/* file.h
* Definitions for file structures and routines
*
- * $Id: file.h,v 1.49 1999/10/11 06:39:03 guy Exp $
+ * $Id: file.h,v 1.70 2000/07/03 08:35:41 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
#endif
#ifndef __COLORS_H__
-#include "colors.h"
+#include "gtk/colors.h" /* XXX */
+#endif
+
+#ifndef __PRINT_H__
+#include "print.h"
#endif
#include <errno.h>
#ifdef HAVE_LIBZ
#include "zlib.h"
-
#define FILE_T gzFile
#define file_open gzopen
#define filed_open gzdopen
-#define file_seek gzseek
-#define file_read(buf, bsize, count, file) gzread((file),(buf),((count)*(bsize)))
-#define file_write(buf, bsize, count, file) gzwrite((file),(buf),((count)*(bsize)))
#define file_close gzclose
-static inline int file_error(void *fh) {
- int errnum;
- gzerror(fh, &errnum);
- if (errnum<0) return errnum;
- return 0;
-}
-
#else /* No zLib */
#define FILE_T FILE *
#define file_open fopen
#define filed_open fdopen
-#define file_seek fseek
-#define file_read fread
-#define file_write fwrite
#define file_close fclose
-#define file_error ferror
#endif /* HAVE_LIBZ */
typedef struct bpf_program bpf_prog;
+/* Current state of file. */
+typedef enum {
+ FILE_CLOSED, /* No file open */
+ FILE_READ_IN_PROGRESS, /* Reading a file we've opened */
+ FILE_READ_ABORTED, /* Read aborted by user */
+ FILE_READ_DONE /* Read completed */
+} file_state;
+
typedef struct _capture_file {
- FILE_T fh; /* Capture file */
- int filed; /* Filedes of capture file */
- gchar *filename; /* filename */
- long f_len; /* File length */
- guint16 cd_t; /* Capture data type */
- const gchar *cd_t_desc; /* Description of that data type */
+ file_state state; /* Current state of capture file */
+ int filed; /* File descriptor of capture file */
+ gchar *filename; /* Name of capture file */
+ gboolean is_tempfile; /* Is capture file a temporary file? */
+ gboolean user_saved;/* If capture file is temporary, has it been saved by user yet? */
+ long f_len; /* Length of capture file */
+ guint16 cd_t; /* File type of capture file */
+ int lnk_t; /* Link-layer type with which to save capture */
guint32 vers; /* Version. For tcpdump minor is appended to major */
guint32 count; /* Packet count */
- gfloat unfiltered_count; /* used for dfilter progress bar */
guint32 drops; /* Dropped packets */
guint32 esec; /* Elapsed seconds */
guint32 eusec; /* Elapsed microseconds */
guint32 snap; /* Captured packet length */
- gboolean update_progbar; /* TRUE if we should update the progress bar */
long progbar_quantum; /* Number of bytes read per progress bar update */
long progbar_nextstep; /* Next point at which to update progress bar */
gchar *iface; /* Interface */
gchar *save_file; /* File that user saved capture to */
int save_file_fd; /* File descriptor for saved file */
- gint user_saved;/* Was capture file saved by user yet? */
wtap *wth; /* Wiretap session */
dfilter *rfcode; /* Compiled read filter program */
gchar *dfilter; /* Display filter string */
gchar *cfilter; /* Capture filter string */
bpf_prog fcode; /* Compiled capture filter program */
#endif
+ gchar *sfilter; /* Search filter string */
+ gboolean sbackward; /* TRUE if search is backward, FALSE if forward */
+ union wtap_pseudo_header pseudo_header; /* Packet pseudo_header */
guint8 pd[WTAP_MAX_PACKET_SIZE]; /* Packet data */
+ GMemChunk *plist_chunk; /* Memory chunk for frame_data structures */
frame_data *plist; /* Packet list */
frame_data *plist_end; /* Last packet in list */
+ frame_data *first_displayed; /* First frame displayed */
+ frame_data *last_displayed; /* Last frame displayed */
column_info cinfo; /* Column formatting information */
- int selected_packet; /* Index in packet list of currently selected packet, if any */
- int selected_row; /* Row in packet display of currently selected packet, if any */
- frame_data *fd; /* Frame data for currently selected packet */
+ frame_data *current_frame; /* Frame data for current frame */
proto_tree *protocol_tree; /* Protocol tree for currently selected packet */
FILE *print_fh; /* File we're printing to */
} capture_file;
-int open_cap_file(char *, capture_file *);
-void close_cap_file(capture_file *, void *, guint);
-int read_cap_file(capture_file *);
-int tail_cap_file(char *, capture_file *);
+/* Return values from "read_cap_file()", "continue_tail_cap_file()",
+ and "finish_tail_cap_file()". */
+typedef enum {
+ READ_SUCCESS, /* read succeeded */
+ READ_ERROR, /* read got an error */
+ READ_ABORTED /* read aborted by user */
+} read_status_t;
+
+int open_cap_file(char *, gboolean, capture_file *);
+void close_cap_file(capture_file *, void *);
+read_status_t read_cap_file(capture_file *, int *);
+int start_tail_cap_file(char *, gboolean, capture_file *);
+read_status_t continue_tail_cap_file(capture_file *, int, int *);
+read_status_t finish_tail_cap_file(capture_file *, int *);
/* size_t read_frame_header(capture_file *); */
+int save_cap_file(char *, capture_file *, gboolean, guint);
-void filter_packets(capture_file *cf, gchar *dfilter);
+int filter_packets(capture_file *cf, gchar *dfilter);
void colorize_packets(capture_file *);
int print_packets(capture_file *cf, print_args_t *print_args);
void change_time_formats(capture_file *);
+gboolean find_packet(capture_file *cf, dfilter *sfcode);
+
+typedef enum {
+ FOUND_FRAME, /* found the frame */
+ NO_SUCH_FRAME, /* no frame with that number */
+ FRAME_NOT_DISPLAYED /* frame with that number isn't displayed */
+} goto_result_t;
+goto_result_t goto_frame(capture_file *cf, guint fnumber);
+
void select_packet(capture_file *, int);
void unselect_packet(capture_file *);