Inital import.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
diff --git a/util/make_errors.go b/util/make_errors.go
new file mode 100644
index 0000000..3c94766
--- /dev/null
+++ b/util/make_errors.go
@@ -0,0 +1,421 @@
+// Copyright (c) 2014, Google Inc.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+package main
+
+import (
+ "bufio"
+ "flag"
+ "fmt"
+ "io"
+ "os"
+ "path/filepath"
+ "sort"
+ "strconv"
+ "strings"
+ "unicode"
+)
+
+var resetFlag *bool = flag.Bool("reset", false, "If true, ignore current assignments and reassign from scratch")
+
+func makeErrors(reset bool) error {
+ dirName, err := os.Getwd()
+ if err != nil {
+ return err
+ }
+
+ lib := filepath.Base(dirName)
+ headerPath := lib + ".h"
+ sourcePath := lib + "_error.c"
+
+ headerFile, err := os.Open(headerPath)
+ if err != nil {
+ if os.IsNotExist(err) {
+ return fmt.Errorf("No %s in current directory. Run in the right directory or touch the file.", headerPath)
+ }
+
+ return err
+ }
+
+ prefix := strings.ToUpper(lib)
+ functions, reasons, err := parseHeader(prefix, headerFile)
+ headerFile.Close()
+
+ if reset {
+ err = nil
+ functions = make(map[string]int)
+ reasons = make(map[string]int)
+ }
+
+ if err != nil {
+ return err
+ }
+
+ dir, err := os.Open(".")
+ if err != nil {
+ return err
+ }
+ defer dir.Close()
+
+ filenames, err := dir.Readdirnames(-1)
+ if err != nil {
+ return err
+ }
+
+ for _, name := range filenames {
+ if !strings.HasSuffix(name, ".c") {
+ continue
+ }
+
+ if err := addFunctionsAndReasons(functions, reasons, name, prefix); err != nil {
+ return err
+ }
+ }
+
+ assignNewValues(functions)
+ assignNewValues(reasons)
+
+ headerFile, err = os.Open(headerPath)
+ if err != nil {
+ return err
+ }
+ defer headerFile.Close()
+
+ newHeaderFile, err := os.OpenFile(headerPath + ".tmp", os.O_CREATE | os.O_WRONLY | os.O_TRUNC, 0666)
+ if err != nil {
+ return err
+ }
+ defer newHeaderFile.Close()
+
+ if err := writeHeaderFile(newHeaderFile, headerFile, prefix, functions, reasons); err != nil {
+ return err
+ }
+ os.Rename(headerPath + ".tmp", headerPath)
+
+ sourceFile, err := os.OpenFile(sourcePath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
+ if err != nil {
+ return err
+ }
+ defer sourceFile.Close()
+
+ fmt.Fprintf(sourceFile, `/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/err.h>
+
+#include "%s.h"
+
+const ERR_STRING_DATA %s_error_string_data[] = {
+`, lib, prefix)
+ outputStrings(sourceFile, lib, typeFunctions, functions)
+ outputStrings(sourceFile, lib, typeReasons, reasons)
+
+ sourceFile.WriteString(" {0, NULL},\n};\n")
+
+ return nil
+}
+
+type assignment struct {
+ key string
+ value int
+}
+
+type assignmentsSlice []assignment
+
+func (a assignmentsSlice) Len() int {
+ return len(a)
+}
+
+func (a assignmentsSlice) Less(i, j int) bool {
+ return a[i].value < a[j].value
+}
+
+func (a assignmentsSlice) Swap(i, j int) {
+ a[i], a[j] = a[j], a[i]
+}
+
+func outputAssignments(w io.Writer, assignments map[string]int) {
+ var sorted assignmentsSlice
+
+ for key, value := range assignments {
+ sorted = append(sorted, assignment{key, value})
+ }
+
+ sort.Sort(sorted)
+
+ for _, assignment := range sorted {
+ fmt.Fprintf(w, "#define %s %d\n", assignment.key, assignment.value)
+ }
+}
+
+func parseDefineLine(line, lib string) (typ int, key string, value int, ok bool) {
+ if !strings.HasPrefix(line, "#define ") {
+ return
+ }
+
+ fields := strings.Fields(line)
+ if len(fields) != 3 {
+ return
+ }
+
+ funcPrefix := lib + "_F_"
+ reasonPrefix := lib + "_R_"
+
+ key = fields[1]
+ switch {
+ case strings.HasPrefix(key, funcPrefix):
+ typ = typeFunctions
+ case strings.HasPrefix(key, reasonPrefix):
+ typ = typeReasons
+ default:
+ return
+ }
+
+ var err error
+ if value, err = strconv.Atoi(fields[2]); err != nil {
+ return
+ }
+
+ ok = true
+ return
+}
+
+func writeHeaderFile(w io.Writer, headerFile io.Reader, lib string, functions, reasons map[string]int) error {
+ var last []byte
+ var haveLast, sawDefine bool
+ newLine := []byte("\n")
+
+ scanner := bufio.NewScanner(headerFile)
+ for scanner.Scan() {
+ line := scanner.Text()
