Programming

*** glibc detected *** ./VOWELS: free(): invalid pointer: 0x08b82013 ***
======= Backtrace: =========
/lib/libc.so.6[0x1a86c5]
/lib/libc.so.6(cfree+0x59)[0x1a8b09]
./VOWELS[0x804859d]
/lib/libc.so.6(__libc_start_main+0xdc)[0x154e9c]
./VOWELS[0x80483b1]
======= Memory map: ========
0011b000-00136000 r-xp 00000000 08:03 2913187    /lib/ld-2.5.so
00136000-00137000 r-xp 0001a000 08:03 2913187    /lib/ld-2.5.so
00137000-00138000 rwxp 0001b000 08:03 2913187    /lib/ld-2.5.so
0013f000-00292000 r-xp 00000000 08:03 2913207    /lib/libc-2.5.so
00292000-00294000 r-xp 00153000 08:03 2913207    /lib/libc-2.5.so
00294000-00295000 rwxp 00155000 08:03 2913207    /lib/libc-2.5.so
00295000-00298000 rwxp 00295000 00:00 0 
0054d000-00558000 r-xp 00000000 08:03 2913221    /lib/libgcc_s-4.1.2-20080825.so.1
00558000-00559000 rwxp 0000a000 08:03 2913221    /lib/libgcc_s-4.1.2-20080825.so.1
00bdf000-00be0000 r-xp 00bdf000 00:00 0          [vdso]
08048000-08049000 r-xp 00000000 08:03 1275582    /home/ranjith/Cs/VOWELS
08049000-0804a000 rw-p 00000000 08:03 1275582    /home/ranjith/Cs/VOWELS
08b82000-08ba3000 rw-p 08b82000 00:00 0          [heap]
b7fbf000-b7fc1000 rw-p b7fbf000 00:00 0 
b7fdc000-b7fde000 rw-p b7fdc000 00:00 0 
bff5d000-bff72000 rw-p bffe9000 00:00 0          [stack]
Aborted

int a,e,i,o,u,non;
int main()
{       char *input=(char*)malloc(160);
        printf("Enter a String of any lenngth...\n");
        scanf("%s",input);
        while(*input != '\0'){
                switch(*input)
                {
                        case 'a': a++;break;
                        case 'e': e++;break;
                        case 'i': i++;break;
                        case 'o': o++;break;
                        case 'u': u++;break;
                        default : non++;break;
                }
                input++;
        }
        printf("Vowels list appeared as below:\n");
        printf("\tA\tE\tI\tO\tU\tNON-VOWLES\n");
        printf("%8d%8d%8d%8d%8d%8d\n",a,e,i,o,u,non);
        free(input);    
}