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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h> // rename
#include "buffer.h"
#include "byte.h"
#include "getln.h"
#include "logmsg.h"
#include "open.h"
#include "stralloc.h"
#define WHO "setmaillist"
void usage()
{
logmsg(WHO, 100, USAGE, "setmaillist list.bin list.tmp");
}
stralloc line = {0};
int match;
char *fnbin;
char *fntmp;
int fd;
char buf[1024];
buffer bo;
void writeerr()
{
logmsg(WHO, 111, FATAL, B("unable to write to: ", fntmp));
}
static void out(char *s, int len)
{
if (buffer_put(&bo, s, len) == -1) writeerr();
}
int main(int argc, char **argv)
{
umask(033);
fnbin = argv[1];
if (!fnbin) usage();
fntmp = argv[2];
if (!fntmp) usage();
fd = open_trunc(fntmp);
if (fd == -1) logmsg(WHO, 111, FATAL, B("unable to create: ", fntmp));
buffer_init(&bo, write, fd, buf, sizeof(buf));
do {
if (getln(buffer_0small, &line, &match, '\n') == -1)
logmsg(WHO, 111, FATAL, "unable to read input: ");
while (line.len) {
if (line.s[line.len - 1] != '\n')
if (line.s[line.len - 1] != ' ')
if (line.s[line.len - 1] != '\t') break;
--line.len;
}
if (byte_chr(line.s, line.len, '\0') != line.len) logmsg(WHO, 111, FATAL, "NUL in input");
if (line.len) {
if (line.s[0] != '#') {
if ((line.s[0] == '.') || (line.s[0] == '/')) {
out(line.s, line.len);
out("", 1);
} else {
if (line.len > 800) logmsg(WHO, 111, FATAL, "addresses must be under 800 bytes");
if (line.s[0] != '&') out("&", 1);
out(line.s, line.len);
out("", 1);
}
}
}
} while (match);
if (buffer_flush(&bo) == -1) writeerr();
if (fsync(fd) == -1) writeerr();
if (close(fd) == -1) writeerr(); /* NFS stupidity */
if (rename(fntmp, fnbin) == -1) logmsg(WHO, 111, FATAL, B("unable to move ", fntmp, " to: ", fnbin));
_exit(0);
}
|
