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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
#include "sam.h"
static int inerror=FALSE;
/*
* A reasonable interface to the system calls
*/
void
resetsys(void)
{
inerror = FALSE;
}
void
syserror(char *a)
{
char buf[ERRMAX];
if(!inerror){
inerror=TRUE;
errstr(buf, sizeof buf);
dprint("%s: ", a);
error_s(Eio, buf);
}
}
int
Read(int f, void *a, int n)
{
char buf[ERRMAX];
if(read(f, (char *)a, n)!=n) {
if (lastfile)
lastfile->rescuing = 1;
errstr(buf, sizeof buf);
if (downloaded)
fprint(2, "read error: %s\n", buf);
rescue();
exits("read");
}
return n;
}
int
Write(int f, void *a, int n)
{
int m;
if((m=write(f, (char *)a, n))!=n)
syserror("write");
return m;
}
void
Seek(int f, long n, int w)
{
if(seek(f, n, w)==-1)
syserror("seek");
}
|
