📄 list.c

📁 speech signal process tools
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		*stdp = 1;		if (wantug) {#ifdef NONAMES			st->st_uid = from_oct(8,  header->header.uid);			st->st_gid = from_oct(8,  header->header.gid);#else			st->st_uid = finduid(header->header.uname);			st->st_gid = findgid(header->header.gname);#endif		}		switch (header->header.linkflag) {		case LF_BLK: case LF_CHR:		    st->st_rdev = makedev(from_oct(8, header->header.devmajor),			 		  from_oct(8, header->header.devminor));		}	} else {		/* Old fashioned tar archive */		*stdp = 0;		st->st_uid = from_oct(8,  header->header.uid);		st->st_gid = from_oct(8,  header->header.gid);		st->st_rdev = 0;	}}/* * Quick and dirty octal conversion. * * Result is -1 if the field is invalid (all blank, or nonoctal). */longfrom_oct(digs, where)	register int	digs;	register char	*where;{	register long	value;	while (isspace(*where)) {		/* Skip spaces */		where++;		if (--digs <= 0)			return -1;		/* All blank field */	}	value = 0;	while (digs > 0 && isodigit(*where)) {	/* Scan til nonoctal */		value = (value << 3) | (*where++ - '0');		--digs;	}	if (digs > 0 && *where && !isspace(*where))		return -1;			/* Ended on non-space/nul */	return value;}/* * Actually print it. * * Plain and fancy file header block logging. * Non-verbose just prints the name, e.g. for "tar t" or "tar x". * This should just contain file names, so it can be fed back into tar * with xargs or the "-T" option.  The verbose option can give a bunch * of info, one line per file.  I doubt anybody tries to parse its * format, or if they do, they shouldn't.  Unix tar is pretty random here * anyway. * * Note that print_header uses the globals <head>, <hstat>, and * <head_standard>, which must be set up in advance.  This is not very clean * and should be cleaned up.  FIXME. */#define	UGSWIDTH	11		/* min width of User, group, size */#define	DATEWIDTH	19		/* Last mod date */static int	ugswidth = UGSWIDTH;	/* Max width encountered so far */voidprint_header(){	char modes[11];	char *timestamp;	char uform[11], gform[11];	/* These hold formatted ints */	char *user, *group;	char size[24];		/* Holds a formatted long or maj, min */	long longie;		/* To make ctime() call portable */	int	pad;	char *name;	extern long baserec;	if(f_sayblock)		fprintf(msg_file,"rec %10d: ",baserec + (ar_record - ar_block));	/* annofile(msg_file, (char *)NULL); */	if (f_verbose <= 1) {		/* Just the fax, mam. */		char *name;		name=quote_copy_string(head->header.name);		if(name==0)			name=head->header.name;		fprintf(msg_file, "%s\n", name);		if(name!=head->header.name)			free(name);	} else {		/* File type and modes */		modes[0] = '?';		switch (head->header.linkflag) {		case LF_VOLHDR:			modes[0]='V';			break;		case LF_MULTIVOL:			modes[0]='M';			break;		case LF_SPARSE:		case LF_NORMAL:		case LF_OLDNORMAL:		case LF_LINK:				modes[0] = '-'; 				if ('/' == head->header.name[strlen(head->header.name)-1])					modes[0] = 'd';				break;		case LF_DUMPDIR:modes[0] = 'd'; break;		case LF_DIR:	modes[0] = 'd'; break;		case LF_SYMLINK:modes[0] = 'l'; break;		case LF_BLK:	modes[0] = 'b'; break;		case LF_CHR:	modes[0] = 'c'; break;		case LF_FIFO:	modes[0] = 'p'; break;			case LF_CONTIG:	modes[0] = 'C'; break;		}		demode((unsigned)hstat.st_mode, modes+1);		/* Timestamp */		longie = hstat.st_mtime;		timestamp = ctime(&longie);		timestamp[16] = '\0';		timestamp[24] = '\0';		/* User and group names */		if (*head->header.uname && head_standard) {			user  = head->header.uname;		} else {			user = uform;			(void)sprintf(uform, "%d", (int)hstat.st_uid);		}		if (*head->header.gname && head_standard) {			group = head->header.gname;		} else {			group = gform;			(void)sprintf(gform, "%d", (int)hstat.st_gid);		