added usage print, tiny improvements throughout the code
Bu işleme şunda yer alıyor:
ebeveyn
58f2a92a4e
işleme
dc8af94194
171
adhocify.c
171
adhocify.c
@ -20,16 +20,16 @@
|
||||
#define BUF_SIZE (sizeof(struct inotify_event) * 1024) + 255
|
||||
#define STREQ(s1,s2) ( strcmp(s1,s2) == 0 )
|
||||
|
||||
struct ifdLookup
|
||||
struct watchlistentry
|
||||
{
|
||||
int ifd;
|
||||
char *path;
|
||||
bool isdir;
|
||||
struct ifdLookup *next;
|
||||
struct watchlistentry *next;
|
||||
};
|
||||
|
||||
struct ifdLookup *lkp_head = NULL;
|
||||
struct ifdLookup **lookup = &lkp_head;
|
||||
struct watchlistentry *watchlist_head = NULL;
|
||||
struct watchlistentry **watchlist = &watchlist_head;
|
||||
|
||||
|
||||
|
||||
@ -81,29 +81,47 @@ char *xrealpath(const char *path, char *resolved_path)
|
||||
|
||||
char *ndirname(const char *path)
|
||||
{
|
||||
if(path == NULL) return xstrdup(".");
|
||||
if(path == NULL)
|
||||
return xstrdup(".");
|
||||
char *c = strdupa(path);
|
||||
return xstrdup(dirname(c));
|
||||
}
|
||||
|
||||
char *find_ifd_path(int ifd)
|
||||
{
|
||||
for(struct ifdLookup *lkp = lkp_head; lkp != NULL; lkp = lkp->next)
|
||||
for(struct watchlistentry *lkp = watchlist_head; lkp != NULL; lkp = lkp->next)
|
||||
if(lkp->ifd == ifd)
|
||||
return lkp->path;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
|
||||
bool is_ignored(const char *str)
|
||||
bool is_ignored(const char *filename)
|
||||
{
|
||||
for(struct ignorelist *l = ignorelist_head; l != NULL; l = l->next)
|
||||
if(fnmatch(l->ignore, str, 0) == 0)
|
||||
if(fnmatch(l->ignore, filename, 0) == 0)
|
||||
return true;
|
||||
return false;
|
||||
}
|
||||
|
||||
bool path_is_directory(const char *path)
|
||||
{
|
||||
struct stat sb;
|
||||
int r = stat(path, &sb);
|
||||
if(r == -1)
|
||||
{
|
||||
perror("stat");
|
||||
return false;
|
||||
}
|
||||
return S_ISDIR(sb.st_mode);
|
||||
}
|
||||
|
||||
static inline bool path_exists(const char *path)
|
||||
{
|
||||
struct stat sb;
|
||||
return stat(path, &sb) != -1;
|
||||
}
|
||||
|
||||
|
||||
void add_ignore_list(const char *str)
|
||||
{
|
||||
*ignorelist_current = xmalloc(sizeof(struct ignorelist));
|
||||
@ -138,31 +156,21 @@ void logerror(const char *format, ...)
|
||||
|
||||
}
|
||||
|
||||
void queue_watch(char *pathname)
|
||||
void watchqueue_addpath(const char *pathname)
|
||||
{
|
||||
struct stat sb;
|
||||
int s = stat(pathname, &sb);
|
||||
if(s == -1)
|
||||
{
|
||||
perror("stat");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
*lookup = xmalloc(sizeof(struct ifdLookup));
|
||||
struct ifdLookup *lkp = *lookup;
|
||||
*watchlist = xmalloc(sizeof(struct watchlistentry));
|
||||
struct watchlistentry *e = *watchlist;
|
||||
char *path = xrealpath(pathname, NULL);
|
||||
|
||||
lkp->ifd = 0;
|
||||
lkp->path = path;
|
||||
lkp->isdir = S_ISDIR(sb.st_mode);
|
||||
lkp->next = NULL;
|
||||
lookup = &lkp->next;
|
||||
e->ifd = 0;
|
||||
e->path = path;
|
||||
e->isdir = path_is_directory(pathname);
|
||||
e->next = NULL;
|
||||
watchlist= &e->next;
|
||||
}
|
||||
|
||||
void start_watches(int fd, uint32_t mask)
|
||||
{
|
||||
|
||||
struct ifdLookup *lkp = lkp_head;
|
||||
for(; lkp != NULL; lkp = lkp->next)
|
||||
for(struct watchlistentry *lkp = watchlist_head; lkp != NULL; lkp = lkp->next)
|
||||
{
|
||||
int ret = inotify_add_watch(fd, lkp->path, mask);
|
||||
if(ret == -1)
|
||||
@ -198,16 +206,14 @@ bool redirect_stdout(const char *outfile)
|
||||
//outfile: to log output of the program to be executed
|
||||
//mask: occured adhocify event
|
||||
