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-rw-r--r--erts/doc/src/erlang.xml12
-rw-r--r--erts/emulator/beam/atom.names1
-rw-r--r--erts/emulator/beam/erl_bif_port.c10
-rw-r--r--erts/emulator/beam/packet_parser.c5
-rw-r--r--erts/emulator/beam/packet_parser.h3
-rw-r--r--erts/emulator/drivers/common/inet_drv.c11
-rw-r--r--erts/preloaded/ebin/prim_inet.beambin72748 -> 72712 bytes
-rw-r--r--erts/preloaded/src/prim_inet.erl3
-rw-r--r--lib/kernel/doc/src/inet.xml5
-rw-r--r--lib/kernel/src/inet.erl4
-rw-r--r--lib/kernel/src/inet_int.hrl1
-rw-r--r--lib/kernel/test/bif_SUITE.erl10
-rw-r--r--lib/kernel/test/gen_tcp_api_SUITE.erl19
13 files changed, 71 insertions, 13 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 0492924164..70d000f763 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -874,10 +874,10 @@
</item>
<tag><c>line</c></tag>
<item>
- <p>A packet is a line terminated with newline. The
- newline character is included in the returned packet
- unless the line was truncated according to option
- <c>line_length</c>.</p>
+ <p>A packet is a line terminated by a delimiter byte,
+ default is the latin1 newline character. The delimiter
+ byte is included in the returned packet unless the line
+ was truncated according to option <c>line_length</c>.</p>
</item>
<tag><c>asn1 | cdr | sunrm | fcgi | tpkt</c></tag>
<item>
@@ -933,6 +933,10 @@
if <c>packet_size</c> itself is not set. This use is
only intended for backward compatibility.</p>
</item>
+ <tag><c>{line_delimiter, 0 =&lt; byte() =&lt; 255}</c></tag>
+ <item><p>For packet type <c>line</c>, sets the delimiting byte.
+ Default is the latin1 character <c>$\n</c>.</p>
+ </item>
</taglist>
<p>Examples:</p>
<pre>
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index f9a2f3e33e..190e7817dc 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -321,6 +321,7 @@ atom ldflags
atom Le='=<'
atom lf
atom line
+atom line_delimiter
atom line_length
atom linked_in_driver
atom links
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index 3ff54c7a60..e47d7bcbbb 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -1329,7 +1329,8 @@ BIF_RETTYPE decode_packet_3(BIF_ALIST_3)
ErlSubBin* rest;
Eterm res;
Eterm options;
- int code;
+ int code;
+ char delimiter = '\n';
if (!is_binary(BIF_ARG_2) ||
(!is_list(BIF_ARG_3) && !is_nil(BIF_ARG_3))) {
@@ -1370,6 +1371,11 @@ BIF_RETTYPE decode_packet_3(BIF_ALIST_3)
case am_line_length:
trunc_len = val;
goto next_option;
+ case am_line_delimiter:
+ if (type == TCP_PB_LINE_LF && val >= 0 && val <= 255) {
+ delimiter = (char)val;
+ goto next_option;
+ }
}
}
}
@@ -1390,7 +1396,7 @@ BIF_RETTYPE decode_packet_3(BIF_ALIST_3)
pca.aligned_ptr = bin_ptr;
}
packet_sz = packet_get_length(type, (char*)pca.aligned_ptr, pca.bin_sz,
- max_plen, trunc_len, &http_state);
+ max_plen, trunc_len, delimiter, &http_state);
if (!(packet_sz > 0 && packet_sz <= pca.bin_sz)) {
if (packet_sz < 0) {
goto error;
diff --git a/erts/emulator/beam/packet_parser.c b/erts/emulator/beam/packet_parser.c
index 2dd421a9e9..a737a86f14 100644
--- a/erts/emulator/beam/packet_parser.c
+++ b/erts/emulator/beam/packet_parser.c
@@ -256,6 +256,7 @@ int packet_get_length(enum PacketParseType htype,
const char* ptr, unsigned n, /* Bytes read so far */
