mirror of
https://github.com/octoleo/lsyncd.git
synced 2025-01-05 16:12:32 +00:00
this time really just astyled the source, please skip last commit.
This commit is contained in:
Axel Kittenberger
parent
846ec0acb9
commit
c91e84045b
244
lsyncd.c
244
lsyncd.c
@ -1,12 +1,11 @@
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/**
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* lsyncd.c Live (Mirror) Syncing Demon
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*
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* License: GPLv2 (see COPYING) or any later version
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*
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* Authors: Axel Kittenberger <axel.kittenberger@univie.ac.at>
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* Eugene Sanivsky <eugenesan@gmail.com>
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*/
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* lsyncd.c Live (Mirror) Syncing Demon
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*
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* License: GPLv2 (see COPYING) or any later version
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*
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* Authors: Axel Kittenberger <axel.kittenberger@univie.ac.at>
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* Eugene Sanivsky <eugenesan@gmail.com>
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*/
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#include "config.h"
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#include <sys/types.h>
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@ -64,7 +63,7 @@ char * option_target = NULL;
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/**
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* Option: rsync binary to call.
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*/
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char * rsync_binary = "/usr/local/bin/lsyncd.nice";
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char * rsync_binary = "/usr/bin/rsync";
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/**
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* Option: the exclude-file to pass to rsync.
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@ -82,17 +81,17 @@ char * exclude_file = NULL;
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struct dir_watch {
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/**
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* The watch descriptor returned by kernel.
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*/
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* The watch descriptor returned by kernel.
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*/
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int wd;
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/**
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* The name of the directory.
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* In case of the root dir to be watched, it is a full path
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* and parent == NULL. Otherwise its just the name of the
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* directory and parent points to the parent directory thats
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* also watched.
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*/
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* The name of the directory.
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* In case of the root dir to be watched, it is a full path
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* and parent == NULL. Otherwise its just the name of the
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* directory and parent points to the parent directory thats
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* also watched.
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*/
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char * dirname;
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/**
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@ -102,9 +101,9 @@ struct dir_watch {
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char * destname;
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/**
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* Points to the index of the parent.
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* -1 if no parent
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*/
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* Points to the index of the parent.
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* -1 if no parent
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*/
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int parent;
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};
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@ -159,20 +158,22 @@ int dir_watch_num = 0;
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/**
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* lsyncd will log into this file/stream.
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*/
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char *logfile = "/var/log/lsyncd";
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char * logfile = "/var/log/lsyncd";
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/**
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* The inotify instance.
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*/
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int inotf;
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/**
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* Array of strings of directory names to include.
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* This is limited to MAX_EXCLUDES.
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* It's not worth to code a dynamic size handling...
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*/
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#define MAX_EXCLUDES 256
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char *exclude_dirs[MAX_EXCLUDES] = {NULL, };
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char * exclude_dirs[MAX_EXCLUDES] = {NULL, };
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int exclude_dir_n = 0;
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volatile sig_atomic_t keep_going = 1;
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@ -182,7 +183,6 @@ void catch_alarm(int sig)
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keep_going = 0;
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}
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/**
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* Prints a message to the log stream, preceding a timestamp.
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* Otherwise it behaves like printf();
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@ -239,23 +239,6 @@ void printlogf(int level, const char *fmt, ...)
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}
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}
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/**
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* Checks if a path is a directory
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* Returns true on success, false on negative and -1 on error
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*/
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int is_dir(char const *path)
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{
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struct stat statbuf;
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if (lstat(path, &statbuf) == -1) {
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printlogf(LOG_ERROR, "[%s]: while calling stat()", (char*)strerror);
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return -1;
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} else {
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return S_ISDIR(statbuf.st_mode);
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}
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}
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/**
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* "secured" malloc, meaning the deamon shall kill itself
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* in case of out of memory.
