#include "gnunet_disk_lib.h"
#include "gnunet_scheduler_lib.h"
#include "gnunet_strings_lib.h"
+#include "gnunet_crypto_lib.h"
#include "disk.h"
+#define DEBUG_NPIPE GNUNET_YES
/**
* Block size for IO for copying files.
/**
- * Creates a named pipe/FIFO
- * @param fn name of the named pipe
+ * Creates a named pipe/FIFO and opens it
+ * @param fn pointer to the name of the named pipe or to NULL
* @param flags open flags
* @param perm access permissions
* @return pipe handle on success, NULL on error
*/
struct GNUNET_DISK_FileHandle *
-GNUNET_DISK_npipe_open (const char *fn,
- enum GNUNET_DISK_OpenFlags flags,
- enum GNUNET_DISK_AccessPermissions perm)
+GNUNET_DISK_npipe_create (char **fn,
+ enum GNUNET_DISK_OpenFlags flags,
+ enum GNUNET_DISK_AccessPermissions perm)
{
#ifdef MINGW
struct GNUNET_DISK_FileHandle *ret;
- HANDLE h;
+ HANDLE h = NULL;
DWORD openMode;
char *name;
if (flags & GNUNET_DISK_OPEN_FAILIFEXISTS)
openMode |= FILE_FLAG_FIRST_PIPE_INSTANCE;
- GNUNET_asprintf(&name, "\\\\.\\pipe\\pipename\\%s", fn);
- h = CreateNamedPipe (fn, openMode | FILE_FLAG_OVERLAPPED,
- PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 2, 1, 1, 0, NULL);
- GNUNET_free(name);
- if (h == NULL)
+ while (h == NULL)
{
- SetErrnoFromWinError(GetLastError());
- return NULL;
+ DWORD error_code;
+ name = NULL;
+ if (*fn != NULL)
+ {
+ GNUNET_asprintf(&name, "\\\\.\\pipe\\%.246s", fn);
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Trying to create an instance of named pipe `%s'\n", name);
+#endif
+ h = CreateNamedPipe (name, openMode | FILE_FLAG_OVERLAPPED,
+ PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 2, 1, 1, 0, NULL);
+ }
+ else
+ {
+ GNUNET_asprintf(fn, "\\\\.\\pipe\\gnunet-%llu",
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX));
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Trying to create unique named pipe `%s'\n", *fn);
+#endif
+ h = CreateNamedPipe (*fn, openMode | FILE_FLAG_OVERLAPPED | FILE_FLAG_FIRST_PIPE_INSTANCE,
+ PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 2, 1, 1, 0, NULL);
+ }
+ error_code = GetLastError ();
+ if (name)
+ GNUNET_free(name);
+ /* don't re-set name to NULL yet */
+ if (h == INVALID_HANDLE_VALUE)
+ {
+ SetErrnoFromWinError(error_code);
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Pipe creation have failed because of %d, errno is %d\n", error_code, errno);
+#endif
+ if (name == NULL)
+ {
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Pipe was to be unique, considering re-creation\n");
+#endif
+ GNUNET_free (*fn);
+ *fn = NULL;
+ if (error_code != ERROR_ACCESS_DENIED && error_code != ERROR_PIPE_BUSY)
+ {
+ return NULL;
+ }
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Pipe name was not unique, trying again\n");
+#endif
+ h = NULL;
+ }
+ else
+ return NULL;
+ }
}
+ errno = 0;
ret = GNUNET_malloc(sizeof(*ret));
ret->h = h;
+ ret->type = GNUNET_PIPE;
return ret;
#else
- if (mkfifo(fn, translate_unix_perms(perm)) == -1)
+ if (*fn == NULL)
+ {
+ char dir[] = "/tmp/gnunet-pipe-XXXXXX";
+
+ if (mkdtemp(dir) == NULL)
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "mkdtemp");
+ return NULL;
+ }
+ GNUNET_asprintf(fn, "%s/child-control", dir);
+ }
+
+ if (mkfifo(*fn, translate_unix_perms(perm)) == -1)
{
if ( (errno != EEXIST) ||
