Update native SSH clients to OpenSSH 10.6p1

file_cmds/cksum/cksum.c

@@ -137,7 +137,8 @@ chksum_main(int argc, char **argv)
 			rval = 1;
 		} else
 			pfncn(fn, val, len);
-		(void)close(fd);
+		if (fn != NULL)
+			(void)close(fd);
 	} while (*argv);
 	exit(rval);
 }

file_cmds/gzip/gzip.c

@@ -1355,7 +1355,7 @@ file_compress(char *file, char *outfile, size_t outsize)
 		out = open(outfile, O_WRONLY | O_CREAT | O_EXCL, 0600);
 		if (out == -1) {
 			maybe_warn("could not create output: %s", outfile);
-			fclose(thread_stdin);
+			close(in);
 			return (-1);
 		}
 #ifndef SMALL

ios_error.h

@@ -78,6 +78,8 @@ extern int ios_killpid(pid_t pid, int sig); // kill the current running command
 
 extern void ios_exit(int errorCode) __dead2; // set error code and exits from the thread.
 extern int ios_execv(const char *path, char* const argv[]);
+extern int ios_execv_async(const char *path, char* const argv[]); // returns once the child has started
+extern int ios_pidStatus(pid_t pid); // exit status of a finished virtual pid, -1 if unknown
 extern int ios_execve(const char *path, char* const argv[], char** envlist);
 extern int ios_dup2(int fd1, int fd2);
 extern char * ios_getenv(const char *name);

ios_spawn.h

@@ -0,0 +1,31 @@
+#ifndef IOS_SPAWN_H
+#define IOS_SPAWN_H
+#include <sys/types.h>
+#include <stddef.h>
+#include <sys/resource.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+/* Isolated worker processes inherit only stdin, stdout and stderr. */
+typedef struct { int source, target; } ios_spawn_action;
+typedef struct {
+    ios_spawn_action *actions;
+    size_t count;
+    char *cwd;
+} ios_posix_spawn_file_actions_t;
+int ios_posix_spawn_file_actions_init(ios_posix_spawn_file_actions_t *);
+int ios_posix_spawn_file_actions_destroy(ios_posix_spawn_file_actions_t *);
+int ios_posix_spawn_file_actions_adddup2(ios_posix_spawn_file_actions_t *, int, int);
+int ios_posix_spawn_file_actions_addclose(ios_posix_spawn_file_actions_t *, int);
+int ios_posix_spawn_file_actions_addchdir_np(ios_posix_spawn_file_actions_t *, const char *);
+int ios_posix_spawn(pid_t *, const char *, const ios_posix_spawn_file_actions_t *, const void *, char *const [], char *const []);
+/* Wait for an ios_posix_spawn PID; options is 0 or WNOHANG. Returns PID, 0 while
+ * running, or -1 with errno. Status uses waitpid encoding (ios_killpid with SIGINT, SIGTERM, SIGKILL, SIGHUP or SIGQUIT: exit 128 + signal; worker transport failure: exit 125).
+ * Optional usage is the isolated worker's RUSAGE_SELF snapshot at command exit,
+ * including process startup. availability is required when usage is requested;
+ * zero means unavailable (including cancellation), never a measured zero. */
+pid_t ios_wait4(pid_t, int *, int, struct rusage *, int *availability);
+#ifdef __cplusplus
+}
+#endif
+#endif