Remove dead code

Author: DimitriPapadopoulos

src/config.c

@@ -100,7 +100,7 @@ int add_trusted_cert(struct vpn_config *cfg, const char *digest)
 
 	new = malloc(sizeof(struct x509_digest));
 	if (new == NULL)
-		return ERR_CFG_NO_MEM;
+		return -errno;
 
 	new->next = NULL;
 	strncpy(new->data, digest, SHA256STRLEN - 1);
@@ -194,7 +194,7 @@ int load_config(struct vpn_config *cfg, const char *filename)
 
 	file = fopen(filename, "r");
 	if (file == NULL) {
-		ret = ERR_CFG_SEE_ERRNO;
+		ret = -errno;
 		goto err_return;
 	}
 
@@ -482,7 +482,7 @@ int load_config(struct vpn_config *cfg, const char *filename)
 		}
 	}
 	if (ferror(file))
-		ret = ERR_CFG_SEE_ERRNO;
+		ret = -errno;
 
 err_free:
 	free(line);

src/config.h

@@ -25,25 +25,6 @@
 #include <stdint.h>
 #include <string.h>
 
-#define ERR_CFG_UNKNOWN		-1
-#define ERR_CFG_SEE_ERRNO	-2
-#define ERR_CFG_EMPTY_FILE	-3
-#define ERR_CFG_NO_MEM		-4
-#define ERR_CFG_CANNOT_READ	-5
-
-static inline const char *err_cfg_str(int code)
-{
-	if (code == ERR_CFG_SEE_ERRNO)
-		return strerror(errno);
-	else if (code == ERR_CFG_EMPTY_FILE)
-		return "Empty file";
-	else if (code == ERR_CFG_NO_MEM)
-		return "Not enough memory";
-	else if (code == ERR_CFG_CANNOT_READ)
-		return "Cannot read file";
-	return "unknown";
-}
-
 #if HAVE_USR_SBIN_PPPD
 #define PPP_DAEMON "pppd"
 #else

src/main.c

@@ -668,7 +668,7 @@ int main(int argc, char *argv[])
 			log_debug("Loaded configuration file \"%s\".\n", config_file);
 		else
 			log_warn("Could not load configuration file \"%s\" (%s).\n",
-			         config_file, err_cfg_str(ret));
+			         config_file, strerror(-ret));
 	}
 	if (cli_cfg.password_set) {
 		if (cli_cfg.password[0] == '\0')