secret: Various formatting cleanups

Rather than having it interspersed with other changes, do it once.

Remove a couple ^L, 1 argument per line for functions, less than 80 chars
per line, use of spacing between logical groups of code, use of one line
if statements when doing fetch followed by comparison, use direct return
when no cleanup to be done.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

src/secret/secret_driver.c

 /*
  * secret_driver.c: local driver for secret manipulation API
  *
- * Copyright (C) 2009-2014 Red Hat, Inc.
+ * Copyright (C) 2009-2016 Red Hat, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -50,7 +50,7 @@ VIR_LOG_INIT("secret.secret_driver");
 
 enum { SECRET_MAX_XML_FILE = 10*1024*1024 };
 
- /* Internal driver state */
+/* Internal driver state */
 
 typedef struct _virSecretEntry virSecretEntry;
 typedef virSecretEntry *virSecretEntryPtr;
@@ -94,7 +94,8 @@ listUnlink(virSecretEntryPtr *pptr)
 }
 
 static void
-listInsert(virSecretEntryPtr *pptr, virSecretEntryPtr secret)
+listInsert(virSecretEntryPtr *pptr,
+           virSecretEntryPtr secret)
 {
     secret->next = *pptr;
     *pptr = secret;
@@ -128,7 +129,8 @@ secretFindByUUID(const unsigned char *uuid)
 }
 
 static virSecretEntryPtr
-secretFindByUsage(int usageType, const char *usageID)
+secretFindByUsage(int usageType,
+                  const char *usageID)
 {
     virSecretEntryPtr *pptr, s;
 
@@ -170,7 +172,9 @@ secretFindByUsage(int usageType, const char *usageID)
    "$basename.base64".  "$basename" is in both cases the base64-encoded UUID. */
 
 static int
-replaceFile(const char *filename, void *data, size_t size)
+replaceFile(const char *filename,
+            void *data,
+            size_t size)
 {
     char *tmp_path = NULL;
     int fd = -1, ret = -1;
@@ -217,14 +221,16 @@ replaceFile(const char *filename, void *data, size_t size)
 }
 
 static char *
-secretComputePath(const virSecretEntry *secret, const char *suffix)
+secretComputePath(const virSecretEntry *secret,
+                  const char *suffix)
 {
     char *ret;
     char uuidstr[VIR_UUID_STRING_BUFLEN];
 
     virUUIDFormat(secret->def->uuid, uuidstr);
 
-    ignore_value(virAsprintf(&ret, "%s/%s%s", driver->directory, uuidstr, suffix));
+    ignore_value(virAsprintf(&ret, "%s/%s%s", driver->directory,
+                             uuidstr, suffix));
     return ret;
 }
 
@@ -260,11 +266,10 @@ secretSaveDef(const virSecretEntry *secret)
     if (secretEnsureDirectory() < 0)
         goto cleanup;
 
-    filename = secretXMLPath(secret);
-    if (filename == NULL)
+    if (!(filename = secretXMLPath(secret)))
         goto cleanup;
-    xml = virSecretDefFormat(secret->def);
-    if (xml == NULL)
+
+    if (!(xml = virSecretDefFormat(secret->def)))
         goto cleanup;
 
     if (replaceFile(filename, xml, strlen(xml)) < 0)
@@ -290,9 +295,9 @@ secretSaveValue(const virSecretEntry *secret)
     if (secretEnsureDirectory() < 0)
         goto cleanup;
 
-    filename = secretBase64Path(secret);
-    if (filename == NULL)
+    if (!(filename = secretBase64Path(secret)))
         goto cleanup;
+
     base64_encode_alloc((const char *)secret->value, secret->value_size,
                         &base64);
     if (base64 == NULL) {
@@ -317,11 +322,10 @@ secretDeleteSaved(const virSecretEntry *secret)
     char *xml_filename = NULL, *value_filename = NULL;
     int ret = -1;
 
