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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:41:07 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:41:07 +0000 |
commit | 3af6d22bb3850ab2bac67287e3a3d3b0e32868e5 (patch) | |
tree | 3ee7a3ec64525911fa865bb984c86d997d855527 /man2/send.2 | |
parent | Adding debian version 6.05.01-1. (diff) | |
download | manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.tar.xz manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.zip |
Merging upstream version 6.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man2/send.2')
-rw-r--r-- | man2/send.2 | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/man2/send.2 b/man2/send.2 index 16c58b5..79abcc7 100644 --- a/man2/send.2 +++ b/man2/send.2 @@ -9,7 +9,7 @@ .\" Modified Oct 2003 by aeb .\" Modified 2004-07-01 by mtk .\" -.TH send 2 2023-03-30 "Linux man-pages 6.05.01" +.TH send 2 2024-02-18 "Linux man-pages 6.7" .SH NAME send, sendto, sendmsg \- send a message on a socket .SH LIBRARY @@ -18,7 +18,7 @@ Standard C library .SH SYNOPSIS .nf .B #include <sys/socket.h> -.PP +.P .BI "ssize_t send(int " sockfd ", const void " buf [. len "], size_t " len \ ", int " flags ); .BI "ssize_t sendto(int " sockfd ", const void " buf [. len "], size_t " len \ @@ -34,7 +34,7 @@ The system calls and .BR sendmsg () are used to transmit a message to another socket. -.PP +.P The .BR send () call may be used only when the socket is in a @@ -53,25 +53,25 @@ argument, is equivalent to .BR write (2). Also, the following call -.PP +.P .in +4n .EX send(sockfd, buf, len, flags); .EE .in -.PP +.P is equivalent to -.PP +.P .in +4n .EX sendto(sockfd, buf, len, flags, NULL, 0); .EE .in -.PP +.P The argument .I sockfd is the file descriptor of the sending socket. -.PP +.P If .BR sendto () is used on a connection-mode @@ -99,7 +99,7 @@ the address of the target is given by with .I msg.msg_namelen specifying its size. -.PP +.P For .BR send () and @@ -115,16 +115,16 @@ the message is pointed to by the elements of the array The .BR sendmsg () call also allows sending ancillary data (also known as control information). -.PP +.P If the message is too long to pass atomically through the underlying protocol, the error .B EMSGSIZE is returned, and the message is not transmitted. -.PP +.P No indication of failure to deliver is implicit in a .BR send (). Locally detected errors are indicated by a return value of \-1. -.PP +.P When the message does not fit into the send buffer of the socket, .BR send () normally blocks, unless the socket has been placed in nonblocking I/O @@ -184,7 +184,7 @@ is a per-call option, whereas is a setting on the open file description (see .BR open (2)), which will affect all threads in the calling process -and as well as other processes that hold file descriptors +as well as other processes that hold file descriptors referring to the same open file description. .TP .BR MSG_EOR " (since Linux 2.2)" @@ -273,7 +273,7 @@ The definition of the structure employed by .BR sendmsg () is as follows: -.PP +.P .in +4n .EX struct msghdr { @@ -287,7 +287,7 @@ struct msghdr { }; .EE .in -.PP +.P The .I msg_name field is used on an unconnected socket to specify the target @@ -297,14 +297,14 @@ It points to a buffer containing the address; the field should be set to the size of the address. For a connected socket, these fields should be specified as NULL and 0, respectively. -.PP +.P The .I msg_iov and .I msg_iovlen fields specify scatter-gather locations, as for .BR writev (2). -.PP +.P You may send control information (ancillary data) using the .I msg_control and @@ -320,7 +320,7 @@ socket domains, see .BR unix (7) and .BR ip (7). -.PP +.P The .I msg_flags field is ignored. @@ -458,13 +458,13 @@ but glibc currently types both as .\" as (at least with GCC) is int. .SH STANDARDS POSIX.1-2008. -.PP +.P .B MSG_CONFIRM is a Linux extension. .SH HISTORY 4.4BSD, SVr4, POSIX.1-2001. (first appeared in 4.2BSD). -.PP +.P POSIX.1-2001 describes only the .B MSG_OOB and |