void safe_exit(int code)
{
char *dummy, *dammy;
dump_close();
#ifdef HAVE_TERMIOS
if(param.term_ctrl)
term_restore();
#endif
if(have_output) exit_output(ao, intflag);
if(mh != NULL) mpg123_delete(mh);
if(cleanup_mpg123) mpg123_exit();
httpdata_free(&htd);
#ifdef WANT_WIN32_UNICODE
win32_cmdline_free(argc, argv); /* This handles the premature argv == NULL, too. */
#endif
#if defined (WANT_WIN32_SOCKETS)
win32_net_deinit();
#endif
/* It's ugly... but let's just fix this still-reachable memory chunk of static char*. */
split_dir_file("", &dummy, &dammy);
exit(code);
}
//rd_open, will require a pid, really only accessible via the kernel
int rd_open(char* pathname){
char *dir_path;
char *filename;
int pid = 5; //for now its five, fix this later when we aren't in userspace
split_dir_file(pathname, &dir_path, &filename);
int root_check = strcmp(dir_path, "/");
if(filename != NULL && root_check == 0){
int new_fd = allocate_fd(pid, 0);
printf("rd_open success\n");
return new_fd;
}
int find_inode = get_dir_inode(dir_path, 0);
//search if such a directory exists
if(find_inode > -1){
find_inode = get_dir_entry(find_inode, filename, 0);
if(find_inode > -1){
int new_fd = allocate_fd(pid, find_inode);
printf("rd_open success\n");
return new_fd;
}
}
printf("rd_open failed\n");
return -1;
}
int rd_creat(char* pathname){
char *dir_path;
char *filename;
split_dir_file(pathname, &dir_path, &filename);
int dir_inode_num = get_dir_inode(dir_path, 1); //check if dir_path exists
if(dir_inode_num == -1){
return -1;
}
int tmp = get_dir_entry(dir_inode_num, filename, 1);
if(tmp != -1){
//directory already exists
printf("error: dir already exists\n");
return -1;
}
//get ready to allocate inode
int index = get_free_inode();
if(index == -1){
printf("no free inodes\n");
return -1;
}
s_block->free_inodes = s_block->free_inodes - 1;
init_inode(index, 2); //type = 2, regular file
inode_array[dir_inode_num].size = inode_array[dir_inode_num].size + sizeof(dir_entry);
dir_entry* new_dir = get_free_dir_entry(dir_inode_num);
new_dir->inode_number = index;
strcpy(new_dir->filename, filename);
printf("rd_creat created a file\n");
return 1;
}
int main(int sys_argc, char ** sys_argv)
{
int result;
char end_of_files = FALSE;
long parr;
char *fname;
int libpar = 0;
mpg123_pars *mp;
#if !defined(WIN32) && !defined(GENERIC)
struct timeval start_time;
#endif
aux_out = stdout; /* Need to initialize here because stdout is not a constant?! */
#if defined (WANT_WIN32_UNICODE)
if(win32_cmdline_utf8(&argc, &argv) != 0)
{
error("Cannot convert command line to UTF8!");
safe_exit(76);
}
#else
argv = sys_argv;
argc = sys_argc;
#endif
#if defined (WANT_WIN32_SOCKETS)
win32_net_init();
#endif
/* Extract binary and path, take stuff before/after last / or \ . */
if((prgName = strrchr(argv[0], '/')) || (prgName = strrchr(argv[0], '\\')))
{
/* There is some explicit path. */
prgName[0] = 0; /* End byte for path. */
prgName++;
binpath = argv[0];
}
else
{
prgName = argv[0]; /* No path separators there. */
binpath = NULL; /* No path at all. */
}
/* Need to initialize mpg123 lib here for default parameter values. */
result = mpg123_init();
if(result != MPG123_OK)
{
error1("Cannot initialize mpg123 library: %s", mpg123_plain_strerror(result));
safe_exit(77);
}
cleanup_mpg123 = TRUE;
mp = mpg123_new_pars(&result); /* This may get leaked on premature exit(), which is mainly a cosmetic issue... */
if(mp == NULL)
{
error1("Crap! Cannot get mpg123 parameters: %s", mpg123_plain_strerror(result));
safe_exit(78);
}
/* get default values */
mpg123_getpar(mp, MPG123_DOWN_SAMPLE, &parr, NULL);
param.down_sample = (int) parr;
mpg123_getpar(mp, MPG123_RVA, ¶m.rva, NULL);
mpg123_getpar(mp, MPG123_DOWNSPEED, ¶m.halfspeed, NULL);
