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User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.1)
Gecko/20020823 Netscape/7.0

Description of problem:
The program below fails with a SIGSEGV.

$ cat t.cpp; uname -a; gcc --version; gcc t.cpp && ./a.out
#include <stdio.h>
#include <stdarg.h>
#include <locale.h>

int foo (char *buf, const char *s, ...)
{
    va_list va;
    va_start (va, s);
    int n = vsprintf (buf, s, va);
    va_end (va);
    return n;
}

int main ()
{
    printf ("glibc %d.%d\n", __GLIBC__, __GLIBC_MINOR__);

    setlocale (LC_ALL, "vi_VN.tcvn");

    const char *a = "";
    const char *b = "Th";

    char buf [256];
    foo (buf, "%s%.*s", a, 2, b);
}

Linux stalwart.cvo.roguewave.com 2.4.18-14smp #1 SMP Wed Sep 4 12:34:47 EDT 2002
i686 i686 i386 GNU/Linux
gcc (GCC) 3.2
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

glibc 2.3
Segmentation fault


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. compile and run the program

    

Additional info: