Format transaction.c with clang-format

To improve readability and encourage consistency in PRs.

.clang-format

@@ -0,0 +1,111 @@
+# clang-format configuration file. For more information, see:
+#
+#   https://clang.llvm.org/docs/ClangFormat.html
+#   https://clang.llvm.org/docs/ClangFormatStyleOptions.html
+#
+---
+AccessModifierOffset: -4
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Left
+AlignOperands: true
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: false
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:
+  AfterClass: false
+  AfterControlStatement: false
+  AfterEnum: false
+  AfterFunction: true
+  AfterNamespace: true
+  AfterObjCDeclaration: false
+  AfterStruct: false
+  AfterUnion: false
+  AfterExternBlock: false
+  BeforeCatch: false
+  BeforeElse: false
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeComma
+BreakStringLiterals: false
+ColumnLimit: 120
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 8
+ContinuationIndentWidth: 8
+DerivePointerAlignment: false
+DisableFormat: false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: false
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: '^"(allez)/'
+    Priority: 2
+    SortPriority: 2
+    CaseSensitive: true
+  - Regex: '.*'
+    Priority: 1
+    SortPriority: 0
+IndentCaseLabels: false
+IndentGotoLabels: false
+IndentPPDirectives: None
+IndentWidth: 8
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 8
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: true
+
+# Taken from git's rules
+PenaltyBreakAssignment: 10
+PenaltyBreakBeforeFirstCallParameter: 30
+PenaltyBreakComment: 10
+PenaltyBreakFirstLessLess: 0
+PenaltyBreakString: 10
+PenaltyExcessCharacter: 2
+PenaltyReturnTypeOnItsOwnLine: 60
+
+PointerAlignment: Right
+ReflowComments: false
+SortIncludes: true
+SortUsingDeclarations: false
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatementsExceptForEachMacros
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: false
+SpacesInContainerLiterals: false
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+TabWidth: 8
+UseTab: Always
+...

transaction.c

@@ -9,29 +9,23 @@
 #define PAM_CONST const
 #endif
 
-int cb_pam_conv(
-	int num_msg,
-	PAM_CONST struct pam_message **msg,
-	struct pam_response **resp,
-	void *appdata_ptr)
+int cb_pam_conv(int num_msg, PAM_CONST struct pam_message **msg, struct pam_response **resp, void *appdata_ptr)
 {
 	*resp = calloc(num_msg, sizeof **resp);
-	if (num_msg <= 0 || num_msg > PAM_MAX_NUM_MSG) {
+	if (num_msg <= 0 || num_msg > PAM_MAX_NUM_MSG)
 		return PAM_CONV_ERR;
-	}
-	if (!*resp) {
+
+	if (!*resp)
 		return PAM_BUF_ERR;
-	}
+
 	for (size_t i = 0; i < num_msg; ++i) {
-		struct cbPAMConv_return result = cbPAMConv(
-				msg[i]->msg_style,
-				(char *)msg[i]->msg,
-				(uintptr_t)appdata_ptr);
-		if (result.r1 != PAM_SUCCESS) {
+		struct cbPAMConv_return result = cbPAMConv(msg[i]->msg_style, (char *)msg[i]->msg, (uintptr_t)appdata_ptr);
+		if (result.r1 != PAM_SUCCESS)
 			goto error;
-		}
+
 		(*resp)[i].resp = result.r0;
 	}
+
 	return PAM_SUCCESS;
 error:
 	for (size_t i = 0; i < num_msg; ++i) {
@@ -40,6 +34,7 @@ error:
 			free((*resp)[i].resp);
 		}
 	}
+
 	memset(*resp, 0, num_msg * sizeof *resp);
 	free(*resp);
 	*resp = NULL;
@@ -52,11 +47,15 @@ void init_pam_conv(struct pam_conv *conv, uintptr_t appdata)
 	conv->appdata_ptr = (void *)appdata;
 }
 
-// pam_start_confdir is a recent PAM api to declare a confdir (mostly for tests)
-// weaken the linking dependency to detect if it’s present.
-int pam_start_confdir(const char *service_name, const char *user, const struct pam_conv *pam_conversation, const char *confdir, pam_handle_t **pamh) __attribute__ ((weak));
-int check_pam_start_confdir(void) {
+// pam_start_confdir is a recent PAM api to declare a confdir (mostly for
+// tests) weaken the linking dependency to detect if it’s present.
+int pam_start_confdir(const char *service_name, const char *user, const struct pam_conv *pam_conversation,
+		      const char *confdir, pam_handle_t **pamh) __attribute__((weak));
+
+int check_pam_start_confdir(void)
+{
 	if (pam_start_confdir == NULL)
 		return 1;
+
 	return 0;
 }