(0 != (flags & GNUNET_DISK_OPEN_FAILIFEXISTS)) )
#endif
}
+/**
+ * Opens already existing named pipe/FIFO
+ *
+ * @param fn name of an existing named pipe
+ * @param flags open flags
+ * @param perm access permissions
+ * @return pipe handle on success, NULL on error
+ */
+struct GNUNET_DISK_FileHandle *
+GNUNET_DISK_npipe_open (const char *fn,
+ enum GNUNET_DISK_OpenFlags flags,
+ enum GNUNET_DISK_AccessPermissions perm)
+{
+#ifdef MINGW
+ struct GNUNET_DISK_FileHandle *ret;
+ HANDLE h;
+ DWORD openMode;
+
+ openMode = 0;
+ if (flags & GNUNET_DISK_OPEN_READWRITE)
+ openMode = GENERIC_WRITE | GENERIC_READ;
+ else if (flags & GNUNET_DISK_OPEN_READ)
+ openMode = GENERIC_READ;
+ else if (flags & GNUNET_DISK_OPEN_WRITE)
+ openMode = GENERIC_WRITE;
+
+ h = CreateFile (fn, openMode, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_OVERLAPPED | FILE_READ_ATTRIBUTES, NULL);
+ if (h == INVALID_HANDLE_VALUE)
+ {
+ SetErrnoFromWinError(GetLastError());
+ return NULL;
+ }
+
+ ret = GNUNET_malloc(sizeof(*ret));
+ ret->h = h;
+ ret->type = GNUNET_PIPE;
+
+ return ret;
+#else
+ flags = flags & (~GNUNET_DISK_OPEN_FAILIFEXISTS);
+ return GNUNET_DISK_file_open(fn, flags, perm);
+#endif
+}
+
/**
* Closes a named pipe/FIFO
* @param pipe named pipe
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_os_lib.h"
+#include "gnunet_scheduler_lib.h"
#include "disk.h"
+#define GNUNET_OS_CONTROL_PIPE "GNUNET_OS_CONTROL_PIPE"
+
struct GNUNET_OS_Process
{
pid_t pid;
#if WINDOWS
HANDLE handle;
#endif
+ int sig;
+ struct GNUNET_DISK_FileHandle *control_pipe;
};
static struct GNUNET_OS_Process current_process;
-#if WINDOWS
+/**
+ * This handler is called when there are control data to be read on the pipe
+ */
void
-GNUNET_OS_process_set_handle(struct GNUNET_OS_Process *proc, HANDLE handle)
+GNUNET_OS_parent_control_handler (void *cls,
+ const struct
+ GNUNET_SCHEDULER_TaskContext * tc)
{
- if (proc->handle != NULL)
- CloseHandle (proc->handle);
- proc->handle = handle;
+ struct GNUNET_DISK_FileHandle *control_pipe = (struct GNUNET_DISK_FileHandle *) cls;
+ int sig;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s' invoked because of %d\n", __FUNCTION__, tc->reason);
+
+ if (tc->reason & (GNUNET_SCHEDULER_REASON_SHUTDOWN | GNUNET_SCHEDULER_REASON_TIMEOUT | GNUNET_SCHEDULER_REASON_PREREQ_DONE))
+ {
+ GNUNET_DISK_npipe_close (control_pipe);
+ }
+ else
+ {
+ if (GNUNET_DISK_file_read (control_pipe, &sig, sizeof (sig)) != sizeof (sig))
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "GNUNET_DISK_file_read");
+ GNUNET_DISK_npipe_close (control_pipe);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got control code %d from parent\n", sig);
+ raise (sig);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Re-scheduling the parent control handler pipe\n");
+ GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, control_pipe, GNUNET_OS_parent_control_handler, control_pipe);
+ }
+ }
}
-#endif
+/**
+ * Connects this process to its parent via pipe
+ */
+void
+GNUNET_OS_install_parent_control_handler (void *cls,
+ const struct
+ GNUNET_SCHEDULER_TaskContext * tc)
+{
+ char *env_buf;
+ struct GNUNET_DISK_FileHandle *control_pipe = NULL;
+
+ env_buf = getenv (GNUNET_OS_CONTROL_PIPE);
