From 66c2537197a79b1c6fd44112015b96f2353ccd42 Mon Sep 17 00:00:00 2001 From: Christian Pointner Date: Mon, 30 May 2011 22:52:37 +0000 Subject: initial release --- AUTHORS | 1 + ChangeLog | 3 + LICENSE | 698 ++++++++++++++++++++++++++++++++++++++++++++++++ README | 53 ++++ doc/Makefile | 45 ++++ doc/gstdvbbackend.8 | 138 ++++++++++ doc/gstdvbbackend.8.txt | 109 ++++++++ src/Makefile | 124 +++++++++ src/configure | 172 ++++++++++++ src/daemon.h | 163 +++++++++++ src/datatypes.h | 37 +++ src/file_list.c | 215 +++++++++++++++ src/file_list.h | 62 +++++ src/gstdvbbackend.c | 250 +++++++++++++++++ src/log.c | 262 ++++++++++++++++++ src/log.h | 83 ++++++ src/log_targets.h | 354 ++++++++++++++++++++++++ src/options.c | 292 ++++++++++++++++++++ src/options.h | 62 +++++ src/sig_handler.c | 109 ++++++++ src/sig_handler.h | 35 +++ src/slist.c | 128 +++++++++ src/slist.h | 49 ++++ src/string_list.c | 67 +++++ src/string_list.h | 39 +++ src/sysexec.c | 220 +++++++++++++++ src/sysexec.h | 47 ++++ src/writer.c | 241 +++++++++++++++++ src/writer.h | 59 ++++ version | 1 + 30 files changed, 4118 insertions(+) create mode 100644 AUTHORS create mode 100644 ChangeLog create mode 100644 LICENSE create mode 100644 README create mode 100644 doc/Makefile create mode 100644 doc/gstdvbbackend.8 create mode 100644 doc/gstdvbbackend.8.txt create mode 100644 src/Makefile create mode 100755 src/configure create mode 100644 src/daemon.h create mode 100644 src/datatypes.h create mode 100644 src/file_list.c create mode 100644 src/file_list.h create mode 100644 src/gstdvbbackend.c create mode 100644 src/log.c create mode 100644 src/log.h create mode 100644 src/log_targets.h create mode 100644 src/options.c create mode 100644 src/options.h create mode 100644 src/sig_handler.c create mode 100644 src/sig_handler.h create mode 100644 src/slist.c create mode 100644 src/slist.h create mode 100644 src/string_list.c create mode 100644 src/string_list.h create mode 100644 src/sysexec.c create mode 100644 src/sysexec.h create mode 100644 src/writer.c create mode 100644 src/writer.h create mode 100644 version diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..6762c7c --- /dev/null +++ b/AUTHORS @@ -0,0 +1 @@ +Christian Pointner diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..2c78426 --- /dev/null +++ b/ChangeLog @@ -0,0 +1,3 @@ +2011.??.?? -- Version 0.? + +* initial release diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..49d6fa9 --- /dev/null +++ b/LICENSE @@ -0,0 +1,698 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + 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 . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README b/README new file mode 100644 index 0000000..98580ee --- /dev/null +++ b/README @@ -0,0 +1,53 @@ +Introduction +============ + +gstdvbbackend is small program based on gstreamer. It converts +a raw audio stream into flac or ogg and writes files for every +hour. + +Dependencies +============ + +Linux +----- + +core: + build-essential + libgstreamer0.10-dev + libgstreamer-plugins-base0.10-dev + pkg-config + +if you want to rebuild the manpage: + asciidoc + + +Installation +============ + +Getting the source via subversion: +---------------------------------- + +svn co https://svn.helsinki.at/gstdvbbackend/trunk gstdvbbackend +cd gstdvbbackend + + +Building from source +-------------------- + +# cd src +# ./configure +# make + + +Installing +---------- + +# sudo make install + +This will install gstdvbbackend under the --prefix defined with configure. + + +Uninstalling +------------ + +# sudo make remove diff --git a/doc/Makefile b/doc/Makefile new file mode 100644 index 0000000..577c049 --- /dev/null +++ b/doc/Makefile @@ -0,0 +1,45 @@ +## +## gstdvbbackend +## +## gstdvbbackend is a small programm which captures a given set of dvb +## channels from one dvb device and provides the streams via minimal http. +## +## +## Copyright (C) 2011 Christian Pointner +## +## This file is part of gstdvbbackend. +## +## gstdvbbackend 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 +## any later version. +## +## gstdvbbackend 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 gstdvbbackend. If not, see . +## + +VERSION=$(shell cat ../version) + +.PHONY: clean + +all: manpage + +gstdvbbackend.8: gstdvbbackend.8.txt + a2x -f manpage $< + @ sed -i -e 's/\[FIXME: source\]/gstdvbbackend ${VERSION}/' $@ + @ sed -i -e 's/\[FIXME: manual\]/gstdvbbackend user manual/' $@ + @ sed -i -e 's/^gstdvbbackend$$/\\fBgstdvbbackend\\fR/' $@ + @ sed -i -e 's/^ \[ \([^ ]*\)/ [ \\fB\1\\fR/' $@ + +manpage: gstdvbbackend.8 + +clean: + rm -f gstdvbbackend.8.xml + +realclean: clean + rm -f gstdvbbackend.8 diff --git a/doc/gstdvbbackend.8 b/doc/gstdvbbackend.8 new file mode 100644 index 0000000..7eac065 --- /dev/null +++ b/doc/gstdvbbackend.8 @@ -0,0 +1,138 @@ +'\" t +.