C语言问题 使用make构建代码

从流中读取至多小于 size 的字符并将它们存储到 s 指向的缓冲区中。阅读在 EOF 或换行符后停止。如果读取换行符，则将其存储到缓冲区中。终止空字节（'\0'）存储在缓冲区中的最后一个字符之后

#include <stdio.h>

#include "get_string.h"

// print a line from stream using fgetc (only)
// reads  in at  most one less than size characters from stream and stores them into the
// buffer pointed to by s.  Reading stops after an EOF or a newline.  If a newline is read, it  is
// stored  into  the buffer.  A terminating null byte ('\0') is stored after the last character in the buffer.
void get_string(char *s, int size, FILE *stream) {

    // PUT YOUR CODE HERE

}

#include <stdio.h>
#include "get_string.h"
// print a line from stream using fgetc (only)
// reads  in at  most one less than size characters from stream and stores them into the
// buffer pointed to by s.  Reading stops after an EOF or a newline.  If a newline is read, it  is
// stored  into  the buffer.  A terminating null byte ('\0') is stored after the last character in the buffer.
void get_string(char *s, int size, FILE *stream) {
      int n=0;
      char ch=fgetc(stream) ;
      while( ch != '\n' && ch != EOF && n<size-1)
      {
          s[n++] = ch;
          ch=fgetc(stream) ;
      }
      s[n] = '\0';
}
int main(int args,char *argv[])
{
    if(args<2)
    {
        printf("error");
        return 0;
    }
    char s[100] = {0};
    FILE *fp = fopen(argv[1],"r");
    if(fp == NULL)
    {
        printf("file open error");
        return 0;
    }
    get_string(s,100,fp);
    fclose(fp);
    printf("%s",s);
    return 0;
}