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@ -316,32 +299,19 @@ void *s_realloc(void *ptr, size_t size)
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* @param dest Destination string,
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* @param recursive If true -r will be handled on, -d (single directory) otherwise
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*/
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bool rsync(char const *src, const char *dest, bool recursive)
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bool rsync(char const * src, const char * dest, bool recursive)
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{
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pid_t pid;
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int status;
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char const *opts, *rsync_debug;
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if (recursive) {
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opts="--owner --group --devices --specials --super --perms --executability --one-file-system -ltr";
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} else {
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opts="--owner --group --devices --specials --super --perms --executability --one-file-system -ltd";
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}
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if (LOG_DEBUG == 1) {
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rsync_debug="-P";
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} else {
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rsync_debug="";
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}
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char const * opts = recursive ? "-ltr" : "-ltd";
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if (exclude_file) {
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printlogf(LOG_DEBUG, "exec %s(%s,%s,%s,%s,%s,%s,%s)", rsync_binary, rsync_debug, "--delete", opts, "--exclude-from", exclude_file, src, dest);
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printlogf(LOG_DEBUG, "exec %s(%s,%s,%s,%s,%s,%s)", rsync_binary, "--delete", opts, "--exclude-from", exclude_file, src, dest);
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} else {
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printlogf(LOG_DEBUG, "exec %s(%s,%s,%s,%s,%s)", rsync_binary, rsync_debug, "--delete", opts, src, dest);
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printlogf(LOG_DEBUG, "exec %s(%s,%s,%s,%s)", rsync_binary, "--delete", opts, src, dest);
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}
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if (flag_dryrun) {
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printlogf(LOG_DEBUG, "Rsync skipped due to dry mode.");
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return true;
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}
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@ -356,7 +326,7 @@ bool rsync(char const *src, const char *dest, bool recursive)
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if (exclude_file) {
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execl(rsync_binary, rsync_binary, "--delete", opts, "--exclude-from", exclude_file, src, dest, NULL);
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} else {
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e xecl(rsync_binary, rsync_binary, "--delete", opts, src, dest, NULL);
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execl(rsync_binary, rsync_binary, "--delete", opts, src, dest, NULL);
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}
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printlogf(LOG_ERROR, "oh my god, execl returned!");
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@ -366,10 +336,11 @@ bool rsync(char const *src, const char *dest, bool recursive)
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waitpid(pid, &status, 0);
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printlogf(LOG_DEBUG, "Rsync of [%s] -> [%s] finished", src, dest);
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return true;
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}
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/**
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* Adds a directory to watch
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*
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@ -380,7 +351,7 @@ bool rsync(char const *src, const char *dest, bool recursive)
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*
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* @return index to dir_watches of the new dir, -1 on error.
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*/
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int add_watch(char const *pathname, char const *dirname, char const *destname, int parent)
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int add_watch(char const * pathname, char const * dirname, char const * destname, int parent)
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{
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int wd;
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char * nn;
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@ -430,6 +401,7 @@ int add_watch(char const *pathname, char const *dirname, char const *destname, i
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return newdw;
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}
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/**
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* Builds the abolute path name of a given directory beeing watched.
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*
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@ -443,10 +415,10 @@ bool buildpath(char *pathname,
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int pathsize,
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int watch,
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char const *name,
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char const *prefix)
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char const * prefix)
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{
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int j, k, p, ps;
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pathname[0] = 0;
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if (prefix) {
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@ -454,14 +426,16 @@ bool buildpath(char *pathname,
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}
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// count how big the parent stack is
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for (p = watch, ps = 0; p != -1; p = dir_watches[p].parent, ps++) {}
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for (p = watch, ps = 0; p != -1; p = dir_watches[p].parent, ps++) {
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}
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// now add the parent paths from back to front
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for (j = ps; j > 0; j--) {
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char * name;
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// go j steps behind stack
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for (p = watch, k = 0; k + 1 < j; p = dir_watches[p].parent, k++) {}
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for (p = watch, k = 0; k + 1 < j; p = dir_watches[p].parent, k++) {
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}
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name = (prefix && dir_watches[p].destname) ? dir_watches[p].destname : dir_watches[p].dirname;
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@ -496,36 +470,32 @@ bool buildpath(char *pathname,
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* @param parent If not -1, the index in dir_watches to the parent directory already watched.
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* Must have absolute path if parent == -1.
