aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDavid Oberhollenzer <david.oberhollenzer@tele2.at>2018-03-24 22:31:05 +0100
committerDavid Oberhollenzer <david.oberhollenzer@tele2.at>2018-03-24 22:50:28 +0100
commit1b3b98135eefe7cf03a379be1d5ebf13369dcfa5 (patch)
treeb9dee75d538f40557bcbd72b31f7fae30c8012ac
parentbb9ff43ea25dd80d5fb0f26addcef4e7b06c7990 (diff)
Add license headers and comments to source
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
-rw-r--r--cmd/shutdown.c17
-rw-r--r--initd/init.h96
-rw-r--r--initd/main.c17
-rw-r--r--initd/mksock.c17
-rw-r--r--initd/runlst.c17
-rw-r--r--initd/setup_tty.c17
-rw-r--r--initd/shutdown.c17
-rw-r--r--initd/status.c17
-rw-r--r--initd/svclist.c17
-rw-r--r--lib/include/service.h47
-rw-r--r--lib/include/telinit.h20
-rw-r--r--lib/include/util.h22
-rw-r--r--lib/src/del_srv_list.c17
-rw-r--r--lib/src/delsrv.c17
-rw-r--r--lib/src/enum_by_name.c17
-rw-r--r--lib/src/opensock.c17
-rw-r--r--lib/src/rdline.c17
-rw-r--r--lib/src/rdsrv.c17
-rw-r--r--lib/src/splitkv.c17
-rw-r--r--lib/src/srv_tsort.c17
-rw-r--r--lib/src/srvscan.c17
-rw-r--r--lib/src/strexpand.c17
-rw-r--r--servicecmd/disable.c17
-rw-r--r--servicecmd/enable.c17
-rw-r--r--servicecmd/help.c17
-rw-r--r--servicecmd/list.c17
-rw-r--r--servicecmd/servicecmd.c17
-rw-r--r--servicecmd/servicecmd.h50
28 files changed, 614 insertions, 12 deletions
diff --git a/cmd/shutdown.c b/cmd/shutdown.c
index 16e0c8e..0d11cc5 100644
--- a/cmd/shutdown.c
+++ b/cmd/shutdown.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
diff --git a/initd/init.h b/initd/init.h
index 0bfed6c..dee0b00 100644
--- a/initd/init.h
+++ b/initd/init.h
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#ifndef INIT_H
#define INIT_H
@@ -14,22 +31,101 @@ enum {
STATUS_WAIT,
};
+/********** runlst.c **********/
+
+/*
+ Plow through an array of strings and execute each one, i.e. do
+ a fork() and exec().
+
+ In the parent process, wait() until the child is done before
+ continuing through the list.
+
+ If ctty is not NULL, open it and redirect all I/O of the child
+ process to that file.
+
+ If everyhing works, the function returns EXIT_SUCCESS. If one child
+ does not exit with EXIT_SUCCESS, processing of the list is aborted
+ and the function returns the exit status of the failed process.
+*/
int runlst_wait(char **exec, size_t num, const char *ctty);
+/*
+ Does basically the same as runlst_wait, but asynchronously.
+
+ A child process is created that calls runlst_wait exits with the
+ result of runlst_wait. In the parent process, the function returns
+ immediately with the PID of the child process.
+
+ Alternatively, if num is 1, the child process directly exec()s the
+ given command.
+*/
pid_t runlst(char **exec, size_t num, const char *ctty);
+/********** setup_tty.c **********/
+
+/*
+ Initial tty setup for init. Makes /dev/console our controlling tty and
+ reroutes all output there. Closes stdin because we presumably won't
+ need it anymore.
+
+ Returns 0 on success, -1 on failure. The function takes care of
+ printing error messages on failure.
+*/
int setup_tty(void);
+/********** status.c **********/
+
+/*
+ Print a status message. Type is either STATUS_OK, STATUS_FAIL or
+ STATUS_WAIT.
+
+ A new-line is appended to the mssage, UNLESS type is STATUS_WAIT.
+
+ If update is true, print a carriage return first to overwrite the
+ current line (e.g. after a STATUS_WAIT message).
+*/
void print_status(const char *msg, int type, bool update);
+/********** mksock.c **********/
+
+/*
+ Create a UNIX socket that programs can use to pass messages to init.
+
+ Returns the socked fd or -1 on failure. The function takes care of
+ printing error messages on failure.
+
+ The socket has the CLOEXEC flag set.
+*/
int mksock(void);
+/********** shutdown.c **********/
+
+/*
+ Kindly tell all processes to go kill themselves, then send
+ a SIGKILL if they don't and perform system shutdown.
+
+ The argument is passed directly to the reboot() syscall.
+*/
NORETURN void do_shutdown(int type);
+/********** svclist.c **********/
+
+/*
+ Returns true if the list of running services contains
+ single shot processes.
