guix/gnu/packages/patches/reptyr-fix-gcc-7.patch

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This patch allows reptyr to build with gcc 7. It is taken from reptyr mainline patches
fa0d63f and b45fd92.
https://github.com/nelhage/reptyr/commit/fa0d63ff8c488be15976e5353580b565e85586a1
https://github.com/nelhage/reptyr/commit/b45fd9238958fcf2d8f3d6fc23e6d491febea2ac
Patch by Nelson Elhage <nelhage@nelhage.com>.
diff --git a/attach.c b/attach.c
index bd8ef8c..8d9cbf8 100644
--- a/attach.c
+++ b/attach.c
@@ -389,8 +389,11 @@ int setup_steal_socket(struct steal_pty_state *steal) {
return errno;
steal->addr_un.sun_family = AF_UNIX;
- snprintf(steal->addr_un.sun_path, sizeof(steal->addr_un.sun_path),
- "%s/reptyr.sock", steal->tmpdir);
+ if (snprintf(steal->addr_un.sun_path, sizeof(steal->addr_un.sun_path),
+ "%s/reptyr.sock", steal->tmpdir) >= sizeof(steal->addr_un.sun_path)) {
+ error("tmpdir path too long!");
+ return ENAMETOOLONG;
+ }
if ((steal->sockfd = socket(AF_UNIX, SOCK_DGRAM, 0)) < 0)
return errno;
diff --git a/platform/linux/linux.h b/platform/linux/linux.h
index 9e6b78a..3ec5a99 100644
--- a/platform/linux/linux.h
+++ b/platform/linux/linux.h
@@ -40,6 +40,7 @@
#include <sys/ptrace.h>
#include <asm/ptrace.h>
#include <sys/types.h>
+#include <sys/sysmacros.h>
#include <sys/user.h>
#include <unistd.h>
#include <stdlib.h>