\" Title: gstdvbbackend +.\" Author: [see the "AUTHORS" section] +.\" Generator: DocBook XSL Stylesheets v1.75.2 +.\" Date: 05/30/2011 +.\" Manual: \ \& +.\" Source: \ \& +.\" Language: English +.\" +.TH "GSTDVBBACKEND" "8" "05/30/2011" "\ \&" "\ \&" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +gstdvbbackend \- simple DVB to HTTP Streamer +.SH "SYNOPSIS" +.sp +.nf +\fBgstdvbbackend\fR + [ \fB\-h|\-\-help\fR ] + [ \fB\-D|\-\-nodaemonize\fR ] + [ \fB\-u|\-\-username\fR ] + [ \fB\-g|\-\-groupname\fR ] + [ \fB\-C|\-\-chroot\fR ] + [ \fB\-P|\-\-write\-pid\fR ] + [ \fB\-L|\-\-log\fR :[,[,[\&.\&.]]] ] + [ \fB\-U|\-\-debug\fR ] +.fi +.SH "DESCRIPTION" +.sp +\fBgstdvbbackend\fR gstdvbbackend is small program based on gstreamer\&. It captures a given set of dvb channels from one dvb device and provides the streams via minimal http\&. +.SH "OPTIONS" +.sp +The following options can be passed to the \fBgstdvbbackend\fR daemon: +.PP +\fB\-D, \-\-nodaemonize\fR +.RS 4 +This option instructs +\fBgstdvbbackend\fR +to run in foreground instead of becoming a daemon which is the default\&. +.RE +.PP +\fB\-u, \-\-username \fR +.RS 4 +run as this user\&. If no group is specified (\fB\-g\fR) the default group of the user is used\&. The default is to not drop privileges\&. +.RE +.PP +\fB\-g, \-\-groupname \fR +.RS 4 +run as this group\&. If no username is specified (\fB\-u\fR) this gets ignored\&. The default is to not drop privileges\&. +.RE +.PP +\fB\-C, \-\-chroot \fR +.RS 4 +Instruct +\fBgstdvbbackend\fR +to run in a chroot jail\&. The default is to not run in chroot\&. +.RE +.PP +\fB\-P, \-\-write\-pid \fR +.RS 4 +Instruct +\fBgstdvbbackend\fR +to write it\(cqs pid to this file\&. The default is to not create a pid file\&. +.RE +.PP +\fB\-L, \-\-log :[,[,[\&.\&.]]]\fR +.RS 4 +add log target to logging system\&. This can be invoked several times in order to log to different targets at the same time\&. Every target has its own log level which is a number between 0 and 5\&. Where 0 means disabling log and 5 means debug messages are enabled\&. + +The file target can be used more than once with different levels\&. If no target is provided at the command line a single target with the config +\fBsyslog:3,gstdvbbackend,daemon\fR +is added\&. + +The following targets are supported: +.PP +\fBsyslog\fR +.RS 4 +log to syslog daemon, parameters [,[,]] +.RE +.PP +\fBfile\fR +.RS 4 +log to file, parameters [,] +.RE +.PP +\fBstdout\fR +.RS 4 +log to standard output, parameters +.RE +.PP +\fBstderr\fR +.RS 4 +log to standard error, parameters +.RE +.RE +.PP +\fB\-U, \-\-debug\fR +.RS 4 +This option instructs +\fBgstdvbbackend\fR +to run in debug mode\&. It implicits +\fB\-D\fR +(don\(cqt daemonize) and adds a log target with the configuration +\fBstdout:5\fR +(logging with maximum level)\&. In future releases there might be additional output when this option is supplied\&. +.RE +.SH "BUGS" +.sp +Most likely there are some bugs in \fBgstdvbbackend\fR\&. If you find a bug, please let the developers know at equinox@helsinki\&.at\&. Of course, patches are preferred\&. +.SH "SEE ALSO" +.sp +\fBgst\-launch\fR(1) +.SH "AUTHORS" +.sp +Christian Pointner +.SH "RESOURCES" +.sp +Project Page: http://www\&.spreadspace\&.org/gstdvbbackend +.SH "COPYING" +.sp +Copyright (C) 2011 Christian Pointner\&. 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 any later version\&. diff --git a/doc/gstdvbbackend.8.txt b/doc/gstdvbbackend.8.txt new file mode 100644 index 0000000..30a8dcc --- /dev/null +++ b/doc/gstdvbbackend.8.txt @@ -0,0 +1,109 @@ +gstdvbbackend(8) +================ + +NAME +---- + +gstdvbbackend - simple DVB to HTTP Streamer + + +SYNOPSIS +-------- + +.... +gstdvbbackend + [ -h|--help ] + [ -D|--nodaemonize ] + [ -u|--username ] + [ -g|--groupname ] + [ -C|--chroot ] + [ -P|--write-pid ] + [ -L|--log :[,[,[..]]] ] + [ -U|--debug ] +.... + + +DESCRIPTION +----------- + +*gstdvbbackend* gstdvbbackend is small program based on gstreamer. It +captures a given set of dvb channels from one dvb device and provides +the streams via minimal http. + +OPTIONS +------- + +The following options can be passed to the *gstdvbbackend* daemon: + +*-D, --nodaemonize*:: + This option instructs *gstdvbbackend* to run in foreground + instead of becoming a daemon which is the default. + +*-u, --username *:: + run as this user. If no group is specified (*-g*) the default group of + the user is used. The default is to not drop privileges. + +*-g, --groupname *:: + run as this group. If no username is specified (*-u*) this gets ignored. + The default is to not drop privileges. + +*-C, --chroot *:: + Instruct *gstdvbbackend* to run in a chroot jail. The default is + to not run in chroot. + +*-P, --write-pid *:: + Instruct *gstdvbbackend* to write it's pid to this file. The default is + to not create a pid file. + +*-L, --log :[,[,[..]]]