static int recover_currenttmp(struct sdirs *sdirs)
{
struct stat statp;
logp("Found currenttmp symlink\n");
if(stat(sdirs->currenttmp, &statp))
{
logp("But currenttmp is not pointing at something valid.\n");
logp("Deleting it.\n");
return unlink_w(sdirs->currenttmp, __func__);
}
if(!lstat(sdirs->current, &statp))
{
if(S_ISLNK(statp.st_mode))
{
logp("But current symlink already exists!\n");
if(!stat(sdirs->current, &statp))
{
logp("And current symlink points at something valid.\n");
logp("Deleting currenttmp.\n");
return unlink_w(sdirs->currenttmp, __func__);
}
else
{
logp("But current symlink is not pointing at something valid.\n");
logp("Replacing current with currenttmp.\n");
return do_rename(sdirs->currenttmp,
sdirs->current);
}
}
else
{
logp("But current already exists and is not a symlink!\n");
logp("Giving up.\n");
return -1;
}
}
else
{
logp("Renaming currenttmp to current\n");
return do_rename(sdirs->currenttmp, sdirs->current);
}
return 0;
}
static int recover_currenttmp(struct sdirs *sdirs)
{
logp("Found currenttmp symlink\n");
switch(is_lnk_valid(sdirs->currenttmp))
{
case 0:
logp("But currenttmp is not pointing at something valid.\n");
logp("Deleting it.\n");
return unlink_w(sdirs->currenttmp, __func__);
case -1:
return -1;
}
switch(is_lnk(sdirs->current))
{
case 0:
logp("But current already exists and is not a symlink!\n");
logp("Giving up.\n");
return -1;
case 1:
logp("But current symlink already exists!\n");
switch(is_lnk_valid(sdirs->current))
{
case 0:
logp("But current symlink is not pointing at something valid.\n");
logp("Replacing current with currenttmp.\n");
return do_rename(sdirs->currenttmp,
sdirs->current);
case 1:
logp("And current symlink points at something valid.\n");
logp("Deleting currenttmp.\n");
return unlink_w(sdirs->currenttmp, __func__);
default:
return -1;
}
default:
logp("Renaming currenttmp to current\n");
return do_rename(sdirs->currenttmp, sdirs->current);
}
}