2002-07-04 Jeff Johnston <jjohnstn@redhat.com>

        * libc/stdio/Makefile.am: Add asprintf.c and vasprintf.c.
        * libc/stdio/Makefile.in: Regenerated.
        * libc/stdio/asprintf.c: New file.
        * libc/stdio/vasprintf.c: Ditto.
        * libc/stdio/fvwrite.c: Add code to dynamically reallocate
        the buffer for asprintf support.
        * libc/stdio/sprintf.c: Add asprintf documentation.
        * libc/stdio/vfprintf.c: Add vasprintf documentation.
        * libc/include/stdio.h: Add new prototypes.

1 files changed, 27 insertions, 17 deletions

diff --git a/newlib/libc/stdio/sprintf.c b/newlib/libc/stdio/sprintf.c
index b5376327e..6e6750145 100644
--- a/newlib/libc/stdio/sprintf.c
+++ b/newlib/libc/stdio/sprintf.c
@@ -18,12 +18,14 @@
 /*
 
 FUNCTION
-        <<printf>>, <<fprintf>>, <<sprintf>>, <<snprintf>>---format output
+        <<printf>>, <<fprintf>>, <<saprintf>>, <<sprintf>>, <<snprintf>>---format output
 INDEX
 	fprintf
 INDEX
 	printf
 INDEX
+	saprintf
+INDEX
 	sprintf
 INDEX
 	snprintf
@@ -34,6 +36,7 @@ ANSI_SYNOPSIS
         int printf(const char *<[format]> [, <[arg]>, ...]);
         int fprintf(FILE *<[fd]>, const char *<[format]> [, <[arg]>, ...]);
         int sprintf(char *<[str]>, const char *<[format]> [, <[arg]>, ...]);
+        int saprintf(char **<[strp]>, const char *<[format]> [, <[arg]>, ...]);
         int snprintf(char *<[str]>, size_t <[size]>, const char *<[format]> [, <[arg]>, ...]);
 
 TRAD_SYNOPSIS
@@ -46,6 +49,10 @@ TRAD_SYNOPSIS
 	FILE *<[fd]>;
 	char *<[format]>;
 
+	int saprintf(<[strp]>, <[format]> [, <[arg]>, ...]);
+	char **<[strp]>;
+	char *<[format]>;
+
 	int sprintf(<[str]>, <[format]> [, <[arg]>, ...]);
 	char *<[str]>;
 	char *<[format]>;
@@ -65,19 +72,22 @@ DESCRIPTION
         If there are more arguments than the format requires, excess
         arguments are ignored.
 
-        <<fprintf>>, <<sprintf>> and <<snprintf>> are identical to <<printf>>,
-        other than the destination of the formatted output: <<fprintf>> sends
-        the output to a specified file <[fd]>, while <<sprintf>> stores the
-        output in the specified char array <[str]> and <<snprintf>> limits
-        number of characters written to <[str]> to at most <[size]> (including
-        terminating <<0>>).  For <<sprintf>> and <<snprintf>>, the behavior is
-        also undefined if the output <<*<[str]>>> overlaps with one of the
-        arguments. <[format]> is a pointer to a charater string containing
-        two types of objects: ordinary characters (other than <<%>>), which
-        are copied unchanged to the output, and conversion
-        specifications, each of which is introduced by <<%>>.
-        (To include <<%>> in the output, use <<%%>> in the format string.)
-        A conversion specification has the following form:
+        <<fprintf>>, <<saprintf>>, <<sprintf>> and <<snprintf>> are identical 
+	to <<printf>>, other than the destination of the formatted output: 
+	<<fprintf>> sends the output to a specified file <[fd]>, while 
+	<<saprintf>> stores the output in a dynamically allocated buffer,
+	while <<sprintf>> stores the output in the specified char array 
+	<[str]> and <<snprintf>> limits number of characters written to 
+	<[str]> to at most <[size]> (including terminating <<0>>).  For 
+	<<sprintf>> and <<snprintf>>, the behavior is undefined if the 
+	output <<*<[str]>>> overlaps with one of the arguments. For
+	<<saprintf>>, <[strp]> points to a pointer to char which is filled
+	in with the dynamically allocated buffer.  <[format]> is a pointer 
+	to a charater string containing two types of objects: ordinary 
+	characters (other than <<%>>), which are copied unchanged to the 
+	output, and conversion specifications, each of which is introduced 
+	by <<%>>. (To include <<%>> in the output, use <<%%>> in the format 
+	string.) A conversion specification has the following form:
 
 .       %[<[flags]>][<[width]>][.<[prec]>][<[size]>][<[type]>]
 
@@ -272,11 +282,11 @@ O-
 
 
 RETURNS
-<<sprintf>> returns the number of bytes in the output string,
+<<sprintf>> and <<saprintf>> return the number of bytes in the output string,
 save that the concluding <<NULL>> is not counted.
 <<printf>> and <<fprintf>> return the number of characters transmitted.
-If an error occurs, <<printf>> and <<fprintf>> return <<EOF>>. No
-error returns occur for <<sprintf>>.
+If an error occurs, <<printf>> and <<fprintf>> return <<EOF>> and
+<<saprintf>> returns -1.  No error returns occur for <<sprintf>>.
 
 PORTABILITY
         The  ANSI C standard specifies that implementations must