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genodepkgs/packages/genodelabs/patches/libc.patch

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From a163f085a918c4af156d84cb40aa1df5afe0bd44 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Wed, 6 May 2020 04:38:35 +0530
Subject: [PATCH 1/7] libc: add siginterrupt dummy
---
repos/libports/src/lib/libc/signal.cc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/repos/libports/src/lib/libc/signal.cc b/repos/libports/src/lib/libc/signal.cc
index a08854a8c0..2d2def34d3 100644
--- a/repos/libports/src/lib/libc/signal.cc
+++ b/repos/libports/src/lib/libc/signal.cc
@@ -131,6 +131,9 @@ extern "C" int sigaction(int signum, const struct sigaction *act, struct sigacti
}
+extern "C" int siginterrupt(int sig, int flag) { return 0; };
+
+
extern "C" int _sigaction(int, const struct sigaction *, struct sigaction *) __attribute__((weak, alias("sigaction")));
extern "C" int __sys_sigaction(int, const struct sigaction *, struct sigaction *) __attribute__((weak, alias("sigaction")));
extern "C" int __libc_sigaction(int, const struct sigaction *, struct sigaction *) __attribute__((weak, alias("sigaction")));
--
2.29.2
From 45bcbeec901f9d5f748d4f1f73c9a70bc449302a Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Wed, 6 May 2020 04:59:56 +0530
Subject: [PATCH 2/7] libc: add upstream mbsinit
---
repos/libports/lib/mk/libc-locale.mk | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/repos/libports/lib/mk/libc-locale.mk b/repos/libports/lib/mk/libc-locale.mk
index 8e75e59589..2bb98b1456 100644
--- a/repos/libports/lib/mk/libc-locale.mk
+++ b/repos/libports/lib/mk/libc-locale.mk
@@ -6,7 +6,7 @@ CC_OPT += -D_Thread_local=""
FILTER_OUT = \
c16rtomb.c c32rtomb_iconv.c mbrtoc16_iconv.c mbrtoc32_iconv.c \
setlocale.c xlocale.c setrunelocale.c \
- ascii.c big5.c euc.co gb18030.c gb2312.c gbk.c mbsinit.c mskanji.c utf8.c \
+ ascii.c big5.c euc.co gb18030.c gb2312.c gbk.c mskanji.c utf8.c \
SRC_C = $(filter-out $(FILTER_OUT),$(notdir $(wildcard $(LIBC_LOCALE_DIR)/*.c)))
--
2.29.2
From 61b10dc8c6e2dd406667046665c9d31b9505d7ac Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Wed, 27 May 2020 16:35:16 +0530
Subject: [PATCH 3/7] libc: add mlock and munlock dummies
---
repos/libports/src/lib/libc/dummies.cc | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/repos/libports/src/lib/libc/dummies.cc b/repos/libports/src/lib/libc/dummies.cc
index b01d95f717..f676b4979c 100644
--- a/repos/libports/src/lib/libc/dummies.cc
+++ b/repos/libports/src/lib/libc/dummies.cc
@@ -218,5 +218,15 @@ int __attribute__((weak)) madvise(void *addr, size_t length, int advice)
const struct res_sym __p_type_syms[] = { };
+#define DUMMY_EPERM(ret_type, ret_val, name, args) __attribute__((weak)) \
+ret_type name args \
+{ \
+ errno = EPERM; \
+ return ret_val; \
+}
+
+DUMMY_EPERM(int, -1, mlock, (const void *, size_t));
+DUMMY_EPERM(int, -1, munlock, (const void *, size_t));
+
} /* extern "C" */
--
2.29.2
From 45c8afc8319fb0eb60914d44712ddcad97509709 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Fri, 29 May 2020 09:26:50 +0530
Subject: [PATCH 4/7] libc: return 0 from getpgrp and getppid dummies
---
repos/libports/src/lib/libc/dummies.cc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/repos/libports/src/lib/libc/dummies.cc b/repos/libports/src/lib/libc/dummies.cc
index f676b4979c..9c568dcc77 100644
--- a/repos/libports/src/lib/libc/dummies.cc
+++ b/repos/libports/src/lib/libc/dummies.cc
@@ -109,8 +109,8 @@ DUMMY(char *, 0, _getlogin, (void))
DUMMY(int , -1, getnameinfo, (const sockaddr *, socklen_t, char *, size_t, char *, size_t, int))
DUMMY(struct servent *, 0, getservbyname, (const char *, const char *))
DUMMY(int , -1, getsid, (pid_t))
-DUMMY_SILENT(pid_t , -1, getppid, (void))
-DUMMY(pid_t , -1, getpgrp, (void))
+DUMMY_SILENT(pid_t , 0, getpgrp, (void))
+DUMMY_SILENT(pid_t , 0, getppid, (void))
DUMMY(int , -1, getpriority, (int, int))
DUMMY(int , -1, getrusage, (int, rusage *))
DUMMY_SILENT(uid_t , 0, getuid, (void))
--
2.29.2