+ if (env_buf == NULL || strlen (env_buf) <= 0)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Not installing a handler because %s=%s\n", GNUNET_OS_CONTROL_PIPE, env_buf);
+ return;
+ }
+
+ control_pipe = GNUNET_DISK_npipe_open (env_buf, GNUNET_DISK_OPEN_READ,
+ GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE);
+ if (control_pipe == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to open the pipe `%s'\n", env_buf);
+ return;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding parent control handler pipe `%s' to the scheduler\n", env_buf);
+ GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, control_pipe, GNUNET_OS_parent_control_handler, control_pipe);
+}
/**
* Get process structure for current process
int
GNUNET_OS_process_kill (struct GNUNET_OS_Process *proc, int sig)
{
-#if WINDOWS
- if (sig == SIGKILL || sig == SIGTERM)
+#if ENABLE_WINDOWS_WORKAROUNDS
+ int res;
+ int ret;
+
+ ret = GNUNET_DISK_file_write (proc->control_pipe, &sig, sizeof(sig));
+ if (ret != sizeof(sig))
{
- HANDLE h = proc->handle;
- if (NULL == h)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Invalid process information {%d, %08X}\n"),
- proc->pid,
- h);
- return -1;
- }
- if (!TerminateProcess (h, 0))
- {
- SetErrnoFromWinError (GetLastError ());
- return -1;
- }
+ if (errno == ECOMM)
+ /* Child process is not controllable via pipe */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Child process is not controllable, will kill it directly\n");
else
- return 0;
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Failed to write into control pipe , errno is %d\n", errno);
+ res = PLIBC_KILL (proc->pid, sig);
}
- errno = EINVAL;
- return -1;
+ else
+ {
+ struct GNUNET_NETWORK_FDSet *rfds;
+ struct GNUNET_NETWORK_FDSet *efds;
+
+ rfds = GNUNET_NETWORK_fdset_create ();
+ efds = GNUNET_NETWORK_fdset_create ();
+
+ GNUNET_NETWORK_fdset_handle_set (rfds, proc->control_pipe);
+ GNUNET_NETWORK_fdset_handle_set (efds, proc->control_pipe);
+
+ read_next:
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Wrote control code into control pipe, now waiting\n");
+
+ ret = GNUNET_NETWORK_socket_select (rfds, NULL, efds,
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_relative_get_unit (),
+ 5000));
+
+ if (ret < 1 || GNUNET_NETWORK_fdset_handle_isset (efds,
+ proc->control_pipe))
+ {
+ /* Just to be sure */
+ PLIBC_KILL (proc->pid, sig);
+ res = 0;
+ }
+ else
+ {
+ if (GNUNET_DISK_file_read (proc->control_pipe, &ret,
+ sizeof(ret)) != GNUNET_OK)
+ res = PLIBC_KILL (proc->pid, sig);
+
+ /* Child signaled shutdown is in progress */
+ goto read_next;
+ }
+ }
+
+ return res;
#else
return kill (proc->pid, sig);
#endif
void
GNUNET_OS_process_close (struct GNUNET_OS_Process *proc)
{
-#if WINDOWS
+#if ENABLE_WINDOWS_WORKAROUNDS
+ if (proc->control_pipe)
+ GNUNET_DISK_npipe_close (proc->control_pipe);
+#endif
+// FIXME NILS
+#ifdef WINDOWS
if (proc->handle != NULL)
CloseHandle (proc->handle);
-#endif
+#endif
GNUNET_free (proc);
}
+// FIXME NILS
#if WINDOWS
#include "gnunet_signal_lib.h"
return GNUNET_OK;
}
+#if MINGW
+static char *
+CreateCustomEnvTable (char **vars)
+{
+ char *win32_env_table, *ptr, **var_ptr, *result, *result_ptr;
+ size_t tablesize = 0;
+ size_t items_count = 0;
+ size_t n_found = 0, n_var;
+ char *index = NULL;