mpg123_getpar(mp, MPG123_UPSPEED, ¶m.doublespeed, NULL);
mpg123_getpar(mp, MPG123_OUTSCALE, ¶m.outscale, NULL);
mpg123_getpar(mp, MPG123_FLAGS, &parr, NULL);
mpg123_getpar(mp, MPG123_INDEX_SIZE, ¶m.index_size, NULL);
param.flags = (int) parr;
param.flags |= MPG123_SEEKBUFFER; /* Default on, for HTTP streams. */
mpg123_getpar(mp, MPG123_RESYNC_LIMIT, ¶m.resync_limit, NULL);
mpg123_getpar(mp, MPG123_PREFRAMES, ¶m.preframes, NULL);
#ifdef OS2
_wildcard(&argc,&argv);
#endif
while ((result = getlopt(argc, argv, opts)))
switch (result) {
case GLO_UNKNOWN:
fprintf (stderr, "%s: Unknown option \"%s\".\n",
prgName, loptarg);
usage(1);
case GLO_NOARG:
fprintf (stderr, "%s: Missing argument for option \"%s\".\n",
prgName, loptarg);
usage(1);
}
/* Do this _after_ parameter parsing. */
check_locale(); /* Check/set locale; store if it uses UTF-8. */
if(param.list_cpu)
{
const char **all_dec = mpg123_decoders();
printf("Builtin decoders:");
while(*all_dec != NULL){ printf(" %s", *all_dec); ++all_dec; }
printf("\n");
mpg123_delete_pars(mp);
return 0;
}
if(param.test_cpu)
{
const char **all_dec = mpg123_supported_decoders();
printf("Supported decoders:");
while(*all_dec != NULL){ printf(" %s", *all_dec); ++all_dec; }
printf("\n");
mpg123_delete_pars(mp);
return 0;
}
if(param.gain != -1)
{
warning("The parameter -g is deprecated and may be removed in the future.");
}
if (loptind >= argc && !param.listname && !param.remote) usage(1);
/* Init audio as early as possible.
If there is the buffer process to be spawned, it shouldn't carry the mpg123_handle with it. */
bufferblock = mpg123_safe_buffer(); /* Can call that before mpg123_init(), it's stateless. */
if(init_output(&ao) < 0)
{
error("Failed to initialize output, goodbye.");
mpg123_delete_pars(mp);
return 99; /* It's safe here... nothing nasty happened yet. */
}
have_output = TRUE;
/* ========================================================================================================= */
/* Enterning the leaking zone... we start messing with stuff here that should be taken care of when leaving. */
/* Don't just exit() or return out... */
/* ========================================================================================================= */
httpdata_init(&htd);
#if !defined(WIN32) && !defined(GENERIC)
if (param.remote)
{
param.verbose = 0;
param.quiet = 1;
param.flags |= MPG123_QUIET;
}
#endif
/* Set the frame parameters from command line options */
if(param.quiet) param.flags |= MPG123_QUIET;
#ifdef OPT_3DNOW
if(dnow != 0) param.cpu = (dnow == SET_3DNOW) ? "3dnow" : "i586";
#endif
if(param.cpu != NULL && (!strcmp(param.cpu, "auto") || !strcmp(param.cpu, ""))) param.cpu = NULL;
if(!( MPG123_OK == (result = mpg123_par(mp, MPG123_VERBOSE, param.verbose, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_FLAGS, param.flags, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_DOWN_SAMPLE, param.down_sample, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_RVA, param.rva, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_FORCE_RATE, param.force_rate, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_DOWNSPEED, param.halfspeed, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_UPSPEED, param.doublespeed, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_ICY_INTERVAL, 0, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_RESYNC_LIMIT, param.resync_limit, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_TIMEOUT, param.timeout, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_OUTSCALE, param.outscale, 0))
&& ++libpar
&& MPG123_OK == (result = mpg123_par(mp, MPG123_PREFRAMES, param.preframes, 0))
))
{
error2("Cannot set library parameter %i: %s", libpar, mpg123_plain_strerror(result));