*:: + add log target to logging system. This can be invoked several times + in order to log to different targets at the same time. Every target + has its own log level which is a number between 0 and 5. Where 0 means + disabling log and 5 means debug messages are enabled. + + The file target can be used more than once with different levels. + If no target is provided at the command line a single target with the + config *syslog:3,gstdvbbackend,daemon* is added. + + The following targets are supported: + + *syslog*;; log to syslog daemon, parameters [,[,]] + *file*;; log to file, parameters [,] + *stdout*;; log to standard output, parameters + *stderr*;; log to standard error, parameters + +*-U, --debug*:: + This option instructs *gstdvbbackend* to run in debug mode. It implicits *-D* + (don't daemonize) and adds a log target with the configuration + *stdout:5* (logging with maximum level). In future releases there might + be additional output when this option is supplied. + + +BUGS +---- +Most likely there are some bugs in *gstdvbbackend*. If you find a bug, please let +the developers know at equinox@helsinki.at. Of course, patches are preferred. + + +SEE ALSO +-------- + +*gst-launch*(1) + +AUTHORS +------- + +Christian Pointner + + +RESOURCES +--------- + +Project Page: http://www.spreadspace.org/gstdvbbackend + + +COPYING +------- + +Copyright \(C) 2011 Christian Pointner. 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 any later version. diff --git a/src/Makefile b/src/Makefile new file mode 100644 index 0000000..386251a --- /dev/null +++ b/src/Makefile @@ -0,0 +1,124 @@ +## +## gstdvbbackend +## +## gstdvbbackend is a small programm which captures a given set of dvb +## channels from one dvb device and provides the streams via minimal http. +## +## +## Copyright (C) 2011 Christian Pointner +## +## This file is part of gstdvbbackend. +## +## gstdvbbackend 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 +## any later version. +## +## gstdvbbackend 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 gstdvbbackend. If not, see . +## + +ifneq ($(MAKECMDGOALS),distclean) +include include.mk +endif + +EXECUTABLE := gstdvbbackend + +C_OBJS := log.o \ + sig_handler.o \ + options.o \ + slist.o \ + string_list.o \ + writer.o \ + file_list.o \ + sysexec.o \ + gstdvbbackend.o + +C_SRCS := $(C_OBJS:%.o=%.c) + +.PHONY: clean cleanall distclean manpage install install-bin install-man uninstall remove + +all: $(EXECUTABLE) + +cfg_parser.c: cfg_parser.rl + $(RAGEL) -C -G2 -o $@ $< + +cfg_parser.dot: cfg_parser.rl + $(RAGEL) -V -p -o $@ $< + +cfg_parser.png: cfg_parser.dot + @dot -Tpng $< > $@ + +%.d: %.c + @set -e; rm -f $@; \ + $(CC) -MM $(CFLAGS) $< > $@.$$$$; \ + sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \ + rm -f $@.$$$$; echo '(re)building $@' + +ifneq ($(MAKECMDGOALS),distclean) +-include $(C_SRCS:%.c=%.d) +endif + +$(EXECUTABLE): $(C_OBJS) + $(CC) $(C_OBJS) -o $@ $(LDFLAGS) + +%.o: %.c + $(CC) $(CFLAGS) -c $< + +strip: $(EXECUTABLE) + $(STRIP) -s $(EXECUTABLE) + + +distclean: cleanall + find . -name *.o -exec rm -f {} \; + find . -name "*.\~*" -exec rm -rf {} \; + rm -f include.mk + rm -f config.h + +clean: + rm -f *.o + rm -f *.d + rm -f *.d.* + rm -f cfg_parser.c + rm -f cfg_parser.png cfg_parser.dot + rm -f $(EXECUTABLE) + +cleanall: clean + $(MAKE) --directory="../doc/" clean + +manpage: + $(MAKE) --directory="../doc/" manpage + + +INSTALL_TARGETS := install-bin +REMOVE_TARGETS := remove-bin + +ifdef MANDIR +INSTALL_TARGETS += install-man +REMOVE_TARGETS += remove-man +endif + +install: all $(INSTALL_TARGETS) + +install-bin: $(EXECUTABLE) + $(INSTALL) -d $(DESTDIR)$(BINDIR) + $(INSTALL) -m 755 $(EXECUTABLE) $(DESTDIR)$(BINDIR) + +install-man: manpage + $(INSTALL) -d $(DESTDIR)$(MANDIR)/man8/ + $(INSTALL) -m 644 ../doc/$(EXECUTABLE).8 $(DESTDIR)$(MANDIR)/man8/$(EXECUTABLE).8 + +uninstall: remove + +remove: $(REMOVE_TARGETS) + +remove-bin: + rm -f $(DESTDIR)$(BINDIR)/$(EXECUTABLE) + +remove-man: + rm -f $(DESTDIR)$(MANDIR)/man8/$(EXECUTABLE).8 diff --git a/src/configure b/src/configure new file mode 100755 index 0000000..183c8d7 --- /dev/null +++ b/src/configure @@ -0,0 +1,172 @@ +#!