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// $Id: scriptlets.c 1746 2004-10-19 21:11:10Z ensc $ --*- c -*--
// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "vserver-start.h"
#include <pathconfig.h>
#include <lib_internal/command.h>
#include <lib_internal/util.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <unistd.h>
#include <dirent.h>
#define HAS_SUFFIX(STR, LEN, SUF) \
(LEN>sizeof(SUF) && strcmp(STR+LEN-sizeof(SUF), SUF)==0)
static bool
visitFile(char const *fname, char const *vname, char const *style)
{
struct stat st;
struct Command cmd;
if (stat(fname, &st)==-1 ||
!S_ISREG(st.st_mode))
return false;
if ((st.st_mode & 0111)==0) {
WRITE_MSG(2,
"!!!LEGACY ALERT!!!\n"
"The special handling of non-executable scriptlets which allows to\n"
"override environment variables is not supported anymore. This change\n"
"was needed as 'vserver ... start' is done by a native C program now.\n"
"If you need the old functionality please fill a bugreport so that\n"
"workarounds can be found/implemented.\n"
"The file triggering this message was\n"
" '");
WRITE_STR(2, fname);
WRITE_MSG(2, "'\n");
return false;
}
char const *par[] = { fname, style, vname, 0 };
Command_setParams(&cmd, par);
if (!Command_exec(&cmd, true) ||
!Command_wait(&cmd, true)) {
WRITE_MSG(2, "vserver-start: exec('");
WRITE_STR(2, fname);
WRITE_MSG(2, "'): ");
WRITE_STR(2, strerror(cmd.err));
WRITE_MSG(2, "; aborting...\n");
exit(1);
}
if (cmd.rc!=0) {
WRITE_MSG(2, "vserver-start: scriptlet '");
WRITE_STR(2, fname);
WRITE_MSG(2, "' failed; aborting...\n");
exit (1);
}
Command_free(&cmd);
return true;
}
static bool
visitDirentry(PathInfo const *basepath, char const *d_name,
char const *vname,
char const *style)
{
size_t l = strlen(d_name);
char path[basepath->l + l + 1];
char * ptr;
if (isDotfile(d_name) ||
HAS_SUFFIX(d_name, l, ".rpmnew") ||
HAS_SUFFIX(d_name, l, ".rpmsave") ||
HAS_SUFFIX(d_name, l, ".rpmorig") ||
HAS_SUFFIX(d_name, l, ".cfsaved"))
return false;
ptr = Xmemcpy(path, basepath->d, basepath->l);
ptr = Xmemcpy(ptr, d_name, l);
*ptr = '\0';
return visitFile(path, vname, style);
}
static bool
visitPath(PathInfo const *basepath,
char const *vname,
PathInfo const *style)
{
char tmp[basepath->l + style->l + sizeof(".d/")];
PathInfo path = { .d = tmp };
char * ptr;
DIR * dir;
bool did_something = false;
ptr = Xmemcpy(tmp, basepath->d, basepath->l);
ptr = Xmemcpy(ptr, style->d, style->l);
*ptr = '\0';
path.l = ptr-tmp;
did_something = visitFile(path.d, vname, style->d) || did_something;
ptr = Xmemcpy(ptr, ".d/", sizeof(".d/"));
path.l = ptr-tmp;
dir = opendir(tmp);
while (dir) {
struct dirent *ent = readdir(dir);
if (ent==0) break;
did_something = visitDirentry(&path, ent->d_name, vname, style->d) || did_something;
}
if (dir!=0) closedir(dir);
return did_something;
}
void
execScriptlets(PathInfo const *cfgdir, char const *vname, char const *style)
{
char path_buf[MAX(cfgdir->l, sizeof(CONFDIR "/.defaults")) +
sizeof("/scripts/")];
PathInfo basepath = { .d = path_buf };
PathInfo styledir = {
.d = style,
.l = strlen(style)
};
char * ptr;
bool doit = true;
ptr = Xmemcpy(path_buf, cfgdir->d, cfgdir->l);
ptr = Xmemcpy(ptr, "/scripts/", sizeof("/scripts/"));
basepath.l = ptr-path_buf-1;
doit = !visitPath(&basepath, vname, &styledir);
if (doit) {
ptr = Xmemcpy(path_buf, CONFDIR "/.defaults/scripts/",
sizeof(CONFDIR "/.defaults/scripts/"));
basepath.l = ptr-path_buf-1;
doit = !visitPath(&basepath, vname, &styledir);
}
}
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