diff options
Diffstat (limited to 'lib/sh/casemod.c')
-rw-r--r-- | lib/sh/casemod.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/sh/casemod.c b/lib/sh/casemod.c index d85549a..3127d8c 100644 --- a/lib/sh/casemod.c +++ b/lib/sh/casemod.c @@ -111,6 +111,13 @@ sh_modcase (string, pat, flags) mbstate_t state; #endif + if (string == 0 || *string == 0) + { + ret = (char *)xmalloc (1); + ret[0] = '\0'; + return ret; + } + #if defined (HANDLE_MULTIBYTE) memset (&state, 0, sizeof (mbstate_t)); #endif |