/*
* See if btree or recno databases in the destination are out of date
* with respect to a single manpath component.
* Return -1 on fatal error, 0 if the source is no longer valid (and
* shouldn't be listed), and 1 if the update went well.
*/
static int
treecpy(char *dst, char *src)
{
size_t dsz, ssz;
int rc;
dsz = strlen(dst);
ssz = strlen(src);
xstrlcat(src, "/", MAXPATHLEN);
xstrlcat(dst, "/", MAXPATHLEN);
xstrlcat(src, MANDOC_IDX, MAXPATHLEN);
xstrlcat(dst, MANDOC_IDX, MAXPATHLEN);
if (-1 == (rc = isnewer(dst, src)))
return(0);
dst[(int)dsz] = src[(int)ssz] = '\0';
if (1 == rc)
return(update(dst, src));
xstrlcat(src, "/", MAXPATHLEN);
xstrlcat(dst, "/", MAXPATHLEN);
xstrlcat(src, MANDOC_DB, MAXPATHLEN);
xstrlcat(dst, MANDOC_DB, MAXPATHLEN);
if (-1 == (rc = isnewer(dst, src)))
return(0);
else if (rc == 0)
return(1);
dst[(int)dsz] = src[(int)ssz] = '\0';
return(update(dst, src));
}
static int
link_unless_newer_exists(const char *name, const char *alias, int rev)
{
again:
if (link(name, alias) == 0) {
printf("link %s->%s\n", alias, name);
return 1;
}
if (errno != EEXIST)
err(2, "link %s->%s", alias, name);
if (isnewer(alias, rev))
return 0;
printf("replacing %s\n", alias);
if (unlink(alias))
err(2, "unlink %s", alias);
goto again;
}
/*
* Pass over the recno database and re-create HTML pages if they're
* found to be out of date.
* Returns -1 on fatal error, 1 on success.
*/
static int
indexhtml(char *src, size_t ssz, char *dst, size_t dsz)
{
DB *idx;
DBT key, val;
int c, rc;
unsigned int fl;
const char *f;
char *d;
char fname[MAXPATHLEN];
pid_t pid;
pid = -1;
xstrlcpy(fname, dst, MAXPATHLEN);
xstrlcat(fname, "/", MAXPATHLEN);
xstrlcat(fname, MANDOC_IDX, MAXPATHLEN);
idx = dbopen(fname, O_RDONLY, 0, DB_RECNO, NULL);
if (NULL == idx) {
perror(fname);
return(-1);
}
fl = R_FIRST;
while (0 == (c = (*idx->seq)(idx, &key, &val, fl))) {
fl = R_NEXT;
/*
* If the record is zero-length, then it's unassigned.
* Skip past these.
*/
if (0 == val.size)
continue;
f = (const char *)val.data + 1;
if (NULL == memchr(f, '\0', val.size - 1))
break;
src[(int)ssz] = dst[(int)dsz] = '\0';
xstrlcat(dst, "/", MAXPATHLEN);
xstrlcat(dst, f, MAXPATHLEN);
xstrlcat(src, "/", MAXPATHLEN);
xstrlcat(src, f, MAXPATHLEN);
if (-1 == (rc = isnewer(dst, src))) {
fprintf(stderr, "%s: File missing\n", f);
break;
} else if (0 == rc)
continue;
d = strrchr(dst, '/');
assert(NULL != d);
*d = '\0';
if (-1 == mkpath(dst, 0755, 0755)) {
perror(dst);
break;
}
*d = '/';
if ( ! filecpy(dst, src))
break;
if (verbose)
printf("%s\n", dst);
}
(*idx->close)(idx);
if (c < 0)
perror(fname);
else if (0 == c)
fprintf(stderr, "%s: Corrupt index\n", fname);
return(1 == c ? 1 : -1);
}