//noappend: supply the adhocify event as an environment variable to the program to be executed
|
||||
bool run( char *path, char *eventfile, const char *outfile, uint32_t mask, bool noappend)
|
||||
bool run(const char *path, const char *eventfile, const char *outfile, uint32_t mask, bool noappend)
|
||||
{
|
||||
char *envvar = NULL;
|
||||
struct stat sb;
|
||||
if(stat(path, &sb) == -1)
|
||||
{
|
||||
perror("stat");
|
||||
return false;
|
||||
}
|
||||
|
||||
if(! path_exists(path))
|
||||
{
|
||||
perror("path_exists");
|
||||
return false;
|
||||
}
|
||||
|
||||
pid_t pid = fork();
|
||||
if(pid == 0)
|
||||
{
|
||||
@ -217,10 +223,10 @@ bool run( char *path, char *eventfile, const char *outfile, uint32_t mask, bool
|
||||
return false;
|
||||
}
|
||||
|
||||
char *argv0 = memrchr(path, '/', strlen(path));
|
||||
const char *argv0 = memrchr(path, '/', strlen(path));
|
||||
argv0 = ( argv0 == NULL ) ? path : argv0+1;
|
||||
|
||||
envvar = xmalloc(19 * sizeof(char));
|
||||
char *envvar = xmalloc(19 * sizeof(char));
|
||||
sprintf(envvar, "adhocifyevent=%"PRIu32, mask);
|
||||
putenv(envvar);
|
||||
|
||||
@ -273,22 +279,21 @@ uint32_t nameToMask(char *name)
|
||||
|
||||
}
|
||||
|
||||
void check_forkbomb(char *dir_log, char *dir_prog)
|
||||
void check_forkbomb(const char *path_logfile, const char *path_prog)
|
||||
{
|
||||
dir_log = ndirname(dir_log);
|
||||
dir_prog = ndirname(dir_prog);
|
||||
char *dir_log = ndirname(path_logfile);
|
||||
char *dir_prog = ndirname(path_prog);
|
||||
|
||||
struct ifdLookup *lkp = lkp_head;
|
||||
struct watchlistentry *lkp = watchlist_head;
|
||||
while(lkp)
|
||||
{
|
||||
if(lkp->isdir)
|
||||
{
|
||||
|
||||
char *dir_lkpPath = lkp->path;
|
||||
if( STREQ(dir_lkpPath, dir_log)
|
||||
|| STREQ(dir_lkpPath, dir_prog))
|
||||
if( STREQ(dir_lkpPath, dir_log) || STREQ(dir_lkpPath, dir_prog) )
|
||||
{
|
||||
logerror("Don't place your logfiles or prog in a directory you are watching for events\n");
|
||||
logerror("Don't place your logfiles or prog in a directory you are watching for events. Pass -b to bypass this check.\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
@ -308,7 +313,7 @@ void queue_watches_from_stdin()
|
||||
while((r = getline(&line, &n, stdin)) != -1)
|
||||
{
|
||||
if(line[r-1] == '\n') line[r-1] = 0;
|
||||
queue_watch(line);
|
||||
watchqueue_addpath(line);
|
||||
}
|
||||
}
|
||||
|
||||
@ -331,7 +336,7 @@ char *get_eventfile_abspath(struct inotify_event *event)
|
||||
}
|
||||
|
||||
|
||||
void handle_event(struct inotify_event *event, uint32_t mask, char *prog, const char *logfile, bool noappend)
|
||||
void handle_event(struct inotify_event *event, uint32_t mask, const char *prog, const char *logfile, bool noappend)
|
||||
{
|
||||
if(event->mask & mask)
|
||||
{
|
||||
@ -342,7 +347,8 @@ void handle_event(struct inotify_event *event, uint32_t mask, char *prog, const
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if(is_ignored(eventfile_abspath)) return;
|
||||
if(is_ignored(eventfile_abspath))
|
||||
return;
|
||||
|
||||
logwrite("Starting execution of child %s\n", prog);
|
||||
bool r = run(prog, eventfile_abspath, logfile, event->mask, noappend);
|
||||
@ -359,6 +365,25 @@ void handle_event(struct inotify_event *event, uint32_t mask, char *prog, const
|
||||
}
|
||||
}
|
||||
|
||||
static inline char *cur_wkdir()
|
||||
{
|
||||
return getcwd(NULL,0);
|
||||
}
|
||||
|
||||
void print_usage()
|
||||
{
|
||||
printf("adhocify [OPTIONS] script\n");
|
||||
|
||||
printf("-d daemonize\n");
|
||||
printf("-w path -- adds the specified path to the watchlist\n");
|
||||
printf("-o logfile -- output goes here\n");