/bin/sh +# +# gstdvbbackend +# +# gstdvbbackend is a small programm which captures a given set of dvb +# channels from one dvb device and provides the streams via minimal http. +# +# +# Copyright (C) 2011 Christian Pointner +# +# This file is part of gstdvbbackend. +# +# gstdvbbackend 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 +# any later version. +# +# gstdvbbackend 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 gstdvbbackend. If not, see . +# + +set -e + +TARGET=`uname -s` +EBUILD_COMPAT=0 + +CFLAGS='-g -O2' +LDFLAGS='-g -Wall -O2' + +PREFIX='/usr/local' +BINDIR='' +MANDIR='' +INSTALLMANPAGE=1 + +print_usage() { + echo "configure --help print this" + echo " --target= build target i.e. Linux (default: autodetect)" + echo " --prefix= the installation prefix (default: /usr/local)" + echo " --bindir= the path to the bin directory (default: $PREFIX/bin)" + echo " --mandir= the path to the system man pages (default: $PREFIX/share/man)" + echo " --no-manpage dont't install manpage" +} + +for arg +do + case $arg in + --target=*) + TARGET=${arg#--target=} + ;; + --prefix=*) + PREFIX=${arg#--prefix=} + ;; + --bindir=*) + BINDIR=${arg#--bindir=} + ;; + --mandir=*) + MANDIR=${arg#--mandir=} + ;; + --no-manpage) + INSTALLMANPAGE=0 + ;; + --ebuild-compat) + EBUILD_COMPAT=1 + ;; + --help) + print_usage + exit 0 + ;; + *) + ERRORS="$ERRORS $arg" + ;; + esac +done + +if [ -n "$ERRORS" ] && [ $EBUILD_COMPAT -ne 1 ]; then + for error in $ERRORS; do + echo "Unknown argument: $error" + done + + print_usage + exit 1 +fi + +CFLAGS="$CFLAGS $(pkg-config --cflags gstreamer-0.10)" +LDFLAGS="$LDFLAGS $(pkg-config --libs gstreamer-0.10)" + +rm -f include.mk +rm -f config.h +case $TARGET in + Linux) + ;; + OpenBSD|FreeBSD|NetBSD|GNU/kFreeBSD) + CFLAGS=$CFLAGS' -I/usr/local/include' + LDFLAGS=$LDFLAGS' -L/usr/local/lib' + ;; + *) + echo "platform not supported" + exit 1; + ;; +esac + +if [ -z "$BINDIR" ]; then + BINDIR=$PREFIX/bin +fi + +if [ -z "$MANDIR" ]; then + MANDIR=$PREFIX/share/man +fi + +cat > include.mk <> include.mk + echo "installing manpage" +else + echo "not installing manpage" +fi + +VERSION=`cat ../version` +if which svn >/dev/null; then + SVN_REV=`svn info 2> /dev/null | grep "^Revision: " | awk '{print($2)}'` + if [ -n "$SVN_REV" ]; then + VERSION="$VERSION (svn$SVN_REV)" + fi +fi + +HOSTNAME=`hostname` +DATE=`date +"%d.%m.%Y %H:%M:%S %Z"` + +cat > config.h < + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#ifndef GSTDVBBACKEND_daemon_h_INCLUDED +#define GSTDVBBACKEND_daemon_h_INCLUDED + +#include +#include +#include +#include +#include +#include +#include + +struct priv_info_struct { + struct passwd* pw_; + struct group* gr_; +}; +typedef struct priv_info_struct priv_info_t; + +int priv_init(priv_info_t* priv, const char* username, const char* groupname) +{ + if(!priv) + return -1; + + priv->pw_ = NULL; + priv->gr_ = NULL; + + priv->pw_ = getpwnam(username); + if(!priv->pw_) { + log_printf(ERROR, "unkown user %s", username); + return -1; + } + + if(groupname) + priv->gr_ = getgrnam(groupname); + else + priv->gr_ = getgrgid(priv->pw_->pw_gid); + + if(!priv->gr_) { + log_printf(ERROR, "unkown group %s", groupname); + return -1; + } + + return 0; +} + +int priv_drop(priv_info_t* priv) +{ + if(!priv || !priv->pw_ || !priv->gr_) { + log_printf(ERROR, "privileges not initialized properly"); + return -1; + } + + if(setgid(priv->gr_->gr_gid)) { + log_printf(ERROR, "setgid('%s') failed: %s", priv->gr_->gr_name, strerror(errno)); + return -1; + } + + gid_t gr_list[1]; + gr_list[0] = priv->gr_->gr_gid; + if(setgroups (1, gr_list)) { + log_printf(ERROR, "setgroups(['%s']) failed: %s", priv->gr_->gr_name, strerror(errno)); + return -1; + } + + if(setuid(priv->pw_->pw_uid)) { + log_printf(ERROR, "setuid('%s') failed: %s", priv->pw_->pw_name, strerror(errno)); + return -1; + } + + log_printf(NOTICE, "dropped privileges to %s:%s", priv->pw_->pw_name, priv->gr_->gr_name); + return 0; +} + + +int do_chroot(const char* chrootdir) +{ + if(getuid() != 0) { + log_printf(ERROR, "this program has to be run as root in order to run in a chroot"); + return -1; + } + + if(chroot(chrootdir)) { + log_printf(ERROR, "can't chroot to %s: %s", chrootdir, strerror(errno)); + return -1; + } + log_printf(NOTICE, "we are in chroot jail (%s) now", chrootdir); + if(chdir("/")) { + log_printf(ERROR, "can't change to /: %s", strerror(errno)); + return -1; + } +} + +void daemonize() +{ + pid_t pid; + + pid = fork(); + if(pid < 0) { + log_printf(ERROR, "daemonizing failed at fork(): %s, exitting", strerror(errno)); + exit(-1); + } + if(pid) exit(0); + + umask(0); + + if(setsid() < 0) { + log_printf(ERROR, "daemonizing failed at setsid(): %s, exitting", strerror(errno)); + exit(-1); + } + + pid = fork(); + if(pid < 0) { + log_printf(ERROR, "daemonizing failed at fork(): %s, exitting", strerror(errno)); + exit(-1); + } + if(pid) exit(0); + + if ((chdir("/")) < 0) { + log_printf(ERROR, "daemonizing failed at chdir(): %s, exitting", strerror(errno)); + exit(-1); + } + + int fd; + for (fd=0;fd<=2;fd++) // close all file descriptors + close(fd); + fd = open("/dev/null",O_RDWR); // stdin + if(fd == -1) + log_printf(WARNING, "can't open stdin (chroot and no link to /dev/null?)"); + else { + if(dup(fd) == -1) // stdout + log_printf(WARNING, "can't open stdout"); + if(dup(fd) == -1) // stderr + log_printf(WARNING, "can't open stderr"); + } + umask(027); +} + +#endif + diff --git a/src/datatypes.h b/src/datatypes.h new file mode 100644 index 0000000..d08af52 --- /dev/null +++ b/src/datatypes.h @@ -0,0 +1,37 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#ifndef GSTDVBBACKEND_datatypes_h_INCLUDED +#define GSTDVBBACKEND_datatypes_h_INCLUDED + +#include + +struct buffer_struct { + uint32_t length_; + uint8_t* buf_; +}; +typedef struct buffer_struct buffer_t; + +#endif diff --git a/src/file_list.c b/src/file_list.c new file mode 100644 index 0000000..60f5181 --- /dev/null +++ b/src/file_list.c @@ -0,0 +1,215 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +#include "datatypes.h" +#include "file_list.h" +#include "slist.h" +#include "log.h" + +static void delete_file(void* element) +{ + file_t* deletee = (file_t*)element; + log_printf(INFO, "removing/closing file '%s' -> %d", deletee->path_, deletee->fd_); + if(deletee->path_) free(deletee->path_); + if(deletee->fd_ >= 0) close(deletee->fd_); + if(deletee->pp_child_) free_child(deletee->pp_child_); +} + +int file_list_init(file_list_t* list) +{ + list->mutex_ = g_mutex_new(); + if(!list->mutex_) + return -2; + + return slist_init(&(list->list_), &delete_file); +} + +void file_list_clear(file_list_t* list) +{ + g_mutex_lock(list->mutex_); + slist_clear(&(list->list_)); + g_mutex_unlock(list->mutex_); +} + +file_t* file_list_add(file_list_t* list, struct tm* time, const char* type, const char* format, const char* dir, mode_t mode) +{ + if(!list || !(list->mutex_)) + return NULL; + + file_t* tmp = malloc(sizeof(file_t)); + if(!tmp) + return NULL; + + log_printf(INFO, "%s time: %02d:%02d:%02d on %d.%d.%d%s", type, time->tm_hour, time->tm_min, time->tm_sec, time->tm_mday, time->tm_mon+1, time->tm_year+1900, time->tm_isdst > 0 ? " (DST)": ""); + + char name[256]; + strftime(name, sizeof(name), format, time); + asprintf(&(tmp->path_), "%s/%s", dir, name); + if(!tmp->path_) { + free(tmp); + return NULL; + } + + log_printf(INFO, "%s filename is: %s(.?)", type, tmp->path_); + tmp->fd_ = FILE_CLOSED; + tmp->mode_ = mode; + tmp->pp_child_ = NULL; + + g_mutex_lock(list->mutex_); + if(slist_add(&(list->list_), tmp) == NULL) { + g_mutex_unlock(list->mutex_); + free(tmp->path_); + free(tmp); + return NULL; + } + g_mutex_unlock(list->mutex_); + + return tmp; +} + +int file_list_remove(file_list_t* list, int fd) +{ + if(!list || !(list->mutex_)) + return -1; + + g_mutex_lock(list->mutex_); + slist_element_t* tmp = list->list_.first_; + while(tmp) { + if(((file_t*)tmp->data_)->fd_ == fd) { + slist_remove(&(list->list_), tmp->data_); + break; + } + tmp = tmp->next_; + } + g_mutex_unlock(list->mutex_); + + return 0; +} + +int file_list_call_post_process(file_list_t* list, int fd, const char* script) +{ + if(!list || !(list->mutex_)) + return -1; + + g_mutex_lock(list->mutex_); + slist_element_t* tmp = list->list_.first_; + while(tmp) { + if(((file_t*)tmp->data_)->fd_ == fd) { + log_printf(INFO, "calling post processing for '%s'", ((file_t*)tmp->data_)->path_); + close(((file_t*)tmp->data_)->fd_); + ((file_t*)tmp->data_)->fd_ = FILE_POST_PROCESS; + + char* const argv[] = { script, ((file_t*)tmp->data_)->path_, NULL }; + char* const evp[] = { NULL }; + ((file_t*)tmp->data_)->pp_child_ = rh_exec(script, argv, evp); + if(!((file_t*)tmp->data_)->pp_child_) + slist_remove(&(list->list_), tmp->data_); + + break; + } + tmp = tmp->next_; + } + g_mutex_unlock(list->mutex_); + + return 0; +} + +int file_list_waitpid(file_list_t* list) +{ + if(!list || !(list->mutex_)) + return -1; + + g_mutex_lock(list->mutex_); + slist_element_t* tmp = list->list_.first_; + while(tmp) { + if(((file_t*)tmp->data_)->fd_ == FILE_POST_PROCESS) { + int ret = rh_waitpid(((file_t*)tmp->data_)->pp_child_, NULL); + file_t* deletee = tmp->data_; + tmp = tmp->next_; + if(ret) + slist_remove(&(list->list_), deletee); + } + else + tmp = tmp->next_; + } + g_mutex_unlock(list->mutex_); + + return 0; +} + +int open_file(file_t* file) +{ + if(!file || file->fd_ != FILE_CLOSED) // file already open! + return -1; + + char* orig_path = file->path_; + int cnt = 0; + do { + file->fd_ = open(file->path_, O_WRONLY | O_CREAT | O_EXCL, file->mode_); + if(file->fd_ < 0) { + if(errno != EEXIST) { + // TODO: thread safe strerror + log_printf(ERROR, "can't open file '%s': %s", file->path_, strerror(errno)); + if(orig_path != file->path_) + free(orig_path); + file->fd_ = FILE_CLOSED; + return -1; + } + cnt++; + char* tmp; + asprintf(&tmp, "%s.