Add liberror_setenv_failed

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

2 files changed, 22 insertions, 0 deletions

diff --git a/liberror-libc.h b/liberror-libc.h
index fad436b..14ca4a0 100644
--- a/liberror-libc.h
+++ b/liberror-libc.h
@@ -65,6 +65,7 @@ _LIBERROR_WUR ssize_t liberror_send_require(int, const void *, size_t, int, size
 void liberror_send_failed(int, const void *, size_t, int, const char *);
 void liberror_send_short(int, const void *, size_t, int, size_t min, size_t max, ssize_t returned, const char *);
 _LIBERROR_WUR int liberror_setenv(const char *, const char *, int);
+void liberror_setenv_failed(const char *, const char *, int);
 _LIBERROR_WUR int liberror_shutdown(int, int, const char *);
 void liberror_shutdown_failed(int, int, const char *);
 _LIBERROR_WUR int liberror_sockatmark(int, const char *);
diff --git a/setenv.c b/setenv.c
index 0bb7831..4066489 100644
--- a/setenv.c
+++ b/setenv.c
@@ -2,6 +2,27 @@
 #include "internal.h"
 
 
+void
+liberror_setenv_failed(const char *envname, const char *envval, int overwrite)
+{
+	const char *desc = "";
+	if (!envname) {
+		if (!envval)
+			desc = "Environment variable name and value are NULL";
+		else
+			desc = "Environment variable name is NULL";
+	} else if (!envval) {
+		desc = "Environment variable value is NULL";
+	} else if (!*envname) {
+		desc = "Environment variable name is the empty string";
+	} else if (errno == EINVAL) {
+		desc = "Environment variable name contains the '=' character";
+	}
+	liberror_set_error_errno(desc, "setenv", errno);
+	(void) overwrite;
+}
+
+
 int
 liberror_setenv(const char *envname, const char *envval, int overwrite)
 {