From bc10be54b1057eb5f333cdefb35730371bd22a19 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Wed, 2 Dec 2020 16:31:59 +0100
Subject: [PATCH 5/7] libc: implement if_nametoindex
---
.../libports/src/lib/libc/socket_fs_plugin.cc | 50 ++++++++++++++++++-
1 file changed, 49 insertions(+), 1 deletion(-)
diff --git a/repos/libports/src/lib/libc/socket_fs_plugin.cc b/repos/libports/src/lib/libc/socket_fs_plugin.cc
index d5db46ff83..fabaf68b5c 100644
--- a/repos/libports/src/lib/libc/socket_fs_plugin.cc
+++ b/repos/libports/src/lib/libc/socket_fs_plugin.cc
@@ -33,6 +33,8 @@
#include <stdio.h>
#include <sys/ioctl.h>
#include <ifaddrs.h>
+#include <sys/types.h>
+#include <sys/socket.h>
#include <net/if.h>
/* libc-internal includes */
@@ -1128,7 +1130,53 @@ extern "C" int getifaddrs(struct ifaddrs **ifap)
}
-extern "C" void freeifaddrs(struct ifaddrs *) { }
+extern "C" void freeifaddrs(struct ifaddrs *)
+{
+}
+
+
+static char const * static_if_name = "eth0";
+
+
+extern "C" unsigned int
+if_nametoindex(const char *ifname)
+{
+ return ::strcmp(ifname, static_if_name) ? 0 : 1;
+}
+
+
+extern "C" char *
+if_indextoname(unsigned int ifindex, char *ifname)
+{
+ if (ifindex == 1) {
+ strncpy(ifname, static_if_name, IFNAMSIZ);
+ return ifname;
+ }
+ return NULL;
+}
+
+
+extern "C" struct if_nameindex *
+if_nameindex(void)
+{
+ static struct if_nameindex if_ni_array[2] = {
+ {
+ .if_index = 1,
+ .if_name = (char *)static_if_name
+ },
+ {
+ .if_index = 0,
+ .if_name = NULL
+ }
+ };
+
+ return if_ni_array;
+}
+
+
+extern "C" void if_freenameindex(struct if_nameindex *ptr)
+{
+}
/****************************
--
2.29.2
From 68e56d8e95bbcf8aaa77b2f95d9c76890e1f5489 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Thu, 4 Jun 2020 01:03:37 +0530
Subject: [PATCH 6/7] libc: add readpassphrase
This symbol is already in the stub library.
---
repos/libports/lib/mk/libc-gen.inc | 1 -
1 file changed, 1 deletion(-)
diff --git a/repos/libports/lib/mk/libc-gen.inc b/repos/libports/lib/mk/libc-gen.inc
index ab0ce929aa..1c7f84e800 100644
--- a/repos/libports/lib/mk/libc-gen.inc
+++ b/repos/libports/lib/mk/libc-gen.inc
@@ -40,7 +40,6 @@ FILTER_OUT_C += \
getentropy.c \
getutxent.c \
pututxline.c \
- readpassphrase.c \
scandir_b.c \
sem_new.c \
signal.c \
--
2.29.2
From f95d3fdeef9186476215e53ead8ed38fd7cd533e Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Wed, 2 Dec 2020 22:27:00 +0100
Subject: [PATCH 7/7] libc: do not set different errno values for O_NOFOLLOW
Do not replace ENOENT and EEXIST with ELOOP when open is called with
O_NOFOLLOW. This breaks Tor.
---
repos/libports/src/lib/libc/vfs_plugin.cc | 16 ----------------
1 file changed, 16 deletions(-)
diff --git a/repos/libports/src/lib/libc/vfs_plugin.cc b/repos/libports/src/lib/libc/vfs_plugin.cc
index 0947e44740..3b34c134f8 100644
--- a/repos/libports/src/lib/libc/vfs_plugin.cc
+++ b/repos/libports/src/lib/libc/vfs_plugin.cc
@@ -319,10 +319,6 @@ Libc::File_descriptor *Libc::Vfs_plugin::open_from_kernel(const char *path, int
case Result::OPEN_ERR_UNACCESSIBLE:
{
if (!(flags & O_CREAT)) {
- if (flags & O_NOFOLLOW) {
- errno = ELOOP;
- return 0;
- }
errno = ENOENT;
return 0;
}
@@ -336,10 +332,6 @@ Libc::File_descriptor *Libc::Vfs_plugin::open_from_kernel(const char *path, int
case Result::OPEN_ERR_EXISTS:
/* file has been created by someone else in the meantime */
- if (flags & O_NOFOLLOW) {
- errno = ELOOP;
- return 0;
- }
errno = EEXIST;
return 0;
@@ -451,10 +443,6 @@ Libc::File_descriptor *Libc::Vfs_plugin::open(char const *path, int flags)
case Result::OPEN_ERR_UNACCESSIBLE:
{
if (!(flags & O_CREAT)) {
- if (flags & O_NOFOLLOW) {
- result_errno = ELOOP;
- return Fn::COMPLETE;
- }
result_errno = ENOENT;
return Fn::COMPLETE;
}
@@ -468,10 +456,6 @@ Libc::File_descriptor *Libc::Vfs_plugin::open(char const *path, int flags)
case Result::OPEN_ERR_EXISTS:
/* file has been created by someone else in the meantime */
- if (flags & O_NOFOLLOW) {
- result_errno = ELOOP;
- return Fn::COMPLETE;
- }
result_errno = EEXIST;
return Fn::COMPLETE;
--
2.29.2
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