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*/
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bool add_dirwatch(char const *dirname, char const *destname, bool recursive, int parent)
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bool add_dirwatch(char const * dirname, char const * destname, bool recursive, int parent)
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{
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DIR *d;
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struct dirent *de;
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int dw, i;
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char pathname[MAX_PATH], fullpath[MAX_PATH];
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char pathname[MAX_PATH];
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printlogf(LOG_DEBUG, "add_dirwatch(%s, %s, %d, p->dirname:%s)", dirname, destname, recursive, parent >= 0 ? dir_watches[parent].dirname : "NULL");
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if (!buildpath(pathname, sizeof(pathname), parent, dirname, NULL)) {
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printlogf(LOG_ERROR, "Building path for [%s] failed.", dirname);
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return false;
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}
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for (i = 0; i < exclude_dir_n; i++) {
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// TODO explain
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if ( (strstr(pathname, exclude_dirs[i]) - pathname) == (strlen(pathname) - strlen(exclude_dirs[i])) ) {
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printlogf(LOG_DEBUG, "add_dirwatch::excluded(%s[%s], %s)", dirname, pathname, exclude_dirs[i]);
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return false;
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if (!strcmp(dirname, exclude_dirs[i])) {
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return true;
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}
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}
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dw = add_watch(pathname, dirname, destname, parent);
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if (dw == -1) {
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printlogf(LOG_ERROR, "add_watch(%s)failed.", dirname);
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return false;
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}
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printlogf(LOG_DEBUG, "add_dirwatch::added(%s[%s], %s, %d, p->dirname:%s)", dirname, pathname, destname, recursive, parent >= 0 ? dir_watches[parent].dirname : "NULL");
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if (strlen(pathname) + strlen(dirname) + 2 > sizeof(pathname)) {
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printlogf(LOG_ERROR, "pathname too long %s//%s", pathname, dirname);
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return false;
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@ -538,20 +508,16 @@ bool add_dirwatch(char const *dirname, char const *destname, bool recursive, int
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return false;
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}
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while (de = readdir(d)) {
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sprintf(fullpath, "%s/%s", pathname, de->d_name);
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//printlogf(LOG_DEBUG, "Checking if [%s] is a folder.", fullpath);
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// why was DT_DIR not good?
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while (keep_going) {
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de = readdir(d);
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if ((is_dir(fullpath) == true) && strcmp(de->d_name, "..") && strcmp(de->d_name, ".")) {
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//printlogf(LOG_DEBUG, "Going deeper to %s.", de->d_name);
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add_dirwatch(de->d_name, NULL, true, dw);
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if (de == NULL) {
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break;
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}
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/*else
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{
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printlogf(LOG_DEBUG, "Not going deeper, since object %s is not folder.", de->d_name);
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}*/
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if (de->d_type == DT_DIR && strcmp(de->d_name, "..") && strcmp(de->d_name, ".")) {
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add_dirwatch(de->d_name, NULL, true, dw);
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}
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}
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closedir(d);
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@ -575,8 +541,7 @@ bool remove_dirwatch(const char * name, int parent)
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// look for the child with the name
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for (i = 0; i < dir_watch_num; i++) {
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if (dir_watches[i].wd >= 0 && dir_watches[i].parent == parent &&
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!strcmp(name, dir_watches[i].dirname)
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) {
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!strcmp(name, dir_watches[i].dirname)) {
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dw = i;
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break;
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}
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@ -633,7 +598,6 @@ bool handle_event(struct inotify_event *event)
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for (i = 0; i < exclude_dir_n; i++) {
