在str1中查找str2,若匹配，返回位置，否则返回-1
程序输入以q结束

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

#define N 100

int main(void) {
   
    int k;               
    int i,j;
    char str1[N], str2[N];  
   
    int strsearch(char str1[], char str2[]);
   
    /* 输入字符串给str1和str2, 当输入q时程序结束*/
    while (1) {
          scanf("%s", str1);
          if (strcmp(str1, "q") == 0) break;
          scanf("%s", str2);
          k = strsearch(str1, str2);
          printf("str1 = %s,str2 = %s, k = %d\n", str1, str2, k);
    }
 
    exit(0);
}

int strsearch(char str1[], char str2[]) {
   
    int i,j;
    int len1;   //str1's length
    int len2;   //str2's length
    int p;      
   
    len1 = strlen(str1);
    len2 = strlen(str2);
   
  
     for (i = 0; i <= len1 - len2; i++) {
            
        p = i;
        
        for (j = 0; j < len2; j++) {
            if (_____________________________) {
                p = -1;
                break;
            }
        }   
        
        if (________________________________)
            return p;
               
    }
}

请帮忙做一下上面的两个空，谢谢

。。。明显作业了

只是自己一时没考虑明白，现在做出来了！！！