1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 2 "http://www.w3.org/TR/html4/loose.dtd"> 3<html><head> 4<title>curl_printf man page</title> 5<meta name="generator" content="roffit"> 6<STYLE type="text/css"> 7P.level0 { 8 padding-left: 2em; 9} 10 11P.level1 { 12 padding-left: 4em; 13} 14 15P.level2 { 16 padding-left: 6em; 17} 18 19span.emphasis { 20 font-style: italic; 21} 22 23span.bold { 24 font-weight: bold; 25} 26 27span.manpage { 28 font-weight: bold; 29} 30 31h2.nroffsh { 32 background-color: #e0e0e0; 33} 34 35span.nroffip { 36 font-weight: bold; 37 font-size: 120%; 38 font-family: monospace; 39} 40 41p.roffit { 42 text-align: center; 43 font-size: 80%; 44} 45</STYLE> 46</head><body> 47 48<p class="level0"><a name="NAME"></a><h2 class="nroffsh">NAME</h2> 49<p class="level0">curl_maprintf, curl_mfprintf, curl_mprintf, curl_msnprintf, curl_msprintf curl_mvaprintf, curl_mvfprintf, curl_mvprintf, curl_mvsnprintf, curl_mvsprintf - formatted output conversion <a name="SYNOPSIS"></a><h2 class="nroffsh">SYNOPSIS</h2> 50<p class="level0"><span Class="bold">#include <curl/mprintf.h></span> 51<p class="level0"><span Class="bold">int curl_mprintf(const char * format , ...);</span> <br><span Class="bold">int curl_mfprintf(FILE * fd , const char * format , ...);</span> <br><span Class="bold">int curl_msprintf(char * buffer , const char * format , ...);</span> <br><span Class="bold">int curl_msnprintf(char * buffer , size_t maxlength , const char * format , ...);</span> <br><span Class="bold">int curl_mvprintf(const char * format , va_list args );</span> <br><span Class="bold">int curl_mvfprintf(FILE * fd , const char * format , va_list args );</span> <br><span Class="bold">int curl_mvsprintf(char * buffer , const char * format , va_list args );</span> <br><span Class="bold">int curl_mvsnprintf(char * buffer , size_t maxlength , const char * format , va_list args );</span> <br><span Class="bold">char *curl_maprintf(const char * format , ...);</span> <br><span Class="bold">char *curl_mvaprintf(const char * format , va_list args );</span> <a name="DESCRIPTION"></a><h2 class="nroffsh">DESCRIPTION</h2> 52<p class="level0">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. 53<p class="level0">See this table for notable exceptions. 54<p class="level1"> 55<p class="level1"><span Class="bold">curl_mprintf()</span> Normal printf() clone. 56<p class="level1"><span Class="bold">curl_mfprintf()</span> Normal fprintf() clone. 57<p class="level1"><span Class="bold">curl_msprintf()</span> Normal sprintf() clone. 58<p class="level1"><span Class="bold">curl_msnprintf()</span> snprintf() clone. Many systems don't have this. It is just like <span Class="bold">sprintf</span> but with an extra argument after the buffer that specifies the length of the target buffer. 59<p class="level1"><span Class="bold">curl_mvprintf()</span> Normal vprintf() clone. 60<p class="level1"><span Class="bold">curl_mvfprintf()</span> Normal vfprintf() clone. 61<p class="level1"><span Class="bold">curl_mvsprintf()</span> Normal vsprintf() clone. 62<p class="level1"><span Class="bold">curl_mvsnprintf()</span> vsnprintf() clone. Many systems don't have this. It is just like <span Class="bold">vsprintf</span> but with an extra argument after the buffer that specifies the length of the target buffer. 63<p class="level1"><span Class="bold">curl_maprintf()</span> Like printf() but returns the output string as a malloc()ed string. The returned string must be free()ed by the receiver. 64<p class="level1"><span Class="bold">curl_mvaprintf()</span> Like curl_maprintf() but takes a va_list pointer argument instead of a variable amount of arguments. 65<p class="level0"> 66<p class="level0">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. <a name="AVAILABILITY"></a><h2 class="nroffsh">AVAILABILITY</h2> 67<p class="level0">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. <a name="RETURN"></a><h2 class="nroffsh">RETURN VALUE</h2> 68<p class="level0">The <span Class="bold">curl_maprintf</span> and <span Class="bold">curl_mvaprintf</span> functions return a pointer to a newly allocated string, or NULL if it failed. 69<p class="level0">All other functions return the number of characters they actually outputted. <a name="SEE"></a><h2 class="nroffsh">SEE ALSO</h2> 70<p class="level0"><span Class="manpage">printf (3)</span> <span Class="manpage"> sprintf (3)</span> <span Class="manpage"> fprintf (3)</span> <span Class="manpage"> vprintf (3) </span> <p class="roffit"> 71 This HTML page was made with <a href="http://daniel.haxx.se/projects/roffit/">roffit</a>. 72</body></html> 73