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if (!strcmp(event->name, exclude_dirs[i])) {
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printlogf(LOG_DEBUG, "Event on [%s] ignored due to exclude rules", event->name);
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return true;
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}
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}
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@ -664,12 +628,9 @@ bool handle_event(struct inotify_event *event)
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return false;
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}
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if (((IN_CREATE) & event->mask) && (IN_ISDIR & event->mask)) {
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add_dirwatch(event->name, NULL, false, i);
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}
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if (((IN_MOVED_TO) & event->mask) && (IN_ISDIR & event->mask)) {
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add_dirwatch(event->name, NULL, true, i);
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if (((IN_CREATE | IN_MOVED_TO) & event->mask) && (IN_ISDIR & event->mask)) {
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add_dirwatch(event->name, NULL, false, i);
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}
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if (((IN_DELETE | IN_MOVED_FROM) & event->mask) && (IN_ISDIR & event->mask)) {
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@ -687,12 +648,7 @@ bool handle_event(struct inotify_event *event)
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// call rsync to propagate changes in the directory
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if ((IN_CREATE | IN_CLOSE_WRITE | IN_DELETE | IN_MOVED_TO | IN_MOVED_FROM) & event->mask) {
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printlogf(LOG_NORMAL, "%s of %s in %s --> %s", masktext, event->name, pathname, destname);
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if (IN_MOVED_TO & event->mask) {
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rsync(pathname, destname, true);
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} else {
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rsync(pathname, destname, false);
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}
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rsync(pathname, destname, false);
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}
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return 0;
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@ -724,9 +680,7 @@ bool master_loop()
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while (i < len) {
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struct inotify_event *event = (struct inotify_event *) &buf[i];
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printlogf(LOG_DEBUG, "Event [%d] started", i);
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handle_event(event);
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printlogf(LOG_DEBUG, "Event [%d] finished", i);
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i += sizeof(struct inotify_event) + event->len;
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}
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}
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@ -738,72 +692,51 @@ bool master_loop()
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* Scans all dirs in /home, looking if a www subdir exists.
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* Syncs this dir immediately, and adds watches to it.
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*/
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bool scan_users(char *users_path, char *user_priv)
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bool scan_homes()
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{
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DIR *d;
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DIR *d2;
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char user_path[MAX_PATH], src_path[MAX_PATH], dest_path[MAX_PATH], dest_rel_path[MAX_PATH], src_mask[MAX_PATH], prepare_target_path[MAX_PATH];
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char prepare_target_cmd[8192];
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struct stat *de_stat;
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char path[MAX_PATH];
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char destpath[MAX_PATH];
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struct dirent *de;
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int sl;
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printlogf(LOG_DEBUG, "Scanning in [%s] for available users", users_path);
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d = opendir(users_path);
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d = opendir("/home");
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if (d == NULL) {
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printlogf(LOG_ERROR, "Cannot open [%s]", users_path);
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printlogf(LOG_ERROR, "Cannot open /home");
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return false;
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} else {
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snprintf(prepare_target_path, sizeof(prepare_target_path), "%s/%s", option_target, users_path);
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snprintf(prepare_target_cmd, sizeof(prepare_target_cmd), "mkdir -p %s; chmod 777 %s;", prepare_target_path, prepare_target_path);
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printlogf(LOG_DEBUG, "exec [%s]", prepare_target_cmd);
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system(prepare_target_cmd);
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}
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while (de = readdir(d)) {