+ size_t c;
+ size_t var_len;
+ char *var;
+ char *val;
+ win32_env_table = GetEnvironmentStringsA ();
+ if (win32_env_table == NULL)
+ return NULL;
+ for (c = 0, var_ptr = vars; *var_ptr; var_ptr += 2, c++);
+ n_var = c;
+ index = GNUNET_malloc (n_var);
+ for (c = 0; c < n_var; c++)
+ index[c] = 0;
+ for (items_count = 0, ptr = win32_env_table; ptr[0] != 0; items_count++)
+ {
+ size_t len = strlen (ptr);
+ int found = 0;
+ for (var_ptr = vars; *var_ptr; var_ptr++)
+ {
+ var = *var_ptr++;
+ val = *var_ptr;
+ var_len = strlen (var);
+ if (strncmp (var, ptr, var_len) == 0)
+ {
+ found = 1;
+ index[c] = 1;
+ tablesize += var_len + strlen (val) + 1;
+ break;
+ }
+ }
+ if (!found)
+ tablesize += len + 1;
+ ptr += len + 1;
+ }
+ for (n_found = 0, c = 0, var_ptr = vars; *var_ptr; var_ptr++, c++)
+ {
+ var = *var_ptr++;
+ val = *var_ptr;
+ if (index[c] != 1)
+ n_found += strlen (var) + strlen (val) + 1;
+ }
+ result = GNUNET_malloc (tablesize + n_found + 1);
+ for (result_ptr = result, ptr = win32_env_table; ptr[0] != 0;)
+ {
+ size_t len = strlen (ptr);
+ int found = 0;
+ for (c = 0, var_ptr = vars; *var_ptr; var_ptr++, c++)
+ {
+ var = *var_ptr++;
+ val = *var_ptr;
+ var_len = strlen (var);
+ if (strncmp (var, ptr, var_len) == 0)
+ {
+ found = 1;
+ break;
+ }
+ }
+ if (!found)
+ {
+ strcpy (result_ptr, ptr);
+ result_ptr += len + 1;
+ }
+ else
+ {
+ strcpy (result_ptr, var);
+ result_ptr += var_len;
+ strcpy (result_ptr, val);
+ result_ptr += strlen (val) + 1;
+ }
+ ptr += len + 1;
+ }
+ for (c = 0, var_ptr = vars; *var_ptr; var_ptr++, c++)
+ {
+ var = *var_ptr++;
+ val = *var_ptr;
+ var_len = strlen (var);
+ if (index[c] != 1)
+ {
+ strcpy (result_ptr, var);
+ result_ptr += var_len;
+ strcpy (result_ptr, val);
+ result_ptr += strlen (val) + 1;
+ }
+ }
+ FreeEnvironmentStrings (win32_env_table);
+ GNUNET_free (index);
+ *result_ptr = 0;
+ return result;
+}
+#endif
+
/**
* Start a process.
*
const char *filename, ...)
{
va_list ap;
+#if ENABLE_WINDOWS_WORKAROUNDS
+ char *childpipename = NULL;
+ struct GNUNET_DISK_FileHandle *control_pipe = NULL;
+#endif
+ struct GNUNET_OS_Process *gnunet_proc = NULL;
#ifndef MINGW
pid_t ret;
- struct GNUNET_OS_Process *gnunet_proc = NULL;
char **argv;
int argc;
int fd_stdout_write;
int fd_stdin_read;
int fd_stdin_write;
+#if ENABLE_WINDOWS_WORKAROUNDS
+ control_pipe = GNUNET_DISK_npipe_create (&childpipename,
+ GNUNET_DISK_OPEN_WRITE, GNUNET_DISK_PERM_USER_READ |
+ GNUNET_DISK_PERM_USER_WRITE);
+ if (control_pipe == NULL)
+ return NULL;
+#endif
+
argc = 0;
va_start (ap, filename);
while (NULL != va_arg (ap, char *))
if (ret == -1)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "fork");
+#if ENABLE_WINDOWS_WORKAROUNDS
+ GNUNET_DISK_npipe_close (control_pipe);
+#endif
}
else
{
#endif
gnunet_proc = GNUNET_malloc (sizeof (struct GNUNET_OS_Process));
gnunet_proc->pid = ret;
+#if ENABLE_WINDOWS_WORKAROUNDS
+ gnunet_proc->control_pipe = control_pipe;
+#endif
}
GNUNET_free (argv);
+#if ENABLE_WINDOWS_WORKAROUNDS
+ GNUNET_free (childpipename);
+#endif
return gnunet_proc;
}
+#if ENABLE_WINDOWS_WORKAROUNDS
+ setenv (GNUNET_OS_CONTROL_PIPE, childpipename, 1);
+ GNUNET_free (childpipename);
+#endif
+
if (pipe_stdout != NULL)
{
GNUNET_break (0 == close (fd_stdout_read));
