perl 3.0 patch #32 patch #29, continued

See patch #29.

1 files changed, 273 insertions, 0 deletions

diff --git a/os2/os2.c b/os2/os2.c
new file mode 100644
index 0000000000..279a88f88b
--- /dev/null
+++ b/os2/os2.c
@@ -0,0 +1,273 @@
+/* $Header: os2.c,v 3.0.1.1 90/10/15 17:49:55 lwall Locked $
+ *
+ *    (C) Copyright 1989, 1990 Diomidis Spinellis.
+ *
+ *    You may distribute under the terms of the GNU General Public License
+ *    as specified in the README file that comes with the perl 3.0 kit.
+ *
+ * $Log:	os2.c,v $
+ * Revision 3.0.1.1  90/10/15  17:49:55  lwall
+ * patch29: Initial revision
+ * 
+ * Revision 3.0.1.1  90/03/27  16:10:41  lwall
+ * patch16: MSDOS support
+ *
+ * Revision 1.1  90/03/18  20:32:01  dds
+ * Initial revision
+ *
+ */
+
+#define INCL_DOS
+#define INCL_NOPM
+#include <os2.h>
+
+/*
+ * Various Unix compatibility functions for OS/2
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <process.h>
+
+#include "EXTERN.h"
+#include "perl.h"
+
+
+/* dummies */
+
+int ioctl(int handle, unsigned int function, char *data)
+{ return -1; }
+
+int userinit()
+{ return -1; }
+
+int syscall()
+{ return -1; }
+
+
+/* extendd chdir() */
+
+int chdir(char *path)
+{
+  if ( path[0] != 0 && path[1] == ':' )
+    DosSelectDisk(tolower(path[0]) - '@');
+
+  DosChDir(path, 0L);
+}
+
+
+/* priorities */
+
+int setpriority(int class, int pid, int val)
+{
+  int flag = 0;
+
+  if ( pid < 0 )
+  {
+    flag++;
+    pid = -pid;
+  }
+
+  return DosSetPrty(flag ? PRTYS_PROCESSTREE : PRTYS_PROCESS, class, val, pid);
+}
+
+int getpriority(int which /* ignored */, int pid)
+{
+  USHORT val;
+
+  if ( DosGetPrty(PRTYS_PROCESS, &val, pid) )
+    return -1;
+  else
+    return val;
+}
+
+
+/* get parent process id */
+
+int getppid(void)
+{
+  PIDINFO pi;
+
+  DosGetPID(&pi);
+  return pi.pidParent;
+}
+
+
+/* kill */
+
+int kill(int pid, int sig)
+{
+  int flag = 0;
+
+  if ( pid < 0 )
+  {
+    flag++;
+    pid = -pid;
+  }
+
+  switch ( sig & 3 )
+  {
+
+  case 0:
+    DosKillProcess(flag ? DKP_PROCESSTREE : DKP_PROCESS, pid);
+    break;
+
+  case 1: /* FLAG A */
+    DosFlagProcess(pid, flag ? FLGP_SUBTREE : FLGP_PID, PFLG_A, 0);
+    break;
+
+  case 2: /* FLAG B */
+    DosFlagProcess(pid, flag ? FLGP_SUBTREE : FLGP_PID, PFLG_B, 0);
+    break;
+
+  case 3: /* FLAG C */
+    DosFlagProcess(pid, flag ? FLGP_SUBTREE : FLGP_PID, PFLG_C, 0);
+    break;
+
+  }
+}
+
+
+/* Sleep function. */
+void
+sleep(unsigned len)
+{
+   DosSleep(len * 1000L);
+}
+
+/* Just pretend that everyone is a superuser */
+
+int setuid()
+{ return 0; }
+
+int setgid()
+{ return 0; }
+
+int getuid(void)
+{ return 0; }
+
+int geteuid(void)
+{ return 0; }
+
+int getgid(void)
+{ return 0; }
+
+int getegid(void)
+{ return 0; }
+
+/*
+ * The following code is based on the do_exec and do_aexec functions
+ * in file doio.c
+ */
+int
+do_aspawn(really,arglast)
+STR *really;
+int *arglast;
+{
+    register STR **st = stack->ary_array;
+    register int sp = arglast[1];
+    register int items = arglast[2] - sp;
+    register char **a;
+    char **argv;
