GNUnet 0.21.0
gnunet-uri.c
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2012 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
27#include "platform.h"
28#include "gnunet_util_lib.h"
29
33static long unsigned int exit_code = 0;
34
38static struct GNUNET_OS_Process *p;
39
44
45
52static void
54{
56
57 (void) cls;
62}
63
64
73static void
74run (void *cls,
75 char *const *args,
76 const char *cfgfile,
77 const struct GNUNET_CONFIGURATION_Handle *cfg)
78{
79 const char *uri;
80 const char *slash;
81 char *subsystem;
82 char *program;
83 struct GNUNET_SCHEDULER_Task *rt;
84
85 (void) cls;
86 (void) cfgfile;
87 if (NULL == (uri = args[0]))
88 {
89 fprintf (stderr, _ ("No URI specified on command line\n"));
90 return;
91 }
92 if (0 != strncasecmp ("gnunet://", uri, strlen ("gnunet://")))
93 {
94 fprintf (stderr,
95 _ ("Invalid URI: does not start with `%s'\n"),
96 "gnunet://");
97 return;
98 }
99 uri += strlen ("gnunet://");
100 if (NULL == (slash = strchr (uri, '/')))
101 {
102 fprintf (stderr, _ ("Invalid URI: fails to specify subsystem\n"));
103 return;
104 }
105 subsystem = GNUNET_strndup (uri, slash - uri);
106 if (GNUNET_OK !=
108 {
109 fprintf (stderr, _ ("No handler known for subsystem `%s'\n"), subsystem);
111 return;
112 }
118 NULL);
120 NULL,
121 NULL,
122 NULL,
123 program,
124 program,
125 args[0],
126 NULL);
127 GNUNET_free (program);
128 if (NULL == p)
130}
131
132
137static void
139{
140 static char c;
141 int old_errno = errno; /* back-up errno */
142
144 1 ==
147 &c,
148 sizeof(c)));
149 errno = old_errno; /* restore errno */
150}
151
152
160int
161main (int argc, char *const *argv)
162{
163 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
165 };
167 int ret;
168
169 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
170 return 2;
172 GNUNET_assert (sigpipe != NULL);
173 shc_chld =
175 ret = GNUNET_PROGRAM_run (argc,
176 argv,
177 "gnunet-uri URI",
179 "Perform default-actions for GNUnet URIs"),
180 options,
181 &run,
182 NULL);
184 shc_chld = NULL;
186 sigpipe = NULL;
187 GNUNET_free_nz ((void *) argv);
188 return ((GNUNET_OK == ret) && (0 == exit_code)) ? 0 : 1;
189}
190
191
192/* end of gnunet-uri.c */
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_OPTION_END
Definition: 002.c:13
struct GNUNET_GETOPT_CommandLineOption options[]
Definition: 002.c:5
static struct GNUNET_SIGNAL_Context * shc_chld
#define gettext_noop(String)
Definition: gettext.h:70
static int ret
Final status code.
Definition: gnunet-arm.c:94
static struct GNUNET_CONFIGURATION_Handle * cfg
Our configuration.
Definition: gnunet-arm.c:109
static uint32_t type
Type string converted to DNS type value.
static struct GNUNET_FS_Uri * uri
Value of URI provided on command-line (when not publishing a file but just creating UBlocks to refer ...
static char * subsystem
Set to subsystem that we're going to get stats for (or NULL for all).
static void maint_child_death(void *cls)
Task triggered whenever we receive a SIGCHLD (child process died) or when user presses CTRL-C.
Definition: gnunet-uri.c:53
static struct GNUNET_OS_Process * p
Helper process we started.
Definition: gnunet-uri.c:38
static struct GNUNET_DISK_PipeHandle * sigpipe
Pipe used to communicate shutdown via signal.
Definition: gnunet-uri.c:43
static void sighandler_child_death()
Signal handler called for SIGCHLD.
Definition: gnunet-uri.c:138
static long unsigned int exit_code
Handler exit code.
Definition: gnunet-uri.c:33
static void run(void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
Main function that will be run by the scheduler.
Definition: gnunet-uri.c:74
int main(int argc, char *const *argv)
The main function to handle gnunet://-URIs.
