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// $Id: matchlist-initmanually.c,v 1.3 2005/02/01 02:08:20 ensc Exp $ --*- 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 "pathconfig.h"
#include "matchlist.h"
#include "util-io.h"
#include <wait.h>
#include <errno.h>
#include <assert.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#define ENSC_WRAPPERS_UNISTD 1
#define ENSC_WRAPPERS_STDLIB 1
#define ENSC_WRAPPERS_IO 1
#include <wrappers.h>
extern int Global_getVerbosity() PURE CONST;
extern bool Global_doRenew() PURE CONST;
static void
readExcludeListFD(int fd,
char ***files, size_t *size,
char **buf)
{
off_t len;
size_t lines = 0;
char *ptr;
if (fd==-1) return; // todo: message on verbose?
len = Elseek(fd, 0, SEEK_END);
Elseek(fd, 0, SEEK_SET);
*buf = Emalloc(sizeof(*buf) * (len+1));
EreadAll(fd, *buf, len);
(*buf)[len] = '\0';
ptr = *buf;
while ((ptr=strchr(ptr, '\n'))) {
++lines;
++ptr;
}
++lines;
*files = Emalloc(sizeof(**files) * lines);
*size = 0;
ptr = *buf;
while (*ptr) {
char *end_ptr = strchr(ptr, '\n');
assert(*size<lines);
if (end_ptr==0) break;
if (*ptr!='#') {
char *tmp = end_ptr;
do {
*tmp-- = '\0';
} while (tmp>ptr && *tmp==' ');
if (tmp>ptr) (*files)[(*size)++] = ptr;
}
ptr = end_ptr+1;
}
}
static void
readExcludeList(char const *filename,
char ***files, size_t *size,
char **buf)
{
int fd = open(filename, O_RDONLY);
if (fd==-1) return; // todo: message on verbose?
readExcludeListFD(fd, files, size, buf);
Eclose(fd);
}
static void
getConfigfileList(char const *vserver,
char ***files, size_t *size,
char **buf)
{
char tmpname[] = "/tmp/vunify.XXXXXX";
pid_t pid;
int fd = Emkstemp(tmpname);
Eunlink(tmpname);
pid = Efork();
if (pid==0) {
char *args[10];
char const **ptr = (char const **)(args)+0;
Edup2(fd, 1);
//Eclose(0);
if (fd!=1) Eclose(fd);
*ptr++ = VPKG_PROG;
*ptr++ = vserver;
*ptr++ = "get-conffiles";
*ptr = 0;
Eexecv(args[0], args);
}
else {
int status;
if (TEMP_FAILURE_RETRY(wait4(pid, &status, 0,0))==-1) {
perror("wait4()");
exit(1);
}
if (!WIFEXITED(status) || WEXITSTATUS(status)!=0) {
WRITE_MSG(2, "failed to determine configfiles\n");
exit(1);
}
readExcludeListFD(fd, files, size, buf);
Eclose(fd);
}
}
void
MatchList_initManually(struct MatchList *list,
struct MatchVserverInfo const *vserver,
char const *vdir, char const *exclude_file)
{
char *buf[2] = { 0,0 };
char **fixed_files = 0;
size_t fixed_count = 0;
char **expr_files = 0;
size_t expr_count = 0;
if (Global_getVerbosity()>=1) {
WRITE_MSG(1, "Initializing exclude-list for ");
WRITE_STR(1, vdir);
if (vserver!=0) {
WRITE_MSG(1, " (");
WRITE_STR(1, vserver->name);
WRITE_MSG(1, ")");
}
WRITE_MSG(1, "\n");
}
if (vserver && vserver->use_pkgmgmt && Global_doRenew()) {
if (Global_getVerbosity()>=2)
WRITE_MSG(1, " Fetching configuration-file list from packagemanagement\n");
getConfigfileList(vserver->name, &fixed_files, &fixed_count, buf+0);
}
// abuse special values (NULL, empty string) to skip the next step
if (exclude_file && *exclude_file) {
if (Global_getVerbosity()>=6) WRITE_MSG(1, " Reading exclude file\n");
readExcludeList(exclude_file,
&expr_files, &expr_count,
buf+1);
}
MatchList_init(list, vdir, fixed_count + expr_count);
list->buf = Emalloc(sizeof(void *) * 3);
list->buf[0] = buf[0];
list->buf[1] = buf[1];
list->buf[2] = vdir;
list->buf_count = 3;
MatchList_appendFiles(list, 0, fixed_files, fixed_count, false);
MatchList_appendFiles(list, fixed_count, expr_files, expr_count, true);
free(expr_files);
free(fixed_files);
}
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