}		/* Format the file size or major/minor device numbers */		switch (head->header.linkflag) {		case LF_CHR:		case LF_BLK:			(void)sprintf(size, "%d,%d",					major(hstat.st_rdev),					minor(hstat.st_rdev));			break;		case LF_SPARSE:			(void)sprintf(size, "%ld", 				from_oct(1+12, head->header.realsize));			break;		default:			(void)sprintf(size, "%ld", (long)hstat.st_size);		}		/* Figure out padding and print the whole line. */		pad = strlen(user) + strlen(group) + strlen(size) + 1;		if (pad > ugswidth) ugswidth = pad;		name = quote_copy_string(head->header.name);		if(!name)			name=head->header.name;		fprintf(msg_file, "%s %s/%s %*s%s %s %s %.*s",			modes,			user,			group,			ugswidth - pad,			"",			size,			timestamp+4, timestamp+20,			sizeof(head->header.name),			name);		if(name!=head->header.name)			free(name);		switch (head->header.linkflag) {		case LF_SYMLINK:			name=quote_copy_string(head->header.linkname);			if(!name)				name=head->header.linkname;			fprintf(msg_file, " -> %s\n", name);			if(name!=head->header.linkname)				free(name);			break;		case LF_LINK:			name=quote_copy_string(head->header.linkname);			if(!name)				name=head->header.linkname;			fprintf(msg_file, " link to %s\n", head->header.linkname);			if(name!=head->header.linkname)				free(name);			break;		default:			fprintf(msg_file, " unknown file type '%c'\n",				head->header.linkflag);			break;		case LF_OLDNORMAL:		case LF_NORMAL:		case LF_SPARSE:		case LF_CHR:		case LF_BLK:		case LF_DIR:		case LF_FIFO:		case LF_CONTIG:		case LF_DUMPDIR:			putc('\n', msg_file);			break;		case LF_VOLHDR:			fprintf(msg_file, "--Volume Header--\n");			break;					case LF_MULTIVOL:			fprintf(msg_file, "--Continued at byte %ld--\n",from_oct(1+12,head->header.offset));			break;		}	}	fflush(msg_file);}/* * Print a similar line when we make a directory automatically. */voidpr_mkdir(pathname, length, mode)	char *pathname;	int length;	int mode;{	char modes[11];	char *name;	extern long baserec;	if (f_verbose > 1) {		/* File type and modes */		modes[0] = 'd';		demode((unsigned)mode, modes+1);		if(f_sayblock)			fprintf(msg_file,"rec %10d: ",baserec + (ar_record - ar_block));		/* annofile(msg_file, (char *)NULL); */		name=quote_copy_string(pathname);		if(!name)			name=pathname;		fprintf(msg_file, "%s %*s %.*s\n",			modes,			ugswidth+DATEWIDTH,			"Creating directory:",			length,			pathname);		if(name!=pathname)			free(name);	}}/* * Skip over <size> bytes of data in records in the archive. */voidskip_file(size)	register long size;{	union record *x;	extern long save_totsize;	extern long save_sizeleft;	if(f_multivol) {		save_totsize=size;		save_sizeleft=size;	}	while (size > 0) {		x = findrec();		if (x == NULL) {	/* Check it... */			msg("Unexpected EOF on archive file");			exit(EX_BADARCH);		}		userec(x);		size -= RECORDSIZE;		if(f_multivol)			save_sizeleft-=RECORDSIZE;	}}voidskip_extended_headers(){	register union record *exhdr;	for (;;) {	    exhdr = findrec();	    if (!exhdr->ext_hdr.isextended) {	    	userec(exhdr);	    	break;	    }	}	userec(exhdr);}/* * Decode the mode string from a stat entry into a 9-char string and a null. */voiddemode(mode, string)	register unsigned mode;	register char *string;{	register unsigned mask;	register char *rwx = "rwxrwxrwx";	for (mask = 0400; mask != 0; mask >>= 1) {		if (mode & mask)			*string++ = *rwx++;		else {			*string++ = '-';			rwx++;		}	}	if (mode & S_ISUID)		if (string[-7] == 'x')			string[-7] = 's';		else			string[-7] = 'S';	if (mode & S_ISGID)		if (string[-4] == 'x')			string[-4] = 's';		else			string[-4] = 'S';	if (mode & S_ISVTX)		if (string[-1] == 'x')			string[-1] = 't';		else			string[-1] = 'T';	*string = '\0';}
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