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snprintf(user_path, sizeof(user_path), "%s/%s", users_path, de->d_name);
|
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while (keep_going) {
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de = readdir(d);
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if ((is_dir(user_path) == true) && strcmp(de->d_name, "..") && strcmp(de->d_name, ".")) {
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snprintf(src_mask, sizeof(src_mask), "%s/%s/%s", users_path, de->d_name, user_priv);
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snprintf(src_path, sizeof(src_path), src_mask, de->d_name);
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sl = strlen(src_path);
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if (de == NULL) {
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break;
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}
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if (src_path[sl - 1] == '/') {
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src_path[sl - 1] = 0;
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sl--;
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if (de->d_type == DT_DIR && strcmp(de->d_name, "..") && strcmp(de->d_name, ".")) {
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snprintf(path, sizeof(path), "/home/%s/www/", de->d_name);
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d2 = opendir(path);
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if (sl == 0) {
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continue;
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}
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}
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if (!(d2 = opendir(src_path))) {
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printlogf(LOG_NORMAL, "Skipping %s. Can not read priv directory.", src_path);
|
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if (d2 == NULL) {
|
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//has no www dir or is not readable
|
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printlogf(LOG_NORMAL, "skipping %s. it has no readable www directory.", de->d_name);
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continue;
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} else {
|
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printlogf(LOG_NORMAL, "Proccessing priv directory [%s:%s].", src_mask, src_path);
|
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}
|
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closedir(d2);
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snprintf(dest_path, sizeof(dest_path), "%s%s/%s/", option_target, users_path, de->d_name);
|
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snprintf(dest_rel_path, sizeof(dest_rel_path), "%s/%s/", users_path, de->d_name);
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printlogf(LOG_NORMAL, "watching %s's www directory (%s)", de->d_name, path);
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add_dirwatch(path, de->d_name, true, -1);
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|
||||
if (add_dirwatch(src_path, dest_rel_path, true, -1)) {
|
||||
// Not syncing if skipped
|
||||
rsync(src_path, dest_path, true);
|
||||
}
|
||||
} else {
|
||||
printlogf(LOG_DEBUG, "*\tSkipping [%s]", de->d_name);
|
||||
snprintf(destpath, sizeof(destpath), "%s/%s/", option_target, de->d_name);
|
||||
rsync(path, destpath, true);
|
||||
}
|
||||
}
|
||||
|
||||
printlogf(LOG_DEBUG, "Finished scanning in [%s] for users", users_path);
|
||||
|
||||
closedir(d);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -818,7 +751,7 @@ void print_help(char *arg0)
|
||||
printf("USAGE: %s [OPTION]... SOURCE TARGET\n", arg0);
|
||||
printf("\n");
|
||||
printf("SOURCE: a directory to watch and rsync.\n");
|
||||
printf(" specify special \"%users%\" to monitor all users folders. \n");
|
||||
printf(" specify special \"%%userwww\" to scan all users in /home and watch their www directories. \n");
|
||||
printf("\n");
|
||||
printf("TARGET: can be any name accepted by rsync. e.g. \"foohost::barmodule/\"\n");
|
||||
printf("\n");
|
||||
@ -964,11 +897,11 @@ bool parse_exclude_file()
|
||||
continue;
|
||||
}
|
||||
|
||||
exclude_dirs[exclude_dir_n] = s_malloc(strlen(line) + 1);
|
||||
printlogf(LOG_NORMAL, "Excluding directories of the name '%s'", line);
|
||||
|
||||
exclude_dirs[exclude_dir_n] = s_malloc(strlen(line) + 1);
|
||||
strcpy(exclude_dirs[exclude_dir_n], line);
|
||||
exclude_dir_n++;
|
||||
printlogf(LOG_NORMAL, "Excluding directory [%s] from syncing.", line);
|
||||
}
|
||||
}
|
||||
|
||||
@ -981,7 +914,6 @@ bool parse_exclude_file()
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
if (!parse_options(argc, argv)) {
|
||||
printlogf(LOG_ERROR, "Invalid parameters specified!");
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -1005,22 +937,16 @@ int main(int argc, char **argv)
|
||||
dir_watch_size = 2;
|
||||
dir_watches = s_calloc(dir_watch_size, sizeof(struct dir_watch));
|
||||
|
||||
if (!strcmp(option_source, "%users%")) {
|
||||
printlogf(LOG_NORMAL, "Switching to users mode");
|
||||
scan_users("/home", "");
|
||||
scan_users("/scratchbox/users", "home/%s/");
|
||||
if (!strcmp(option_source, "%userwww")) {
|
||||
printlogf(LOG_NORMAL, "do userwww");
|
||||
scan_homes();
|
||||
} else {
|
||||
printlogf(LOG_NORMAL, "Watching %s", option_source);
|
||||
|
||||
if (add_dirwatch(option_source, "", true, -1) == -2) {
|
||||
printlogf(LOG_ERROR, "Adding folder skipped, probably excluded. Nothing left to to, exiting.");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
printlogf(LOG_NORMAL, "watching %s", option_source);
|
||||
add_dirwatch(option_source, "", true, -1);
|
||||
rsync(option_source, option_target, true);
|
||||
}
|
||||
|
||||
printlogf(LOG_NORMAL, "--- Entering normal operation with [%d] monitored directories ---", dir_watch_num);
|
||||
printlogf(LOG_NORMAL, "---entering normal operation---");
|
||||
|
||||
signal(SIGTERM, catch_alarm);
|
||||
master_loop();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user