|
||||
printf("-m maskval -- inotify mask value. Can be specified multiple times, will be ORed.\n");
|
||||
printf("-a if specified, the inotify event which occured won't be passed to the script as an envvar.\n");
|
||||
printf("-q silent\n");
|
||||
printf("-s Read the paths which must be added to the watchlist from stdin. Each path in a seperate line\n");
|
||||
printf("-b Disable fork bomb detection\n");
|
||||
printf("-i pattern -- Ignore events on files for which the pattern matches\n");
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
@ -369,12 +394,12 @@ int main(int argc, char **argv)
|
||||
bool forkbombcheck=true;
|
||||
int option;
|
||||
int ifd;
|
||||
char *logfile = NULL;
|
||||
char *path_logfile = NULL;
|
||||
char *watchpath = NULL;
|
||||
|
||||
if(argc < 2)
|
||||
{
|
||||
logwrite("Insert usage text here\n");
|
||||
print_usage();
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
@ -392,7 +417,7 @@ int main(int argc, char **argv)
|
||||
}
|
||||
break;
|
||||
case 'o':
|
||||
logfile = optarg;
|
||||
path_logfile = optarg;
|
||||
break;
|
||||
case 'm':
|
||||
optmask = nameToMask(optarg);
|
||||
@ -404,7 +429,7 @@ int main(int argc, char **argv)
|
||||
break;
|
||||
case 'w':
|
||||
watchpath = optarg;
|
||||
queue_watch(watchpath);
|
||||
watchqueue_addpath(watchpath);
|
||||
break;
|
||||
case 'a':
|
||||
noappend=true;
|
||||
@ -421,24 +446,25 @@ int main(int argc, char **argv)
|
||||
case 'q':
|
||||
silent=true;
|
||||
break;
|
||||
case 'h':
|
||||
print_usage();
|
||||
exit(EXIT_SUCCESS);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(lkp_head == NULL)
|
||||
if(watchlist_head == NULL)
|
||||
{
|
||||
watchpath = getcwd(NULL,0);
|
||||
if(watchpath == NULL)
|
||||
{
|
||||
perror("getcwd");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
queue_watch(watchpath);
|
||||
watchpath = cur_wkdir();
|
||||
watchqueue_addpath(watchpath);
|
||||
}
|
||||
|
||||
if(fromstdin)
|
||||
queue_watches_from_stdin();
|
||||
|
||||
if(mask == 0) mask |= IN_CLOSE_WRITE;
|
||||
if(mask == 0)
|
||||
mask |= IN_CLOSE_WRITE;
|
||||
|
||||
if(optind >= argc)
|
||||
{
|
||||
logerror("missing prog/script path\n");
|
||||
@ -447,14 +473,14 @@ int main(int argc, char **argv)
|
||||
|
||||
char *prog = argv[optind];
|
||||
|
||||
if(logfile)
|
||||
logfile = xrealpath(logfile, NULL);
|
||||
if(path_logfile)
|
||||
path_logfile = xrealpath(path_logfile, NULL);
|
||||
|
||||
|
||||
if(forkbombcheck)
|
||||
{
|
||||
char *path_prog = xrealpath(prog, NULL);
|
||||
check_forkbomb(logfile, path_prog);
|
||||
check_forkbomb(path_logfile, path_prog);
|
||||
}
|
||||
|
||||
ifd = inotify_init();
|
||||
@ -463,25 +489,26 @@ int main(int argc, char **argv)
|
||||
while(1)
|
||||
{
|
||||
int len;
|
||||
int i =0;
|
||||
int offset =0;
|
||||
char buf[BUF_SIZE];
|
||||
len = read(ifd, buf, BUF_SIZE);
|
||||
if(len == -1)
|
||||
{
|
||||
if(errno == EINTR) continue;
|
||||
if(errno == EINTR)
|
||||
continue;
|
||||
perror("read");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
while(i < len)
|
||||
while(offset < len)
|
||||
{
|
||||
|
||||
struct inotify_event *event = (struct inotify_event *)&buf[i];
|
||||
struct inotify_event *event = (struct inotify_event *)&buf[offset];
|
||||
|
||||
handle_event(event, mask, prog, logfile, noappend);
|
||||
handle_event(event, mask, prog, path_logfile, noappend);
|
||||
|
||||
|
||||
i+=sizeof(struct inotify_event) + event->len;
|
||||
offset+=sizeof(struct inotify_event) + event->len;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Yükleniyor…
Yeni konuda referans
Bir kullanıcı engelle