char *cmd, *idx;
STARTUPINFO start;
PROCESS_INFORMATION proc;
- struct GNUNET_OS_Process *gnunet_proc = NULL;
HANDLE stdin_handle;
HANDLE stdout_handle;
char path[MAX_PATH + 1];
+ char *our_env[3] = { NULL, NULL, NULL };
+ char *env_block = NULL;
+ char *pathbuf;
+ DWORD pathbuf_len, alloc_len;
+ char *self_prefix;
+ char *bindir;
+ char *libdir;
+ char *ptr;
+ char *non_const_filename;
+
+ /* Search in prefix dir (hopefully - the directory from which
+ * the current module was loaded), bindir and libdir, then in PATH
+ */
+ self_prefix = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_SELF_PREFIX);
+ bindir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_BINDIR);
+ libdir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LIBDIR);
+
+ pathbuf_len = GetEnvironmentVariableA ("PATH", (char *) &pathbuf, 0);
+
+ alloc_len = pathbuf_len + 1 + strlen (self_prefix) + 1 + strlen (bindir) + 1 + strlen (libdir);
+
+ pathbuf = GNUNET_malloc (alloc_len * sizeof (char));
+
+ ptr = pathbuf;
+ ptr += sprintf (pathbuf, "%s;%s;%s;", self_prefix, bindir, libdir);
+ GNUNET_free (self_prefix);
+ GNUNET_free (bindir);
+ GNUNET_free (libdir);
+
+ alloc_len = GetEnvironmentVariableA ("PATH", ptr, pathbuf_len);
+ GNUNET_assert (alloc_len == (pathbuf_len - 1));
+
+ cmdlen = strlen (filename);
+ if (cmdlen < 5 || strcmp (&filename[cmdlen - 4], ".exe") != 0)
+ GNUNET_asprintf (&non_const_filename, "%s.exe", filename);
+ else
+ GNUNET_asprintf (&non_const_filename, "%s", filename);
+
+ /* Check that this is the full path. If it isn't, search. */
+ if (non_const_filename[1] == ':')
+ snprintf (path, sizeof (path) / sizeof (char), "%s", non_const_filename);
+ else if (!SearchPathA (pathbuf, non_const_filename, NULL, sizeof (path) / sizeof (char), path, NULL))
+ {
+ SetErrnoFromWinError (GetLastError ());
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "SearchPath", non_const_filename);
+ GNUNET_free (non_const_filename);
+ GNUNET_free (pathbuf);
+ return NULL;
+ }
+ GNUNET_free (pathbuf);
+ GNUNET_free (non_const_filename);
+
cmdlen = 0;
va_start (ap, filename);
while (NULL != (arg = va_arg (ap, char *)))
- cmdlen = cmdlen + strlen (arg) + 3;
+ {
+ if (cmdlen == 0)
+ cmdlen = cmdlen + strlen (path) + 3;
+ else
+ cmdlen = cmdlen + strlen (arg) + 3;
+ }
va_end (ap);
cmd = idx = GNUNET_malloc (sizeof (char) * (cmdlen + 1));
va_start (ap, filename);
while (NULL != (arg = va_arg (ap, char *)))
- idx += sprintf (idx, "\"%s\" ", arg);
+ {
+ if (idx == cmd)
+ idx += sprintf (idx, "\"%s\" ", path);
+ else
+ idx += sprintf (idx, "\"%s\" ", arg);
+ }
va_end (ap);
memset (&start, 0, sizeof (start));
start.hStdOutput = stdout_handle;
}
- if (32 >= (int) FindExecutableA (filename, NULL, path))
- {
- SetErrnoFromWinError (GetLastError ());
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "FindExecutable", filename);
- return NULL;
- }
+ control_pipe = GNUNET_DISK_npipe_create (&childpipename,
+ GNUNET_DISK_OPEN_WRITE, GNUNET_DISK_PERM_USER_READ |
+ GNUNET_DISK_PERM_USER_WRITE);
+ if (control_pipe == NULL)
+ {
+ GNUNET_free (cmd);
+ GNUNET_free (path);
+ return NULL;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Opened the parent end of the pipe `%s'\n", childpipename);
+
+ GNUNET_asprintf (&our_env[0], "%s=", GNUNET_OS_CONTROL_PIPE);