+ _, _, _, ok := parseDefineLine(line, lib)
+ if ok {
+ sawDefine = true
+ continue
+ }
+
+ if haveLast {
+ w.Write(last)
+ w.Write(newLine)
+ }
+
+ if len(line) > 0 || !sawDefine {
+ last = []byte(line)
+ haveLast = true
+ } else {
+ haveLast = false
+ }
+ sawDefine = false
+ }
+
+ if err := scanner.Err(); err != nil {
+ return err
+ }
+
+ outputAssignments(w, functions)
+ outputAssignments(w, reasons)
+ w.Write(newLine)
+
+ if haveLast {
+ w.Write(last)
+ w.Write(newLine)
+ }
+
+ return nil
+}
+
+const (
+ typeFunctions = iota
+ typeReasons
+)
+
+func outputStrings(w io.Writer, lib string, ty int, assignments map[string]int) {
+ lib = strings.ToUpper(lib)
+ prefixLen := len(lib + "_F_")
+
+ keys := make([]string, 0, len(assignments))
+ for key := range assignments {
+ keys = append(keys, key)
+ }
+ sort.Strings(keys)
+
+ for _, key := range keys {
+ var pack string
+ if ty == typeFunctions {
+ pack = key + ", 0"
+ } else {
+ pack = "0, " + key
+ }
+
+ fmt.Fprintf(w, " {ERR_PACK(ERR_LIB_%s, %s), \"%s\"},\n", lib, pack, key[prefixLen:])
+ }
+}
+
+func assignNewValues(assignments map[string]int) {
+ max := 99
+
+ for _, value := range assignments {
+ if value > max {
+ max = value
+ }
+ }
+
+ max++
+
+ for key, value := range assignments {
+ if value == -1 {
+ assignments[key] = max
+ max++
+ }
+ }
+}
+
+func handleDeclareMacro(line, join, macroName string, m map[string]int) {
+ if i := strings.Index(line, macroName); i >= 0 {
+ contents := line[i + len(macroName):]
+ if i := strings.Index(contents, ")"); i >= 0 {
+ contents = contents[:i]
+ args := strings.Split(contents, ",")
+ for i := range args {
+ args[i] = strings.TrimSpace(args[i])
+ }
+ if len(args) != 2 {
+ panic("Bad macro line: " + line)
+ }
+ token := args[0] + join + args[1]
+ if _, ok := m[token]; !ok {
+ m[token] = -1
+ }
+ }
+ }
+}
+
+func addFunctionsAndReasons(functions, reasons map[string]int, filename, prefix string) error {
+ file, err := os.Open(filename)
+ if err != nil {
+ return err
+ }
+ defer file.Close()
+
+ prefix += "_"
+ reasonPrefix := prefix + "R_"
+ var currentFunction string
+
+ scanner := bufio.NewScanner(file)
+ for scanner.Scan() {
+ line := scanner.Text()
+
+ if len(line) > 0 && unicode.IsLetter(rune(line[0])) {
+ /* Function start */
+ fields := strings.Fields(line)
+ for _, field := range fields {
+ if i := strings.Index(field, "("); i != -1 {
+ f := field[:i]
+ // The return type of some functions is
+ // a macro that contains a "(".
+ if f == "STACK_OF" {
+ continue
+ }
+ currentFunction = f
+ for len(currentFunction) > 0 && currentFunction[0] == '*' {
+ currentFunction = currentFunction[1:]
+ }
+ break
+ }
+ }
+ }
+
+ if strings.Contains(line, "OPENSSL_PUT_ERROR(") {
+ functionToken := prefix + "F_" + currentFunction
+ if _, ok := functions[functionToken]; !ok {
+ functions[functionToken] = -1
+ }
+ }
+
+ handleDeclareMacro(line, "_R_", "OPENSSL_DECLARE_ERROR_REASON(", reasons)
+ handleDeclareMacro(line, "_F_", "OPENSSL_DECLARE_ERROR_FUNCTION(", functions)
+
+ for len(line) > 0 {
+ i := strings.Index(line, prefix)
+ if i == -1 {
+ break
+ }
+
+ line = line[i:]
+ end := strings.IndexFunc(line, func(r rune) bool {
+ return !(r == '_' || (r >= 'A' && r <= 'Z') || (r >= '0' && r <= '9'))
+ })
+ if end == -1 {
+ end = len(line)
+ }
+
+ var token string
+ token, line = line[:end], line[end:]
+
+ switch {
+ case strings.HasPrefix(token, reasonPrefix):
+ if _, ok := reasons[token]; !ok {
+ reasons[token] = -1
+ }
+ }
+ }
+ }
+
+ return scanner.Err()
+}
+
+func parseHeader(lib string, file io.Reader) (functions, reasons map[string]int, err error) {
+ functions = make(map[string]int)
+ reasons = make(map[string]int)
+
+ scanner := bufio.NewScanner(file)
+ for scanner.Scan() {
+ typ, key, value, ok := parseDefineLine(scanner.Text(), lib)
+ if !ok {
+ continue
+ }
+
+ switch typ {
+ case typeFunctions:
+ functions[key] = value
+ case typeReasons:
+ reasons[key] = value
+ default:
+ panic("internal error")
+ }
+ }
+
+ err = scanner.Err()
+ return
+}
+
+func main() {
+ flag.Parse()
+
+ if err := makeErrors(*resetFlag); err != nil {
+ fmt.Fprintf(os.Stderr, "%s\n", err)
+ os.Exit(1)
+ }
+}
