[PATCH 1/3] libX11/lcGenConv.c fix: dereferenced before check
walter harms
wharms at bfs.de
Wed Jun 4 08:08:12 PDT 2014
* Do not use variables before checked for NULL.
Signed-off-by: Harms <wharms at bfs,de>
---
modules/lc/gen/lcGenConv.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/modules/lc/gen/lcGenConv.c b/modules/lc/gen/lcGenConv.c
index 1f7c301..76a91bb 100644
--- a/modules/lc/gen/lcGenConv.c
+++ b/modules/lc/gen/lcGenConv.c
@@ -753,7 +753,7 @@ mbstowcs_org(
CodeSet codeset = NULL;
- const char *inbufptr = *from;
+ const char *inbufptr;
wchar_t *outbufptr = (wchar_t *) *to;
int from_size = *from_left;
@@ -764,6 +764,8 @@ mbstowcs_org(
return( 0 );
}
+ inbufptr = *from;
+
while (*from_left && *to_left) {
ch = *inbufptr++;
@@ -1252,7 +1254,7 @@ ctstowcs(
CodeSet codeset = NULL;
XlcCharSet charset_tmp;
- const char *inbufptr = *from;
+ const char *inbufptr;
wchar_t *outbufptr = (wchar_t *) *to;
int from_size = *from_left;
@@ -1262,6 +1264,7 @@ ctstowcs(
_XlcResetConverter(conv);
return( 0 );
}
+ inbufptr = *from;
while (*from_left && *to_left) {
@@ -1437,7 +1440,7 @@ cstowcs(
CodeSet codeset = NULL;
XlcCharSet charset, charset_tmp;
- const char *inbufptr = *from;
+ const char *inbufptr;
wchar_t *outbufptr = (wchar_t *) *to;
int from_size = *from_left;
@@ -1445,6 +1448,8 @@ cstowcs(
return( 0 );
}
+ inbufptr = *from;
+
charset = (XlcCharSet) args[0];
while (*from_left && *to_left) {
@@ -1643,7 +1648,7 @@ mbstostr(
CodeSet codeset = NULL;
- const char *inbufptr = *from;
+ const char *inbufptr;
char *outbufptr = *to;
int from_size = *from_left;
@@ -1654,6 +1659,8 @@ mbstostr(
return( 0 );
}
+ inbufptr = *from;
+
while (*from_left && *to_left) {
ch = *inbufptr++;
@@ -1758,7 +1765,7 @@ mbtocs(
CodeSet codeset = NULL;
XlcCharSet charset = NULL;
- const char *inbufptr = *from;
+ const char *inbufptr;
char *outbufptr = *to;
int from_size = *from_left;
@@ -1769,6 +1776,8 @@ mbtocs(
return( 0 );
}
+ inbufptr = *from;
+
while (*from_left && *to_left) {
ch = *inbufptr++;
--
1.8.4.5
More information about the xorg-devel
mailing list