89 строки
2.9 KiB
Groff
89 строки
2.9 KiB
Groff
|
.\" You can view this file with:
|
||
|
|
.\" nroff -man [file]
|
||
|
|
.\" Written by daniel@haxx.se
|
||
|
|
.\"
|
||
|
|
.TH curl_printf 3 "20 April 2001" "libcurl 7.7.2" "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 produces 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 fprinf() 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 RETURN VALUE
|
||
|
|
The \fBcurl_maprintf\fP and \fBcurl_mvaprintf\fP functions return a pointer to
|
||
|
|
a newly allocated string, or NULL it it failed.
|
||
|
|
|
||
|
|
All other functions return the number of character they actually outputed.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR printf "(3), " sprintf "(3), " fprintf "(3), " vprintf "(3) "
|