First commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 27 insertions, 0 deletions

diff --git a/putenv.c b/putenv.c
new file mode 100644
index 0000000..b88b3cd
--- /dev/null
+++ b/putenv.c
@@ -0,0 +1,27 @@
+/* See LICENSE file for copyright and license details. */
+#include "internal.h"
+
+
+int
+liberror_putenv(char *string)
+{
+	const char *desc = "";
+	if (!string) {
+		errno = EINVAL;
+		desc = "Environment string is NULL";
+		goto error;
+	} else if (*string == '=') {
+		errno = EINVAL;
+		desc = "Environment variable name is the empty string";
+		goto error;
+	} else if (!strchr(string, '=')) {
+		errno = EINVAL;
+		desc = "Environment does not contain an '=' symbol";
+		goto error;
+	} else if (!putenv(string)) {
+		return 0;
+	}
+error:
+	liberror_set_error_errno(desc, "putenv", errno);
+	return -1;
+}