| /* | |
| * fgets.c | |
| * | |
| * This will be very slow due to the implementation of getc(), | |
| * but we don't have anywhere to put characters we don't need from | |
| * the input. | |
| */ | |
| #include <stdio.h> | |
| char *fgets(char *s, int n, FILE *f) | |
| { | |
| int ch; | |
| char *p = s; | |
| while (n > 1) { | |
| ch = getc(f); | |
| if (ch == EOF) { | |
| *p = '\0'; | |
| return NULL; | |
| } | |
| *p++ = ch; | |
| n--; | |
| if (ch == '\n') | |
| break; | |
| } | |
| if (n) | |
| *p = '\0'; | |
| return s; | |
| } |