+    {
+      __set_errno (ERANGE);
+#if UNSIGNED
+      return STRTOL_ULONG_MAX;
+#else
+      return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX;
+#endif
+    }
+
+  /* Return the result of the appropriate sign.  */
+  return negative ? -i : i;
+
+noconv:
+  /* We must handle a special case here: the base is 0 or 16 and the
+     first two characters are '0' and 'x', but the rest are no
+     hexadecimal digits.  This is no error case.  We return 0 and
+     ENDPTR points to the `x`.  */
+  if (endptr != NULL)
+    {
+      if (save - nptr >= 2 && TOUPPER ((unsigned char) save[-1]) == 'X' && save[-2] == '0')
+	*endptr = (char *) &save[-1];
+      else
+	/*  There was no number to convert.  */
+	*endptr = (char *) nptr;
+    }
+
+  return 0L;
+}
+
+#endif /* !HAVE_STRTOL */