str2id

#include <stdio.h>
#include <string.h>
#include <math.h>

unsigned create_sign32_const(const char* str_src)
{
     unsigned times, i;
     unsigned sign, tint;
     times = strlen(str_src)/4;
     sign=0;
     for (i=0; i<times; i++){
         sign += *( (unsigned int *) (str_src + i*4) );
     }
     times = times%32;
     sign = (sign<<times)|(sign>>(32-times));
     tint=0;
     strcpy( (char*)(&tint), str_src+i*4);
     sign += tint;
     return sign;
}

int main(int argc, char** argv)
{
    if (argc != 2) {
        printf("usage: str2id string\n");
        return 0;
    }
    char *str = argv[1];
    unsigned id = create_sign32_const(str);
    printf("%u\n", (unsigned)fmod(id,64));
    return 0;
}