Attachment 1089 Details for Bug 1171 – reinvent the "%lld" wheel of printf.

[patch] reinvent the "%lld" wheel of printf.

openssh-config-llong_max.patch (text/plain), 2.10 KB, created by Darren Tucker on 2006-03-03 16:42:17 AEDT

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Creator: Darren Tucker

Created: 2006-03-03 16:42:17 AEDT

Size: 2.10 KB

patch

obsolete

>Index: configure.ac
>===================================================================
>RCS file: /usr/local/src/security/openssh/cvs/openssh_cvs/configure.ac,v
>retrieving revision 1.332
>diff -u -p -r1.332 configure.ac
>--- configure.ac	26 Feb 2006 01:31:49 -0000	1.332
>+++ configure.ac	3 Mar 2006 02:11:21 -0000
>@@ -2132,6 +2132,34 @@ if test -z "$have_llong_max"; then
> #define __USE_ISOC99
> #include <limits.h>
> #define DATA "conftest.llminmax"
>+#define my_abs(a) ((a) < 0 ? ((a) * -1) : (a))
>+
>+/*
>+ * printf in libc on some platforms (eg old Tru64) does not understand %lld so
>+ * we do this the hard way.
>+ */
>+static int
>+fprint_ll(FILE *f, long long n)
>+{
>+	unsigned int i;
>+	int l[sizeof(long long) * 8];
>+
>+	if (n < 0)
>+		if (fprintf(f, "-") < 0)
>+			return -1;
>+	for (i = 0; n != 0; i++) {
>+		l[i] = my_abs(n % 10);
>+		n /= 10;
>+	}
>+	do {
>+		if (fprintf(f, "%d", l[--i]) < 0)
>+			return -1;
>+	} while (i != 0);
>+	if (fprintf(f, " ") < 0)
>+		return -1;
>+	return 0;
>+}
>+
> int main(void) {
> 	FILE *f;
> 	long long i, llmin, llmax = 0;
>@@ -2153,14 +2181,18 @@ int main(void) {
> 
> 	/* Sanity check */
> 	if (llmin + 1 < llmin || llmin - 1 < llmin || llmax + 1 > llmax
>-	    || llmax - 1 > llmax) {
>+	    || llmax - 1 > llmax || llmin == llmax || llmin == 0
>+	    || llmax == 0 || llmax < LONG_MAX || llmin > LONG_MIN) {
> 		fprintf(f, "unknown unknown\n");
> 		exit(2);
> 	}
> 
>-	if (fprintf(f ,"%lld %lld", llmin, llmax) < 0)
>+	if (fprint_ll(f, llmin) < 0)
> 		exit(3);
>-
>+	if (fprint_ll(f, llmax) < 0)
>+		exit(4);
>+	if (fclose(f) < 0)
>+		exit(5);
> 	exit(0);
> }
> 		]])],
>@@ -2168,17 +2200,6 @@ int main(void) {
> 			llong_min=`$AWK '{print $1}' conftest.llminmax`
> 			llong_max=`$AWK '{print $2}' conftest.llminmax`
> 
>-			# snprintf on some Tru64s doesn't understand "%lld"
>-			case "$host" in
>-			alpha-dec-osf*)
>-				if test "x$ac_cv_sizeof_long_long_int" = "x8" &&
>-				  test "x$llong_max" = "xld"; then
>-					llong_min="-9223372036854775808"
>-					llong_max="9223372036854775807"
>-				fi
>-				;;
>-			esac
>-
> 			AC_MSG_RESULT($llong_max)
> 			AC_DEFINE_UNQUOTED(LLONG_MAX, [${llong_max}LL],
> 			    [max value of long long calculated by configure])

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djm: ok+

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