Fix multiple vulnerabilities (closes: #850432)

- New patch 934_menu.patch to fix buffer overflow (tats/w3m#49)
- New patch 935_shiftanchor.patch to fix buffer overflow (tats/w3m#62)
- New patch 936_metarefresh.patch to fix buffer overflow (tats/w3m#63)
- New patch 937_lineproc0.patch to fix buffer overflow (tats/w3m#67)
- New patch 938_lineproc2body.patch to fix buffer overflow (tats/w3m#61)
- New patch 939_textarea.patch to fix buffer overflow (tats/w3m#58)
- New patch 940_tabattr.patch to fix buffer overflow (tats/w3m#60)
- New patch 941_integeredwidth.patch to fix buffer overflow (tats/w3m#70)
- New patch 942_tridvalue.patch to fix buffer overflow (tats/w3m#71)
- New patch 943_pushlink.patch to fix buffer overflow (tats/w3m#64, #66)
- New patch 944_lineproc0.patch to fix use after free (tats/w3m#65)
- New patch 945_wtfstrwidth.patch to fix buffer overflow (tats/w3m#57)
- New patch 946_strnewsize.patch to fix buffer overflow (tats/w3m#72)
- New patch 947_realcolumn.patch to fix buffer overflow (tats/w3m#69)
- New patch 948_getmclen.patch to fix buffer overflow
  (tats/w3m#59, #73, #74, #75, #76, #78, #79, #80, #83, #84)
- New patch 949_wtftowcs.patch to fix buffer overflow (tats/w3m#77)
- New patch 950_textarea.patch to fix infinite loop (tats/w3m#85)
- New patch 951_lineproc0.patch to fix use after free (tats/w3m#81)
- New patch 952_formupdatebuffer.patch to fix buffer overflow (tats/w3m#82)
- New patch 953_formupdateline.patch to fix buffer overflow
  (tats/w3m#68#issuecomment-266214643)
- New patch 954_wtfparse1.patch to fix buffer overflow (tats/w3m#68)

1 files changed, 28 insertions, 0 deletions

diff --git a/debian/patches/936_metarefresh.patch b/debian/patches/936_metarefresh.patch
new file mode 100644
index 0000000..0014c64
--- /dev/null
+++ b/debian/patches/936_metarefresh.patch
@@ -0,0 +1,28 @@
+Subject: Prevent negative array index in getMetaRefreshParam()
+From: Tatsuya Kinoshita <tats@debian.org>
+Bug-Debian: https://github.com/tats/w3m/issues/63
+Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=6c6a2cbced21ceec2fac08fba1ad271a77f9dbc2
+
+---
+ file.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/file.c b/file.c
+index e82eaf1..18b350a 100644
+--- a/file.c
++++ b/file.c
+@@ -4361,8 +4361,9 @@ getMetaRefreshParam(char *q, Str *refresh_uri)
+ 		r++;
+ 	    s_tmp = Strnew_charp_n(q, r - q);
+ 
+-	    if (s_tmp->ptr[s_tmp->length - 1] == '\"'          /* " */
+-	       || s_tmp->ptr[s_tmp->length - 1] == '\'') {     /* ' */
++	    if (s_tmp->length > 0 &&
++	        (s_tmp->ptr[s_tmp->length - 1] == '\"' ||	/* " */
++		 s_tmp->ptr[s_tmp->length - 1] == '\'')) {	/* ' */
+ 		s_tmp->length--;
+ 		s_tmp->ptr[s_tmp->length] = '\0';
+ 	    }
+-- 
+2.10.2
+