#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <unistr.h> /* for u16_to_u8 */
#include "platform.h"
#include "gnunet_common.h"
while (NULL != fgets (line, sizeof (line), f))
{
if ((1 ==
- SSCANF (line, "%*x-%*x %*c%*c%*c%*c %*x %*2u:%*2u %*u%*[ ]%s", dir)) &&
+ SSCANF (line, "%*x-%*x %*c%*c%*c%*c %*x %*2u:%*2u %*u%*[ ]%1023s", dir)) &&
(NULL != (lgu = strstr (dir, "libgnunetutil"))))
{
lgu[0] = '\0';
lnk[size] = '\0';
while ((lnk[size] != '/') && (size > 0))
size--;
+ /* test for being in lib/gnunet/libexec/ */
+ if ( (size > strlen ("/gnunet/libexec/")) &&
+ (0 == strcmp ("/gnunet/libexec/",
+ &lnk[size - strlen ("/gnunet/libexec/")])) )
+ size -= strlen ("gnunet/libexec/");
if ((size < 4) || (lnk[size - 4] != '/'))
{
/* not installed in "/bin/" -- binary path probably useless */
#endif
#if WINDOWS
+
+static HINSTANCE dll_instance;
+
+
+/* GNUNET_util_cl_init() in common_logging.c is preferred.
+ * This function is only for thread-local storage (not used in GNUnet)
+ * and hInstance saving.
+ */
+BOOL WINAPI
+DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
+{
+ switch (fdwReason)
+ {
+ case DLL_PROCESS_ATTACH:
+ dll_instance = hinstDLL;
+ break;
+ case DLL_THREAD_ATTACH:
+ break;
+ case DLL_THREAD_DETACH:
+ break;
+ case DLL_PROCESS_DETACH:
+ break;
+ }
+ return TRUE;
+}
+
+
/**
* Try to determine path with win32-specific function
*
static char *
get_path_from_module_filename ()
{
- wchar_t path[4097];
- char upath[4097];
+ size_t pathlen = 512;
+ DWORD real_pathlen;
wchar_t *idx;
-
- GetModuleFileNameW (NULL, path, sizeof (path) - 1);
- idx = path + wcslen (path);
- while ((idx > path) && (*idx != L'\\') && (*idx != L'/'))
+ wchar_t *modulepath = NULL;
+ char *upath;
+ uint8_t *u8_string;
+ size_t u8_string_length;
+
+ /* This braindead function won't tell us how much space it needs, so
+ * we start at 1024 and double the space up if it doesn't fit, until
+ * it fits, or we exceed the threshold.
+ */
+ do
+ {
+ pathlen = pathlen * 2;
+ modulepath = GNUNET_realloc (modulepath, pathlen * sizeof (wchar_t));
+ SetLastError (0);
+ real_pathlen = GetModuleFileNameW (dll_instance, modulepath, pathlen * sizeof (wchar_t));
+ } while (real_pathlen >= pathlen && pathlen < 16*1024);
+ if (real_pathlen >= pathlen)
+ GNUNET_abort ();
+ /* To be safe */
+ modulepath[real_pathlen] = '\0';
+
+ idx = modulepath + real_pathlen;
+ while ((idx > modulepath) && (*idx != L'\\') && (*idx != L'/'))
idx--;
*idx = L'\0';
- upath[0] = '\0';
- WideCharToMultiByte (CP_UTF8, 0, path, -1, upath, 4097, NULL, NULL);
- return GNUNET_strdup (upath);
+ /* Now modulepath holds full path to the directory where libgnunetutil is.
+ * This directory should look like <GNUNET_PREFIX>/bin or <GNUNET_PREFIX>.
+ */
+ if (wcschr (modulepath, L'/') || wcschr (modulepath, L'\\'))
+ {
+ /* At least one directory component (i.e. we're not in a root directory) */
+ wchar_t *dirname = idx;
+ while ((dirname > modulepath) && (*dirname != L'\\') && (*dirname != L'/'))
+ dirname--;
+ *dirname = L'\0';
+ if (dirname > modulepath)
+ {
+ dirname++;
+ /* Now modulepath holds full path to the parent directory of the directory
+ * where libgnunetutil is.
+ * dirname holds the name of the directory where libgnunetutil is.
