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#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h> // rename
#include "buffer.h"
#include "byte.h"
#include "case.h"
#include "cdbmake.h"
#include "exit.h"
#include "getln.h"
#include "logmsg.h"
#include "open.h"
#include "stralloc.h"
#include "auto_qmail.h"
#define WHO "qmail-newu"
void die_chdir()
{
logmsg(WHO, 110, ERROR, "unable to chdir");
}
void die_nomem()
{
logmsg(WHO, 111, FATAL, "fatal: out of memory");
}
void die_opena()
{
logmsg(WHO, 112, ERROR, "unable to open users/assign");
}
void die_reada()
{
logmsg(WHO, 110, ERROR, "unable to read users/assign");
}
void die_format()
{
logmsg(WHO, 112, ERROR, "bad format in users/assign");
}
void die_opent()
{
logmsg(WHO, 112, ERROR, "unable to open users/assign.cdb.tmp");
}
void die_writet()
{
logmsg(WHO, 112, ERROR, "unable to write users/assign.cdb.tmp");
}
void die_rename()
{
logmsg(WHO, 112, ERROR, "unable to move users/cdb.tmp to users/assign.cdb");
}
struct cdb_make cdb;
stralloc key = {0};
stralloc data = {0};
char inbuf[1024];
buffer bi;
int fd;
int fdtemp;
stralloc line = {0};
int match;
stralloc wildchars = {0};
int main()
{
int i;
int numcolons;
umask(033);
if (chdir(auto_qmail) == -1) die_chdir();
fd = open_read("users/assign");
if (fd == -1) die_opena();
buffer_init(&bi, read, fd, inbuf, sizeof(inbuf));
fdtemp = open_trunc("users/assign.cdb.tmp");
if (fdtemp == -1) die_opent();
if (cdb_make_start(&cdb, fdtemp) == -1) die_writet();
if (!stralloc_copys(&wildchars, "")) die_nomem();
for (;;) {
if (getln(&bi, &line, &match, '\n') != 0) die_reada();
if (line.len && (line.s[0] == '.')) break;
if (!match) die_format();
if (byte_chr(line.s, line.len, '\0') < line.len) die_format();
i = byte_chr(line.s, line.len, ':');
if (i == line.len) die_format();
if (i == 0) die_format();
if (!stralloc_copys(&key, "!")) die_nomem();
if (line.s[0] == '+') {
if (!stralloc_catb(&key, line.s + 1, i - 1)) die_nomem();
case_lowerb(key.s, key.len);
if (i >= 2)
if (byte_chr(wildchars.s, wildchars.len, line.s[i - 1]) == wildchars.len)
if (!stralloc_append(&wildchars, line.s + i - 1)) die_nomem();
} else {
if (!stralloc_catb(&key, line.s + 1, i - 1)) die_nomem();
if (!stralloc_0(&key)) die_nomem();
case_lowerb(key.s, key.len);
}
if (!stralloc_copyb(&data, line.s + i + 1, line.len - i - 1)) die_nomem();
numcolons = 0;
for (i = 0; i < data.len; ++i) {
if (data.s[i] == ':') {
data.s[i] = 0;
if (++numcolons == 6) break;
}
}
if (numcolons < 6) die_format();
data.len = i;
if (cdb_make_add(&cdb, key.s, key.len, data.s, data.len) == -1) die_writet();
}
if (cdb_make_add(&cdb, "", 0, wildchars.s, wildchars.len) == -1) die_writet();
if (cdb_make_finish(&cdb) == -1) die_writet();
if (fsync(fdtemp) == -1) die_writet();
if (close(fdtemp) == -1) die_writet(); /* NFS stupidity */
if (rename("users/assign.cdb.tmp", "users/assign.cdb") == -1) die_rename();
_exit(0);
}
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