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//opt/curlssl/share/man/man3/curl_mprintf.3
.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2011, 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 .\" * are also available at http://curl.haxx.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" ************************************************************************** .TH curl_printf 3 "30 April 2004" "libcurl 7.12" "libcurl Manual" .SH NAME curl_maprintf, curl_mfprintf, curl_mprintf, curl_msnprintf, curl_msprintf curl_mvaprintf, curl_mvfprintf, curl_mvprintf, curl_mvsnprintf, curl_mvsprintf - formatted output conversion .SH SYNOPSIS .B #include <curl/mprintf.h> .sp .BI "int curl_mprintf(const char *" format ", ...);" .br .BI "int curl_mfprintf(FILE *" fd ", const char *" format ", ...);" .br .BI "int curl_msprintf(char *" buffer ", const char *" format ", ...);" .br .BI "int curl_msnprintf(char *" buffer ", size_t " maxlength ", const char *" format ", ...);" .br .BI "int curl_mvprintf(const char *" format ", va_list " args ");" .br .BI "int curl_mvfprintf(FILE *" fd ", const char *" format ", va_list " args ");" .br .BI "int curl_mvsprintf(char *" buffer ", const char *" format ", va_list " args ");" .br .BI "int curl_mvsnprintf(char *" buffer ", size_t " maxlength ", const char *" format ", va_list " args ");" .br .BI "char *curl_maprintf(const char *" format ", ...);" .br .BI "char *curl_mvaprintf(const char *" format ", va_list " args ");" .SH DESCRIPTION These are all functions that produce output according to a format string and given arguments. These are mostly clones of the well-known C-style functions and there will be no detailed explanation of all available formatting rules and usage here. See this table for notable exceptions. .RS .TP .B curl_mprintf() Normal printf() clone. .TP .B curl_mfprintf() Normal fprintf() clone. .TP .B curl_msprintf() Normal sprintf() clone. .TP .B curl_msnprintf() snprintf() clone. Many systems don't have this. It is just like \fBsprintf\fP but with an extra argument after the buffer that specifies the length of the target buffer. .TP .B curl_mvprintf() Normal vprintf() clone. .TP .B curl_mvfprintf() Normal vfprintf() clone. .TP .B curl_mvsprintf() Normal vsprintf() clone. .TP .B curl_mvsnprintf() vsnprintf() clone. Many systems don't have this. It is just like \fBvsprintf\fP but with an extra argument after the buffer that specifies the length of the target buffer. .TP .B curl_maprintf() Like printf() but returns the output string as a malloc()ed string. The returned string must be free()ed by the receiver. .TP .B curl_mvaprintf() Like curl_maprintf() but takes a va_list pointer argument instead of a variable amount of arguments. .RE To easily use all these cloned functions instead of the normal ones, #define _MPRINTF_REPLACE before you include the <curl/mprintf.h> file. Then all the normal names like printf, fprintf, sprintf etc will use the curl-functions instead. .SH AVAILABILITY These function will be removed from the public libcurl API in a near future. They will instead be made "available" by source code access only, and then as curlx_-prefixed functions. See lib/README.curlx for further details. .SH RETURN VALUE The \fBcurl_maprintf\fP and \fBcurl_mvaprintf\fP functions return a pointer to a newly allocated string, or NULL if it failed. All other functions return the number of characters they actually outputted. .SH "SEE ALSO" .BR printf "(3), " sprintf "(3), " fprintf "(3), " vprintf "(3) "
