77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
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#include <u.h>
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#include <libc.h>
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#include <ctype.h>
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#include <bio.h>
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#include <authsrv.h>
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#include "authcmdlib.h"
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/*
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* get the date in the format yyyymmdd
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*/
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Tm
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getdate(char *d)
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{
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Tm date;
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int i;
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memset(&date, 0, sizeof(date));
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for(i = 0; i < 8; i++)
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if(!isdigit(d[i]))
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return date;
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date.year = (d[0]-'0')*1000 + (d[1]-'0')*100 + (d[2]-'0')*10 + d[3]-'0';
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date.year -= 1900;
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d += 4;
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date.mon = (d[0]-'0')*10 + d[1]-'0' - 1;
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d += 2;
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date.mday = (d[0]-'0')*10 + d[1]-'0';
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return date;
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}
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int32_t
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getexpiration(char *db, char *u)
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{
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char buf[Maxpath];
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char prompt[128];
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char cdate[32];
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Tm date;
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uint32_t secs, now;
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int n, fd;
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/* read current expiration (if any) */
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snprint(buf, sizeof buf, "%s/%s/expire", db, u);
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fd = open(buf, OREAD);
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buf[0] = 0;
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if(fd >= 0){
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n = read(fd, buf, sizeof(buf)-1);
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if(n > 0)
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buf[n-1] = 0;
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close(fd);
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}
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if(buf[0]){
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if(strncmp(buf, "never", 5)){
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secs = atoi(buf);
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memmove(&date, localtime(secs), sizeof(date));
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sprint(buf, "%4.4d%2.2d%2.2d", date.year+1900, date.mon+1, date.mday);
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} else
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buf[5] = 0;
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} else
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strcpy(buf, "never");
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sprint(prompt, "Expiration date (YYYYMMDD or never)[return = %s]: ", buf);
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now = time(0);
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for(;;){
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readln(prompt, cdate, sizeof cdate, 0);
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if(*cdate == 0)
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return -1;
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if(strcmp(cdate, "never") == 0)
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return 0;
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date = getdate(cdate);
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secs = tm2sec(&date);
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if(secs > now && secs < now + 2*365*24*60*60)
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break;
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print("expiration time must fall between now and 2 years from now\n");
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}
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return secs;
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}
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