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#include "error.h"
#include "open.h"
#include "strerr.h"
#include "cdb_make.h"
#include "cdb.h"
#define FATAL "cdbmake: fatal: "
char *fn;
char *fntmp;
void die_usage(void)
{
strerr_die1x(100,"cdbmake: usage: cdbmake f ftmp");
}
void die_write(void)
{
strerr_die4sys(111,FATAL,"unable to create ",fntmp,": ");
}
void die_read(void)
{
strerr_die2sys(111,FATAL,"unable to read input: ");
}
void die_readformat(void)
{
strerr_die2x(111,FATAL,"unable to read input: bad format");
}
inline void get(char *ch)
{
switch(buffer_GETC(buffer_0,ch)) {
case 0: die_readformat();
case -1: die_read();
}
}
static struct cdb_make c;
main(int argc,char **argv)
{
unsigned int klen;
unsigned int dlen;
unsigned int i;
uint32 h;
int fd;
char ch;
if (!*argv) die_usage();
if (!*++argv) die_usage();
fn = *argv;
if (!*++argv) die_usage();
fntmp = *argv;
fd = open_trunc(fntmp);
if (fd == -1) die_write();
if (cdb_make_start(&c,fd) == -1) die_write();
for (;;) {
get(&ch);
if (ch == '\n') break;
if (ch != '+') die_readformat();
klen = 0;
for (;;) {
get(&ch);
if (ch == ',') break;
if ((ch < '0') || (ch > '9')) die_readformat();
if (klen > 429496720) { errno = error_nomem; die_write(); }
klen = klen * 10 + (ch - '0');
}
dlen = 0;
for (;;) {
get(&ch);
if (ch == ':') break;
if ((ch < '0') || (ch > '9')) die_readformat();
if (dlen > 429496720) { errno = error_nomem; die_write(); }
dlen = dlen * 10 + (ch - '0');
}
if (cdb_make_addbegin(&c,klen,dlen) == -1) die_write();
h = CDB_HASHSTART;
for (i = 0;i < klen;++i) {
get(&ch);
if (buffer_PUTC(&c.b,ch) == -1) die_write();
h = cdb_hashadd(h,ch);
}
get(&ch);
if (ch != '-') die_readformat();
get(&ch);
if (ch != '>') die_readformat();
for (i = 0;i < dlen;++i) {
get(&ch);
if (buffer_PUTC(&c.b,ch) == -1) die_write();
}
if (cdb_make_addend(&c,klen,dlen,h) == -1) die_write();
get(&ch);
if (ch != '\n') die_readformat();
}
if (cdb_make_finish(&c) == -1) die_write();
if (fsync(fd) == -1) die_write();
if (close(fd) == -1) die_write(); /* NFS silliness */
if (rename(fntmp,fn) == -1)
strerr_die6sys(111,FATAL,"unable to rename ",fntmp," to ",fn,": ");
_exit(0);
}