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Diffstat (limited to 'launcher/wildcard.c')
| -rw-r--r-- | launcher/wildcard.c | 495 |
1 files changed, 0 insertions, 495 deletions
diff --git a/launcher/wildcard.c b/launcher/wildcard.c deleted file mode 100644 index 7c5ca5e..0000000 --- a/launcher/wildcard.c +++ /dev/null @@ -1,495 +0,0 @@ -/* - * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -/* - * Class-Path Wildcards - * - * The syntax for wildcards is a single asterisk. The class path - * foo/"*", e.g., loads all jar files in the directory named foo. - * (This requires careful quotation when used in shell scripts.) - * - * Only files whose names end in .jar or .JAR are matched. - * Files whose names end in .zip, or which have a particular - * magic number, regardless of filename extension, are not - * matched. - * - * Files are considered regardless of whether or not they are - * "hidden" in the UNIX sense, i.e., have names beginning with '.'. - * - * A wildcard only matches jar files, not class files in the same - * directory. If you want to load both class files and jar files from - * a single directory foo then you can say foo:foo/"*", or foo/"*":foo - * if you want the jar files to take precedence. - * - * Subdirectories are not searched recursively, i.e., foo/"*" only - * looks for jar files in foo, not in foo/bar, foo/baz, etc. - * - * Expansion of wildcards is done early, prior to the invocation of a - * program's main method, rather than late, during the class-loading - * process itself. Each element of the input class path containing a - * wildcard is replaced by the (possibly empty) sequence of elements - * generated by enumerating the jar files in the named directory. If - * the directory foo contains a.jar, b.jar, and c.jar, - * e.g., then the class path foo/"*" is expanded into - * foo/a.jar:foo/b.jar:foo/c.jar, and that string would be the value - * of the system property java.class.path. - * - * The order in which the jar files in a directory are enumerated in - * the expanded class path is not specified and may vary from platform - * to platform and even from moment to moment on the same machine. A - * well-constructed application should not depend upon any particular - * order. If a specific order is required then the jar files can be - * enumerated explicitly in the class path. - * - * The CLASSPATH environment variable is not treated any differently - * from the -classpath (equiv. -cp) command-line option, - * i.e. wildcards are honored in all these cases. - * - * Class-path wildcards are not honored in the Class-Path jar-manifest - * header. - * - * Class-path wildcards are honored not only by the Java launcher but - * also by most other command-line tools that accept class paths, and - * in particular by javac and javadoc. - * - * Class-path wildcards are not honored in any other kind of path, and - * especially not in the bootstrap class path, which is a mere - * artifact of our implementation and not something that developers - * should use. - * - * Classpath wildcards are only expanded in the Java launcher code, - * supporting the use of wildcards on the command line and in the - * CLASSPATH environment variable. We do not support the use of - * wildcards by applications that embed the JVM. - */ - -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include "java.h" /* Strictly for PATH_SEPARATOR/FILE_SEPARATOR */ -#include "jli_util.h" - -#ifdef _WIN32 -#include <windows.h> -#else /* Unix */ -#include <unistd.h> -#include <dirent.h> -#endif /* Unix */ - -static int -exists(const char* filename) -{ -#ifdef _WIN32 - return _access(filename, 0) == 0; -#else - return access(filename, F_OK) == 0; -#endif -} - -#define NEW_(TYPE) ((TYPE) JLI_MemAlloc(sizeof(struct TYPE##_))) - -/* - * Wildcard directory iteration. - * WildcardIterator_for(wildcard) returns an iterator. - * Each call to that iterator's next() method returns the basename - * of an entry in the wildcard's directory. The basename's memory - * belongs to the iterator. The caller is responsible for prepending - * the directory name and file separator, if necessary. - * When done with the iterator, call the close method to clean up. - */ -typedef struct WildcardIterator_* WildcardIterator; - -#ifdef _WIN32 -struct WildcardIterator_ -{ - HANDLE handle; - char *firstFile; /* Stupid FindFirstFile...FindNextFile */ -}; - -static WildcardIterator -WildcardIterator_for(const char *wildcard) -{ - WIN32_FIND_DATA find_data; - WildcardIterator it = NEW_(WildcardIterator); - HANDLE handle = FindFirstFile(wildcard, &find_data); - if (handle == INVALID_HANDLE_VALUE) - return NULL; - it->handle = handle; - it->firstFile = find_data.cFileName; - return it; -} - -static char * -WildcardIterator_next(WildcardIterator it) -{ - WIN32_FIND_DATA find_data; - if (it->firstFile != NULL) { - char *firstFile = it->firstFile; - it->firstFile = NULL; - return firstFile; - } - return FindNextFile(it->handle, &find_data) - ? find_data.cFileName : NULL; -} - -static void -WildcardIterator_close(WildcardIterator it) -{ - if (it) { - FindClose(it->handle); - JLI_MemFree(it->firstFile); - JLI_MemFree(it); - } -} - -#else /* Unix */ -struct WildcardIterator_ -{ - DIR *dir; -}; - -static WildcardIterator -WildcardIterator_for(const char *wildcard) -{ - DIR *dir; - int wildlen = strlen(wildcard); - if (wildlen < 2) { - dir = opendir("."); - } else { - char *dirname = JLI_StringDup(wildcard); - dirname[wildlen - 1] = '\0'; - dir = opendir(dirname); - JLI_MemFree(dirname); - } - if (dir == NULL) - return NULL; - else { - WildcardIterator it = NEW_(WildcardIterator); - it->dir = dir; - return it; - } -} - -static char * -WildcardIterator_next(WildcardIterator it) -{ - struct dirent* dirp = readdir(it->dir); - return dirp ? dirp->d_name : NULL; -} - -static void -WildcardIterator_close(WildcardIterator it) -{ - if (it) { - closedir(it->dir); - JLI_MemFree(it); - } -} -#endif /* Unix */ - -static int -equal(const char *s1, const char *s2) -{ - return strcmp(s1, s2) == 0; -} - -/* - * FileList ADT - a dynamic list of C filenames - */ -struct FileList_ -{ - char **files; - int size; - int capacity; -}; -typedef struct FileList_ *FileList; - -static FileList -FileList_new(int capacity) -{ - FileList fl = NEW_(FileList); - fl->capacity = capacity; - fl->files = (char **) JLI_MemAlloc(capacity * sizeof(fl->files[0])); - fl->size = 0; - return fl; -} - -#ifdef DEBUG_WILDCARD -static void -FileList_print(FileList fl) -{ - int i; - putchar('['); - for (i = 0; i < fl->size; i++) { - if (i > 0) printf(", "); - printf("\"%s\"",fl->files[i]); - } - putchar(']'); -} -#endif - -static void -FileList_free(FileList fl) -{ - if (fl) { - if (fl->files) { - int i; - for (i = 0; i < fl->size; i++) - JLI_MemFree(fl->files[i]); - JLI_MemFree(fl->files); - } - JLI_MemFree(fl); - } -} - -static void -FileList_ensureCapacity(FileList fl, int capacity) -{ - if (fl->capacity < capacity) { - while (fl->capacity < capacity) - fl->capacity *= 2; - fl->files = JLI_MemRealloc(fl->files, - fl->capacity * sizeof(fl->files[0])); - } -} - -static void -FileList_add(FileList fl, char *file) -{ - FileList_ensureCapacity(fl, fl->size+1); - fl->files[fl->size++] = file; -} - -static void -FileList_addSubstring(FileList fl, const char *beg, int len) -{ - char *filename = (char *) JLI_MemAlloc(len+1); - memcpy(filename, beg, len); - filename[len] = '\0'; - FileList_ensureCapacity(fl, fl->size+1); - fl->files[fl->size++] = filename; -} - -static char * -FileList_join(FileList fl, char sep) -{ - int i; - int size; - char *path; - char *p; - for (i = 0, size = 1; i < fl->size; i++) - size += strlen(fl->files[i]) + 1; - - path = JLI_MemAlloc(size); - - for (i = 0, p = path; i < fl->size; i++) { - int len = strlen(fl->files[i]); - if (i > 0) *p++ = sep; - memcpy(p, fl->files[i], len); - p += len; - } - *p = '\0'; - - return path; -} - -static FileList -FileList_split(const char *path, char sep) -{ - const char *p, *q; - int len = strlen(path); - int