-    xml_filename = secretXMLPath(secret);
-    if (xml_filename == NULL)
+    if (!(xml_filename = secretXMLPath(secret)))
         goto cleanup;
-    value_filename = secretBase64Path(secret);
-    if (value_filename == NULL)
+
+    if (!(value_filename = secretBase64Path(secret)))
         goto cleanup;
 
     if (unlink(xml_filename) < 0 && errno != ENOENT)
@@ -364,12 +368,10 @@ secretLoadValue(virSecretEntryPtr secret)
     char *filename = NULL, *contents = NULL, *value = NULL;
     size_t value_size;
 
-    filename = secretBase64Path(secret);
-    if (filename == NULL)
+    if (!(filename = secretBase64Path(secret)))
         goto cleanup;
 
-    fd = open(filename, O_RDONLY);
-    if (fd == -1) {
+    if ((fd = open(filename, O_RDONLY)) == -1) {
         if (errno == ENOENT) {
             ret = 0;
             goto cleanup;
@@ -377,10 +379,12 @@ secretLoadValue(virSecretEntryPtr secret)
         virReportSystemError(errno, _("cannot open '%s'"), filename);
         goto cleanup;
     }
+
     if (fstat(fd, &st) < 0) {
         virReportSystemError(errno, _("cannot stat '%s'"), filename);
         goto cleanup;
     }
+
     if ((size_t)st.st_size != st.st_size) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("'%s' file does not fit in memory"), filename);
@@ -389,10 +393,12 @@ secretLoadValue(virSecretEntryPtr secret)
 
     if (VIR_ALLOC_N(contents, st.st_size) < 0)
         goto cleanup;
+
     if (saferead(fd, contents, st.st_size) != st.st_size) {
         virReportSystemError(errno, _("cannot read '%s'"), filename);
         goto cleanup;
     }
+
     VIR_FORCE_CLOSE(fd);
 
     if (!base64_decode_alloc(contents, st.st_size, &value, &value_size)) {
@@ -433,9 +439,10 @@ secretLoad(const char *xml_basename)
     if (virAsprintf(&xml_filename, "%s/%s", driver->directory,
                     xml_basename) < 0)
         goto cleanup;
-    def = virSecretDefParseFile(xml_filename);
-    if (def == NULL)
+
+    if (!(def = virSecretDefParseFile(xml_filename)))
         goto cleanup;
+
     VIR_FREE(xml_filename);
 
     if (secretLoadValidateUUID(def, xml_basename) < 0)
@@ -462,29 +469,28 @@ secretLoad(const char *xml_basename)
 static int
 loadSecrets(virSecretEntryPtr *dest)
 {
-    int ret = -1;
     DIR *dir = NULL;
     struct dirent *de;
     virSecretEntryPtr list = NULL;
 
-    dir = opendir(driver->directory);
-    if (dir == NULL) {
+    if (!(dir = opendir(driver->directory))) {
         if (errno == ENOENT)
             return 0;
         virReportSystemError(errno, _("cannot open '%s'"),
                              driver->directory);
-        goto cleanup;
+        return -1;
     }
+
     while (virDirRead(dir, &de, NULL) > 0) {
         virSecretEntryPtr secret;
 
         if (STREQ(de->d_name, ".") || STREQ(de->d_name, ".."))
             continue;
+
         if (!virFileHasSuffix(de->d_name, ".xml"))
             continue;
 
-        secret = secretLoad(de->d_name);
-        if (secret == NULL) {
+        if (!(secret = secretLoad(de->d_name))) {
             virErrorPtr err = virGetLastError();
 
             VIR_ERROR(_("Error reading secret: %s"),
@@ -492,6 +498,7 @@ loadSecrets(virSecretEntryPtr *dest)
             virResetError(err);
             continue;
         }
+
         listInsert(&list, secret);
     }
     /* Ignore error reported by readdir, if any.  It's better to keep the
@@ -504,15 +511,11 @@ loadSecrets(virSecretEntryPtr *dest)
         listInsert(dest, s);
     }
 
-    ret = 0;
-
- cleanup:
-    if (dir != NULL)
-        closedir(dir);
-    return ret;
+    closedir(dir);
+    return 0;
 }
 