+ GNUNET_asprintf (&our_env[1], "%s", childpipename);
+ our_env[2] = NULL;
+ env_block = CreateCustomEnvTable (our_env);
+ GNUNET_free (our_env[0]);
+ GNUNET_free (our_env[1]);
if (!CreateProcessA
- (path, cmd, NULL, NULL, TRUE, DETACHED_PROCESS, NULL, NULL, &start,
- &proc))
+ (path, cmd, NULL, NULL, TRUE, DETACHED_PROCESS | CREATE_SUSPENDED,
+ env_block, NULL, &start, &proc))
{
SetErrnoFromWinError (GetLastError ());
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "CreateProcess", path);
+ GNUNET_free (env_block);
+ GNUNET_free (cmd);
return NULL;
}
+ GNUNET_free (env_block);
+
gnunet_proc = GNUNET_malloc (sizeof (struct GNUNET_OS_Process));
gnunet_proc->pid = proc.dwProcessId;
gnunet_proc->handle = proc.hProcess;
+ gnunet_proc->control_pipe = control_pipe;
CreateThread (NULL, 64000, ChildWaitThread, (void *) gnunet_proc, 0, NULL);
+ ResumeThread (proc.hThread);
CloseHandle (proc.hThread);
GNUNET_free (cmd);
GNUNET_OS_start_process_v (const int *lsocks,
const char *filename, char *const argv[])
{
+#if ENABLE_WINDOWS_WORKAROUNDS
+ struct GNUNET_DISK_FileHandle *control_pipe = NULL;
+ char *childpipename = NULL;
+#endif
+
#ifndef MINGW
pid_t ret;
char lpid[16];
int *lscp;
unsigned int ls;
+#if ENABLE_WINDOWS_WORKAROUNDS
+ control_pipe = GNUNET_DISK_npipe_create (&childpipename,
+ GNUNET_DISK_OPEN_WRITE, GNUNET_DISK_PERM_USER_READ |
+ GNUNET_DISK_PERM_USER_WRITE);
+ if (control_pipe == NULL)
+ return NULL;
+#endif
+
lscp = NULL;
ls = 0;
if (lsocks != NULL)
if (ret == -1)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "fork");
+#if ENABLE_WINDOWS_WORKAROUNDS
+ GNUNET_DISK_npipe_close (control_pipe);
+#endif
}
else
{
#endif
gnunet_proc = GNUNET_malloc (sizeof (struct GNUNET_OS_Process));
gnunet_proc->pid = ret;
+#if ENABLE_WINDOWS_WORKAROUNDS
+ gnunet_proc->control_pipe = control_pipe;
+
+#endif
}
GNUNET_array_grow (lscp, ls, 0);
+#if ENABLE_WINDOWS_WORKAROUNDS
+ GNUNET_free (childpipename);
+#endif
return gnunet_proc;
}
+
+#if ENABLE_WINDOWS_WORKAROUNDS
+ setenv (GNUNET_OS_CONTROL_PIPE, childpipename, 1);
+ GNUNET_free (childpipename);
+#endif
+
if (lscp != NULL)
{
/* read systemd documentation... */
STARTUPINFO start;
PROCESS_INFORMATION proc;
int argcount = 0;
- char non_const_filename[MAX_PATH +1];
struct GNUNET_OS_Process *gnunet_proc = NULL;
+ char path[MAX_PATH + 1];
+
+ char *our_env[3] = { NULL, NULL, NULL };
+ char *env_block = NULL;
+ char *pathbuf;
+ DWORD pathbuf_len, alloc_len;
+ char *self_prefix;
+ char *bindir;
+ char *libdir;
+ char *ptr;
+ char *non_const_filename;
+
GNUNET_assert (lsocks == NULL);
- if (32 >= (int) FindExecutableA (filename, NULL, non_const_filename))
+ /* Search in prefix dir (hopefully - the directory from which
+ * the current module was loaded), bindir and libdir, then in PATH
+ */
+ self_prefix = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_SELF_PREFIX);
+ bindir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_BINDIR);
+ libdir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LIBDIR);
+
+ pathbuf_len = GetEnvironmentVariableA ("PATH", (char *) &pathbuf, 0);
+
+ alloc_len = pathbuf_len + 1 + strlen (self_prefix) + 1 + strlen (bindir) + 1 + strlen (libdir);
+
+ pathbuf = GNUNET_malloc (alloc_len * sizeof (char));