unsigned max_plen, /* Max packet length, 0=no limit */
unsigned trunc_len, /* Truncate (lines) if longer, 0=no limit */
+ char delimiter, /* Line delimiting character */
int* statep) /* Protocol specific state */
{
unsigned hlen, plen;
@@ -299,9 +300,9 @@ int packet_get_length(enum PacketParseType htype,
goto remain;
case TCP_PB_LINE_LF: {
- /* TCP_PB_LINE_LF: [Data ... \n] */
+ /* TCP_PB_LINE_LF: [Data ... Delimiter] */
const char* ptr2;
- if ((ptr2 = memchr(ptr, '\n', n)) == NULL) {
+ if ((ptr2 = memchr(ptr, delimiter, n)) == NULL) {
if (n > max_plen && max_plen != 0) { /* packet full */
DEBUGF((" => packet full (no NL)=%d\r\n", n));
goto error;
diff --git a/erts/emulator/beam/packet_parser.h b/erts/emulator/beam/packet_parser.h
index ff158ff8b8..717d905fad 100644
--- a/erts/emulator/beam/packet_parser.h
+++ b/erts/emulator/beam/packet_parser.h
@@ -105,7 +105,8 @@ int packet_get_length(enum PacketParseType htype,
const char* ptr, unsigned n, /* Bytes read so far */
unsigned max_plen, /* Packet max length, 0=no limit */
unsigned trunc_len, /* Truncate (lines) if longer, 0=no limit */
- int* statep); /* Internal protocol state */
+ char delimiter, /* Line delimiting character */
+ int* statep); /* Internal protocol state */
ERTS_GLB_INLINE
void packet_get_body(enum PacketParseType htype,
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 89b71aa66a..a829599fe5 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -885,6 +885,7 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
#define INET_LOPT_MSGQ_LOWTRMRK 37 /* set local msgq low watermark */
#define INET_LOPT_NETNS 38 /* Network namespace pathname */
#define INET_LOPT_TCP_SHOW_ECONNRESET 39 /* tell user about incoming RST */
+#define INET_LOPT_LINE_DELIM 40 /* Line delimiting char */
/* SCTP options: a separate range, from 100: */
#define SCTP_OPT_RTOINFO 100
#define SCTP_OPT_ASSOCINFO 101
@@ -1154,6 +1155,7 @@ typedef struct {
#else
Uint32 send_oct[2]; /* number of octets sent, 64 bits */
#endif
+ char delimiter; /* Line delimiting character (def: '\n') */
unsigned long send_cnt; /* number of packets sent */
unsigned long send_max; /* maximum packet send */
double send_avg; /* average packet size sent */
@@ -6276,6 +6278,12 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len)
}
continue;
+ case INET_LOPT_LINE_DELIM:
+ DEBUGF(("inet_set_opts(%ld): s=%d, LINE_DELIM=%d\r\n",
+ (long)desc->port, desc->s, ival));
+ desc->delimiter = (char)ival;
+ continue;
+
case INET_OPT_REUSEADDR:
#ifdef __WIN32__
continue; /* Bjorn says */
@@ -8371,6 +8379,7 @@ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol)
desc->deliver = INET_DELIVER_TERM; /* standard term format */
desc->active = INET_PASSIVE; /* start passive */
desc->active_count = 0;
+ desc->delimiter = '\n'; /* line delimiting char */
desc->oph = NULL;
desc->opt = NULL;
@@ -9882,7 +9891,7 @@ static int tcp_remain(tcp_descriptor* desc, int* len)
tlen = packet_get_length(desc->inet.htype, ptr, n,
desc->inet.psize, desc->i_bufsz,
- &desc->http_state);
+ desc->inet.delimiter, &desc->http_state);
DEBUGF(("tcp_remain(%ld): s=%d, n=%d, nfill=%d nsz=%d, tlen %d\r\n",
(long)desc->inet.port, desc->inet.s, n, nfill, nsz, tlen));
diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam
