This commit was manufactured by cvs2svn to create tag 'guikachu-0_9'.guikachu-0_9

svn path=/tags/guikachu-0_9/; revision=12724

1 files changed, 0 insertions, 389 deletions

diff --git a/camel/camel-lock-helper.c b/camel/camel-lock-helper.c
deleted file mode 100644
index 7cb381eae0..0000000000
--- a/camel/camel-lock-helper.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
- *
- * Copyright (C) 2001 Ximian Inc.
- *
- * Authors: Michael Zucchi <notzed@ximian.com>
- *
- * 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; either version 2 of the
- * License, or (at your option) any later version.
- *
- * 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
- */
-
-/* lock helper process */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <errno.h>
-
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <signal.h>
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <utime.h>
-
-#include <time.h>
-
-#define SETEUID_SAVES (1)
-
-/* we try and include as little as possible */
-
-#include "camel-lock-helper.h"
-#include "camel-lock.h"
-
-#define d(x)
-
-/* keeps track of open locks */
-struct _lock_info {
-	struct _lock_info *next;
-	uid_t uid;
-	int id;
-	int depth;
-	time_t stamp;		/* when last updated */
-	char path[1];
-};
-
-static int lock_id = 0;
-static struct _lock_info *lock_info_list;
-static uid_t lock_root_uid = -1;
-static uid_t lock_real_uid = -1;
-
-/* utility functions */
-
-static int read_n(int fd, void *buffer, int inlen)
-{
-	char *p = buffer;
-	int len, left = inlen;
-
-	do {
-		len = read(fd, p, left);
-		if (len == -1) {
-			if (errno != EINTR)
-				return -1;
-		} else {
-			left -= len;
-			p += len;
-		}
-	} while (left > 0 && len != 0);
-
-	return inlen - left;
-}
-
-static int write_n(int fd, void *buffer, int inlen)
-{
-	char *p = buffer;
-	int len, left = inlen;
-
-	do {
-		len = write(fd, p, left);
-		if (len == -1) {
-			if (errno != EINTR)
-				return -1;
-		} else {
-			left -= len;
-			p += len;
-		}
-	} while (left > 0);
-
-	return inlen;
-}
-
-void
-camel_exception_setv (CamelException *ex, ExceptionId id, const char *format, ...)
-{
-	;
-}
-
-void
-camel_exception_clear (CamelException *exception)
-{
-	;
-}
-
-char *gettext (const char *msgid);
-
-char *
-gettext (const char *msgid)
-{
-	return NULL;
-}
-
-static int lock_path(const char *path, guint32 *lockid)
-{
-	struct _lock_info *info = NULL;
-	int res = CAMEL_LOCK_HELPER_STATUS_OK;
-	struct stat st;
-
-	d(fprintf(stderr, "locking path '%s' id = %d\n", path, lock_id));
-
-	/* check to see if we have it locked already, make the lock 'recursive' */
-	/* we could also error i suppose, but why bother */
-	info = lock_info_list;
-	while (info) {
-		if (!strcmp(info->path, path)) {
-			info->depth++;
-			return CAMEL_LOCK_HELPER_STATUS_OK;
-		}
-		info = info->next;
-	}
-
-	/* check we are allowed to lock it, we must own it, be able to write to it, and it has to exist */
-	if (stat(path, &st) == -1
-	    || st.st_uid != getuid()
-	    || !S_ISREG(st.st_mode)
-	    || (st.st_mode & 0400) == 0) {
-		return CAMEL_LOCK_HELPER_STATUS_INVALID;
-	}
-
-	info = malloc(sizeof(*info) + strlen(path));
-	if (info == NULL) {
-		res = CAMEL_LOCK_HELPER_STATUS_NOMEM;
-		goto fail;
-	}
-
-	/* we try the real uid first, and if that fails, try the 'root id' */
-	if (camel_lock_dot(path, NULL) == -1) {
-#ifdef SETEUID_SAVES
-		if (lock_real_uid != lock_root_uid) {
-			if (seteuid(lock_root_uid) != -1) {
-				if (camel_lock_dot(path, NULL) == -1) {
-					seteuid(lock_real_uid);
-					res = CAMEL_LOCK_HELPER_STATUS_SYSTEM;
-					goto fail;
-				}
-				seteuid(lock_real_uid);
-			} else {
-				res = CAMEL_LOCK_HELPER_STATUS_SYSTEM;
-				goto fail;
-			}
-		} else {
-			res = CAMEL_LOCK_HELPER_STATUS_SYSTEM;
-			goto fail;
-		}
-#else
-		res = CAMEL_LOCK_HELPER_STATUS_SYSTEM;
-		goto fail;
-#endif
-	} else {
-		info->uid = lock_real_uid;
-	}
-
-	strcpy(info->path, path);
-	info->id = lock_id;
-	info->depth = 1;
-	info->next = lock_info_list;
-	info->stamp = time(0);
-	lock_info_list = info;
-
-	if (lockid)
-		*lockid = lock_id;
-
-	lock_id++;
-
-	d(fprintf(stderr, "lock ok\n"));
-
-	return res;
-fail:
-	d(fprintf(stderr, "lock failed\n"));
-
-	if (info)
-		free(info);
-
-	return res;
-}
-
