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#include <u.h>
#include <libc.h>
#include <bio.h>
#include <auth.h>
#include "imap4d.h"
/*
* query the connection server
*/
char*
csquery(char *attr, char *val, char *rattr)
{
char token[64+4];
char buf[256], *p, *sp;
int fd, n;
if(val == nil || val[0] == 0)
return nil;
fd = open("/net/cs", ORDWR);
if(fd < 0)
return nil;
fprint(fd, "!%s=%s", attr, val);
seek(fd, 0, 0);
snprint(token, sizeof(token), "%s=", rattr);
for(;;){
n = read(fd, buf, sizeof(buf)-1);
if(n <= 0)
break;
buf[n] = 0;
p = strstr(buf, token);
if(p != nil && (p == buf || *(p-1) == 0)){
close(fd);
sp = strchr(p, ' ');
if(sp)
*sp = 0;
p = strchr(p, '=');
if(p == nil)
return nil;
return strdup(p+1);
}
}
close(fd);
return nil;
}
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