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authorMichael Kaufmann <mail@michael-kaufmann.ch>2015-01-29 22:34:21 +0100
committerDaniel Stenberg <daniel@haxx.se>2015-01-29 22:34:21 +0100
commit04f246f8c7630877c19ebebf2e5dc2c6e63fe185 (patch)
treeb8ae76eb20fbe4cfd6f942e85d5ab44650760f81 /docs/libcurl
parent8ca3b05624981654e3a89d32084cf003bd8240a1 (diff)
CURLOPT_SEEKFUNCTION.3: also when server closes a connection
Diffstat (limited to 'docs/libcurl')
-rw-r--r--docs/libcurl/opts/CURLOPT_SEEKFUNCTION.313
1 files changed, 8 insertions, 5 deletions
diff --git a/docs/libcurl/opts/CURLOPT_SEEKFUNCTION.3 b/docs/libcurl/opts/CURLOPT_SEEKFUNCTION.3
index 8747a1784..bf7e3045e 100644
--- a/docs/libcurl/opts/CURLOPT_SEEKFUNCTION.3
+++ b/docs/libcurl/opts/CURLOPT_SEEKFUNCTION.3
@@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
-.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -43,10 +43,13 @@ shown above.
This function gets called by libcurl to seek to a certain position in the
input stream and can be used to fast forward a file in a resumed upload
(instead of reading all uploaded bytes with the normal read
-function/callback). It is also called to rewind a stream when doing a HTTP PUT
-or POST with a multi-pass authentication method. The function shall work like
-fseek(3) or lseek(3) and it gets SEEK_SET, SEEK_CUR or SEEK_END as argument
-for \fIorigin\fP, although libcurl currently only passes SEEK_SET.
+function/callback). It is also called to rewind a stream when data has already
+been sent to the server and needs to be sent again. This may happen when doing
+a HTTP PUT or POST with a multi-pass authentication method, or when an
+existing HTTP connection is reused too late and the server closes the
+connection. The function shall work like fseek(3) or lseek(3) and it gets
+SEEK_SET, SEEK_CUR or SEEK_END as argument for \fIorigin\fP, although libcurl
+currently only passes SEEK_SET.
\fIuserp\fP is the pointer you set with \fICURLOPT_SEEKDATA(3)\fP.