safe_exit(45);
}
if (!(param.listentry < 0) && !param.quiet) print_title(stderr); /* do not pollute stdout! */
{
long default_index;
mpg123_getpar(mp, MPG123_INDEX_SIZE, &default_index, NULL);
if( param.index_size != default_index && (result = mpg123_par(mp, MPG123_INDEX_SIZE, param.index_size, 0.)) != MPG123_OK )
error1("Setting of frame index size failed: %s", mpg123_plain_strerror(result));
}
if(param.force_rate && param.down_sample)
{
error("Down sampling and fixed rate options not allowed together!");
safe_exit(1);
}
/* Now actually get an mpg123_handle. */
mh = mpg123_parnew(mp, param.cpu, &result);
if(mh == NULL)
{
error1("Crap! Cannot get a mpg123 handle: %s", mpg123_plain_strerror(result));
safe_exit(77);
}
mpg123_delete_pars(mp); /* Don't need the parameters anymore ,they're in the handle now. */
/* Prepare stream dumping, possibly replacing mpg123 reader. */
if(dump_open(mh) != 0) safe_exit(78);
/* Now either check caps myself or query buffer for that. */
audio_capabilities(ao, mh);
load_equalizer(mh);
#ifdef HAVE_SETPRIORITY
if(param.aggressive) { /* tst */
int mypid = getpid();
setpriority(PRIO_PROCESS,mypid,-20);
}
#endif
#if defined (HAVE_SCHED_SETSCHEDULER) && !defined (__CYGWIN__) && !defined (HAVE_WINDOWS_H)
/* Cygwin --realtime seems to fail when accessing network, using win32 set priority instead */
/* MinGW may have pthread installed, we prefer win32API */
if (param.realtime) { /* Get real-time priority */
struct sched_param sp;
fprintf(stderr,"Getting real-time priority\n");
memset(&sp, 0, sizeof(struct sched_param));
sp.sched_priority = sched_get_priority_min(SCHED_FIFO);
if (sched_setscheduler(0, SCHED_RR, &sp) == -1)
fprintf(stderr,"Can't get real-time priority\n");
}
#endif
#ifdef HAVE_WINDOWS_H
/* argument "3" is equivalent to realtime priority class */
win32_set_priority( param.realtime ? 3 : param.w32_priority);
#endif
if(!param.remote) prepare_playlist(argc, argv);
#if !defined(WIN32) && !defined(GENERIC)
/* Remote mode is special... but normal console and terminal-controlled operation needs to catch the SIGINT.
For one it serves for track skip when not in terminal control mode.
The more important use being a graceful exit, including telling the buffer process what's going on. */
if(!param.remote) catchsignal (SIGINT, catch_interrupt);
#endif
if(param.remote) {
int ret;
ret = control_generic(mh);
safe_exit(ret);
}
#ifdef HAVE_TERMIOS
debug1("param.term_ctrl: %i", param.term_ctrl);
if(param.term_ctrl)
term_init();
#endif
if(APPFLAG(MPG123APP_CONTINUE)) frames_left = param.frame_number;
while ((fname = get_next_file()))
{
char *dirname, *filename;
int newdir;
/* skip_tracks includes the previous one. */
if(skip_tracks) --skip_tracks;
if(skip_tracks)
{
debug("Skipping this track.");
continue;
}
if(param.delay > 0)
{
/* One should enable terminal control during that sleeping phase! */
if(param.verbose > 2) fprintf(stderr, "Note: pausing %i seconds before next track.\n", param.delay);
output_pause(ao);
#ifdef WIN32
Sleep(param.delay*1000);
#else
sleep(param.delay);
#endif
output_unpause(ao);
}
if(!APPFLAG(MPG123APP_CONTINUE)) frames_left = param.frame_number;
debug1("Going to play %s", strcmp(fname, "-") ? fname : "standard input");
if(intflag || !open_track(fname))
{
#ifdef HAVE_TERMIOS
/* We need the opportunity to cancel in case of --loop -1 . */
if(param.term_ctrl) term_control(mh, ao);
#endif
/* No wait for a second interrupt before we started playing. */
if(intflag) break;
continue;
}
if(!param.quiet) fprintf(stderr, "\n");
if(param.index)
{
if(param.verbose) fprintf(stderr, "indexing...\r");
mpg123_scan(mh);
}
/*
Only trigger a seek if we do not want to start with the first frame.
