diff options
Diffstat (limited to 'pcap_dump_open.3pcap.in')
| -rw-r--r-- | pcap_dump_open.3pcap.in | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/pcap_dump_open.3pcap.in b/pcap_dump_open.3pcap.in index 47ea321..b86696f 100644 --- a/pcap_dump_open.3pcap.in +++ b/pcap_dump_open.3pcap.in @@ -17,7 +17,7 @@ .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. .\" -.TH PCAP_DUMP_OPEN 3PCAP "5 April 2008" +.TH PCAP_DUMP_OPEN 3PCAP "22 August 2018" .SH NAME pcap_dump_open, pcap_dump_fopen \- open a file to which to write packets .SH SYNOPSIS @@ -29,6 +29,7 @@ pcap_dump_open, pcap_dump_fopen \- open a file to which to write packets .LP .ft B pcap_dumper_t *pcap_dump_open(pcap_t *p, const char *fname); +pcap_dumper_t *pcap_dump_open_append(pcap_t *p, const char *fname); pcap_dumper_t *pcap_dump_fopen(pcap_t *p, FILE *fp); .ft .fi @@ -47,39 +48,56 @@ for .PP .B pcap_dump_fopen() is called to write data to an existing open stream -.IR fp . +.IR fp ; +this stream will be closed by a subsequent call to +.BR pcap_dump_close(3PCAP) . Note that on Windows, that stream should be opened in binary mode. .PP .I p is a capture or ``savefile'' handle returned by an earlier call to -.B pcap_create() +.B pcap_create(3PCAP) and activated by an earlier call to -.BR pcap_activate() , +.BR \%pcap_activate(3PCAP) , or returned by an earlier call to -.BR pcap_open_offline() , -.BR pcap_open_live() , +.BR \%pcap_open_offline(3PCAP) , +.BR pcap_open_live(3PCAP) , or -.BR pcap_open_dead() . -The link-layer type and snapshot length from +.BR pcap_open_dead(3PCAP) . +The time stamp precision, link-layer type, and snapshot length from .I p are used as the link-layer type and snapshot length of the output file. +.PP +.B pcap_dump_open_append() +is like +.B pcap_dump_open() +but does not create the file if it does not exist and, if it does +already exist, and is a pcap file with the same byte order as the host +opening the file, and has the same time stamp precision, link-layer +header type, and snapshot length as +.IR p , +it will write new packets at the end of the file. .SH RETURN VALUES A pointer to a .B pcap_dumper_t structure to use in subsequent -.B pcap_dump() +.B pcap_dump(3PCAP) and -.B pcap_dump_close() +.B pcap_dump_close(3PCAP) calls is returned on success. .B NULL is returned on failure. If .B NULL is returned, -.B pcap_geterr(\fIp\fB) +.B pcap_geterr(3PCAP) can be used to get the error text. +.SH BACKWARD COMPATIBILITY +.PP +The +.B pcap_dump_open_append() +function became available in libpcap release 1.7.2. In previous +releases, there is no support for appending packets to an existing +savefile. .SH SEE ALSO -pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP), -pcap_open_offline(3PCAP), pcap_open_live(3PCAP), pcap_open_dead(3PCAP), -pcap_dump(3PCAP), pcap_dump_close(3PCAP), pcap_geterr(3PCAP), -pcap-savefile(@MAN_FILE_FORMATS@) +pcap(3PCAP), +\%pcap-savefile(@MAN_FILE_FORMATS@) |