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-rw-r--r--lib/lib.c2
-rwxr-xr-xtests/echo.test2
2 files changed, 3 insertions, 1 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 930f66e4..03529a22 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -445,7 +445,7 @@ int unescape2(char **c, int echo)
if (**c == 'c') return 31&*(++*c);
for (i = 0; i<4; i++) {
if (sscanf(*c, (char *[]){"0%3o%n"+!echo, "x%2x%n", "u%4x%n", "U%6x%n"}[i],
- &idx, &off))
+ &idx, &off) > 0)
{
*c += off;
diff --git a/tests/echo.test b/tests/echo.test
index 012692ea..bd2c3ff7 100755
--- a/tests/echo.test
+++ b/tests/echo.test
@@ -49,3 +49,5 @@ testcmd "-eE" "-eE '\e'" '\\e\n' "" ""
# This is how bash's built-in echo behaves, but now how /bin/echo behaves.
toyonly testcmd "" "-e 'a\x123\ufb3bbc' | od -An -tx1" \
" 61 12 33 ef ac bb 62 63 0a\n" "" ""
+
+testcmd "trailing nul" "-ne 'a\0b\0' | od -An -tx1" " 61 00 62 00\n" "" ""