Definition: gnunet-uri.c:161
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_string(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, char **value)
Get a configuration value that should be a string.
const struct GNUNET_DISK_FileHandle * GNUNET_DISK_pipe_handle(const struct GNUNET_DISK_PipeHandle *p, enum GNUNET_DISK_PipeEnd n)
Get the handle to a particular pipe end.
Definition: disk.c:1617
ssize_t GNUNET_DISK_file_write(const struct GNUNET_DISK_FileHandle *h, const void *buffer, size_t n)
Write a buffer to a file.
Definition: disk.c:686
struct GNUNET_DISK_PipeHandle * GNUNET_DISK_pipe(enum GNUNET_DISK_PipeFlags pf)
Creates an interprocess channel.
Definition: disk.c:1444
enum GNUNET_GenericReturnValue GNUNET_DISK_pipe_close(struct GNUNET_DISK_PipeHandle *p)
Closes an interprocess channel.
Definition: disk.c:1587
@ GNUNET_DISK_PF_NONE
No special options, use non-blocking read/write operations.
@ GNUNET_DISK_PIPE_END_WRITE
The writing-end of a pipe.
@ GNUNET_DISK_PIPE_END_READ
The reading-end of a pipe.
@ GNUNET_OK
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
#define GNUNET_strndup(a, length)
Wrapper around GNUNET_xstrndup_.
#define GNUNET_free(ptr)
Wrapper around free.
#define GNUNET_free_nz(ptr)
Wrapper around free.
struct GNUNET_OS_Process * GNUNET_OS_start_process(enum GNUNET_OS_InheritStdioFlags std_inheritance, struct GNUNET_DISK_PipeHandle *pipe_stdin, struct GNUNET_DISK_PipeHandle *pipe_stdout, struct GNUNET_DISK_PipeHandle *pipe_stderr, const char *filename,...)
Start a process.
Definition: os_priority.c:626
GNUNET_OS_ProcessStatusType
Process status types.
void GNUNET_OS_process_destroy(struct GNUNET_OS_Process *proc)
Cleans up process structure contents (OS-dependent) and deallocates it.
Definition: os_priority.c:260
int GNUNET_OS_process_kill(struct GNUNET_OS_Process *proc, int sig)
Sends a signal to the process.
Definition: os_priority.c:210
enum GNUNET_GenericReturnValue GNUNET_OS_process_status(struct GNUNET_OS_Process *proc, enum GNUNET_OS_ProcessStatusType *type, unsigned long *code)
Retrieve the status of a process.
Definition: os_priority.c:859
@ GNUNET_OS_INHERIT_STD_NONE
No standard streams should be inherited.
Definition: gnunet_os_lib.h:77
@ GNUNET_OS_PROCESS_EXITED
The process exited with a return code.
enum GNUNET_GenericReturnValue GNUNET_PROGRAM_run(int argc, char *const *argv, const char *binaryName, const char *binaryHelp, const struct GNUNET_GETOPT_CommandLineOption *options, GNUNET_PROGRAM_Main task, void *task_cls)
Run a standard GNUnet command startup sequence (initialize loggers and configuration,...
Definition: program.c:400
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_read_file(struct GNUNET_TIME_Relative delay, const struct GNUNET_DISK_FileHandle *rfd, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay or when the specified file descriptor is ready f...
Definition: scheduler.c:1656
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:975
struct GNUNET_SIGNAL_Context * GNUNET_SIGNAL_handler_install(int signal, GNUNET_SIGNAL_Handler handler)
Install a signal handler that will be run if the given signal is received.
Definition: signal.c:52
void GNUNET_SIGNAL_handler_uninstall(struct GNUNET_SIGNAL_Context *ctx)
Uninstall a previously installed signal handler.
Definition: signal.c:78
enum GNUNET_GenericReturnValue GNUNET_STRINGS_get_utf8_args(int argc, char *const *argv, int *u8argc, char *const **u8argv)
Returns utf-8 encoded arguments.
Definition: strings.c:1230
#define GNUNET_TIME_UNIT_FOREVER_REL
Constant used to specify "forever".
#define _(String)
GNU gettext support macro.
Definition: platform.h:178
#define GNUNET_SIGCHLD
Definition: platform.h:42
#define GNUNET_TERM_SIG
The termination signal.
Definition: platform.h:234
Handle used to manage a pipe.
Definition: disk.c:68
Definition of a command line option.
Entry in list of pending tasks.
Definition: scheduler.c:136