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/* ISC license. */
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <skalibs/stralloc.h>
#include <skalibs/djbunix.h>
static int rmstar_in_tmp (stralloc *tmp, size_t ipos)
{
size_t tmpbase = tmp->len, tmpstop ;
size_t fnbase = strlen(tmp->s + ipos) ;
size_t i ;
if (sals(tmp->s + ipos, tmp, &i) == -1) return -1 ;
tmpstop = tmp->len ;
if (!stralloc_readyplus(tmp, fnbase + 2 + i)) goto err ;
stralloc_catb(tmp, tmp->s + ipos, fnbase) ;
stralloc_catb(tmp, "/", 1) ;
fnbase = tmp->len ;
for (i = tmpbase ; i < tmpstop ; i += tmp->len - fnbase)
{
size_t n = strlen(tmp->s + i) ;
tmp->len = fnbase ;
stralloc_catb(tmp, tmp->s + i, n+1) ;
if (rm_rf_in_tmp(tmp, tmpstop) == -1) goto err ;
}
tmp->len = tmpbase ;
return 0 ;
err:
tmp->len = tmpbase ;
return -1 ;
}
int rm_rf_in_tmp (stralloc *tmp, size_t ipos)
{
int isadir ;
if (unlink(tmp->s + ipos) == 0) return 0 ;
if (errno == ENOENT) return 0 ;
if ((errno != EISDIR) && (errno != EPERM)) return -1 ;
isadir = errno == EPERM ;
if (rmstar_in_tmp(tmp, ipos) == -1)
{
if (isadir && errno == ENOTDIR) errno = EPERM ;
return -1 ;
}
return rmdir(tmp->s + ipos) ;
}
int rmstar_tmp (char const *dirname, stralloc *tmp)
{
size_t tmpbase = tmp->len ;
if (!stralloc_cats(tmp, dirname)) return -1 ;
if (!stralloc_0(tmp)) goto err ;
if (rmstar_in_tmp(tmp, tmpbase) == -1) goto err ;
tmp->len = tmpbase ;
return 0 ;
err:
tmp->len = tmpbase ;
return -1 ;
}
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