Drop win32-specific asprintf implementation (#1246)

asprintf is implemented by rrd_snprintf anyway, the win32-specific
implementation is redundant.

Same with the non-vasprintf conditional in rrd_info.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>

CHANGES

@@ -45,6 +45,10 @@ Features
 * Constify argv argument to library functions
   Without this users of library function that want to pass in const strings need to duplicate them to avoid compiler warnings
 
+* Avoid multiple implementations of asprintf
+  The locale-independent rrd_asprintf is equivalent to platform-provided snprintf when strings and integers are formatted.
+  There is no user of vasprintf-msvc that is locale-dependent, therefore this implementation can be replaced with rrd_vasprintf.
+
 RRDtool 1.8.0 - 2022-03-13
 ==========================
 

Makefile.am

@@ -26,7 +26,7 @@ EXTRA_DIST = COPYRIGHT CHANGES TODO CONTRIBUTORS THREADS VERSION LICENSE \
              win32/rrdcgi.rc win32/rrd_config.h \
              win32/rrd.sln win32/rrdtool.rc win32/rrdtool.vcxproj win32/rrdupdate.rc \
              win32/rrdcgi.vcxproj win32/rrdupdate.vcxproj win32/uac.manifest \
-             win32/asprintf.c win32/asprintf.h win32/dirent.h win32/vasprintf-msvc.c
+             win32/dirent.h
 
 CLEANFILES = config.cache
 

src/rrd_info.c

@@ -8,9 +8,7 @@
 #include "rrd_rpncalc.h"
 #include "rrd_client.h"
 #include <stdarg.h>
-#ifdef _MSC_VER
-#include "asprintf.h"   /* for vasprintf() here */
-#endif
+#include "rrd_snprintf.h"   /* for vasprintf() here */
 
 /* allocate memory for string */
 char     *sprintf_alloc(
@@ -19,25 +17,12 @@ char     *sprintf_alloc(
 {
     char     *str = NULL;
     va_list   argp;
-#ifdef HAVE_VASPRINTF
     va_start( argp, fmt );
     if (vasprintf( &str, fmt, argp ) == -1){
         va_end(argp);
         rrd_set_error ("vasprintf failed.");
         return(NULL);
     }
-#else
-    int       maxlen = 1024 + strlen(fmt);
-    str = (char*)malloc(sizeof(char) * (maxlen + 1));
-    if (str != NULL) {
-        va_start(argp, fmt);
-#ifdef HAVE_VSNPRINTF
-        vsnprintf(str, maxlen, fmt, argp);
-#else
-        vsprintf(str, fmt, argp);
-#endif
-    }
-#endif /* HAVE_VASPRINTF */
     va_end(argp);
     return str;
 }

src/rrd_list.c

@@ -5,7 +5,6 @@
 #ifdef _MSC_VER
 #include "win32-glob.h"    /* from https://sourceforge.net/projects/sox/ */
 #include "dirent.h"        /* from https://github.com/tronkko/dirent */
-#include "asprintf.h"      /* from http://asprintf.insanecoding.org */
 #else
 #if defined(__MINGW32__) && !defined(HAVE_GLOB_H)   /* MinGW has glob.h, MinGW-w64 not (yet?) */
 #include "win32/win32-glob.h"    /* from https://sourceforge.net/projects/sox/ */

src/rrd_snprintf.h

@@ -1,6 +1,8 @@
 #ifndef RRD_SNPRINTF_H
 #define RRD_SNPRINTF_H
 
+#include "rrd_config.h"
+
 #ifdef  __cplusplus
 extern    "C" {
 #endif
@@ -12,8 +14,14 @@ int rrd_vsnprintf(char *, size_t, const char *, va_list);
 int rrd_snprintf(char *, size_t, const char *, ...);
 
 int rrd_vasprintf(char **, const char *, va_list);
+#ifndef HAVE_VASPRINTF
+#define vasprintf rrd_vasprintf
+#endif
 
 int rrd_asprintf(char **, const char *, ...);
+#ifndef HAVE_ASPRINTF
+#define asprintf rrd_asprintf
+#endif
 
 #ifdef  __cplusplus
 }

win32/Makefile.msc

@@ -81,8 +81,6 @@ RRD_LIB_OBJ_LIST = \
         $(TOP)/src/rrd_utils.obj \
         $(TOP)/src/rrd_version.obj \
         $(TOP)/src/rrd_xport.obj \
-        $(TOP)/win32/asprintf.obj \
-        $(TOP)/win32/vasprintf-msvc.obj \
         $(TOP)/win32/win32-glob.obj
 # win32comp.obj is not added to RRD_LIB_OBJ_LIST, because definitions are already in rrd_thread_safe_nt.obj
 

win32/Makefile_vcpkg.msc

@@ -82,8 +82,6 @@ RRD_LIB_OBJ_LIST = \
         $(TOP)/src/rrd_utils.obj \
         $(TOP)/src/rrd_version.obj \
         $(TOP)/src/rrd_xport.obj \
-        $(TOP)/win32/asprintf.obj \
-        $(TOP)/win32/vasprintf-msvc.obj \
         $(TOP)/win32/win32-glob.obj
 # win32comp.obj is not added to RRD_LIB_OBJ_LIST, because definitions are already in rrd_thread_safe_nt.obj
 

win32/librrd-8.vcxproj

@@ -427,8 +427,6 @@
     <ClCompile Include="..\src\rrd_utils.c" />
     <ClCompile Include="..\src\rrd_version.c" />
     <ClCompile Include="..\src\rrd_xport.c" />
-    <ClCompile Include="asprintf.c" />
-    <ClCompile Include="vasprintf-msvc.c" />
     <ClCompile Include="win32-glob.c" />
   </ItemGroup>
   <ItemGroup>
@@ -468,4 +466,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

win32/rrd_config.h

@@ -52,9 +52,6 @@
 #  endif
 #endif
 
-/* Define to 1 if you have the `asprintf' function. */
-#define HAVE_ASPRINTF 1
-
 /* Define to 1 if you have the `chdir' function. */
 #define HAVE_CHDIR 1
 
@@ -103,9 +100,6 @@
 /* Define to 1 if you have the `uintptr_t' standard type. */
 #define HAVE_UINTPTR_T 1
 
-/* Define to 1 if you have the `vasprintf' function. */
-#define HAVE_VASPRINTF 1
-
 /* Define to 1 if you have the `va_copy' function or macro. */
 #define HAVE_VA_COPY 1