diff options
Diffstat (limited to 'toolchain/musl/patches/020-verify-that-ttyname-refers-to-the-same-file-as-the-fd.patch')
-rw-r--r-- | toolchain/musl/patches/020-verify-that-ttyname-refers-to-the-same-file-as-the-fd.patch | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/toolchain/musl/patches/020-verify-that-ttyname-refers-to-the-same-file-as-the-fd.patch b/toolchain/musl/patches/020-verify-that-ttyname-refers-to-the-same-file-as-the-fd.patch deleted file mode 100644 index d9cd0b397b..0000000000 --- a/toolchain/musl/patches/020-verify-that-ttyname-refers-to-the-same-file-as-the-fd.patch +++ /dev/null @@ -1,49 +0,0 @@ -From 0a950dcf15bb9f7274c804dca490e9e20e475f3e Mon Sep 17 00:00:00 2001 -From: Szabolcs Nagy <nsz@port70.net> -Date: Sat, 20 Aug 2016 21:04:31 +0200 -Subject: verify that ttyname refers to the same file as the fd - -linux containers use separate mount namespace so the /proc -symlink might not point to the right device if the fd was -opened in the parent namespace, in this case return ENOENT. ---- - src/unistd/ttyname_r.c | 15 +++++++++++---- - 1 file changed, 11 insertions(+), 4 deletions(-) - -diff --git a/src/unistd/ttyname_r.c b/src/unistd/ttyname_r.c -index 8bac7b2..a38ba4f 100644 ---- a/src/unistd/ttyname_r.c -+++ b/src/unistd/ttyname_r.c -@@ -1,10 +1,12 @@ - #include <unistd.h> - #include <errno.h> -+#include <sys/stat.h> - - void __procfdname(char *, unsigned); - - int ttyname_r(int fd, char *name, size_t size) - { -+ struct stat st1, st2; - char procname[sizeof "/proc/self/fd/" + 3*sizeof(int) + 2]; - ssize_t l; - -@@ -15,8 +17,13 @@ int ttyname_r(int fd, char *name, size_t size) - - if (l < 0) return errno; - else if (l == size) return ERANGE; -- else { -- name[l] = 0; -- return 0; -- } -+ -+ name[l] = 0; -+ -+ if (stat(name, &st1) || fstat(fd, &st2)) -+ return errno; -+ if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) -+ return ENOENT; -+ -+ return 0; - } --- -cgit v0.11.2 |