Initial commit

1 files changed, 35 insertions, 0 deletions

diff --git a/env.c b/env.c
new file mode 100644
index 0000000..4db8b2d
--- /dev/null
+++ b/env.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// SPDX-FileCopyrightText: 2020 Alyssa Ross <hi@alyssa.is>
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "env.h"
+
+int vsetenvf(const char *name, int overwrite, const char *fmt, va_list args)
+{
+	char *s;
+	int r;
+
+	if (vasprintf(&s, fmt, args) == -1)
+		return -1;
+
+	r = setenv(name, s, overwrite);
+
+	free(s);
+	return r;
+}
+
+int setenvf(const char *name, int overwrite, const char *fmt, ...)
+{
+	va_list ap;
+	int r;
+	
+	va_start(ap, fmt);
+	r = vsetenvf(name, overwrite, fmt, ap);
+	va_end(ap);
+
+	return r;
+}