Introduce Abc_GetTmpDir() to set the tmp directory via $TMPDIR

src/aig/gia/giaStoch.c

@@ -115,8 +115,8 @@ Vec_Int_t * Gia_StochProcessArray( Vec_Ptr_t * vGias, char * pScript, int TimeSe
 Gia_Man_t * Gia_StochProcessOne( Gia_Man_t * p, char * pScript, int Rand, int TimeSecs )
 {
     Gia_Man_t * pNew;
-    char FileName[100], Command[1000];
-    sprintf( FileName, "%06x.aig", Rand );
+    char FileName[1000], Command[2000];
+    sprintf( FileName, "%s/%06x.aig", Abc_GetTmpDir(), Rand );
     Gia_AigerWrite( p, FileName, 0, 0, 0 );
     sprintf( Command, "./abc -q \"&read %s; %s; &write %s\"", FileName, pScript, FileName );
 #if defined(__wasm)

src/base/abci/abcPart.c

@@ -1296,10 +1296,10 @@ Abc_Ntk_t * Abc_NtkStochProcessOne( Abc_Ntk_t * p, char * pScript0, int Rand, in
     extern int Abc_NtkWriteToFile( char * pFileName, Abc_Ntk_t * pNtk );
     extern Abc_Ntk_t * Abc_NtkReadFromFile( char * pFileName );
     Abc_Ntk_t * pNew, * pTemp;
-    char FileName[100], Command[1000], PreCommand[500] = {0};
+    char FileName[1000], Command[2000], PreCommand[500] = {0};
     char * pLibFileName = Abc_NtkIsMappedLogic(p) ? Mio_LibraryReadFileName((Mio_Library_t *)p->pManFunc) : NULL;
     if ( pLibFileName ) sprintf( PreCommand, "read_genlib %s; ", pLibFileName );
-    sprintf( FileName, "%06x.mm", Rand );
+    sprintf( FileName, "%s/%06x.mm", Abc_GetTmpDir(), Rand );
     Abc_NtkWriteToFile( FileName, p );    
     char * pScript = Abc_UtilStrsav( pScript0 );
     sprintf( Command, "./abc -q \"%sread_mm %s; %s; write_mm %s\"", PreCommand[0] ? PreCommand : "", FileName, pScript, FileName );    

src/base/sn/snCom.c

@@ -96,12 +96,9 @@ static int Sn_TempPrefix( char * pBuffer, size_t nBuffer, const char * pStem )
 {
     int Written;
 #if defined(_MSC_VER) || defined(__MINGW32__)
-    const char * pDirectory = getenv( "TEMP" );
-    if ( pDirectory == NULL )
-        pDirectory = ".";
-    Written = snprintf( pBuffer, nBuffer, "%s\\%s", pDirectory, pStem );
+    Written = snprintf( pBuffer, nBuffer, "%s\\%s", Abc_GetTmpDir(), pStem );
 #else
-    Written = snprintf( pBuffer, nBuffer, "/tmp/%s", pStem );
+    Written = snprintf( pBuffer, nBuffer, "%s/%s", Abc_GetTmpDir(), pStem );
 #endif
     return Written >= 0 && (size_t)Written < nBuffer;
 }

src/misc/util/abc_global.h

@@ -590,6 +590,25 @@ static inline void Abc_ReverseOrder( int * pA, int nA )
         ABC_SWAP( int, pA[i], pA[nA-1-i] );
 }
 
+static inline const char * Abc_GetTmpDir()
+{
+    const char * s;
+#if defined(_MSC_VER) || defined(__MINGW32__)
+    s = getenv( "TMP" );
+    if ( s && *s )
+        return s;
+    s = getenv( "TEMP" );
+    if ( s && *s )
+        return s;
+    return ".";
+#else
+    s = getenv( "TMPDIR" );
+    if ( s && *s )
+        return s;
+    return "/tmp";
+#endif
+}
+
 
 // sorting
 extern void   Abc_MergeSort( int * pInput, int nSize );

src/misc/util/utilAigSim.c

@@ -25,6 +25,7 @@
 #include <assert.h>
 #include <ctype.h>
 #include <time.h>
+#include "abc_global.h"
 #ifdef _WIN32
 #include <io.h>
 #define mkstemp(p) _mktemp_s(p, strlen(p)+1)
@@ -345,8 +346,11 @@ static int make_tmp_file(char *path, size_t cap, const char *prefix) {
     static int seq = 0; // no risk of collision since we're in a sandbox
     snprintf(path, cap, "%s%08d", prefix, seq++);
     int fd = open(path, O_CREAT | O_EXCL | O_RDWR, S_IREAD | S_IWRITE);
+#elif defined(_WIN32)
+    snprintf(path, cap, "%s\\%sXXXXXX", Abc_GetTmpDir(), prefix);
+    int fd = mkstemp(path);
 #else
-    snprintf(path, cap, "/tmp/%sXXXXXX", prefix);
+    snprintf(path, cap, "%s/%sXXXXXX", Abc_GetTmpDir(), prefix);
     int fd = mkstemp(path);
 #endif
     if (fd < 0) return 0;
@@ -360,8 +364,11 @@ static int make_tmp_path_noexist(char *path, size_t cap, const char *prefix) {
     static int seq = 0; // no risk of collision since we're in a sandbox
     snprintf(path, cap, "%s%08d", prefix, seq++);
     int fd = open(path, O_CREAT | O_EXCL | O_RDWR, S_IREAD | S_IWRITE);
+#elif defined(_WIN32)
+    snprintf(path, cap, "%s\\%sXXXXXX", Abc_GetTmpDir(), prefix);
+    int fd = mkstemp(path);
 #else
-    snprintf(path, cap, "/tmp/%sXXXXXX", prefix);
+    snprintf(path, cap, "%s/%sXXXXXX", Abc_GetTmpDir(), prefix);
     int fd = mkstemp(path);
 #endif
     if (fd < 0) return 0;