%d", orig_path, cnt); + if(!tmp) { + if(orig_path != file->path_) + free(orig_path); + return -2; + } + + if(file->path_ != orig_path) + free(file->path_); + file->path_ = tmp; + } + fchmod(file->fd_, file->mode_); + } + while(file->fd_ < 0); + + if(orig_path != file->path_) + free(orig_path); + + log_printf(INFO, "opened file '%s' -> %d", file->path_, file->fd_); + + return 0; +} diff --git a/src/file_list.h b/src/file_list.h new file mode 100644 index 0000000..a2cf8a0 --- /dev/null +++ b/src/file_list.h @@ -0,0 +1,62 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#ifndef GSTDVBBACKEND_file_list_h_INCLUDED +#define GSTDVBBACKEND_file_list_h_INCLUDED + +#include +#include + +#include + +#include "slist.h" +#include "sysexec.h" + +#define FILE_CLOSED -1 +#define FILE_POST_PROCESS -2 + +struct file_struct { + int fd_; + char* path_; + mode_t mode_; + child_t* pp_child_; +}; +typedef struct file_struct file_t; + +struct file_list_struct { + slist_t list_; + GMutex* mutex_; +}; +typedef struct file_list_struct file_list_t; + +int file_list_init(file_list_t* list); +void file_list_clear(file_list_t* list); +file_t* file_list_add(file_list_t* list, struct tm* time, const char* type, const char* format, const char* dir, mode_t mode); +int file_list_remove(file_list_t* list, int fd); +int file_list_call_post_process(file_list_t* list, int fd, const char* script); +int file_list_waitpid(file_list_t* list); +int open_file(file_t* file); + +#endif diff --git a/src/gstdvbbackend.c b/src/gstdvbbackend.c new file mode 100644 index 0000000..5777ed0 --- /dev/null +++ b/src/gstdvbbackend.c @@ -0,0 +1,250 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#include +#include +#include +#include +#include + +#include + +#include "datatypes.h" +#include "options.h" +#include "string_list.h" +#include "log.h" +#include "daemon.h" +#include "writer.h" + +static gboolean bus_call(GstBus *bus, GstMessage *msg, gpointer data) +{ + GMainLoop *loop = (GMainLoop *)data; + + switch (GST_MESSAGE_TYPE(msg)) { + case GST_MESSAGE_EOS: { + log_printf(NOTICE, "End of stream"); + g_main_loop_quit(loop); + break; + } + case GST_MESSAGE_INFO: { + GError *info; + gst_message_parse_info(msg, &info, NULL); + log_printf(INFO, "%s", info->message); + g_error_free(info); + break; + } + case GST_MESSAGE_WARNING: { + GError *warning; + gst_message_parse_warning(msg, &warning, NULL); + log_printf(WARNING, "%s", warning->message); + g_error_free(warning); + break; + } + case GST_MESSAGE_ERROR: { + GError *error; + gst_message_parse_error(msg, &error, NULL); + log_printf(ERROR, "%s", error->message); + g_error_free(error); + g_main_loop_quit(loop); + break; + } + default: + break; + } + return TRUE; +} + +int main_loop(options_t* opt) +{ + log_printf(INFO, "entering main loop"); + + GMainLoop *loop; + GstElement *pipeline, *source; + GstBus *bus; + writer_t writer; + + loop = g_main_loop_new(NULL, FALSE); + pipeline = gst_pipeline_new("gstdvbbackend"); + if(!pipeline || !loop) { + log_printf(ERROR, "the pipeline/loop object could not be created. Exiting."); + return -1; + } + + int ret = writer_init(&writer, loop, opt->name_format_, opt->mode_, opt->output_dir_, opt->interval_, opt->offset_, opt->post_process_); + if(ret) { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(loop)); + return ret; + } + + GError *error = NULL; + source = gst_parse_bin_from_description(opt->src_bin_desc_, TRUE, &error); + if(!source || error) { + log_printf(ERROR, "Source Bin Description Parser Error: %s", error ? error->message : "unknown"); + g_error_free(error); + gst_object_unref(GST_OBJECT(writer.sink_)); + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(loop)); + return -1; + } + + gst_bin_add_many(GST_BIN(pipeline), source, writer.sink_, NULL); + gst_element_link_many(source, writer.sink_, NULL); + bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline)); + gst_bus_add_watch(bus, bus_call, loop); + gst_object_unref(bus); + + log_printf(INFO, "Set State: Paused"); + gst_element_set_state(pipeline, GST_STATE_PAUSED); + log_printf(INFO, "Set State: Playing"); + gst_element_set_state(pipeline, GST_STATE_PLAYING); + + signal_start(loop); + ret = writer_start(&writer); + if(!ret) { + g_main_loop_run(loop); + signal_stop(); + } + + log_printf(NOTICE, "Stopping pipeline"); + gst_element_set_state (pipeline, GST_STATE_NULL); + writer_stop(&writer); + gst_object_unref(GST_OBJECT(pipeline)); + + return ret; +} + +int main(int argc, char* argv[]) +{ + log_init(); + + options_t opt; + int ret = options_parse(&opt, argc, argv); + if(ret) { + if(ret > 0) + fprintf(stderr, "syntax error near: %s\n\n", argv[ret]); + if(ret == -2) + fprintf(stderr, "memory error on options_parse, exitting\n"); + if(ret == -3) + options_print_version(); + if(ret == -4) + fprintf(stderr, "the interval must be bigger than 0\n"); + + if(ret != -2 && ret != -3 && ret != -4) + options_print_usage(); + + if(ret == -1 || ret == -3) + ret = 0; + + options_clear(&opt); + log_close(); + exit(ret); + } + slist_element_t* tmp = opt.log_targets_.first_; + while(tmp) { + ret = log_add_target(tmp->data_); + if(ret) { + switch(ret) { + case -2: fprintf(stderr, "memory error on log_add_target, exitting\n"); break; + case -3: fprintf(stderr, "unknown log target: '%s', exitting\n", (char*)(tmp->data_)); break; + case -4: fprintf(stderr, "this log target is only allowed once: '%s', exitting\n", (char*)(tmp->data_)); break; + default: fprintf(stderr, "syntax error near: '%s', exitting\n", (char*)(tmp->data_)); break; + } + + options_clear(&opt); + log_close(); + exit(ret); + } + tmp = tmp->next_; + } + + log_printf(NOTICE, "just started..."); + options_parse_post(&opt); + + priv_info_t priv; + if(opt.username_) + if(priv_init(&priv, opt.username_, opt.groupname_)) { + options_clear(&opt); + log_close(); + exit(-1); + } + + FILE* pid_file = NULL; + if(opt.pid_file_) { + pid_file = fopen(opt.pid_file_, "w"); + if(!pid_file) { + log_printf(WARNING, "unable to open pid file: %s", strerror(errno)); + } + } + + if(opt.chroot_dir_) + if(do_chroot(opt.chroot_dir_)) { + options_clear(&opt); + log_close(); + exit(-1); + } + if(opt.username_) + if(priv_drop(&priv)) { + options_clear(&opt); + log_close(); + exit(-1); + } + + if(opt.daemonize_) { + pid_t oldpid = getpid(); + daemonize(); + log_printf(INFO, "running in background now (old pid: %d)", oldpid); + } + + if(pid_file) { + pid_t pid = getpid(); + fprintf(pid_file, "%d", pid); + fclose(pid_file); + } + + signal_init(); + gst_init(NULL, NULL); + const gchar *nano_str; + guint major, minor, micro, nano; + gst_version(&major, &minor, µ, &nano); + if (nano == 1) + nano_str = " (CVS)"; + else if (nano == 2) + nano_str = " (Prerelease)"; + else + nano_str = ""; + log_printf(NOTICE, "gstdvbbackend linked against GStreamer %d.%d.%d%s", major, minor, micro, nano_str); + + ret = main_loop(&opt); + + options_clear(&opt); + + log_printf(NOTICE, "gstdvbbackend shutdown"); + + gst_deinit(); + log_close(); + + return ret; +} diff --git a/src/log.c b/src/log.c new file mode 100644 index 0000000..524c2f3 --- /dev/null +++ b/src/log.c @@ -0,0 +1,262 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#include "datatypes.h" + +#include +#include +#include +#include +#include + +#include + +#define SYSLOG_NAMES +#include + +#include "log.h" + +log_t stdlog; + +#include "log_targets.h" + +const char* log_prio_to_string(log_prio_t prio) +{ + switch(prio) { + case ERROR: return "ERROR"; + case WARNING: return "WARNING"; + case NOTICE: return "NOTICE"; + case INFO: return "INFO"; + case DEBUG: return "DEBUG"; + } + return "UNKNOWN"; +} + +log_target_type_t log_target_parse_type(const char* conf) +{ + if(!conf) + return TARGET_UNKNOWN; + + if(!strncmp(conf, "syslog", 6)) return TARGET_SYSLOG; + if(!strncmp(conf, "file", 4)) return TARGET_FILE; + if(!strncmp(conf, "stdout", 6)) return TARGET_STDOUT; + if(!strncmp(conf, "stderr", 6)) return TARGET_STDERR; + + return TARGET_UNKNOWN; +} + +int log_targets_target_exists(log_targets_t* targets, log_target_type_t type) +{ + if(!targets && !targets->first_) + return 0; + + log_target_t* tmp = targets->first_; + while(tmp) { + if(tmp->type_ == type) + return 1; + tmp = tmp->next_; + } + return 0; +} + +int log_targets_add(log_targets_t* targets, const char* conf) +{ + if(!targets) + return -1; + + log_target_t* new_target = NULL; + int duplicates_allowed = 0; + switch(log_target_parse_type(conf)) { + case TARGET_SYSLOG: new_target = log_target_syslog_new(); break; + case TARGET_FILE: new_target = log_target_file_new(); duplicates_allowed = 1; break; + case TARGET_STDOUT: new_target = log_target_stdout_new(); break; + case TARGET_STDERR: new_target = log_target_stderr_new(); break; + default: return -3; + } + if(!new_target) + return -2; + + if(!duplicates_allowed && log_targets_target_exists(targets, new_target->type_)) { + free(new_target); + return -4; + } + + const char* prioptr = strchr(conf, ':'); + if(!prioptr || prioptr[1] == 0) { + free(new_target); + return -1; + } + prioptr++; + if(!isdigit(prioptr[0]) || (prioptr[1] != 0 && prioptr[1] != ',')) { + free(new_target); + return -1; + } + new_target->max_prio_ = prioptr[0] - '0'; + if(new_target->max_prio_ > 0) + new_target->enabled_ = 1; + + if(new_target->init != NULL) { + const char* confptr = NULL; + if(prioptr[1] != 0) + confptr = prioptr+2; + + int ret = (*new_target->init)(new_target, confptr); + if(ret) { + free(new_target); + return ret; + } + } + + if(new_target->open != NULL) + (*new_target->open)(new_target); + + + if(!targets->first_) { + targets->first_ = new_target; + } + else { + log_target_t* tmp = targets->first_; + while(tmp->next_) + tmp = tmp->next_; + + tmp->next_ = new_target; + } + return 0; +} + +void log_targets_log(log_targets_t* targets, log_prio_t prio, const char* msg) +{ + if(!targets) + return; + + log_target_t* tmp = targets->first_; + while(tmp) { + if(tmp->log != NULL && tmp->enabled_ && tmp->max_prio_ >= prio) + (*tmp->log)(tmp, prio, msg); + + tmp = tmp->next_; + } +} + +void log_targets_clear(log_targets_t* targets) +{ + if(!targets) + return; + + while(targets->first_) { + log_target_t* tmp = targets->first_; + targets->first_ = tmp->next_; + if(tmp->close != NULL) + (*tmp->close)(tmp); + if(tmp->clear != NULL) + (*tmp->clear)(tmp); + free(tmp); + } +} + + +void log_init() +{ + stdlog.max_prio_ = 0; + stdlog.targets_.first_ = NULL; + g_thread_init(NULL); + stdlog.log_mutex_ = g_mutex_new(); +} + +void log_close() +{ + g_mutex_lock(stdlog.log_mutex_); + log_targets_clear(&stdlog.targets_); + g_mutex_unlock(stdlog.log_mutex_); +} + +void update_max_prio() +{ + log_target_t* tmp = stdlog.targets_.first_; + while(tmp) { + if(tmp->enabled_ && tmp->max_prio_ > stdlog.max_prio_) + stdlog.max_prio_ = tmp->max_prio_; + + tmp = tmp->next_; + } +} + +int log_add_target(const char* conf) +{ + if(!conf) + return -1; + + g_mutex_lock(stdlog.log_mutex_); + int ret = log_targets_add(&stdlog.targets_, conf); + if(!ret) update_max_prio(); + g_mutex_unlock(stdlog.log_mutex_); + return ret; +} + +void log_printf(log_prio_t prio, const char* fmt, ...) +{ + if(stdlog.max_prio_ < prio) + return; + + char msg[MSG_LENGTH_MAX]; + va_list args; + + va_start(args, fmt); + vsnprintf(msg, MSG_LENGTH_MAX, fmt, args); + va_end(args); + + g_mutex_lock(stdlog.log_mutex_); + log_targets_log(&stdlog.targets_, prio, msg); + g_mutex_unlock(stdlog.log_mutex_); +} + +void log_print_hex_dump(log_prio_t prio, const uint8_t* buf, uint32_t len) +{ + if(stdlog.max_prio_ < prio) + return; + + char msg[MSG_LENGTH_MAX]; + + if(!buf) { + snprintf(msg, MSG_LENGTH_MAX, "(NULL)"); + } + else { + uint32_t i; + int offset = snprintf(msg, MSG_LENGTH_MAX, "dump(%d): ", len); + if(offset < 0) + return; + uint8_t* ptr = &msg[offset]; + + for(i=0; i < len; i++) { + if(((i+1)*3) >= (MSG_LENGTH_MAX - offset)) + break; + snprintf(ptr, 3, "%02X ", buf[i]); + ptr+=3; + } + } + g_mutex_lock(stdlog.log_mutex_); + log_targets_log(&stdlog.targets_, prio, msg); + g_mutex_unlock(stdlog.log_mutex_); +} diff --git a/src/log.h b/src/log.h new file mode 100644 index 0000000..d976733 --- /dev/null +++ b/src/log.h @@ -0,0 +1,83 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#ifndef GSTDVBBACKEND_log_h_INCLUDED +#define GSTDVBBACKEND_log_h_INCLUDED + +#include + +#define MSG_LENGTH_MAX 1024 + +enum log_prio_enum { ERROR = 1, WARNING = 2, NOTICE = 3, + INFO = 4, DEBUG = 5 }; +typedef enum log_prio_enum log_prio_t; + +const char* log_prio_to_string(log_prio_t prio); + +enum log_target_type_enum { TARGET_SYSLOG , TARGET_STDOUT, TARGET_STDERR, TARGET_FILE , TARGET_UNKNOWN }; +typedef enum log_target_type_enum log_target_type_t; + +struct log_target_struct { + log_target_type_t type_; + int (*init)(struct log_target_struct* self, const char* conf); + void (*open)(struct log_target_struct* self); + void (*log)(struct log_target_struct* self, log_prio_t prio, const char* msg); + void (*close)(struct log_target_struct* self); + void (*clear)(struct log_target_struct* self); + int opened_; + int enabled_; + log_prio_t max_prio_; + void* param_; + struct log_target_struct* next_; +}; +typedef struct log_target_struct log_target_t; + + +struct log_targets_struct { + log_target_t* first_; +}; +typedef struct log_targets_struct log_targets_t; + +int log_targets_target_exists(log_targets_t* targets, log_target_type_t type); +int log_targets_add(log_targets_t* targets, const char* conf); +void log_targets_log(log_targets_t* targets, log_prio_t prio, const char* msg); +void log_targets_clear(log_targets_t* targets); + + +struct log_struct { + log_prio_t max_prio_; + log_targets_t targets_; + GMutex* log_mutex_; +}; +typedef struct log_struct log_t; + +void log_init(); +void log_close(); +void update_max_prio(); +int log_add_target(const char* conf); +void log_printf(log_prio_t prio, const char* fmt, ...); +void log_print_hex_dump(log_prio_t prio, const uint8_t* buf, uint32_t len); + +#endif diff --git a/src/log_targets.h b/src/log_targets.h new file mode 100644 index 0000000..8d29c38 --- /dev/null +++ b/src/log_targets.h @@ -0,0 +1,354 @@ +/* + * gstdvbbackend + * + * gstdvbbackend is a small programm which captures a given set of dvb + * channels from one dvb device and provides the streams via minimal http. + * + * + * Copyright (C) 2011 Christian Pointner + * + * This file is part of gstdvbbackend. + * + * gstdvbbackend 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 + * any later version. + * + * gstdvbbackend 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 gstdvbbackend. If not, see . + */ + +#ifndef GSTDVBBACKEND_log_targets_h_INCLUDED +#define GSTDVBBACKEND_log_targets_h_INCLUDED + +#include + +static char* get_time_formatted() +{ + char* time_string; + time_t t = time(NULL); + if(t < 0) + time_string = "