/*
Bacula® - The Network Backup Solution
- Copyright (C) 2000-2008 Free Software Foundation Europe e.V.
+ Copyright (C) 2000-2011 Free Software Foundation Europe e.V.
The main author of Bacula is Kern Sibbald, with contributions from
many others, a complete list can be found in the file AUTHORS.
This program is Free Software; you can redistribute it and/or
- modify it under the terms of version two of the GNU General Public
+ modify it under the terms of version three of the GNU Affero General Public
License as published by the Free Software Foundation and included
in the file LICENSE.
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
+ You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*
* Bacula utility functions are in util.c
*
- * Version $Id$
*/
#include "bacula.h"
-#ifdef HAVE_AIX_OS
-extern "C" int initgroups(const char *,int);
-#endif
-
static pthread_mutex_t timer_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t timer = PTHREAD_COND_INITIALIZER;
return dest;
}
-
+/*
+ * Note: Here the maxlen is the maximum length permitted
+ * stored in dest, while on Unix systems, it is the maximum characters
+ * that may be copied from src.
+ */
char *bstrncat(char *dest, const char *src, int maxlen)
{
- strncat(dest, src, maxlen-1);
+ int len = strlen(dest);
+ if (len < maxlen-1) {
+ strncpy(dest+len, src, maxlen-len-1);
+ }
dest[maxlen-1] = 0;
return dest;
}
+/*
+ * Note: Here the maxlen is the maximum length permitted
+ * stored in dest, while on Unix systems, it is the maximum characters
+ * that may be copied from src.
+ */
char *bstrncat(char *dest, POOL_MEM &src, int maxlen)
{
- strncat(dest, src.c_str(), maxlen-1);
+ int len = strlen(dest);
+ if (len < maxlen-1) {
+ strncpy(dest+len, src.c_str(), maxlen-len-1);
+ }
dest[maxlen-1] = 0;
return dest;
}
{
uint8_t *p = (uint8_t *)str;
int len = 0;
+ if (str == NULL) {
+ return 0;
+ }
while (*p) {
if ((*p & 0xC0) != 0xC0) {
p++;
/*
* Write the state file
*/
+static pthread_mutex_t state_mutex = PTHREAD_MUTEX_INITIALIZER;
+
void write_state_file(char *dir, const char *progname, int port)
{
int sfd;
bool ok = false;
POOLMEM *fname = get_pool_memory(PM_FNAME);
-
+
+ P(state_mutex); /* Only one job at a time can call here */
Mmsg(&fname, "%s/%s.%d.state", dir, progname, port);
/* Create new state file */
unlink(fname);
if (!ok) {
unlink(fname);
}
+ V(state_mutex);
free_pool_memory(fname);
}
-/*
- * Drop to privilege new userid and new gid if non-NULL
- */
-void drop(char *uname, char *gname)
-{
-#if defined(HAVE_PWD_H) && defined(HAVE_GRP_H)
- struct passwd *passw = NULL;
- struct group *group = NULL;
- gid_t gid;
- uid_t uid;
- char username[1000];
-
- Dmsg2(900, "uname=%s gname=%s\n", uname?uname:"NONE", gname?gname:"NONE");
- if (!uname && !gname) {
- return; /* Nothing to do */
- }
-
- if (uname) {
- if ((passw = getpwnam(uname)) == NULL) {
- berrno be;
- Emsg2(M_ERROR_TERM, 0, _("Could not find userid=%s: ERR=%s\n"), uname,
- be.bstrerror());
- }
- } else {
- if ((passw = getpwuid(getuid())) == NULL) {
- berrno be;
- Emsg1(M_ERROR_TERM, 0, _("Could not find password entry. ERR=%s\n"),
- be.bstrerror());
- } else {
- uname = passw->pw_name;
- }
- }
- /* Any OS uname pointer may get overwritten, so save name, uid, and gid */
- bstrncpy(username, uname, sizeof(username));
- uid = passw->pw_uid;
- gid = passw->pw_gid;
- if (gname) {
- if ((group = getgrnam(gname)) == NULL) {
- berrno be;
- Emsg2(M_ERROR_TERM, 0, _("Could not find group=%s: ERR=%s\n"), gname,
- be.bstrerror());
- }
- gid = group->gr_gid;
- }
- if (initgroups(username, gid)) {
- berrno be;
- if (gname) {
- Emsg3(M_ERROR_TERM, 0, _("Could not initgroups for group=%s, userid=%s: ERR=%s\n"),
- gname, username, be.bstrerror());
- } else {
- Emsg2(M_ERROR_TERM, 0, _("Could not initgroups for userid=%s: ERR=%s\n"),
- username, be.bstrerror());
- }
- }
- if (gname) {
- if (setgid(gid)) {
- berrno be;
- Emsg2(M_ERROR_TERM, 0, _("Could not set group=%s: ERR=%s\n"), gname,
- be.bstrerror());
- }
- }
- if (setuid(uid)) {
- berrno be;
- Emsg1(M_ERROR_TERM, 0, _("Could not set specified userid: %s\n"), username);
- }
-#endif
-}
-
-
/* BSDI does not have this. This is a *poor* simulation */
#ifndef HAVE_STRTOLL
long long int
return escaped_path;
}
+
+#if HAVE_BACKTRACE && HAVE_GCC
+#include <cxxabi.h>
+#include <execinfo.h>
+void stack_trace()
+{
+ const size_t max_depth = 100;
+ size_t stack_depth;
+ void *stack_addrs[max_depth];
+ char **stack_strings;
+
+ stack_depth = backtrace(stack_addrs, max_depth);
+ stack_strings = backtrace_symbols(stack_addrs, stack_depth);
+
+ for (size_t i = 3; i < stack_depth; i++) {
+ size_t sz = 200; /* just a guess, template names will go much wider */
+ char *function = (char *)actuallymalloc(sz);
+ char *begin = 0, *end = 0;
+ /* find the parentheses and address offset surrounding the mangled name */
+ for (char *j = stack_strings[i]; *j; ++j) {
+ if (*j == '(') {
+ begin = j;
+ } else if (*j == '+') {
+ end = j;
+ }
+ }
+ if (begin && end) {
+ *begin++ = '\0';
+ *end = '\0';
+ /* found our mangled name, now in [begin, end] */
+
+ int status;
+ char *ret = abi::__cxa_demangle(begin, function, &sz, &status);
+ if (ret) {
+ /* return value may be a realloc() of the input */
+ function = ret;
+ } else {
+ /* demangling failed, just pretend it's a C function with no args */
+ strncpy(function, begin, sz);
+ strncat(function, "()", sz);
+ function[sz-1] = '\0';
+ }
+ Pmsg2(000, " %s:%s\n", stack_strings[i], function);
+
+ } else {
+ /* didn't find the mangled name, just print the whole line */
+ Pmsg1(000, " %s\n", stack_strings[i]);
+ }
+ actuallyfree(function);
+ }
+ actuallyfree(stack_strings); /* malloc()ed by backtrace_symbols */
+}
+#else /* HAVE_BACKTRACE && HAVE_GCC */
+void stack_trace() {}
+#endif /* HAVE_BACKTRACE && HAVE_GCC */
projects / bacula / bacula / blobdiff