+ */
+ if (wcsicmp (dirname, L"bin") == 0)
+ {
+ /* pass */
+ }
+ else
+ {
+ /* Roll back our changes to modulepath */
+ dirname--;
+ *dirname = L'/';
+ }
+ }
+ }
+
+ /* modulepath is GNUNET_PREFIX */
+ u8_string = u16_to_u8 (modulepath, wcslen (modulepath), NULL, &u8_string_length);
+ if (NULL == u8_string)
+ GNUNET_abort ();
+
+ upath = GNUNET_malloc (u8_string_length + 1);
+ memcpy (upath, u8_string, u8_string_length);
+ upath[u8_string_length] = '\0';
+
+ free (u8_string);
+ GNUNET_free (modulepath);
+
+ return upath;
}
#endif
#if LINUX
if (NULL != (ret = get_path_from_proc_maps ()))
return ret;
+ /* try path *first*, before /proc/exe, as /proc/exe can be wrong */
+ if (NULL != (ret = get_path_from_PATH ("gnunet-arm")))
+ return ret;
if (NULL != (ret = get_path_from_proc_exe ()))
return ret;
#endif
static char *
os_get_exec_path ()
{
- char *ret;
+ char *ret = NULL;
#if LINUX
if (NULL != (ret = get_path_from_proc_exe ()))
return ret;
#endif
/* other attempts here */
- return NULL;
+ return ret;
}
execpath[--n] = '\0';
isbasedir = 1;
- if ((n > 5) &&
- ((0 == strcasecmp (&execpath[n - 5], "lib32")) ||
- (0 == strcasecmp (&execpath[n - 5], "lib64"))))
+ if ((n > 6) &&
+ ((0 == strcasecmp (&execpath[n - 6], "/lib32")) ||
+ (0 == strcasecmp (&execpath[n - 6], "/lib64"))))
{
- if (GNUNET_OS_IPK_LIBDIR != dirkind)
+ if ( (GNUNET_OS_IPK_LIBDIR != dirkind) &&
+ (GNUNET_OS_IPK_LIBEXECDIR != dirkind) )
{
/* strip '/lib32' or '/lib64' */
- execpath[n - 5] = '\0';
- n -= 5;
+ execpath[n - 6] = '\0';
+ n -= 6;
}
else
isbasedir = 0;
}
- else if ((n > 3) &&
- ((0 == strcasecmp (&execpath[n - 3], "bin")) ||
- (0 == strcasecmp (&execpath[n - 3], "lib"))))
+ else if ((n > 4) &&
+ ((0 == strcasecmp (&execpath[n - 4], "/bin")) ||
+ (0 == strcasecmp (&execpath[n - 4], "/lib"))))
{
/* strip '/bin' or '/lib' */
- execpath[n - 3] = '\0';
- n -= 3;
+ execpath[n - 4] = '\0';
+ n -= 4;
}
/* in case this was a directory named foo-bin, remove "foo-" */
while ((n > 1) && (execpath[n - 1] == DIR_SEPARATOR))
break;
case GNUNET_OS_IPK_LIBDIR:
if (isbasedir)
+ {
dirname =
DIR_SEPARATOR_STR "lib" DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR;
+ tmp = GNUNET_malloc (strlen (execpath) + strlen (dirname) + 1);
+ sprintf (tmp, "%s%s", execpath, dirname);
+ if ( (GNUNET_YES !=
+ GNUNET_DISK_directory_test (tmp, GNUNET_YES)) &&
+ (4 == sizeof (void *)) )
+ {
+ GNUNET_free (tmp);
+ dirname =
+ DIR_SEPARATOR_STR "lib32" DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR;
+ tmp = GNUNET_malloc (strlen (execpath) + strlen (dirname) + 1);
+ sprintf (tmp, "%s%s", execpath, dirname);
+ }
+ if ( (GNUNET_YES !=
+ GNUNET_DISK_directory_test (tmp, GNUNET_YES)) &&
+ (8 == sizeof (void *)) )
+ {
+ dirname =
+ DIR_SEPARATOR_STR "lib64" DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR;
+ }
+ GNUNET_free (tmp);
+ }
else
dirname = DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR;
break;
DIR_SEPARATOR_STR "share" DIR_SEPARATOR_STR "doc" DIR_SEPARATOR_STR \
"gnunet" DIR_SEPARATOR_STR;
break;
+ case GNUNET_OS_IPK_LIBEXECDIR:
+ if (isbasedir)
+ {
+ dirname =
+ DIR_SEPARATOR_STR "lib" DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR \
+ "libexec" DIR_SEPARATOR_STR;
+ tmp = GNUNET_malloc (strlen (execpath) + strlen (dirname) + 1);
+ sprintf (tmp, "%s%s", execpath, dirname);
+ if ( (GNUNET_YES !=
+ GNUNET_DISK_directory_test (tmp, GNUNET_YES)) &&
+ (4 == sizeof (void *)) )
+ {
+ GNUNET_free (tmp);
+ dirname =
+ DIR_SEPARATOR_STR "lib32" DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR \
+ "libexec" DIR_SEPARATOR_STR;
+ tmp = GNUNET_malloc (strlen (execpath) + strlen (dirname) + 1);
+ sprintf (tmp, "%s%s", execpath, dirname);
+ }
+ if ( (GNUNET_YES !=
+ GNUNET_DISK_directory_test (tmp, GNUNET_YES)) &&
+ (8 == sizeof (void *)) )
+ {
+ dirname =
+ DIR_SEPARATOR_STR "lib64" DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR \
+ "libexec" DIR_SEPARATOR_STR;
+ }
+ GNUNET_free (tmp);
+ }
+ else
+ dirname =
+ DIR_SEPARATOR_STR "gnunet" DIR_SEPARATOR_STR \
+ "libexec" DIR_SEPARATOR_STR;
+ break;
default:
GNUNET_free (execpath);
return NULL;
}
+/**
+ * Given the name of a gnunet-helper, gnunet-service or gnunet-daemon
+ * binary, try to prefix it with the libexec/-directory to get the
+ * full path.
+ *
+ * @param progname name of the binary
+ * @return full path to the binary, if possible, otherwise copy of 'progname'
+ */
+char *
+GNUNET_OS_get_libexec_binary_path (const char *progname)
+{
+ char *libexecdir;
+ char *binary;
+
+ if (DIR_SEPARATOR == progname[0])
+ return GNUNET_strdup (progname);
+ libexecdir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LIBEXECDIR);
+ if (NULL == libexecdir)
+ return GNUNET_strdup (progname);
+ GNUNET_asprintf (&binary,
+ "%s%s",
+ libexecdir,
+ progname);
+ GNUNET_free (libexecdir);
+ return binary;
+}
+
+
/**
* Check whether an executable exists and possibly
* if the suid bit is set on the file.
projects / oweals / gnunet.git / blobdiff