libdpkg, dpkg: Switch subproc_wait() calls to subproc_wait_check()

Add a new PROCNOCHECK flag to disable the checks and to make both calls
equivalent.

3 files changed, 9 insertions, 3 deletions

diff --git a/lib/dpkg/file.c b/lib/dpkg/file.c
index b35be0121..cff224985 100644
--- a/lib/dpkg/file.c
+++ b/lib/dpkg/file.c
@@ -173,5 +173,5 @@ file_show(const char *filename)
 		command_add_arg(&cmd, filename);
 		command_exec(&cmd);
 	}
-	subproc_wait(pid, _("showing file on pager"));
+	subproc_wait_check(pid, _("showing file on pager"), PROCNOCHECK);
 }
diff --git a/lib/dpkg/subproc.c b/lib/dpkg/subproc.c
index f07a378c5..cad968105 100644
--- a/lib/dpkg/subproc.c
+++ b/lib/dpkg/subproc.c
@@ -157,9 +157,14 @@ subproc_wait(pid_t pid, const char *desc)
 int
 subproc_wait_check(pid_t pid, const char *desc, int flags)
 {
-	int status;
+	int status, rc;
 
 	status = subproc_wait(pid, desc);
 
-	return subproc_check(status, desc, flags);
+	if (flags & PROCNOCHECK)
+		rc = status;
+	else
+		rc = subproc_check(status, desc, flags);
+
+	return rc;
 }
diff --git a/lib/dpkg/subproc.h b/lib/dpkg/subproc.h
index e381d3f3d..f4dd7d56f 100644
--- a/lib/dpkg/subproc.h
+++ b/lib/dpkg/subproc.h
@@ -39,6 +39,7 @@ void subproc_signals_cleanup(int argc, void **argv);
 #define PROCPIPE 1
 #define PROCWARN 2
 #define PROCNOERR 4
+#define PROCNOCHECK 8
 
 pid_t subproc_fork(void);
 int subproc_wait(pid_t pid, const char *desc);