search string in string

/*
 author: sid
 search arg 2 in arg 1
 */

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

int getword(FILE *f, char *word)
{
    int ch;
    while(!isspace(ch = fgetc(f)) && ch != EOF)
        *word++ = ch;
    *word = '\0';
    return ch;
}

int main(int argc, char **argv)
{
    if(argc != 3)
    {
        printf("usage %s: <hay_string> <needle_string>\n",argv[0]);
        return;
    }

    char word[100];
    int wc = 0;
    int found = 0;
    int i = 0;
    for(; i < strlen(argv[1]); i++)
    {
        if(isspace(argv[1][i]))
        {
            word[wc] = '\0';
            if(strstr(word,argv[2]))
                found++;
            wc = 0;
        }
        word[wc++] = argv[1][i];
    }

    printf("%s found %d times\n",argv[2],found);
}