- /* Driver functions */
+/* Driver functions */
 
 static int
 secretConnectNumOfSecrets(virConnectPtr conn)
@@ -537,7 +540,9 @@ secretConnectNumOfSecrets(virConnectPtr conn)
 }
 
 static int
-secretConnectListSecrets(virConnectPtr conn, char **uuids, int maxuuids)
+secretConnectListSecrets(virConnectPtr conn,
+                         char **uuids,
+                         int maxuuids)
 {
     size_t i;
     virSecretEntryPtr secret;
@@ -679,15 +684,15 @@ secretConnectListAllSecrets(virConnectPtr conn,
 
 
 static virSecretPtr
-secretLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
+secretLookupByUUID(virConnectPtr conn,
+                   const unsigned char *uuid)
 {
     virSecretPtr ret = NULL;
     virSecretEntryPtr secret;
 
     secretDriverLock();
 
-    secret = secretFindByUUID(uuid);
-    if (secret == NULL) {
+    if (!(secret = secretFindByUUID(uuid))) {
         char uuidstr[VIR_UUID_STRING_BUFLEN];
         virUUIDFormat(uuid, uuidstr);
         virReportError(VIR_ERR_NO_SECRET,
@@ -710,15 +715,16 @@ secretLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
 
 
 static virSecretPtr
-secretLookupByUsage(virConnectPtr conn, int usageType, const char *usageID)
+secretLookupByUsage(virConnectPtr conn,
+                    int usageType,
+                    const char *usageID)
 {
     virSecretPtr ret = NULL;
     virSecretEntryPtr secret;
 
     secretDriverLock();
 
-    secret = secretFindByUsage(usageType, usageID);
-    if (secret == NULL) {
+    if (!(secret = secretFindByUsage(usageType, usageID))) {
         virReportError(VIR_ERR_NO_SECRET,
                        _("no secret with matching usage '%s'"), usageID);
         goto cleanup;
@@ -739,7 +745,8 @@ secretLookupByUsage(virConnectPtr conn, int usageType, const char *usageID)
 
 
 static virSecretPtr
-secretDefineXML(virConnectPtr conn, const char *xml,
+secretDefineXML(virConnectPtr conn,
+                const char *xml,
                 unsigned int flags)
 {
     virSecretPtr ret = NULL;
@@ -749,8 +756,7 @@ secretDefineXML(virConnectPtr conn, const char *xml,
 
     virCheckFlags(0, NULL);
 
-    new_attrs = virSecretDefParseString(xml);
-    if (new_attrs == NULL)
+    if (!(new_attrs = virSecretDefParseString(xml)))
         return NULL;
 
     secretDriverLock();
@@ -758,16 +764,16 @@ secretDefineXML(virConnectPtr conn, const char *xml,
     if (virSecretDefineXMLEnsureACL(conn, new_attrs) < 0)
         goto cleanup;
 
-    secret = secretFindByUUID(new_attrs->uuid);
-    if (secret == NULL) {
-        /* No existing secret with same UUID, try look for matching usage instead */
+    if (!(secret = secretFindByUUID(new_attrs->uuid))) {
+        /* No existing secret with same UUID,
+         * try look for matching usage instead */
         const char *usageID = secretUsageIDForDef(new_attrs);
-        secret = secretFindByUsage(new_attrs->usage_type, usageID);
-        if (secret) {
+        if ((secret = secretFindByUsage(new_attrs->usage_type, usageID))) {
             char uuidstr[VIR_UUID_STRING_BUFLEN];
             virUUIDFormat(secret->def->uuid, uuidstr);
             virReportError(VIR_ERR_INTERNAL_ERROR,
-                           _("a secret with UUID %s already defined for use with %s"),
+                           _("a secret with UUID %s already defined for "
+                             "use with %s"),
                            uuidstr, usageID);
             goto cleanup;
         }
@@ -785,7 +791,8 @@ secretDefineXML(virConnectPtr conn, const char *xml,
             char uuidstr[VIR_UUID_STRING_BUFLEN];
             virUUIDFormat(secret->def->uuid, uuidstr);
             virReportError(VIR_ERR_INTERNAL_ERROR,
-                           _("a secret with UUID %s is already defined for use with %s"),
+                           _("a secret with UUID %s is already defined "
+                             "for use with %s"),
                            uuidstr, oldUsageID);
             goto cleanup;
         }
@@ -853,7 +860,8 @@ secretDefineXML(virConnectPtr conn, const char *xml,
 }
 
 static char *
-secretGetXMLDesc(virSecretPtr obj, unsigned int flags)
+secretGetXMLDesc(virSecretPtr obj,
+                 unsigned int flags)
 {
     char *ret = NULL;
     virSecretEntryPtr secret;
@@ -862,8 +870,7 @@ secretGetXMLDesc(virSecretPtr obj, unsigned int flags)
 
     secretDriverLock();
 
