1 files changed, 125 insertions, 0 deletions
diff --git a/src/vsnprintf.c b/src/vsnprintf.c
new file mode 100644
index 00000000..80ce2ebb
--- /dev/null
+++ b/src/vsnprintf.c
@@ -0,0 +1,125 @@
+/* Copyright (c) 1993
+ *      Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ *      Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Copyright (c) 1987 Oliver Laumann
+ *
+ * This program 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 2, 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ ****************************************************************
+ */
+
+
+/* Implementation of vsnprintf() for systems that don't have it
+ * (e.g. Solaris 2.5).  This hasn't been tested much in the context of
+ * Mailman; it was ripped from screen 3.7.6's misc.c file which contains
+ * the above copyright.
+ *
+ * This code has been modified slightly:
+ *
+ * - use prototypes unconditionally
+ * - Don't use macros for stdargs calls
+ * - Reformat to Python C standard
+ *
+ * RMS says it's okay to include this code in Mailman but it should be kept
+ * in a separate file.
+ *
+ * TBD: This file needs a security audit.
+ */
+
+#ifndef HAVE_VSNPRINTF
+#include <strings.h>
+#include <stdarg.h>
+
+int vsnprintf(char* s, size_t n, const char* fmt, va_list stack)
+{
+	char *f, *sf = 0;
+	int i, on, argl = 0;
+	char myf[10], buf[20];
+	char *arg, *myfp;
+
+	on = n;
+	f = (char*)fmt;
+	arg = 0;
+	while (arg || (sf = index(f, '%')) || (sf = f + strlen(f))) {
+		if (arg == 0) {
+			arg = f;
+			argl = sf - f;
+		}
+		if (argl) {
+			i = argl > n - 1 ? n - 1 : argl;
+			strncpy(s, arg, i);
+			s += i;
+			n -= i;
+			if (i < argl) {
+				*s = 0;
+				return on;
+			}
+		}
+		arg = 0;
+		if (sf == 0)
+			continue;
+		f = sf;
+		sf = 0;
+		if (!*f)
+			break;
+		myfp = myf;
+		*myfp++ = *f++;
+		while (((*f >= '0' && *f <='9') || *f == '#')
+		       && myfp - myf < 8)
+		{
+			*myfp++ = *f++;
+		}
+		*myfp++ = *f;
+		*myfp = 0;
+		if (!*f++)
+			break;
+		switch(f[-1])
+		{
+		case '%':
+			arg = "%";
+			break;
+		case 'c':
+		case 'o':
+		case 'd':
+		case 'x':
+			i = va_arg(stack, int);
+			sprintf(buf, myf, i);
+			arg = buf;
+			break;
+		case 's':
+			arg = va_arg(stack, char *);
+			if (arg == 0)
+				arg = "NULL";
+			break;
+		default:
+			arg = "";
+			break;
+		}
+		argl = strlen(arg);
+	}
+	*s = 0;
+	return on - n;
+
+	va_end(stack);
+}
+#endif /* !HAVE_VSNPRINTF */
+
+
+/*
+ * Local Variables:
+ * c-file-style: "python"
+ * End:
+ */