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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "runtime.h"
#include "sys_types.h"
void
sys·readfile(string filein, string fileout, bool okout)
{
int32 fd;
byte namebuf[256];
struct stat statbuf;
fileout = nil;
okout = false;
if(filein == nil || filein->len >= sizeof(namebuf))
goto out;
mcpy(namebuf, filein->str, filein->len);
namebuf[filein->len] = '\0';
fd = open(namebuf, 0);
if(fd < 0)
goto out;
if (fstat(fd, &statbuf) < 0)
goto close_out;
if (statbuf.st_size <= 0)
goto close_out;
fileout = mal(sizeof(fileout->len)+statbuf.st_size + 1);
fileout->len = statbuf.st_size;
if (read(fd, fileout->str, statbuf.st_size) != statbuf.st_size) {
fileout = nil;
goto close_out;
}
okout = true;
close_out:
close(fd);
out:
FLUSH(&fileout);
FLUSH(&okout);
}
void
sys·writefile(string filein, string textin, bool okout)
{
int32 fd;
byte namebuf[256];
okout = false;
if(filein == nil || filein->len >= sizeof(namebuf))
goto out;
mcpy(namebuf, filein->str, filein->len);
namebuf[filein->len] = '\0';
fd = open(namebuf, 1|O_CREAT, 0644); // open for write, create if non-existant (sic)
if(fd < 0)
goto out;
if (write(fd, textin->str, textin->len) != textin->len) {
goto close_out;
}
okout = true;
close_out:
close(fd);
out:
FLUSH(&okout);
}
|
