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-rw-r--r--src/afl-gcc.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/afl-gcc.c b/src/afl-gcc.c
index b0153b49..32cd36cb 100644
--- a/src/afl-gcc.c
+++ b/src/afl-gcc.c
@@ -142,12 +142,12 @@ static void edit_params(u32 argc, char **argv) {
if (!strcmp(name, "afl-clang++")) {
u8 *alt_cxx = getenv("AFL_CXX");
- cc_params[0] = alt_cxx ? alt_cxx : (u8 *)"clang++";
+ cc_params[0] = alt_cxx && *alt_cxx ? alt_cxx : (u8 *)"clang++";
} else {
u8 *alt_cc = getenv("AFL_CC");
- cc_params[0] = alt_cc ? alt_cc : (u8 *)"clang";
+ cc_params[0] = alt_cc && *alt_cc ? alt_cc : (u8 *)"clang";
}
@@ -187,17 +187,17 @@ static void edit_params(u32 argc, char **argv) {
if (!strcmp(name, "afl-g++")) {
u8 *alt_cxx = getenv("AFL_CXX");
- cc_params[0] = alt_cxx ? alt_cxx : (u8 *)"g++";
+ cc_params[0] = alt_cxx && *alt_cxx ? alt_cxx : (u8 *)"g++";
} else if (!strcmp(name, "afl-gcj")) {
u8 *alt_cc = getenv("AFL_GCJ");
- cc_params[0] = alt_cc ? alt_cc : (u8 *)"gcj";
+ cc_params[0] = alt_cc && *alt_cc ? alt_cc : (u8 *)"gcj";
} else {
u8 *alt_cc = getenv("AFL_CC");
- cc_params[0] = alt_cc ? alt_cc : (u8 *)"gcc";
+ cc_params[0] = alt_cc && *alt_cc ? alt_cc : (u8 *)"gcc";
}