blob: 336170d41966b6b83c653f6c7a0bd3474e4e82fa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/*
* getst.c
*
* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
*
* For copying and distribution information, please see the file
* <mit-copyright.h>.
*/
#include "mit-copyright.h"
#include "krb.h"
#include "krb4int.h"
#include "autoconf.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/*
* getst() takes a file descriptor, a string and a count. It reads
* from the file until either it has read "count" characters, or until
* it reads a null byte. When finished, what has been read exists in
* the given string "s". If "count" characters were actually read, the
* last is changed to a null, so the returned string is always null-
* terminated. getst() returns the number of characters read, including
* the null terminator.
*/
int
getst(fd, s, n)
int fd;
register char *s;
int n;
{
register int count = n;
while (read(fd, s, 1) > 0 && --count)
if (*s++ == '\0')
return (n - count);
*s = '\0';
return (n - count);
}
|
