1 ed7c8e8d 2003-09-30 devnull #include "sam.h"
 2 ed7c8e8d 2003-09-30 devnull 
 3 ed7c8e8d 2003-09-30 devnull static int inerror=FALSE;
 4 ed7c8e8d 2003-09-30 devnull 
 5 ed7c8e8d 2003-09-30 devnull /*
 6 ed7c8e8d 2003-09-30 devnull  * A reasonable interface to the system calls
 7 ed7c8e8d 2003-09-30 devnull  */
 8 ed7c8e8d 2003-09-30 devnull 
 9 ed7c8e8d 2003-09-30 devnull void
10 ed7c8e8d 2003-09-30 devnull resetsys(void)
11 ed7c8e8d 2003-09-30 devnull {
12 ed7c8e8d 2003-09-30 devnull 	inerror = FALSE;
13 ed7c8e8d 2003-09-30 devnull }
14 ed7c8e8d 2003-09-30 devnull 
15 ed7c8e8d 2003-09-30 devnull void
16 ed7c8e8d 2003-09-30 devnull syserror(char *a)
17 ed7c8e8d 2003-09-30 devnull {
18 ed7c8e8d 2003-09-30 devnull 	char buf[ERRMAX];
19 ed7c8e8d 2003-09-30 devnull 
20 ed7c8e8d 2003-09-30 devnull 	if(!inerror){
21 ed7c8e8d 2003-09-30 devnull 		inerror=TRUE;
22 ed7c8e8d 2003-09-30 devnull 		errstr(buf, sizeof buf);
23 ed7c8e8d 2003-09-30 devnull 		dprint("%s: ", a);
24 ed7c8e8d 2003-09-30 devnull 		error_s(Eio, buf);
25 ed7c8e8d 2003-09-30 devnull 	}
26 ed7c8e8d 2003-09-30 devnull }
27 ed7c8e8d 2003-09-30 devnull 
28 ed7c8e8d 2003-09-30 devnull int
29 ed7c8e8d 2003-09-30 devnull Read(int f, void *a, int n)
30 ed7c8e8d 2003-09-30 devnull {
31 ed7c8e8d 2003-09-30 devnull 	char buf[ERRMAX];
32 ed7c8e8d 2003-09-30 devnull 
33 ed7c8e8d 2003-09-30 devnull 	if(read(f, (char *)a, n)!=n) {
34 ed7c8e8d 2003-09-30 devnull 		if (lastfile)
35 ed7c8e8d 2003-09-30 devnull 			lastfile->rescuing = 1;
36 ed7c8e8d 2003-09-30 devnull 		errstr(buf, sizeof buf);
37 ed7c8e8d 2003-09-30 devnull 		if (downloaded)
38 ed7c8e8d 2003-09-30 devnull 			fprint(2, "read error: %s\n", buf);
39 ed7c8e8d 2003-09-30 devnull 		rescue();
40 ed7c8e8d 2003-09-30 devnull 		exits("read");
41 ed7c8e8d 2003-09-30 devnull 	}
42 ed7c8e8d 2003-09-30 devnull 	return n;
43 ed7c8e8d 2003-09-30 devnull }
44 ed7c8e8d 2003-09-30 devnull 
45 ed7c8e8d 2003-09-30 devnull int
46 ed7c8e8d 2003-09-30 devnull Write(int f, void *a, int n)
47 ed7c8e8d 2003-09-30 devnull {
48 ed7c8e8d 2003-09-30 devnull 	int m;
49 ed7c8e8d 2003-09-30 devnull 
50 ed7c8e8d 2003-09-30 devnull 	if((m=write(f, (char *)a, n))!=n)
51 ed7c8e8d 2003-09-30 devnull 		syserror("write");
52 ed7c8e8d 2003-09-30 devnull 	return m;
53 ed7c8e8d 2003-09-30 devnull }
54 ed7c8e8d 2003-09-30 devnull 
55 ed7c8e8d 2003-09-30 devnull void
56 ed7c8e8d 2003-09-30 devnull Seek(int f, long n, int w)
57 ed7c8e8d 2003-09-30 devnull {
58 ed7c8e8d 2003-09-30 devnull 	if(seek(f, n, w)==-1)
59 ed7c8e8d 2003-09-30 devnull 		syserror("seek");
60 ed7c8e8d 2003-09-30 devnull }