index 5a188be3ba..8b87d1ae26 100644
--- a/erts/preloaded/ebin/prim_inet.beam
+++ b/erts/preloaded/ebin/prim_inet.beam
Binary files differ
diff --git a/erts/preloaded/src/prim_inet.erl b/erts/preloaded/src/prim_inet.erl
index 4d04e1dacb..d5c8fd4268 100644
--- a/erts/preloaded/src/prim_inet.erl
+++ b/erts/preloaded/src/prim_inet.erl
@@ -1147,6 +1147,7 @@ enc_opt(packet_size) -> ?INET_LOPT_PACKET_SIZE;
enc_opt(read_packets) -> ?INET_LOPT_READ_PACKETS;
enc_opt(netns) -> ?INET_LOPT_NETNS;
enc_opt(show_econnreset) -> ?INET_LOPT_TCP_SHOW_ECONNRESET;
+enc_opt(line_delimiter) -> ?INET_LOPT_LINE_DELIM;
enc_opt(raw) -> ?INET_OPT_RAW;
% Names of SCTP opts:
enc_opt(sctp_rtoinfo) -> ?SCTP_OPT_RTOINFO;
@@ -1205,6 +1206,7 @@ dec_opt(?INET_LOPT_PACKET_SIZE) -> packet_size;
dec_opt(?INET_LOPT_READ_PACKETS) -> read_packets;
dec_opt(?INET_LOPT_NETNS) -> netns;
dec_opt(?INET_LOPT_TCP_SHOW_ECONNRESET) -> show_econnreset;
+dec_opt(?INET_LOPT_LINE_DELIM) -> line_delimiter;
dec_opt(?INET_OPT_RAW) -> raw;
dec_opt(I) when is_integer(I) -> undefined.
@@ -1287,6 +1289,7 @@ type_opt_1(packet) ->
{httph_bin,?TCP_PB_HTTPH_BIN},
{ssl, ?TCP_PB_SSL_TLS}, % obsolete
{ssl_tls, ?TCP_PB_SSL_TLS}]};
+type_opt_1(line_delimiter) -> int;
type_opt_1(mode) ->
{enum,[{list, ?INET_MODE_LIST},
{binary, ?INET_MODE_BINARY}]};
diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml
index e5d7ce048a..e6d418dc58 100644
--- a/lib/kernel/doc/src/inet.xml
+++ b/lib/kernel/doc/src/inet.xml
@@ -981,6 +981,11 @@ setcap cap_sys_admin,cap_sys_ptrace,cap_dac_read_search+epi beam.smp
indicated length are accepted and not considered invalid due
to internal buffer limitations.</p>
</item>
+ <tag><c>{line_delimiter, Char}</c>(TCP/IP sockets)</tag>
+ <item>
+ <p>Sets the line delimiting character for line oriented protocols
+ (<c>line</c>). Default value is <c>$\n</c>.</p>
+ </item>
<tag><c>{priority, Priority}</c></tag>
<item> <p>Set the protocol-defined priority for all packets to be sent
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl
index da7f04089d..855c6377a3 100644
--- a/lib/kernel/src/inet.erl
+++ b/lib/kernel/src/inet.erl
@@ -671,7 +671,7 @@ stats() ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
connect_options() ->
[tos, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay,
- header, active, packet, packet_size, buffer, mode, deliver,
+ header, active, packet, packet_size, buffer, mode, deliver, line_delimiter,
exit_on_close, high_watermark, low_watermark, high_msgq_watermark,
low_msgq_watermark, send_timeout, send_timeout_close, delay_send, raw,
show_econnreset].
@@ -721,6 +721,8 @@ con_opt([Opt | Opts], #connect_opts{} = R, As) ->
{active,N} when is_integer(N), N < 32768, N >= -32768 ->
NOpts = lists:keydelete(active, 1, R#connect_opts.opts),
con_opt(Opts, R#connect_opts { opts = [{active,N}|NOpts] }, As);
+ {line_delimiter,C} when is_integer(C), C >= 0, C =< 255 ->
+ con_add(line_delimiter, C, R, Opts, As);
{Name,Val} when is_atom(Name) -> con_add(Name, Val, R, Opts, As);
_ -> {error, badarg}
end;
diff --git a/lib/kernel/src/inet_int.hrl b/lib/kernel/src/inet_int.hrl
index bfe4c9ec8c..e7c6cf8ae2 100644
--- a/lib/kernel/src/inet_int.hrl
+++ b/lib/kernel/src/inet_int.hrl
@@ -149,6 +149,7 @@
-define(INET_LOPT_MSGQ_LOWTRMRK, 37).
