diff options
Diffstat (limited to 'ports/common/guts/execve.c')
| -rw-r--r-- | ports/common/guts/execve.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/ports/common/guts/execve.c b/ports/common/guts/execve.c new file mode 100644 index 0000000..a47b9a7 --- /dev/null +++ b/ports/common/guts/execve.c @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2008-2010 Wind River Systems; see + * guts/COPYRIGHT for information. + * + * static int + * wrap_execve(const char *file, char *const *argv, char *const *envp) { + * int rc = -1; + */ + char * const *new_environ; + /* note: we don't canonicalize this, because we are intentionally + * NOT redirecting execs into the chroot environment. If you try + * to execute /bin/sh, you get the actual /bin/sh, not + * <CHROOT>/bin/sh. This allows use of basic utilities. This + * design will likely be revisited. + */ + if (antimagic == 0) { + char *path_guess = pseudo_exec_path(file, 0); + pseudo_client_op(OP_EXEC, PSA_EXEC, -1, -1, path_guess, 0); + free(path_guess); + } + + if (!pseudo_get_value("PSEUDO_RELOADED")) + new_environ = pseudo_setupenvp(envp); + else { + new_environ = pseudo_setupenvp(envp); + new_environ = pseudo_dropenvp(new_environ); + } + + /* if exec() fails, we may end up taking signals unexpectedly... + * not much we can do about that. + */ + sigprocmask(SIG_SETMASK, &pseudo_saved_sigmask, NULL); + rc = real_execve(file, argv, new_environ); + +/* return rc; + * } + */ |