for pod/perlfaq2.pod against latest snapshot for Alpaca

[perl5.git] / djgpp / djgpp.c

diff --git a/djgpp/djgpp.c b/djgpp/djgpp.c
index 5a8fc5f..d770cef 100644 (file)
--- a/djgpp/djgpp.c
+++ b/djgpp/djgpp.c
@@ -1,19 +1,5 @@
-#include <libc/stubs.h>
-#include <io.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <libc/file.h>
-#include <process.h>
-#include <fcntl.h>
-#include <glob.h>
-#include <sys/fsext.h>
-#include <crt0.h>
-#include "EXTERN.h"
-#include "perl.h"
-#include "XSUB.h"
+#define PERLIO_NOT_STDIO 0
+#include "djgpp.h"
 
 /* hold file pointer, command, mode, and the status of the command */
 struct pipe_list {
@@ -27,7 +13,7 @@ struct pipe_list {
 static struct pipe_list *pl = NULL;
 
 FILE *
-popen (const char *cm, const char *md) /* program name, pipe mode */
+djgpp_popen (const char *cm, const char *md) /* program name, pipe mode */
 {
   struct pipe_list *l1;
   int fd;
@@ -75,7 +61,7 @@ popen (const char *cm, const char *md) /* program name, pipe mode */
 }
 
 int
-pclose (FILE *pp)
+djgpp_pclose (FILE *pp)
 {
   struct pipe_list *l1, **l2;   /* list pointers */
   int retval=-1;               /* function return value */
@@ -120,19 +106,16 @@ static int
 convretcode (pTHX_ int rc,char *prog,int fl)
 {
     if (rc < 0 && ckWARN(WARN_EXEC))
-        Perl_warner(aTHX_ WARN_EXEC,"Can't %s \"%s\": %s",
+        Perl_warner(aTHX_ packWARN(WARN_EXEC),"Can't %s \"%s\": %s",
                    fl ? "exec" : "spawn",prog,Strerror (errno));
-    if (rc > 0)
+    if (rc >= 0)
         return rc << 8;
-    if (rc < 0)
-        return 255 << 8;
-    return 0;
+    return -1;
 }
 
 int
 do_aspawn (pTHX_ SV *really,SV **mark,SV **sp)
 {
-    dTHR;
     int  rc;
     char **a,*tmps,**argv; 
     STRLEN n_a;
@@ -369,6 +352,9 @@ XS(dos_GetCwd)
         ST(0)=sv_newmortal ();
         if (getcwd (tmp,PATH_MAX+1)!=NULL)
             sv_setpv ((SV*)ST(0),tmp);
+#ifndef INCOMPLETE_TAINTS
+       SvTAINTED_on(ST(0));
+#endif
     }
     XSRETURN (1);
 }
@@ -380,6 +366,24 @@ XS(dos_UseLFN)
     XSRETURN_IV (_USE_LFN);
 }
 
+XS(XS_Cwd_sys_cwd)
+{
+    dXSARGS;
+    if (items != 0)
+       Perl_croak_nocontext("Usage: Cwd::sys_cwd()");
+    {
+       char p[MAXPATHLEN];
+       char *  RETVAL;
+       RETVAL = getcwd(p, MAXPATHLEN);
+       ST(0) = sv_newmortal();
+       sv_setpv((SV*)ST(0), RETVAL);
+#ifndef INCOMPLETE_TAINTS
+       SvTAINTED_on(ST(0));
+#endif
+    }
+    XSRETURN(1);
+}
+
 void
 Perl_init_os_extras(pTHX)
 {
@@ -389,6 +393,7 @@ Perl_init_os_extras(pTHX)
     
     newXS ("Dos::GetCwd",dos_GetCwd,file);
     newXS ("Dos::UseLFN",dos_UseLFN,file);
+    newXS ("Cwd::sys_cwd",XS_Cwd_sys_cwd,file);
 
     /* install my File System Extension for globbing */
     __FSEXT_add_open_handler (glob_handler);
@@ -399,7 +404,8 @@ static char *perlprefix;
 
 #define PERL5 "/perl5"
 
-char *djgpp_pathexp (const char *p)
+char *
+djgpp_pathexp (const char *p)
 {
     static char expp[PATH_MAX];
     strcpy (expp,perlprefix);
@@ -435,3 +441,35 @@ Perl_DJGPP_init (int *argcp,char ***argvp)
         strcpy (perlprefix,"..");
 }
 
+int
+djgpp_fflush (FILE *fp)
+{
+    int res;
+
+    if ((res = fflush(fp)) == 0 && fp) {
+       Stat_t s;
+       if (Fstat(fileno(fp), &s) == 0 && !S_ISSOCK(s.st_mode))
+           res = fsync(fileno(fp));
+    }
+/*
+ * If the flush succeeded but set end-of-file, we need to clear
+ * the error because our caller may check ferror().  BTW, this
+ * probably means we just flushed an empty file.
+ */
+    if (res == 0 && fp && ferror(fp) == EOF) clearerr(fp);
+
+    return res;
+}
+
+int djgpp_get_stream_mode(FILE *f)
+{
+    extern char *__file_handle_modes;
+
+    int mode = __file_handle_modes[fileno(f)];
+    if (f->_flag & _IORW)
+        return mode | O_RDWR;
+    if (f->_flag & _IOWRT)
+        return mode | O_WRONLY;
+    return mode | O_RDONLY;
+}
+