summaryrefslogtreecommitdiff
path: root/dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch
diff options
context:
space:
mode:
authorV3n3RiX <venerix@redcorelinux.org>2017-10-09 18:53:29 +0100
committerV3n3RiX <venerix@redcorelinux.org>2017-10-09 18:53:29 +0100
commit4f2d7949f03e1c198bc888f2d05f421d35c57e21 (patch)
treeba5f07bf3f9d22d82e54a462313f5d244036c768 /dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch
reinit the tree, so we can have metadata
Diffstat (limited to 'dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch')
-rw-r--r--dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch b/dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch
new file mode 100644
index 000000000000..d7d6e6bb8a65
--- /dev/null
+++ b/dev-vcs/cvs/files/cvs-1.12.12-cvs-gnulib-vasnprintf.patch
@@ -0,0 +1,34 @@
+http://bugs.gentoo.org/213833
+
+commit 913c09becd9df89dbd9b9f386e7f35c240d5efe8
+Author: Bruno Haible <bruno@clisp.org>
+Date: Fri Oct 19 01:50:42 2007 +0200
+
+ Don't use %n on glibc >= 2.3 systems.
+
+diff --git a/lib/vasnprintf.c b/lib/vasnprintf.c
+index f563823..5d818aa 100644
+--- a/lib/vasnprintf.c
++++ b/lib/vasnprintf.c
+@@ -3385,9 +3385,21 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
+ #endif
+ *p = dp->conversion;
+ #if USE_SNPRINTF
++# if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3))
+ p[1] = '%';
+ p[2] = 'n';
+ p[3] = '\0';
++# else
++ /* On glibc2 systems from glibc >= 2.3 - probably also older
++ ones - we know that snprintf's returns value conforms to
++ ISO C 99: the gl_SNPRINTF_DIRECTIVE_N test passes.
++ Therefore we can avoid using %n in this situation.
++ On glibc2 systems from 2004-10-18 or newer, the use of %n
++ in format strings in writable memory may crash the program
++ (if compiled with _FORTIFY_SOURCE=2), so we should avoid it
++ in this situation. */
++ p[1] = '\0';
++# endif
+ #else
+ p[1] = '\0';
+ #endif