-define(INET_LOPT_NETNS, 38).
-define(INET_LOPT_TCP_SHOW_ECONNRESET, 39).
+-define(INET_LOPT_LINE_DELIM, 40).
% Specific SCTP options: separate range:
-define(SCTP_OPT_RTOINFO, 100).
-define(SCTP_OPT_ASSOCINFO, 101).
diff --git a/lib/kernel/test/bif_SUITE.erl b/lib/kernel/test/bif_SUITE.erl
index c3840f3d16..dd3010567a 100644
--- a/lib/kernel/test/bif_SUITE.erl
+++ b/lib/kernel/test/bif_SUITE.erl
@@ -33,6 +33,7 @@
spawn_failures/1,
run_fun/1,
+ decode_packet_delim/1,
wilderness/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
@@ -516,6 +517,15 @@ fetch_proc_vals(Pid) ->
{value,{heap_size,HS}} = lists:keysearch(heap_size, 1, PI),
?line {Ls, P, FA, HS}.
+decode_packet_delim(doc) ->
+ ["Test erlang:packet_delim/3 with {line_delimiter,0} option"];
+decode_packet_delim(suite) ->
+ [];
+decode_packet_delim(Config) when is_list(Config) ->
+ {ok,<<"abc",0>>,<<"efg",0>>} =
+ erlang:decode_packet(line, <<"abc",0,"efg",0>>, [{line_delimiter, 0}]),
+ {more, undefined} = erlang:decode_packet(line, <<"abc",0,"efg",0>>, []).
+
% This testcase should probably be moved somewhere else
wilderness(doc) ->
["Test that memory allocation command line options affecting the"
diff --git a/lib/kernel/test/gen_tcp_api_SUITE.erl b/lib/kernel/test/gen_tcp_api_SUITE.erl
index a051d504b2..962471c20c 100644
--- a/lib/kernel/test/gen_tcp_api_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_api_SUITE.erl
@@ -31,7 +31,7 @@
init_per_testcase/2, end_per_testcase/2,
t_connect_timeout/1, t_accept_timeout/1,
t_connect_bad/1,
- t_recv_timeout/1, t_recv_eof/1,
+ t_recv_timeout/1, t_recv_eof/1, t_recv_delim/1,
t_shutdown_write/1, t_shutdown_both/1, t_shutdown_error/1,
t_shutdown_async/1,
t_fdopen/1, t_fdconnect/1, t_implicit_inet6/1]).
@@ -48,7 +48,7 @@ all() ->
groups() ->
[{t_accept, [], [t_accept_timeout]},
{t_connect, [], [t_connect_timeout, t_connect_bad]},
- {t_recv, [], [t_recv_timeout, t_recv_eof]}].
+ {t_recv, [], [t_recv_timeout, t_recv_eof, t_recv_delim]}].
@@ -131,6 +131,21 @@ t_recv_eof(Config) when is_list(Config) ->
?line {error, closed} = gen_tcp:recv(Client, 0),
ok.
+t_recv_delim(doc) -> "Test using message delimiter $X";
+t_recv_delim(suite) -> [];
+t_recv_delim(Config) when is_list(Config) ->
+ {ok, L} = gen_tcp:listen(0, []),
+ {ok, Port} = inet:port(L),
+ Opts = [{active,false},{packet,line},{line_delimiter,$X}],
+ {ok, Client} = gen_tcp:connect(localhost, Port, Opts),
+ {ok, A} = gen_tcp:accept(L),
+ ok = gen_tcp:send(A, "abcXefgX"),
+ {ok, "abcX"} = gen_tcp:recv(Client, 0, 0),
+ {ok, "efgX"} = gen_tcp:recv(Client, 0, 0),
+ ok = gen_tcp:close(Client),
+ ok = gen_tcp:close(A),
+ ok.
+
%%% gen_tcp:shutdown/2
t_shutdown_write(Config) when is_list(Config) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 21:29:37 +0000