-    secret = secretFindByUUID(obj->uuid);
-    if (secret == NULL) {
+    if (!(secret = secretFindByUUID(obj->uuid))) {
         char uuidstr[VIR_UUID_STRING_BUFLEN];
         virUUIDFormat(obj->uuid, uuidstr);
         virReportError(VIR_ERR_NO_SECRET,
@@ -883,8 +890,10 @@ secretGetXMLDesc(virSecretPtr obj, unsigned int flags)
 }
 
 static int
-secretSetValue(virSecretPtr obj, const unsigned char *value,
-               size_t value_size, unsigned int flags)
+secretSetValue(virSecretPtr obj,
+               const unsigned char *value,
+               size_t value_size,
+               unsigned int flags)
 {
     int ret = -1;
     unsigned char *old_value, *new_value;
@@ -898,8 +907,7 @@ secretSetValue(virSecretPtr obj, const unsigned char *value,
 
     secretDriverLock();
 
-    secret = secretFindByUUID(obj->uuid);
-    if (secret == NULL) {
+    if (!(secret = secretFindByUUID(obj->uuid))) {
         char uuidstr[VIR_UUID_STRING_BUFLEN];
         virUUIDFormat(obj->uuid, uuidstr);
         virReportError(VIR_ERR_NO_SECRET,
@@ -945,7 +953,9 @@ secretSetValue(virSecretPtr obj, const unsigned char *value,
 }
 
 static unsigned char *
-secretGetValue(virSecretPtr obj, size_t *value_size, unsigned int flags,
+secretGetValue(virSecretPtr obj,
+               size_t *value_size,
+               unsigned int flags,
                unsigned int internalFlags)
 {
     unsigned char *ret = NULL;
@@ -955,8 +965,7 @@ secretGetValue(virSecretPtr obj, size_t *value_size, unsigned int flags,
 
     secretDriverLock();
 
-    secret = secretFindByUUID(obj->uuid);
-    if (secret == NULL) {
+    if (!(secret = secretFindByUUID(obj->uuid))) {
         char uuidstr[VIR_UUID_STRING_BUFLEN];
         virUUIDFormat(obj->uuid, uuidstr);
         virReportError(VIR_ERR_NO_SECRET,
@@ -1001,8 +1010,7 @@ secretUndefine(virSecretPtr obj)
 
     secretDriverLock();
 
-    secret = secretFindByUUID(obj->uuid);
-    if (secret == NULL) {
+    if (!(secret = secretFindByUUID(obj->uuid))) {
         char uuidstr[VIR_UUID_STRING_BUFLEN];
         virUUIDFormat(obj->uuid, uuidstr);
         virReportError(VIR_ERR_NO_SECRET,
@@ -1079,8 +1087,7 @@ secretStateInitialize(bool privileged,
         if (VIR_STRDUP(base, SYSCONFDIR "/libvirt") < 0)
             goto error;
     } else {
-        base = virGetUserConfigDirectory();
-        if (!base)
+        if (!(base = virGetUserConfigDirectory()))
             goto error;
     }
     if (virAsprintf(&driver->directory, "%s/secrets", base) < 0)
@@ -1113,8 +1120,9 @@ secretStateReload(void)
     if (loadSecrets(&new_secrets) < 0)
         goto end;
 
-    /* Keep ephemeral secrets from current state.  Discard non-ephemeral secrets
-       that were removed by the secrets directory.  */
+    /* Keep ephemeral secrets from current state.
+     * Discard non-ephemeral secrets that were removed
+     * by the secrets directory.  */
     while (driver->secrets != NULL) {
         virSecretEntryPtr s;