Subversion Repositories planix.SVN

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
#include <u.h>
2 
#include <libc.h>
3 
#include <ctype.h>
4 
#include <bio.h>
5 
#include "authcmdlib.h"
6 
 
7 
/*
8 
 * get the date in the format yyyymmdd
9 
 */
10 
Tm
11 
getdate(char *d)
12 
{
13 
	Tm date;
14 
	int i;
15 
 
16 
	date.year = date.mon = date.mday = 0;
17 
	date.hour = date.min = date.sec = 0;
18 
	for(i = 0; i < 8; i++)
19 
		if(!isdigit(d[i]))
20 
			return date;
21 
	date.year = (d[0]-'0')*1000 + (d[1]-'0')*100 + (d[2]-'0')*10 + d[3]-'0';
22 
	date.year -= 1900;
23 
	d += 4;
24 
	date.mon = (d[0]-'0')*10 + d[1]-'0' - 1;
25 
	d += 2;
26 
	date.mday = (d[0]-'0')*10 + d[1]-'0';
27 
	date.yday = 0;
28 
	return date;
29 
}
30 
 
31 
long
32 
getexpiration(char *db, char *u)
33 
{
34 
	char buf[Maxpath];
35 
	char prompt[128];
36 
	char cdate[32];
37 
	Tm date;
38 
	ulong secs, now;
39 
	int n, fd;
40 
 
41 
	/* read current expiration (if any) */
42 
	snprint(buf, sizeof buf, "%s/%s/expire", db, u);
43 
	fd = open(buf, OREAD);
44 
	buf[0] = 0;
45 
	if(fd >= 0){
46 
		n = read(fd, buf, sizeof(buf)-1);
47 
		if(n > 0)
48 
			buf[n-1] = 0;
49 
		close(fd);
50 
	}
51 
 
52 
	if(buf[0]){
53 
		if(strncmp(buf, "never", 5)){
54 
			secs = atoi(buf);
55 
			memmove(&date, localtime(secs), sizeof(date));
56 
			snprint(buf, sizeof buf, "%4.4d%2.2d%2.2d",
57 
				date.year+1900, date.mon+1, date.mday);
58 
		} else
59 
			buf[5] = 0;
60 
	} else
61 
		strcpy(buf, "never");
62 
	snprint(prompt, sizeof prompt,
63 
		"Expiration date (YYYYMMDD or never)[return = %s]: ", buf);
64 
 
65 
	now = time(0);
66 
	for(;;){
67 
		readln(prompt, cdate, sizeof cdate, 0);
68 
		if(*cdate == 0)
69 
			return -1;
70 
		if(strcmp(cdate, "never") == 0)
71 
			return 0;
72 
		date = getdate(cdate);
73 
		secs = tm2sec(&date);
74 
		if(secs > now && secs < now + 2*365*24*60*60)
75 
			break;
76 
		print("expiration time must fall between now and 2 years from now\n");
77 
	}
78 
	return secs;
79 
}