Revert previous - it introduces problems with a common privsep use case.

1 files changed, 11 insertions, 68 deletions

diff --git a/lib/libtls/tls_config.c b/lib/libtls/tls_config.c
index a348b826d57..6b47eeb8d11 100644
--- a/lib/libtls/tls_config.c
+++ b/lib/libtls/tls_config.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_config.c,v 1.20 2016/07/06 16:47:18 jsing Exp $ */
+/* $OpenBSD: tls_config.c,v 1.21 2016/07/07 14:09:03 jsing Exp $ */
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
  *
@@ -15,13 +15,9 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <sys/stat.h>
-
 #include <ctype.h>
 #include <errno.h>
-#include <fcntl.h>
 #include <stdlib.h>
-#include <unistd.h>
 
 #include <tls.h>
 #include "tls_internal.h"
@@ -61,53 +57,6 @@ set_mem(char **dest, size_t *destlen, const void *src, size_t srclen)
 	return 0;
 }
 
-static int
-load_file(struct tls_error *error, const char *filetype, const char *filename,
-    char **buf, size_t *len)
-{
-	struct stat st;
-	int fd = -1;
-
-	free(*buf);
-	*buf = NULL;
-	*len = 0;
-
-	if ((fd = open(filename, O_RDONLY)) == -1) {
-		tls_error_set(error, "failed to open %s file '%s'",
-		    filetype, filename);
-		goto fail;
-	}
-	if (fstat(fd, &st) != 0) {
-		tls_error_set(error, "failed to stat %s file '%s'",
-		    filetype, filename);
-		goto fail;
-	}
-	*len = (size_t)st.st_size;
-	if ((*buf = malloc(*len)) == NULL) {
-		tls_error_set(error, "failed to allocate buffer for "
-		    "%s file '%s'", filetype, filename);
-		goto fail;
-	}
-	if (read(fd, *buf, *len) != *len) {
-		tls_error_set(error, "failed to read %s file '%s'",
-		    filetype, filename);
-		goto fail;
-	}
-	close(fd);
-	return 0;
-
- fail:
-	if (fd != -1)
-		close(fd);
-	if (*buf != NULL)
-		explicit_bzero(*buf, *len);
-	free(*buf);
-	*buf = NULL;
-	*len = 0;
-
-	return -1;
-}
-
 static struct tls_keypair *
 tls_keypair_new()
 {
@@ -115,11 +64,9 @@ tls_keypair_new()
 }
 
 static int
-tls_keypair_set_cert_file(struct tls_keypair *keypair, struct tls_error *error,
-    const char *cert_file)
+tls_keypair_set_cert_file(struct tls_keypair *keypair, const char *cert_file)
 {
-	return load_file(error, "certificate", cert_file, &keypair->cert_mem,
-	    &keypair->cert_len);
+	return set_string(&keypair->cert_file, cert_file);
 }
 
 static int
@@ -130,13 +77,9 @@ tls_keypair_set_cert_mem(struct tls_keypair *keypair, const uint8_t *cert,
 }
 
 static int
-tls_keypair_set_key_file(struct tls_keypair *keypair, struct tls_error *error,
-    const char *key_file)
+tls_keypair_set_key_file(struct tls_keypair *keypair, const char *key_file)
 {
-	if (keypair->key_mem != NULL)
-		explicit_bzero(keypair->key_mem, keypair->key_len);
-	return load_file(error, "key", key_file, &keypair->key_mem,
-	    &keypair->key_len);
+	return set_string(&keypair->key_file, key_file);
 }
 
 static int
@@ -163,7 +106,9 @@ tls_keypair_free(struct tls_keypair *keypair)
 
 	tls_keypair_clear(keypair);
 
+	free((char *)keypair->cert_file);
 	free(keypair->cert_mem);
+	free((char *)keypair->key_file);
 	free(keypair->key_mem);
 
 	free(keypair);
@@ -221,6 +166,7 @@ tls_config_free(struct tls_config *config)
 
 	free(config->error.msg);
 
+	free((char *)config->ca_file);
 	free((char *)config->ca_mem);
 	free((char *)config->ca_path);
 	free((char *)config->ciphers);
@@ -306,8 +252,7 @@ tls_config_parse_protocols(uint32_t *protocols, const char *protostr)
 int
 tls_config_set_ca_file(struct tls_config *config, const char *ca_file)
 {
-	return load_file(&config->error, "CA", ca_file, &config->ca_mem,
-	    &config->ca_len);
+	return set_string(&config->ca_file, ca_file);
 }
 
 int
@@ -325,8 +270,7 @@ tls_config_set_ca_mem(struct tls_config *config, const uint8_t *ca, size_t len)
 int
 tls_config_set_cert_file(struct tls_config *config, const char *cert_file)
 {
-	return tls_keypair_set_cert_file(config->keypair, &config->error,
-	    cert_file);
+	return tls_keypair_set_cert_file(config->keypair, cert_file);
 }
 
 int
@@ -409,8 +353,7 @@ tls_config_set_ecdhecurve(struct tls_config *config, const char *name)
 int
 tls_config_set_key_file(struct tls_config *config, const char *key_file)
 {
-	return tls_keypair_set_key_file(config->keypair, &config->error,
-	    key_file);
+	return tls_keypair_set_key_file(config->keypair, key_file);
 }
 
 int