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/* ISC license. */
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <skalibs/stralloc.h>
#include <skalibs/direntry.h>
#include <skalibs/djbunix.h>
static int rmstarindir (DIR *dir, stralloc *tmp, size_t ipos) /* WARNING: closes dir */
{
size_t tmpbase = tmp->len ;
for (;;)
{
direntry *d ;
errno = 0 ;
d = readdir(dir) ;
if (!d) break ;
if (d->d_name[0] == '.')
if (((d->d_name[1] == '.') && (d->d_name[2] == 0)) || (d->d_name[1] == 0))
continue ;
if (!stralloc_cats(tmp, d->d_name) || !stralloc_0(tmp)) goto closeanderr ;
}
if (errno) goto closeanderr ;
dir_close(dir) ;
{
size_t tmpstop = tmp->len ;
size_t fnbase = strlen(tmp->s + ipos) ;
size_t i = tmpbase ;
if (!stralloc_readyplus(tmp, fnbase+1)) goto err ;
stralloc_catb(tmp, tmp->s + ipos, fnbase) ;
stralloc_catb(tmp, "/", 1) ;
fnbase = tmp->len ;
for (; i < tmpstop ; i += tmp->len - fnbase)
{
size_t n = strlen(tmp->s + i) ;
tmp->len = fnbase ;
if (!stralloc_readyplus(tmp, n+1)) goto err ;
stralloc_catb(tmp, tmp->s + i, n+1) ;
if (rm_rf_in_tmp(tmp, tmpstop) == -1) goto err ;
}
}
tmp->len = tmpbase ;
return 0 ;
closeanderr:
{
int e = errno ;
dir_close(dir) ;
errno = e ;
}
err:
tmp->len = tmpbase ;
return -1 ;
}
int rm_rf_in_tmp (stralloc *tmp, size_t ipos)
{
if (unlink(tmp->s + ipos) == 0) return 0 ;
if (errno == ENOENT) return 0 ;
if ((errno != EISDIR) && (errno != EPERM)) return -1 ;
{
int h = (errno == EPERM) ;
DIR *dir = opendir(tmp->s + ipos) ;
if (!dir)
{
if (h && (errno == ENOTDIR)) errno = EPERM ;
return -1 ;
}
if (rmstarindir(dir, tmp, ipos) == -1) 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 ;
{
DIR *dir = opendir(dirname) ;
if (!dir) goto err ;
if (rmstarindir(dir, tmp, tmpbase) == -1) goto err ;
}
tmp->len = tmpbase ;
return 0 ;
err:
tmp->len = tmpbase ;
return -1 ;
}
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