+*/
bool svclist_have_singleshot(void);
+/* Add a service to the list of running services */
void svclist_add(service_t *svc);
+/*
+ Remove a service, identifierd by PID, from the list of
+ running services.
+
+ Returns the service identified by the PID or NULL if there
+ is no such service.
+*/
service_t *svclist_remove(pid_t pid);
#endif /* INIT_H */
diff --git a/initd/main.c b/initd/main.c
index 211188e..be9fc0d 100644
--- a/initd/main.c
+++ b/initd/main.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/socket.h>
diff --git a/initd/mksock.c b/initd/mksock.c
index ab26e51..6a9cab0 100644
--- a/initd/mksock.c
+++ b/initd/mksock.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
diff --git a/initd/runlst.c b/initd/runlst.c
index cf75126..908ec15 100644
--- a/initd/runlst.c
+++ b/initd/runlst.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/wait.h>
#include <signal.h>
#include <unistd.h>
diff --git a/initd/setup_tty.c b/initd/setup_tty.c
index cec663b..807b69d 100644
--- a/initd/setup_tty.c
+++ b/initd/setup_tty.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
diff --git a/initd/shutdown.c b/initd/shutdown.c
index 45af1c2..1ee68c2 100644
--- a/initd/shutdown.c
+++ b/initd/shutdown.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
diff --git a/initd/status.c b/initd/status.c
index 280670b..67b049b 100644
--- a/initd/status.c
+++ b/initd/status.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdio.h>
#include "init.h"
diff --git a/initd/svclist.c b/initd/svclist.c
index 590091e..4ed897f 100644
--- a/initd/svclist.c
+++ b/initd/svclist.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include "init.h"
static service_t *running = NULL; /* currently supervised services */
diff --git a/lib/include/service.h b/lib/include/service.h
index eb92d85..6808bdd 100644
--- a/lib/include/service.h
+++ b/lib/include/service.h
@@ -1,19 +1,45 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#ifndef SERVICE_H
#define SERVICE_H
#include <sys/types.h>
enum {
+ /*
+ Start the service in the background and continue with
+ other services. The service will eventually terminate.
+ */
SVC_ONCE = 0,
- SVC_WAIT,
+ SVC_WAIT, /* run service and wait until it finishes */
+
+ /*
+ Similar to SVC_ONCE, but restart the service when
+ it terminates.
+ */
SVC_RESPAWN,
};
enum {
- TGT_BOOT = 0,
- TGT_SHUTDOWN,
- TGT_REBOOT,
- TGT_CAD,
+ TGT_BOOT = 0, /* run service when the system boots */
+ TGT_SHUTDOWN, /* run service when at system shut down */
+ TGT_REBOOT, /* run service when during system reboot */
+ TGT_CAD, /* run service when CTRL+ALT+DEL is pressed */
TGT_MAX
};
@@ -27,9 +53,9 @@ typedef struct service_t {
size_t num_exec; /* number of command lines */
char *ctty; /* controlling tty or log file */
- char **before;
+ char **before; /* services that must be executed later */
size_t num_before;
- char **after;
+ char **after; /* services that must be executed first */
size_t num_after;
pid_t pid;
@@ -49,6 +75,13 @@ service_t *rdsrv(int dirfd, const char *filename);
void delsrv(service_t *srv);
+/*
+ Rebuild a service list by scanning a directory and parsing all
+ service descriptions.
+
+ Returns 0 on success, -1 on failure. The function takes care of
+ printing error messages on failure.
+*/
int srvscan(const char *directory, service_list_t *list);
void del_srv_list(service_list_t *list);
diff --git a/lib/include/telinit.h b/lib/include/telinit.h
index 72ad871..3a3dd8c 100644
--- a/lib/include/telinit.h
+++ b/lib/include/telinit.h
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#ifndef TELINIT_H
#define TELINIT_H
@@ -11,9 +28,10 @@ enum {
};
typedef struct {
- int type;
+ int type; /* TI_* message type identifier */
} ti_msg_t;
+/* Try to connect to the init socket. */
int opensock(void);
#endif /* TELINIT_H */
diff --git a/lib/include/util.h b/lib/include/util.h
index bed2ba7..ed5dac2 100644
--- a/lib/include/util.h
+++ b/lib/include/util.h
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#ifndef UTIL_H
#define UTIL_H
@@ -52,6 +69,11 @@ int splitkv(char *line, char **key, char **value);
*/
const enum_map_t *enum_by_name(const enum_map_t *map, const char *name);
+/*
+ Create a copy of the input string inp, but replace all occourances
+ of %<number> with argv[number] if the number is within the bounds
+ specified by argc.
