Mercurial > hg > octave-nkf > gnulib-hg
annotate lib/javaversion.c @ 10778:ddc567d280d1
Treat Haiku like BeOS.
| author | Ingo Weinhold <ingo_weinhold@gmx.de> |
|---|---|
| date | Mon, 10 Nov 2008 12:30:58 +0100 |
| parents | 7c9d441b72fc |
| children | e8d2c6fc33ad |
| rev | line source |
|---|---|
| 7018 | 1 /* Determine the Java version supported by javaexec. |
|
10197
d079dd7b69bc
Add termsigp argument to execute() and wait_process().
Bruno Haible <bruno@clisp.org>
parents:
9309
diff
changeset
|
2 Copyright (C) 2006-2008 Free Software Foundation, Inc. |
| 7018 | 3 Written by Bruno Haible <bruno@clisp.org>, 2006. |
| 4 | |
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9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9161
diff
changeset
|
5 This program is free software: you can redistribute it and/or modify |
| 7018 | 6 it under the terms of the GNU General Public License as published by |
|
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9161
diff
changeset
|
7 the Free Software Foundation; either version 3 of the License, or |
|
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9161
diff
changeset
|
8 (at your option) any later version. |
| 7018 | 9 |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
|
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9161
diff
changeset
|
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 7018 | 17 |
|
7304
1c4ed7637c24
Include <config.h> unconditionally.
Bruno Haible <bruno@clisp.org>
parents:
7018
diff
changeset
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18 #include <config.h> |
| 7018 | 19 |
| 20 /* Specification. */ | |
| 21 #include "javaversion.h" | |
| 22 | |
| 23 #include <errno.h> | |
| 24 #include <stdbool.h> | |
| 25 #include <stdio.h> | |
| 26 | |
| 27 #if ENABLE_RELOCATABLE | |
| 28 # include "relocatable.h" | |
| 29 #else | |
| 30 # define relocate(pathname) (pathname) | |
| 31 #endif | |
| 32 | |
| 33 #include "javaexec.h" | |
| 34 #include "pipe.h" | |
| 35 #include "wait-process.h" | |
| 36 #include "error.h" | |
| 37 #include "gettext.h" | |
| 38 | |
| 39 #define _(str) gettext (str) | |
| 40 | |
|
10722
7c9d441b72fc
Fix a clash between the type DATADIR on Windows and the macro DATADIR.
Bruno Haible <bruno@clisp.org>
parents:
10197
diff
changeset
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41 /* Get PKGDATADIR. */ |
|
7c9d441b72fc
Fix a clash between the type DATADIR on Windows and the macro DATADIR.
Bruno Haible <bruno@clisp.org>
parents:
10197
diff
changeset
|
42 #include "configmake.h" |
|
7c9d441b72fc
Fix a clash between the type DATADIR on Windows and the macro DATADIR.
Bruno Haible <bruno@clisp.org>
parents:
10197
diff
changeset
|
43 |
| 7018 | 44 |
| 45 struct locals | |
| 46 { | |
| 47 /* OUT */ | |
| 48 char *line; | |
| 49 }; | |
| 50 | |
| 51 static bool | |
| 52 execute_and_read_line (const char *progname, | |
| 53 const char *prog_path, char **prog_argv, | |
| 54 void *private_data) | |
| 55 { | |
| 56 struct locals *l = (struct locals *) private_data; | |
| 57 pid_t child; | |
| 58 int fd[1]; | |
| 59 FILE *fp; | |
| 60 char *line; | |
| 61 size_t linesize; | |
| 62 size_t linelen; | |
| 63 int exitstatus; | |
| 64 | |
| 65 /* Open a pipe to the JVM. */ | |
| 66 child = create_pipe_in (progname, prog_path, prog_argv, DEV_NULL, false, | |
| 67 true, false, fd); | |
| 68 | |
| 69 if (child == -1) | |
| 70 return false; | |
| 71 | |
| 72 /* Retrieve its result. */ | |
| 73 fp = fdopen (fd[0], "r"); | |
| 74 if (fp == NULL) | |
| 75 { | |
| 76 error (0, errno, _("fdopen() failed")); | |
| 77 return false; | |
| 78 } | |
| 79 | |
| 80 line = NULL; linesize = 0; | |
| 81 linelen = getline (&line, &linesize, fp); | |
| 82 if (linelen == (size_t)(-1)) | |
| 83 { | |
| 84 error (0, 0, _("%s subprocess I/O error"), progname); | |
| 85 return false; | |
| 86 } | |
| 87 if (linelen > 0 && line[linelen - 1] == '\n') | |
| 88 line[linelen - 1] = '\0'; | |
| 89 | |
| 90 fclose (fp); | |
| 91 | |
| 92 /* Remove zombie process from process list, and retrieve exit status. */ | |
|
10197
d079dd7b69bc
Add termsigp argument to execute() and wait_process().
Bruno Haible <bruno@clisp.org>
parents:
9309
diff
changeset
|
93 exitstatus = |
|
d079dd7b69bc
Add termsigp argument to execute() and wait_process().
Bruno Haible <bruno@clisp.org>
parents:
9309
diff
changeset
|
94 wait_subprocess (child, progname, true, false, true, false, NULL); |
| 7018 | 95 if (exitstatus != 0) |
| 96 { | |
| 97 free (line); | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 l->line = line; | |
| 102 return false; | |
| 103 } | |
| 104 | |
| 105 char * | |
| 106 javaexec_version (void) | |
| 107 { | |
| 108 const char *class_name = "javaversion"; | |
| 109 const char *pkgdatadir = relocate (PKGDATADIR); | |
| 110 const char *args[1]; | |
| 111 struct locals locals; | |
| 112 | |
| 113 args[0] = NULL; | |
| 114 locals.line = NULL; | |
| 115 execute_java_class (class_name, &pkgdatadir, 1, true, NULL, args, | |
| 116 false, false, execute_and_read_line, &locals); | |
| 117 | |
| 118 return locals.line; | |
| 119 } |