/* * Copyright 1987, 1988 by the Massachusetts Institute of Technology. * For copying and distribution information, please see the file * . * * from: fgetst.c,v 4.0 89/01/23 10:08:31 jtkohl Exp $ * $Id$ */ #if 0 #ifndef lint static char rcsid[] = "$Id$"; #endif /* lint */ #endif #include /* * fgetst takes a file descriptor, a character pointer, and a count. * It reads from the file it has either read "count" characters, or * until it reads a null byte. When finished, what has been read exists * in "s". If "count" characters were actually read, the last is changed * to a null, so the returned string is always null-terminated. fgetst * returns the number of characters read, including the null terminator. */ int fgetst(f, s, n) FILE *f; register char *s; int n; { register int count = n; int ch; /* NOT char; otherwise you don't see EOF */ while ((ch = getc(f)) != EOF && ch && --count) { *s++ = ch; } *s = '\0'; return (n - count); }