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#include <unistd.h>
#include <sys/stat.h>
#include <stdio.h> // rename
#include "stralloc.h"
#include "getln.h"
#include "buffer.h"
#include "cdbmake.h"
#include "exit.h"
#include "open.h"
#include "logmsg.h"
#include "case.h"
#include "byte.h"
#include "auto_qmail.h"
#include "qmail.h"
#define WHO "qmail-newu"
int rename(const char *,const char *); // stdio.h
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[BUFSIZE_LINE];
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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