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curl_printf(3)                                 libcurl Manual                                 curl_printf(3)



NAME
       curl_maprintf,  curl_mfprintf,  curl_mprintf, curl_msnprintf, curl_msprintf curl_mvaprintf, curl_mvf-printf, curl_mvfprintf,
       printf, curl_mvprintf, curl_mvsnprintf, curl_mvsprintf - formatted output conversion

SYNOPSIS
       #include <curl/mprintf.h>

       int curl_mprintf(const char *format, ...);
       int curl_mfprintf(FILE *fd, const char *format, ...);
       int curl_msprintf(char *buffer, const char *format, ...);
       int curl_msnprintf(char *buffer, size_t maxlength, const char *format, ...);
       int curl_mvprintf(const char *format, va_list args);
       int curl_mvfprintf(FILE *fd, const char *format, va_list args);
       int curl_mvsprintf(char *buffer, const char *format, va_list args);
       int curl_mvsnprintf(char *buffer, size_t maxlength, const char *format, va_list args);
       char *curl_maprintf(const char *format, ...);
       char *curl_mvaprintf(const char *format, va_list args);

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.

              curl_mprintf()
                     Normal printf() clone.

              curl_mfprintf()
                     Normal fprintf() clone.

              curl_msprintf()
                     Normal sprintf() clone.

              curl_msnprintf()
                     snprintf() clone. Many systems don't have this. It is just like  sprintf  but  with  an
                     extra argument after the buffer that specifies the length of the target buffer.

              curl_mvprintf()
                     Normal vprintf() clone.

              curl_mvfprintf()
                     Normal vfprintf() clone.

              curl_mvsprintf()
                     Normal vsprintf() clone.

              curl_mvsnprintf()
                     vsnprintf()  clone.  Many systems don't have this. It is just like vsprintf but with an
                     extra argument after the buffer that specifies the length of the target buffer.

              curl_maprintf()
                     Like printf() but returns the output string as a malloc()ed string. The returned string
                     must be free()ed by the receiver.

              curl_mvaprintf()
                     Like  curl_maprintf() but takes a va_list pointer argument instead of a variable amount
                     of arguments.

       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.

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.

RETURN VALUE
       The curl_maprintf and curl_mvaprintf 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.

SEE ALSO
       printf(3), sprintf(3), fprintf(3), vprintf(3)



libcurl 7.12                                    30 April 2004                                 curl_printf(3)