+*/
char *strexpand(const char *inp, size_t argc, const char *const *argv);
#endif /* UTIL_H */
diff --git a/lib/src/del_srv_list.c b/lib/src/del_srv_list.c
index 916fcb2..d54c40b 100644
--- a/lib/src/del_srv_list.c
+++ b/lib/src/del_srv_list.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdlib.h>
#include "service.h"
diff --git a/lib/src/delsrv.c b/lib/src/delsrv.c
index b660558..87b65bc 100644
--- a/lib/src/delsrv.c
+++ b/lib/src/delsrv.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdlib.h>
#include "service.h"
diff --git a/lib/src/enum_by_name.c b/lib/src/enum_by_name.c
index 1948eb9..95f306f 100644
--- a/lib/src/enum_by_name.c
+++ b/lib/src/enum_by_name.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <string.h>
#include "util.h"
diff --git a/lib/src/opensock.c b/lib/src/opensock.c
index 06101ef..0c2bf56 100644
--- a/lib/src/opensock.c
+++ b/lib/src/opensock.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
diff --git a/lib/src/rdline.c b/lib/src/rdline.c
index 591c713..1b91008 100644
--- a/lib/src/rdline.c
+++ b/lib/src/rdline.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
diff --git a/lib/src/rdsrv.c b/lib/src/rdsrv.c
index 52eb19c..ec60ce1 100644
--- a/lib/src/rdsrv.c
+++ b/lib/src/rdsrv.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
diff --git a/lib/src/splitkv.c b/lib/src/splitkv.c
index 6c6fe94..b1ef8d3 100644
--- a/lib/src/splitkv.c
+++ b/lib/src/splitkv.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <ctype.h>
#include "util.h"
diff --git a/lib/src/srv_tsort.c b/lib/src/srv_tsort.c
index e2549b1..d375c4f 100644
--- a/lib/src/srv_tsort.c
+++ b/lib/src/srv_tsort.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
diff --git a/lib/src/srvscan.c b/lib/src/srvscan.c
index 71ad4f9..69d0b91 100644
--- a/lib/src/srvscan.c
+++ b/lib/src/srvscan.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/stat.h>
#include <stddef.h>
diff --git a/lib/src/strexpand.c b/lib/src/strexpand.c
index 7e552eb..58b69a0 100644
--- a/lib/src/strexpand.c
+++ b/lib/src/strexpand.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
diff --git a/servicecmd/disable.c b/servicecmd/disable.c
index 90d8b80..1901381 100644
--- a/servicecmd/disable.c
+++ b/servicecmd/disable.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
diff --git a/servicecmd/enable.c b/servicecmd/enable.c
index 8e6200c..73ea01e 100644
--- a/servicecmd/enable.c
+++ b/servicecmd/enable.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
diff --git a/servicecmd/help.c b/servicecmd/help.c
index 6cd816e..4fa9951 100644
--- a/servicecmd/help.c
+++ b/servicecmd/help.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include "servicecmd.h"
extern char *__progname;
diff --git a/servicecmd/list.c b/servicecmd/list.c
index 2286197..aad70d6 100644
--- a/servicecmd/list.c
+++ b/servicecmd/list.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include "servicecmd.h"
#include "service.h"
#include "config.h"
diff --git a/servicecmd/servicecmd.c b/servicecmd/servicecmd.c
index 278afaf..ff37740 100644
--- a/servicecmd/servicecmd.c
+++ b/servicecmd/servicecmd.c
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#include <stdlib.h>
#include <stdio.h>
diff --git a/servicecmd/servicecmd.h b/servicecmd/servicecmd.h
index ce5e58f..27204d0 100644
--- a/servicecmd/servicecmd.h
+++ b/servicecmd/servicecmd.h
@@ -1,3 +1,20 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#ifndef SERVICECMD_H
#define SERVICECMD_H
@@ -8,21 +25,46 @@
#include "util.h"
+/*
+ Describes a command that can be launched by passing its name as
+ second command line argument to the main() function (i.e. immediately
+ after the actual program name).
+
+ Short and long descriptions can be provided to print out help text.
+
+ The main() function calls into a callback in this structure to execute
+ the command.
+*/
typedef struct command_t {
struct command_t *next;
- const char *cmd;
- const char *usage;
- const char *s_desc;
- const char *l_desc;
+ const char *cmd; /* command name */
+ const char *usage; /* list of possible arguments */
+ const char *s_desc; /* short description used by help */
+ const char *l_desc; /* long description used by help */
+ /*
+ Semantics are the same as for main(). Called from main()
+ function with first argument (i.e. top level program name)
+ removed.
+ */
int (*run_cmd)(int argc, char **argv);
} command_t;
+/* Global list of available commands */
extern command_t *commands;
+/*
+ Implemented in servicecmd.c. Prints program usage message and
+ terminates with the given exit status.
+*/
void usage(int status) NORETURN;
+/*
+ To implement a new command, add a global, static instance of a
+ command_t (or derived) structure to a C file and pass it to this
+ macro to have it automatically registered on program startup.
+*/
#define REGISTER_COMMAND(cmd) \
static void __attribute__((constructor)) register_##cmd(void) \
{ \