[uClibc] uClibc and squid

[Piotr Klaban]

Hi,

I've tried to compile squid (both 2.5 and 3.0[beta])
under uClibc. It compiles OK under
http://www.uclibc.org/downloads/root_fs-i386.bz2

but I can not run it because any IP address
from squid.conf is recognized as unsafe:

  2003/08/22 05:55:28| DecodeAddress: unsafe IP address: '0.0.0.0'
  FATAL: DecodeAddress: unsafe IP address

It seems that sscanf function from uClibc (correct?)
does not work properly (or just do not work like glibc,
and squid does not work).
The problematic function sscaf is in src/ACLIP.cc:194 (of squid-3.0)
and lib/safe_inet_addr.c.

Simple test script:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>

int main()
{
    int a1 = 0, a2 = 0, a3 = 0, a4 = 0;
    char x;
    char buf[64];

    snprintf(buf,12,"%s","0.0.0.0");
    if (sscanf(buf, "%d.%d.%d.%d%c", &a1, &a2, &a3, &a4, &x) != 4) {
        fprintf(stderr,"%s scanf to %d\n", buf, sscanf(buf, "%d.%d.%d.%d%c", &a1, &a2, &a3, &a4, &x));
        fprintf(stderr,"%s scanf to %d.%d.%d.%d.%x.%c\n", buf, a1, a2, a3, a4, x, x);
        return -1;
    }
    printf("ok\n");
    return 0;
}

After running the command:
  gcc -Wall -o test test.c
it prints
  ok\n

After:
  gcc -Wall -o test test.c -static
it prints:
  0.0.0.0 scanf to 5
  0.0.0.0 scanf to 0.0.0.0.0.^@

squid always fails and it not depoends on the -static compilation.

Best regards,

-- 
Piotr Klaban