ref: 3cd935a51ca42e36e652f5519a2450c34004560a
dir: /lib/c/fgets.c/
#include <stdio.h>
#undef fgets
char *
fgets(char *s, int n, FILE *fp)
{
int ch;
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;
}