1 files changed, 30 insertions, 0 deletions
diff --git a/setenv.c b/setenv.c
new file mode 100644
index 0000000..157fea2
--- /dev/null
+++ b/setenv.c
@@ -0,0 +1,30 @@
+/* See LICENSE file for copyright and license details. */
+#include "internal.h"
+
+
+int
+liberror_setenv(const char *envname, const char *envval, int overwrite)
+{
+	const char *desc = "";
+	if (!envname) {
+		errno = EINVAL;
+		if (!envval)
+			desc = "Environment variable name and value are NULL";
+		else
+			desc = "Environment variable name is NULL";
+		goto error;
+	} else if (!envval) {
+		errno = EINVAL;
+		desc = "Environment variable value is NULL";
+		goto error;
+	} else if (!setenv(envname, envval, overwrite)) {
+		return 0;
+	} else if (!*envname) {
+		desc = "Environment variable name is the empty string";
+	} else if (errno == EINVAL) {
+		desc = "Environment variable name contains the '=' character";
+	}
+error:
+	liberror_set_error_errno(desc, "setenv", errno);
+	return -1;
+}