+    char *tmps;
+    int status;
+
+    if (items) {
+	New(1101,argv, items+1, char*);
+	a = argv;
+	for (st += ++sp; items > 0; items--,st++) {
+	    if (*st)
+		*a++ = str_get(*st);
+	    else
+		*a++ = "";
+	}
+	*a = Nullch;
+	if (really && *(tmps = str_get(really)))
+	    status = spawnvp(P_WAIT,tmps,argv);
+	else
+	    status = spawnvp(P_WAIT,argv[0],argv);
+	Safefree(argv);
+    }
+    return status;
+}
+
+char *getenv(char *name);
+
+int
+do_spawn(cmd)
+char *cmd;
+{
+    register char **a;
+    register char *s;
+    char **argv;
+    char flags[10];
+    int status;
+    char *shell, *cmd2;
+
+    /* save an extra exec if possible */
+    if ((shell = getenv("COMSPEC")) == 0)
+	shell = "C:\\OS2\\CMD.EXE";
+
+    /* see if there are shell metacharacters in it */
+    if (strchr(cmd, '>') || strchr(cmd, '<') || strchr(cmd, '|')
+        || strchr(cmd, '&') || strchr(cmd, '^'))
+	  doshell:
+	    return spawnl(P_WAIT,shell,shell,"/C",cmd,(char*)0);
+
+    New(1102,argv, strlen(cmd) / 2 + 2, char*);
+
+    New(1103,cmd2, strlen(cmd) + 1, char);
+    strcpy(cmd2, cmd);
+    a = argv;
+    for (s = cmd2; *s;) {
+	while (*s && isspace(*s)) s++;
+	if (*s)
+	    *(a++) = s;
+	while (*s && !isspace(*s)) s++;
+	if (*s)
+	    *s++ = '\0';
+    }
+    *a = Nullch;
+    if (argv[0])
+	if ((status = spawnvp(P_WAIT,argv[0],argv)) == -1) {
+	    Safefree(argv);
+	    Safefree(cmd2);
+	    goto doshell;
+	}
+    Safefree(cmd2);
+    Safefree(argv);
+    return status;
+}
+
+usage(char *myname)
+{
+#ifdef MSDOS
+  printf("\nUsage: %s [-acdnpsSvw] [-Dnumber] [-i[extension]] [-Idirectory]"
+#else
+  printf("\nUsage: %s [-acdnpPsSuUvw] [-Dnumber] [-i[extension]] [-Idirectory]"
+#endif
+         "\n            [-e \"command\"] [-x[directory]] [filename] [arguments]\n", myname);
+
+  printf("\n  -a  autosplit mode with -n or -p"
+         "\n  -c  syntaxcheck only"
+         "\n  -d  run scripts under debugger"
+         "\n  -n  assume 'while (<>) { ...script... }' loop arround your script"
+         "\n  -p  assume loop like -n but print line also like sed"
+#ifndef MSDOS
+         "\n  -P  run script through C preprocessor befor compilation"
+#endif
+         "\n  -s  enable some switch parsing for switches after script name"
+         "\n  -S  look for the script using PATH environment variable");
+#ifndef MSDOS
+  printf("\n  -u  dump core after compiling the script"
+         "\n  -U  allow unsafe operations");
+#endif
+  printf("\n  -v  print version number and patchlevel of perl"
+         "\n  -w  turn warnings on for compilation of your script\n"
+         "\n  -Dnumber        set debugging flags"
+         "\n  -i[extension]   edit <> files in place (make backup if extension supplied)"
+         "\n  -Idirectory     specify include directory in conjunction with -P"
+         "\n  -e command      one line of script, multiple -e options are allowed"
+         "\n                  [filename] can be ommitted, when -e is used"
+         "\n  -x[directory]   strip off text before #!perl line and perhaps cd to directory\n");
+}