sscanf?

[ssharish2005]

Hi, Can anyone help me out in guiding me on how to extract this MAC address from the following string. I dunno how to get ride of this space in sscanf format specifier expression. The regular expression don't seems to fetch things properly.

#include <stdio.h>
int main()
{
    char str[] = "eth0      Link encap:Ethernet  HWaddr 00:80:66:10:C0:4D  inet addr:200.168.1.103  Bcast:200.168.1.255  Mask:255.255.255.0";
    char output[80];
    
    if( sscanf( str, "&#37;*s HWaddr %s %*s", output) == 1)
        printf("%s", output);
    
    getchar();
    return 0;
}

Any guidance would me much appreciated.

Thanks a lot

ssharish

EDIT: The only problem which I tent to have is ti ignore the spaces. For example after eth0 you have got quite a lot of spaces. How would you eliminate those spaces. I tried

while ( sscanf(ptr, "%[^ ]%n", field, &n) == 1 ) 
and
while ( sscanf(ptr, "%[^ ]+%n", field, &n) == 1 ) Something like that

So that I can ignore the spaces.

[Salem]

sscanf doesn't have regular expressions. It has character classes, but even that is just a pale imitation of just one of the things a proper RE parser can do.

For instance, all the first "%*s" matches in your example this "eth0". The whole thing then collapses when the H (of HWaddr) in your format doesn't match the L (of Link) in your input string.

Try something like this, to step over the first part of the string, then parse it.

if ( (p=strstr(str, "HWaddr")) != NULL &&
      sscanf( p, "HWaddr %s", output) == 1)

[ssharish2005]

Salem, thanks for your help. That worked.

ssharish