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-rw-r--r--Build/source/texk/web2c/lib/texmfmp.c4
-rw-r--r--Build/source/texk/web2c/luatexdir/luatex.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/Build/source/texk/web2c/lib/texmfmp.c b/Build/source/texk/web2c/lib/texmfmp.c
index 51f4d8692da..fc4563c43b7 100644
--- a/Build/source/texk/web2c/lib/texmfmp.c
+++ b/Build/source/texk/web2c/lib/texmfmp.c
@@ -449,11 +449,11 @@ shell_cmd_is_allowed (const char *cmd, char **safecmd, char **cmdname)
{
char *p, *q, *r;
p = *safecmd;
- if (p[1] == ':' && !IS_DIR_SEP (p[2])) {
+ if (strlen (p) > 2 && p[1] == ':' && !IS_DIR_SEP (p[2])) {
q = xmalloc (strlen (p) + 2);
q[0] = p[0];
q[1] = p[1];
- q[2] = '\\';
+ q[2] = '/';
q[3] = '\0';
strcat (q, (p + 2));
free (*safecmd);
diff --git a/Build/source/texk/web2c/luatexdir/luatex.c b/Build/source/texk/web2c/luatexdir/luatex.c
index f0e7f4a22e0..4b643e61c05 100644
--- a/Build/source/texk/web2c/luatexdir/luatex.c
+++ b/Build/source/texk/web2c/luatexdir/luatex.c
@@ -353,7 +353,7 @@ int shell_cmd_is_allowed(const char *cmd, char **safecmd, char **cmdname)
{
char *p, *q, *r;
p = *safecmd;
- if (p[1] == ':' && !IS_DIR_SEP (p[2])) {
+ if (strlen (p) > 2 && p[1] == ':' && !IS_DIR_SEP (p[2])) {
q = xmalloc (strlen (p) + 2);
q[0] = p[0];
q[1] = p[1];