51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#include <system.h>
-#include <getline.h>
#include <setenv.h>
#include "common.h"
}
}
-static pid_t pid;
+static pid_t global_pid;
static RETSIGTYPE (*pipe_handler) (int sig);
int
xpipe (p);
pipe_handler = signal (SIGPIPE, SIG_IGN);
- pid = xfork ();
+ global_pid = xfork ();
- if (pid != 0)
+ if (global_pid != 0)
{
xclose (p[PREAD]);
return p[PWRITE];
{
int status;
- if (pid < 0)
+ if (global_pid < 0)
return;
signal (SIGPIPE, pipe_handler);
- while (waitpid (pid, &status, 0) == -1)
+ while (waitpid (global_pid, &status, 0) == -1)
if (errno != EINTR)
{
- pid = -1;
+ global_pid = -1;
waitpid_error (to_command_option);
return;
}
{
if (!ignore_command_error_option && WEXITSTATUS (status))
ERROR ((0, 0, _("%lu: Child returned status %d"),
- (unsigned long) pid, WEXITSTATUS (status)));
+ (unsigned long) global_pid, WEXITSTATUS (status)));
}
else if (WIFSIGNALED (status))
{
WARN ((0, 0, _("%lu: Child terminated on signal %d"),
- (unsigned long) pid, WTERMSIG (status)));
+ (unsigned long) global_pid, WTERMSIG (status)));
}
else
ERROR ((0, 0, _("%lu: Child terminated on unknown reason"),
- (unsigned long) pid));
+ (unsigned long) global_pid));
- pid = -1;
+ global_pid = -1;
}
int
char *argv[4];
char uintbuf[UINTMAX_STRSIZE_BOUND];
int p[2];
-
+ static RETSIGTYPE (*saved_handler) (int sig);
+
xpipe (p);
- pipe_handler = signal (SIGPIPE, SIG_IGN);
+ saved_handler = signal (SIGPIPE, SIG_IGN);
pid = xfork ();
int rc;
int status;
- char *buf;
+ char *buf = NULL;
size_t size = 0;
FILE *fp;
while (waitpid (pid, &status, 0) == -1)
if (errno != EINTR)
{
+ signal (SIGPIPE, saved_handler);
waitpid_error (info_script_option);
return -1;
}
+ signal (SIGPIPE, saved_handler);
+
if (WIFEXITED (status))
{
if (WEXITSTATUS (status) == 0 && rc > 0)
exec_fatal (info_script_option);
}
+void
+sys_exec_checkpoint_script (const char *script_name,
+ const char *archive_name,
+ int checkpoint_number)
+{
+ pid_t pid;
+ char *argv[4];
+ char uintbuf[UINTMAX_STRSIZE_BOUND];
+
+ pid = xfork ();
+
+ if (pid != 0)
+ {
+ /* Master */
+
+ int status;
+
+ while (waitpid (pid, &status, 0) == -1)
+ if (errno != EINTR)
+ {
+ waitpid_error (script_name);
+ break;
+ }
+
+ return;
+ }
+
+ /* Child */
+ setenv ("TAR_VERSION", PACKAGE_VERSION, 1);
+ setenv ("TAR_ARCHIVE", archive_name, 1);
+ setenv ("TAR_CHECKPOINT", STRINGIFY_BIGINT (checkpoint_number, uintbuf), 1);
+ setenv ("TAR_SUBCOMMAND", subcommand_string (subcommand_option), 1);
+ setenv ("TAR_FORMAT",
+ archive_format_string (current_format == DEFAULT_FORMAT ?
+ archive_format : current_format), 1);
+ argv[0] = "/bin/sh";
+ argv[1] = "-c";
+ argv[2] = (char*) script_name;
+ argv[3] = NULL;
+
+ execv (argv[0], argv);
+
+ exec_fatal (script_name);
+}
#endif /* not MSDOS */