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-rw-r--r--libbb/setup_environment.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libbb/setup_environment.c b/libbb/setup_environment.c
index a95fbc5bf..73229ca6c 100644
--- a/libbb/setup_environment.c
+++ b/libbb/setup_environment.c
@@ -32,6 +32,9 @@
void FAST_FUNC setup_environment(const char *shell, int flags, const struct passwd *pw)
{
+ if (!shell || !shell[0])
+ shell = DEFAULT_SHELL;
+
/* Change the current working directory to be the home directory
* of the user */
if (chdir(pw->pw_dir)) {