-static int unlock_id(guint32 lockid)
-{
-	struct _lock_info *info, *p;
-
-	d(fprintf(stderr, "unlocking id '%d'\n", lockid));
-
-	p = (struct _lock_info *)&lock_info_list;
-	info = p->next;
-	while (info) {
-		if (info->id == lockid) {
-			d(fprintf(stderr, "found id %d path '%s'\n", lockid, info->path));
-			info->depth--;
-			if (info->depth <= 0) {
-#ifdef SETEUID_SAVES
-				if (info->uid != lock_real_uid) {
-					seteuid(lock_root_uid);
-					camel_unlock_dot(info->path);
-					seteuid(lock_real_uid);
-				} else
-#endif
-					camel_unlock_dot(info->path);
-
-				p->next = info->next;
-				free(info);
-			}
-
-			return CAMEL_LOCK_HELPER_STATUS_OK;
-		}
-		p = info;
-		info = info->next;
-	}
-
-	d(fprintf(stderr, "unknown id asked to be unlocked %d\n", lockid));
-	return CAMEL_LOCK_HELPER_STATUS_PROTOCOL;
-}
-
-static void lock_touch(const char *path)
-{
-	char *name;
-
-	/* we could also check that we haven't had our lock stolen from us here */
-
-	name = alloca(strlen(path) + 10);
-	sprintf(name, "%s.lock", path);
-
-	d(fprintf(stderr, "Updating lock %s\n", name));
-	utime(name, NULL);
-}
-
-static void setup_process(void)
-{
-	struct sigaction sa;
-	sigset_t sigset;
-	
-	/* ignore sigint/sigio */
-	sa.sa_handler = SIG_IGN;
-	sigemptyset (&sa.sa_mask);
-	sa.sa_flags = 0;
-	
-	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGIO);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_UNBLOCK, &sigset, NULL);
-	
-	sigaction (SIGIO, &sa, NULL);
-	sigaction (SIGINT, &sa, NULL);
-	
-	/* FIXME: add more sanity checks/setup here */
-
-#ifdef SETEUID_SAVES
-	/* here we change to the real user id, this is probably not particularly
-	   portable so may need configure checks */
-	lock_real_uid = getuid();
-	lock_root_uid = geteuid();
-	if (lock_real_uid != lock_root_uid)
-		seteuid(lock_real_uid);
-#endif
-}
-
-int main(int argc, char **argv)
-{
-	struct _CamelLockHelperMsg msg;
-	int len;
-	int res;
-	char *path;
-	fd_set rset;
-	struct timeval tv;
-	struct _lock_info *info;
-
-	setup_process();
-
-	do {
-		/* do a poll/etc, so we can refresh the .locks as required ... */
-		FD_ZERO(&rset);
-		FD_SET(STDIN_FILENO, &rset);
-
-		/* check the minimum timeout we need to refresh the next oldest lock */
-		if (lock_info_list) {
-			time_t now = time(0);
-			time_t left;
-			time_t delay = CAMEL_DOT_LOCK_REFRESH;
-
-			info = lock_info_list;
-			while (info) {
-				left = CAMEL_DOT_LOCK_REFRESH - (now - info->stamp);
-				left = MAX(left, 0);
-				delay = MIN(left, delay);
-				info = info->next;
-			}
-
-			tv.tv_sec = delay;
-			tv.tv_usec = 0;
-		}
-		
-		d(fprintf(stderr, "lock helper waiting for input\n"));
-		if (select(STDIN_FILENO+1, &rset, NULL, NULL, lock_info_list?&tv:NULL) == -1) {
-			if (errno == EINTR)
-				break;
-
-			continue;
-		}
-
-		/* did we get a timeout?  scan for any locks that need updating */
-		if (!FD_ISSET(STDIN_FILENO, &rset)) {
-			time_t now = time(0);
-			time_t left;
-
-			d(fprintf(stderr, "Got a timeout, checking locks\n"));
-
-			info = lock_info_list;
-			while (info) {
-				left = (now - info->stamp);
-				if (left >= CAMEL_DOT_LOCK_REFRESH) {
-					lock_touch(info->path);
-					info->stamp = now;
-				}
-				info = info->next;
-			}
-			
-			continue;
-		}
-
-
-		len = read_n(STDIN_FILENO, &msg, sizeof(msg));
-		if (len == 0)
-			break;
-
-		res = CAMEL_LOCK_HELPER_STATUS_PROTOCOL;
-		if (len == sizeof(msg) && msg.magic == CAMEL_LOCK_HELPER_MAGIC) {
-			switch(msg.id) {
-			case CAMEL_LOCK_HELPER_LOCK:
-				res = CAMEL_LOCK_HELPER_STATUS_NOMEM;
-				path = malloc(msg.data+1);
-				if (path != NULL) {
-					res = CAMEL_LOCK_HELPER_STATUS_PROTOCOL;
-					len = read_n(STDIN_FILENO, path, msg.data);
-					if (len == msg.data) {
-						path[len] = 0;
-						res = lock_path(path, &msg.data);
-					}
-					free(path);
-				}
-				break;
-			case CAMEL_LOCK_HELPER_UNLOCK:
-				res = unlock_id(msg.data);
-				break;
-			}
-		}
-		d(fprintf(stderr, "returning result %d\n", res));
-		msg.id = res;
-		msg.magic = CAMEL_LOCK_HELPER_RETURN_MAGIC;
-		write_n(STDOUT_FILENO, &msg, sizeof(msg));
-	} while (1);
-
-	d(fprintf(stderr, "parent exited, clsoing down remaining id's\n"));
-	while (lock_info_list)
-		unlock_id(lock_info_list->id);
-
-	return 0;
-}