Add some functions and add functions with _failed suffix

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

1 files changed, 15 insertions, 12 deletions

diff --git a/unsetenv.c b/unsetenv.c
index 1462618..82eebcb 100644
--- a/unsetenv.c
+++ b/unsetenv.c
@@ -2,23 +2,26 @@
 #include "internal.h"
 
 
-int
-liberror_unsetenv(const char *name)
+void
+liberror_unsetenv_failed(const char *name)
 {
 	const char *desc = "";
-	if (!name) {
-		errno = EINVAL;
+	if (!name)
 		desc = "Environment variable name is NULL";
-		goto error;
-	} else if (!unsetenv(name)) {
-		return 0;
-	} else if (!*name) {
+	else if (!*name)
 		desc = "Environment variable name is the empty string";
-	} else if (errno == EINVAL) {
+	else if (errno == EINVAL)
 		desc = "Environment variable name contains the '=' character";
-	}
-error:
-	liberror_save_backtrace(NULL);
 	liberror_set_error_errno(desc, "setenv", errno);
+}
+
+
+int
+liberror_unsetenv(const char *name)
+{
+	if (!unsetenv(name))
+		return 0;
+	liberror_save_backtrace(NULL);
+	liberror_unsetenv_failed(name);
 	return -1;
 }