ref: 5750587d1344416e2a6d6ee1395e250558de97ac
dir: /src/libc/stdio/fgets.c/
#include <stdio.h>
#undef fgets
char *
fgets(char *s, int n, FILE *fp)
{
int ch = 0;
char *t = s;
while (--n > 0 && (ch = getc(fp)) != EOF) {
if ((*t++ = ch) == '\n')
break;
}
if (ch == EOF && s == t)
return NULL;
*t = '\0';
return s;
}