Adding upstream version 3.2.1+dfsg.upstream/3.2.1+dfsgupstream

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

1 files changed, 220 insertions, 0 deletions

diff --git a/src/lib/snprintf.h b/src/lib/snprintf.h
new file mode 100644
index 0000000..c80de2d
--- /dev/null
+++ b/src/lib/snprintf.h
@@ -0,0 +1,220 @@
+/*
+ Unix snprintf implementation.
+ Version 1.4
+
+   This program 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.
+
+   This program 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.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   Revision History:
+		   see header of snprintf.c.
+
+format:
+  int snprintf(holder, sizeof_holder, format, ...)
+
+Return values:
+  (sizeof_holder - 1)
+
+
+ THANKS(for the patches and ideas):
+     Miles Bader
+     Cyrille Rustom
+     Jacek Slabocewiz
+     Mike Parker(mouse)
+
+Alain Magloire: alainm@rcsm.ee.mcgill.ca
+*/
+
+#ifndef HAVE_VSNPRINTF
+
+RCSIDH(snprintf_h, "$Id$")
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#include <stdlib.h>    /* for atoi() */
+#include <ctype.h>
+
+#define PRIVATE static
+#define PUBLIC
+
+/*
+ * For the FLOATING POINT FORMAT :
+ *  the challenge was finding a way to
+ *  manipulate the Real numbers without having
+ *  to resort to mathematical function(it
+ *  would require to link with -lm) and not
+ *  going down to the bit pattern(not portable)
+ *
+ *  so a number, a real is:
+
+      real = integral + fraction
+
+      integral = ... + a(2)*10^2 + a(1)*10^1 + a(0)*10^0
+      fraction = b(1)*10^-1 + b(2)*10^-2 + ...
+
+      where:
+       0 <= a(i) => 9
+       0 <= b(i) => 9
+
+    from then it was simple math
+ */
+
+/*
+ * size of the buffer for the integral part
+ * and the fraction part
+ */
+#define MAX_INT  99 + 1 /* 1 for the null */
+#define MAX_FRACT 29 + 1
+
+/*
+ * If the compiler supports (long long)
+ */
+#ifndef LONG_LONG
+# define LONG_LONG long long
+/*# define LONG_LONG int64_t*/
+#endif
+
+/*
+ * If the compiler supports (long double)
+ */
+#ifndef LONG_DOUBLE
+# define LONG_DOUBLE long double
+/*# define LONG_DOUBLE double*/
+#endif
+
+/*
+ * numtoa() uses PRIVATE buffers to store the results,
+ * So this function is not reentrant
+ */
+#define itoa(n) numtoa(n, 10, 0, (char **)0)
+#define otoa(n) numtoa(n, 8, 0, (char **)0)
+#define htoa(n) numtoa(n, 16, 0, (char **)0)
+#define dtoa(n, p, f) numtoa(n, 10, p, f)
+
+#define SWAP_INT(a,b) {int t; t = (a); (a) = (b); (b) = t;}
+
+/* this struct holds everything we need */
+struct DATA {
+  int length;
+  char *holder;
+  int counter;
+#ifdef __STDC__
+  char const *pf;
+#else
+  char *pf;
+#endif
+/* FLAGS */
+  int width, precision;
+  int justify; char pad;
+  int square, space, star_w, star_p, a_long, a_longlong;
+};
+
+/* signature of the functions */
+#ifdef __STDC__
+/* the floating point stuff */
+  PRIVATE double pow_10(int);
+  PRIVATE int log_10(double);
+  PRIVATE double integral(double, double *);
+  PRIVATE char * numtoa(double, int, int, char **);
+
+/* for the format */
+  PRIVATE void conv_flag(char *, struct DATA *);
+  PRIVATE void floating(struct DATA *, double);
+  PRIVATE void exponent(struct DATA *, double);
+  PRIVATE void decimal(struct DATA *, double);
+  PRIVATE void octal(struct DATA *, double);
+  PRIVATE void hexa(struct DATA *, double);
+  PRIVATE void strings(struct DATA *, char *);
+
+#else
+/* the floating point stuff */
+  PRIVATE double pow_10();
+  PRIVATE int log_10();
+  PRIVATE double integral();
+  PRIVATE char * numtoa();
+
+/* for the format */
+  PRIVATE void conv_flag();
+  PRIVATE void floating();
+  PRIVATE void exponent();
+  PRIVATE void decimal();
+  PRIVATE void octal();
+  PRIVATE void hexa();
+  PRIVATE void strings();
+#endif
+
+/* those are defines specific to snprintf to hopefully
+ * make the code clearer :-)
+ */
+#define RIGHT 1
+#define LEFT  0
+#define NOT_FOUND -1
+#define FOUND 1
+#define MAX_FIELD 15
+
+/* the conversion flags */
+#define isflag(c) ((c) == '#' || (c) == ' ' || \
+		   (c) == '*' || (c) == '+' || \
+		   (c) == '-' || (c) == '.' || \
+		   isdigit(c))
+
+/* round off to the precision */
+#define ROUND(d, p) \
+	    (d < 0.) ? \
+	     d - pow_10(-(p)->precision) * 0.5 : \
+	     d + pow_10(-(p)->precision) * 0.5
+
+/* set default precision */
+#define DEF_PREC(p) \
+	    if ((p)->precision == NOT_FOUND) \
+	      (p)->precision = 6
+
+/* put a char */
+#define PUT_CHAR(c, p) \
+	    if ((p)->counter < (p)->length) { \
+	      *(p)->holder++ = (c); \
+	      (p)->counter++; \
+	    }
+
+#define PUT_PLUS(d, p) \
+	    if ((d) > 0. && (p)->justify == RIGHT) \
+	      PUT_CHAR('+', p)
+
+#define PUT_SPACE(d, p) \
+	    if ((p)->space == FOUND && (d) > 0.) \
+	      PUT_CHAR(' ', p)
+
+/* pad right */
+#define PAD_RIGHT(p) \
+	    if ((p)->width > 0 && (p)->justify != LEFT) \
+	      for (; (p)->width > 0; (p)->width--) \
+		 PUT_CHAR((p)->pad, p)
+
+/* pad left */
+#define PAD_LEFT(p) \
+	    if ((p)->width > 0 && (p)->justify == LEFT) \
+	      for (; (p)->width > 0; (p)->width--) \
+		 PUT_CHAR((p)->pad, p)
+
+/* if width and prec. in the args */
+#define STAR_ARGS(p) \
+	    if ((p)->star_w == FOUND) \
+	      (p)->width = va_arg(args, int); \
+	    if ((p)->star_p == FOUND) \
+	      (p)->precision = va_arg(args, int)
+
+#endif /* HAVE_VSNPRINTF */