+
+ ptr = pathbuf;
+ ptr += sprintf (pathbuf, "%s;%s;%s;", self_prefix, bindir, libdir);
+ GNUNET_free (self_prefix);
+ GNUNET_free (bindir);
+ GNUNET_free (libdir);
+
+ alloc_len = GetEnvironmentVariableA ("PATH", ptr, pathbuf_len);
+ if (alloc_len != pathbuf_len - 1)
+ {
+ GNUNET_free (pathbuf);
+ errno = ENOSYS; /* PATH changed on the fly. What kind of error is that? */
+ return NULL;
+ }
+
+ cmdlen = strlen (filename);
+ if (cmdlen < 5 || strcmp (&filename[cmdlen - 4], ".exe") != 0)
+ GNUNET_asprintf (&non_const_filename, "%s.exe", filename);
+ else
+ GNUNET_asprintf (&non_const_filename, "%s", filename);
+
+ /* Check that this is the full path. If it isn't, search. */
+ if (non_const_filename[1] == ':')
+ snprintf (path, sizeof (path) / sizeof (char), "%s", non_const_filename);
+ else if (!SearchPathA (pathbuf, non_const_filename, NULL, sizeof (path) / sizeof (char), path, NULL))
{
SetErrnoFromWinError (GetLastError ());
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "FindExecutable", filename);
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "SearchPath", non_const_filename);
+ GNUNET_free (non_const_filename);
+ GNUNET_free (pathbuf);
return NULL;
}
+ GNUNET_free (pathbuf);
+ GNUNET_free (non_const_filename);
/* Count the number of arguments */
arg = (char **) argv;
arg = (char **) argv;
while (*arg)
{
- non_const_argv[argcount] = GNUNET_strdup (*arg);
+ if (arg == argv)
+ non_const_argv[argcount] = GNUNET_strdup (path);
+ else
+ non_const_argv[argcount] = GNUNET_strdup (*arg);
arg++;
argcount++;
}
arg++;
}
+ while (argcount > 0)
+ GNUNET_free (non_const_argv[--argcount]);
+ GNUNET_free (non_const_argv);
+
memset (&start, 0, sizeof (start));
start.cb = sizeof (start);
+ control_pipe = GNUNET_DISK_npipe_create (&childpipename,
+ GNUNET_DISK_OPEN_WRITE, GNUNET_DISK_PERM_USER_READ |
+ GNUNET_DISK_PERM_USER_WRITE);
+ if (control_pipe == NULL)
+ {
+ GNUNET_free (cmd);
+ GNUNET_free (path);
+ return NULL;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Opened the parent end of the pipe `%s'\n", childpipename);
+
+ GNUNET_asprintf (&our_env[0], "%s=", GNUNET_OS_CONTROL_PIPE);
+ GNUNET_asprintf (&our_env[1], "%s", childpipename);
+ our_env[2] = NULL;
+ env_block = CreateCustomEnvTable (our_env);
+ GNUNET_free (our_env[0]);
+ GNUNET_free (our_env[1]);
+
if (!CreateProcess
- (non_const_filename, cmd, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &start,
- &proc))
+ (path, cmd, NULL, NULL, FALSE, DETACHED_PROCESS | CREATE_SUSPENDED,
+ env_block, NULL, &start, &proc))
{
SetErrnoFromWinError (GetLastError ());
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "CreateProcess");
+ GNUNET_free (env_block);
+ GNUNET_free (cmd);
return NULL;
}
+ GNUNET_free (env_block);
+
gnunet_proc = GNUNET_malloc (sizeof (struct GNUNET_OS_Process));
gnunet_proc->pid = proc.dwProcessId;
gnunet_proc->handle = proc.hProcess;
+ gnunet_proc->control_pipe = control_pipe;
CreateThread (NULL, 64000, ChildWaitThread, (void *) gnunet_proc, 0, NULL);
+ ResumeThread (proc.hThread);
CloseHandle (proc.hThread);
GNUNET_free (cmd);
- while (argcount > 0)
- GNUNET_free (non_const_argv[--argcount]);
- GNUNET_free (non_const_argv);
-
return gnunet_proc;
#endif
}
projects / oweals / gnunet.git / commitdiff