count; - FileList fl; - for (count = 1, p = path; p < path + len; p++) - count += (*p == sep); - fl = FileList_new(count); - for (p = path;;) { - for (q = p; q <= path + len; q++) { - if (*q == sep || *q == '\0') { - FileList_addSubstring(fl, p, q - p); - if (*q == '\0') - return fl; - p = q + 1; - } - } - } -} - -static int -isJarFileName(const char *filename) -{ - int len = strlen(filename); - return (len >= 4) && - (filename[len - 4] == '.') && - (equal(filename + len - 3, "jar") || - equal(filename + len - 3, "JAR")) && - /* Paranoia: Maybe filename is "DIR:foo.jar" */ - (strchr(filename, PATH_SEPARATOR) == NULL); -} - -static char * -wildcardConcat(const char *wildcard, const char *basename) -{ - int wildlen = strlen(wildcard); - int baselen = strlen(basename); - char *filename = (char *) JLI_MemAlloc(wildlen + baselen); - /* Replace the trailing '*' with basename */ - memcpy(filename, wildcard, wildlen-1); - memcpy(filename+wildlen-1, basename, baselen+1); - return filename; -} - -static FileList -wildcardFileList(const char *wildcard) -{ - const char *basename; - FileList fl = FileList_new(16); - WildcardIterator it = WildcardIterator_for(wildcard); - if (it == NULL) - return NULL; - while ((basename = WildcardIterator_next(it)) != NULL) - if (isJarFileName(basename)) - FileList_add(fl, wildcardConcat(wildcard, basename)); - WildcardIterator_close(it); - return fl; -} - -static int -isWildcard(const char *filename) -{ - int len = strlen(filename); - return (len > 0) && - (filename[len - 1] == '*') && - (len == 1 || IS_FILE_SEPARATOR(filename[len - 2])) && - (! exists(filename)); -} - -static void -FileList_expandWildcards(FileList fl) -{ - int i, j; - for (i = 0; i < fl->size; i++) { - if (isWildcard(fl->files[i])) { - FileList expanded = wildcardFileList(fl->files[i]); - if (expanded != NULL && expanded->size > 0) { - JLI_MemFree(fl->files[i]); - FileList_ensureCapacity(fl, fl->size + expanded->size); - for (j = fl->size - 1; j >= i+1; j--) - fl->files[j+expanded->size-1] = fl->files[j]; - for (j = 0; j < expanded->size; j++) - fl->files[i+j] = expanded->files[j]; - i += expanded->size - 1; - fl->size += expanded->size - 1; - /* fl expropriates expanded's elements. */ - expanded->size = 0; - } - FileList_free(expanded); - } - } -} - -const char * -JLI_WildcardExpandClasspath(const char *classpath) -{ - char *expanded; - FileList fl; - - if (strchr(classpath, '*') == NULL) - return classpath; - fl = FileList_split(classpath, PATH_SEPARATOR); - FileList_expandWildcards(fl); - expanded = FileList_join(fl, PATH_SEPARATOR); - FileList_free(fl); - if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) - printf("Expanded wildcards:\n" - " before: \"%s\"\n" - " after : \"%s\"\n", - classpath, expanded); - return expanded; -} - -#ifdef DEBUG_WILDCARD -static void -wildcardExpandArgv(const char ***argv) -{ - int i; - for (i = 0; (*argv)[i]; i++) { - if (equal((*argv)[i], "-cp") || - equal((*argv)[i], "-classpath")) { - i++; - (*argv)[i] = wildcardExpandClasspath((*argv)[i]); - } - } -} - -static void -debugPrintArgv(char *argv[]) -{ - int i; - putchar('['); - for (i = 0; argv[i]; i++) { - if (i > 0) printf(", "); - printf("\"%s\"", argv[i]); - } - printf("]\n"); -} - -int -main(int argc, char *argv[]) -{ - argv[0] = "java"; - wildcardExpandArgv((const char***)&argv); - debugPrintArgv(argv); - /* execvp("java", argv); */ - return 0; -} -#endif /* DEBUG_WILDCARD */ - -/* Cute little perl prototype implementation.... - -my $sep = ($^O =~ /^(Windows|cygwin)/) ? ";" : ":"; - -sub expand($) { - opendir DIR, $_[0] or return $_[0]; - join $sep, map {"$_[0]/$_"} grep {/\.(jar|JAR)$/} readdir DIR; -} - -sub munge($) { - join $sep, - map {(! -r $_ and s/[\/\\]+\*$//) ? expand $_ : $_} split $sep, $_[0]; -} - -for (my $i = 0; $i < @ARGV - 1; $i++) { - $ARGV[$i+1] = munge $ARGV[$i+1] if $ARGV[$i] =~ /^-c(p|lasspath)$/; -} - -$ENV{CLASSPATH} = munge $ENV{CLASSPATH} if exists $ENV{CLASSPATH}; -@ARGV = ("java", @ARGV); -print "@ARGV\n"; -exec @ARGV; - -*/ |