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/* $Id: defdist.c 6135 2003-01-19 01:15:40Z rra $
**
*/
#include "config.h"
#include "clibrary.h"
#include <ctype.h>
#include <errno.h>
#include "inn/innconf.h"
#include "libinn.h"
#include "paths.h"
typedef struct _DDENTRY {
char *Pattern;
char *Value;
int Weight;
} DDENTRY;
struct _DDHANDLE {
int Count;
DDENTRY *Entries;
DDENTRY *Current;
};
typedef struct _DDHANDLE DDHANDLE;
struct _DDHANDLE *
DDstart(FILE *FromServer, FILE *ToServer)
{
DDHANDLE *h;
DDENTRY *ep;
FILE *F;
char buff[BUFSIZ];
char *p;
char *q;
char *path;
int i;
int fd;
char *name = NULL;
/* Open the file. */
path = concatpath(innconf->pathetc, _PATH_DISTPATS);
F = fopen(path, "r");
free(path);
if (F == NULL) {
/* Not available locally; try remotely. */
if (FromServer == NULL || ToServer == NULL)
/* We're probably nnrpd running on the server and the
* file isn't installed. Oh well. */
return NULL;
name = concatpath(innconf->pathtmp, _PATH_TEMPACTIVE);
fd = mkstemp(name);
if (fd < 0)
return NULL;
close(fd);
if ((F = CA_listopen(name, FromServer, ToServer,
"distrib.pats")) == NULL)
return NULL;
}
/* Count lines. */
for (i = 0; fgets(buff, sizeof buff, F) != NULL; i++)
continue;
/* Allocate space for the handle. */
if ((h = xmalloc(sizeof(DDHANDLE))) == NULL) {
i = errno;
fclose(F);
if (name != NULL)
unlink(name);
errno = i;
return NULL;
}
h->Count = 0;
h->Current = NULL;
if (i == 0) {
return NULL ;
} else if ((h->Entries = xmalloc(sizeof(DDENTRY) * i)) == NULL) {
i = errno;
free(h);
fclose(F);
if (name != NULL)
unlink(name);
errno = i;
return NULL;
}
fseeko(F, 0, SEEK_SET);
for (ep = h->Entries; fgets(buff, sizeof buff, F) != NULL; ) {
if ((p = strchr(buff, '\n')) != NULL)
*p = '\0';
if (buff[0] == '\0' || buff[0] == '#')
continue;
if ((p = strchr(buff, ':')) == NULL
|| (q = strchr(p + 1, ':')) == NULL)
continue;
*p++ = '\0';
ep->Weight = atoi(buff);
ep->Pattern = xstrdup(p);
q = strchr(ep->Pattern, ':');
*q++ = '\0';
ep->Value = q;
ep++;
}
h->Count = ep - h->Entries;
fclose(F);
if (name != NULL)
unlink(name);
return h;
}
void
DDcheck(DDHANDLE *h, char *group)
{
DDENTRY *ep;
int i;
int w;
if (h == NULL || group == NULL)
return;
w = h->Current ? h->Current->Weight : -1;
for (ep = h->Entries, i = h->Count; --i >= 0; ep++)
if (ep->Weight > w && uwildmat(group, ep->Pattern)) {
h->Current = ep;
w = ep->Weight;
}
}
char *
DDend(DDHANDLE *h)
{
static char NIL[] = "";
char *p;
int i;
DDENTRY *ep;
if (h == NULL) {
p = NIL;
return xstrdup(p);
}
if (h->Current == NULL)
p = NIL;
else
p = h->Current->Value;
p = xstrdup(p);
for (ep = h->Entries, i = h->Count; --i >= 0; ep++)
free(ep->Pattern);
free(h->Entries);
free(h);
return p;
}
#if defined(TEST)
int
main(int ac, char *av[])
{
struct _DDHANDLE *h;
char *p;
FILE *FromServer;
FILE *ToServer;
char buff[SMBUF];
if (NNTPremoteopen(NNTP_PORT, &FromServer, &ToServer, buff) < 0) {
if ((p = strchr(buff, '\n')) != NULL)
*p = '\0';
if ((p = strchr(buff, '\r')) != NULL)
*p = '\0';
if (buff[0])
fprintf(stderr, "%s\n", buff);
else
perror("Can't connect");
exit(1);
}
if ((h = DDstart(FromServer, ToServer)) == NULL)
perror("Init failed, proceeding anyway");
while ((p = *++av) != NULL)
DDcheck(h, p);
p = DDend(h);
printf(">%s<\n", p);
exit(0);
/* NOTREACHED */
}
#endif /* defined(TEST) */
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