simple grep in c

simple-grep.c

/**
 * simple grep in c
 */
#include <stdio.h>
#define MAXLINE 1000

int getOneLine(char line[], int max);
int strindex(char source[], char searchfor[]);
char pattern[] = "ould";

int main() {
    char line[MAXLINE];
    int found = 0;
    
    while (getOneLine(line, MAXLINE) > 0)
        if (strindex(line, pattern) >= 0) {
            printf("%s\n", line);
            found++;
        }
    return found;;;
}

int getOneLine(char s[], int lim) {
    int c = 0, i = 0;
    
    
    while(--lim > 0 && (c = getchar()) !=EOF && c != '\n')
        s[i++] = c;
    if (c == '\n')
        s[i++] = c;
    s[i] = '\0';
    
    return i;
}

int strindex(char s[], char t[]) {
    int i, j, k;
    
    for (i = 0; s[i] != '\0'; i++) {
        for (j=i, k=0; t[k]!='\0' && s[j]==t[k]; j++, k++)
            ;
        if (k > 0 && t[k] == '\0')
            return i;
    }
    return -1;
}