Rationale: Because of libmpg123 sample accuracy, this could cause an unnecessary backwards seek, that even may fail on non-seekable streams.
For start frame of 0, we are already at the correct position!
*/
framenum = 0;
if(param.start_frame > 0)
framenum = mpg123_seek_frame(mh, param.start_frame, SEEK_SET);
if(APPFLAG(MPG123APP_CONTINUE)) param.start_frame = 0;
if(framenum < 0)
{
error1("Initial seek failed: %s", mpg123_strerror(mh));
if(mpg123_errcode(mh) == MPG123_BAD_OUTFORMAT)
{
fprintf(stderr, "%s", "So, you have trouble getting an output format... this is the matrix of currently possible formats:\n");
print_capabilities(ao, mh);
fprintf(stderr, "%s", "Somehow the input data and your choices don't allow one of these.\n");
}
mpg123_close(mh);
continue;
}
/* Prinout and xterm title need this, possibly independently. */
newdir = split_dir_file(fname ? fname : "standard input", &dirname, &filename);
if (!param.quiet)
{
if(newdir) fprintf(stderr, "Directory: %s\n", dirname);
#ifdef HAVE_TERMIOS
/* Reminder about terminal usage. */
if(param.term_ctrl) term_hint();
#endif
fprintf(stderr, "Playing MPEG stream %lu of %lu: %s ...\n", (unsigned long)pl.pos, (unsigned long)pl.fill, filename);
if(htd.icy_name.fill) fprintf(stderr, "ICY-NAME: %s\n", htd.icy_name.p);
if(htd.icy_url.fill) fprintf(stderr, "ICY-URL: %s\n", htd.icy_url.p);
}
#if !defined(GENERIC)
{
const char *term_type;
term_type = getenv("TERM");
if(term_type && param.xterm_title)
{
if(!strncmp(term_type,"xterm",5) || !strncmp(term_type,"rxvt",4))
fprintf(stderr, "\033]0;%s\007", filename);
else if(!strncmp(term_type,"screen",6))
fprintf(stderr, "\033k%s\033\\", filename);
else if(!strncmp(term_type,"iris-ansi",9))
fprintf(stderr, "\033P1.y %s\033\\\033P3.y%s\033\\", filename, filename);
fflush(stderr); /* Paranoia: will the buffer buffer the escapes? */
}
}
#endif
/* Rethink that SIGINT logic... */
#if !defined(WIN32) && !defined(GENERIC)
#ifdef HAVE_TERMIOS
if(!param.term_ctrl)
#endif
gettimeofday (&start_time, NULL);
#endif
while(!intflag)
{
int meta;
if(param.frame_number > -1)
{
debug1("frames left: %li", (long) frames_left);
if(!frames_left)
{
if(APPFLAG(MPG123APP_CONTINUE)) end_of_files = TRUE;
break;
}
}
if(!play_frame()) break;
if(!param.quiet)
{
meta = mpg123_meta_check(mh);
if(meta & (MPG123_NEW_ID3|MPG123_NEW_ICY))
{
if(meta & MPG123_NEW_ID3) print_id3_tag(mh, param.long_id3, stderr);
if(meta & MPG123_NEW_ICY) print_icy(mh, stderr);
mpg123_meta_free(mh); /* Do not waste memory after delivering. */
}
}
if(!fresh && param.verbose)
{
#ifndef NOXFERMEM
if (param.verbose > 1 || !(framenum & 0x7))
print_stat(mh,0,xfermem_get_usedspace(buffermem));
#else
if(param.verbose > 1 || !(framenum & 0x7)) print_stat(mh,0,0);
#endif
}
#ifdef HAVE_TERMIOS
if(!param.term_ctrl) continue;
else term_control(mh, ao);
#endif
}
if(!param.smooth && param.usebuffer) buffer_drain();
if(param.verbose) print_stat(mh,0,xfermem_get_usedspace(buffermem));
if(!param.quiet)
{
double secs;
long frank;
fprintf(stderr, "\n");
if(mpg123_getstate(mh, MPG123_FRANKENSTEIN, &frank, NULL) == MPG123_OK && frank)
fprintf(stderr, "This was a Frankenstein track.\n");
mpg123_position(mh, 0, 0, NULL, NULL, &secs, NULL);
fprintf(stderr,"[%d:%02d] Decoding of %s finished.\n", (int)(secs / 60), ((int)secs) % 60, filename);
}
else if(param.verbose) fprintf(stderr, "\n");
mpg123_close(mh);
if (intflag)
{
if(!skip_or_die(&start_time)) break;
intflag = FALSE;
#ifndef NOXFERMEM
if(!param.smooth && param.usebuffer) buffer_resync();
#endif
}
if(end_of_files) break;
} /* end of loop over input files */
/* Ensure we played everything. */
if(param.smooth && param.usebuffer)
{
buffer_drain();
buffer_resync();
}
if(APPFLAG(MPG123APP_CONTINUE))
{
continue_msg("CONTINUE");
}
/* Free up memory used by playlist */
if(!param.remote) free_playlist();
safe_exit(0); /* That closes output and restores terminal, too. */
return 0;
}
int rd_unlink(char* pathname) {
int pid = 5;
char* dir;
char* file;
char* file_type;
int parent_dir;
int file_inode;
int i, direct_count;
int rem_inode, bp_count;
pnode_fd_table* fd_unlink;
single_indirect* single_block;
double_indirect* double_block;
// (4) error if root
if (strcmp(pathname, "/") == 0) {
return -1;
}
split_dir_file(pathname, &dir, &file);
parent_dir = parent_dir_exists(dir);
// (1) error if pathname/file doesn't exist
if (parent_dir == -1) {
//vfree(dir);
//vfree(file);
return -1;
}
file_inode = get_dir_entry(parent_dir, file, 2);
if (file_inode == -1) {
// vfree(dir);
//vfree(file);
return -1;
}
// (2) error if dir is non-empty
file_type = inode_array[file_inode].type;
if ((file_type == 1) && (inode_array[file_inode].size != 0)) {
return -1;
}
// (3) error if trying to unlink open file
fd_unlink = find_fd_list(fd_table, pid);
if (fd_unlink->table[file_inode].inode_pointer == NULL) {
//vfree(dir);
//vfree(file);
return -1;
}
rem_inode = unlinker(parent_dir, file, inode_array[file_inode].type);
inode_array[parent_dir].size -= 16;
s_block->free_inodes += 1;
inode_array[rem_inode].id = rem_inode;
inode_array[rem_inode].allocated = 0;
inode_array[rem_inode].size = 0;
inode_array[rem_inode].type = 0;
bp_count = inode_array[rem_inode].bp_count;
if (bp_count > 8){
direct_count = 8;
}
else {direct_count = bp_count;}
for(i = 0; i < direct_count; i++) {
if (inode_array[rem_inode].block_pointer[i] == NULL){
break;
}
memset(inode_array[rem_inode].block_pointer[i], 0, RAMDISK_BLOCK_SIZE);
}
// single indirect
if (bp_count > 8) {
single_block = (single_indirect*) inode_array[file_inode].block_pointer[8];
for (i = 0; i < 64; i++) {
if (!single_block->block_pointer[i]) {
break;
}
memset(single_block->block_pointer[i], 0, RAMDISK_BLOCK_SIZE);
}
}
//double indirect
if (bp_count == 10) {
double_block = (double_indirect*) inode_array[file_inode].block_pointer[9];
for (i = 0; i < 64; i++) {
if (!double_block->indirect_block_pointer[i]) {
break;
}
for (i = 0; i < 64; i++) {
if (!single_block->block_pointer[i]) {
break;
}
memset(single_block->block_pointer[i], 0, RAMDISK_BLOCK_SIZE);
}
}
}
inode_array[rem_inode].bp_count = 0;
printf("rd_unlink %s is now unlinked\n", pathname);
return 0;
}