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- #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"
-
- /* hold file pointer, command, mode, and the status of the command */
- struct pipe_list {
- FILE *fp;
- int exit_status;
- struct pipe_list *next;
- char *command, mode;
- };
-
- /* static, global list pointer */
- static struct pipe_list *pl = NULL;
-
- FILE *
- popen (const char *cm, const char *md) /* program name, pipe mode */
- {
- struct pipe_list *l1;
- int fd;
- char *temp_name=NULL;
-
- /* make new node */
- if ((l1 = (struct pipe_list *) malloc (sizeof (*l1)))
- && (temp_name = malloc (L_tmpnam)) && tmpnam (temp_name))
- {
- l1->fp = NULL;
- l1->command = NULL;
- l1->next = pl;
- l1->exit_status = -1;
- l1->mode = md[0];
-
- /* if caller wants to read */
- if (md[0] == 'r' && (fd = dup (fileno (stdout))) >= 0)
- {
- if ((l1->fp = freopen (temp_name, "wb", stdout)))
- {
- l1->exit_status = system (cm);
- if (dup2 (fd, fileno (stdout)) >= 0)
- l1->fp = fopen (temp_name, md);
- }
- close (fd);
- }
- /* if caller wants to write */
- else if (md[0] == 'w' && (l1->command = malloc (1 + strlen (cm))))
- {
- strcpy (l1->command, cm);
- l1->fp = fopen (temp_name, md);
- }
-
- if (l1->fp)
- {
- l1->fp->_flag |= _IORMONCL; /* remove on close */
- l1->fp->_name_to_remove = temp_name;
- return (pl = l1)->fp;
- }
- free (l1->command);
- }
- free (temp_name);
- free (l1);
- return NULL;
- }
-
- int
- pclose (FILE *pp)
- {
- struct pipe_list *l1, **l2; /* list pointers */
- int retval=-1; /* function return value */
-
- for (l2 = &pl; *l2 && (*l2)->fp != pp; l2 = &((*l2)->next))
- ;
- if (!(l1 = *l2))
- return retval;
- *l2 = l1->next;
-
- /* if pipe was opened to write */
- if (l1->mode == 'w')
- {
- int fd;
- fflush (l1->fp);
- close (fileno (l1->fp));
-
- if ((fd = dup (fileno (stdin))) >= 0
- && (freopen (l1->fp->_name_to_remove, "rb", stdin)))
- {
- retval = system (l1->command);
- dup2 (fd, fileno (stdin));
- }
- close (fd);
- free (l1->command);
- }
- else
- /* if pipe was opened to read, return the exit status we saved */
- retval = l1->exit_status;
-
- fclose (l1->fp); /* this removes the temp file */
- free (l1);
- return retval; /* retval==0 ? OK : ERROR */
- }
-
- /**/
-
- #define EXECF_SPAWN 0
- #define EXECF_EXEC 1
-
- static int
- convretcode (int rc,char *prog,int fl)
- {
- if (rc < 0 && PL_dowarn)
- warn ("Can't %s \"%s\": %s",fl ? "exec" : "spawn",prog,Strerror (errno));
- if (rc > 0)
- return rc <<= 8;
- if (rc < 0)
- return 255 << 8;
- return 0;
- }
-
- int
- do_aspawn (SV *really,SV **mark,SV **sp)
- {
- dTHR;
- int rc;
- char **a,*tmps,**argv;
-
- if (sp<=mark)
- return -1;
- a=argv=(char**) alloca ((sp-mark+3)*sizeof (char*));
-
- while (++mark <= sp)
- if (*mark)
- *a++ = SvPVx(*mark, PL_na);
- else
- *a++ = "";
- *a = Nullch;
-
- if (argv[0][0] != '/' && argv[0][0] != '\\'
- && !(argv[0][0] && argv[0][1] == ':'
- && (argv[0][2] == '/' || argv[0][2] != '\\'))
- ) /* will swawnvp use PATH? */
- TAINT_ENV(); /* testing IFS here is overkill, probably */
-
- if (really && *(tmps = SvPV(really, PL_na)))
- rc=spawnvp (P_WAIT,tmps,argv);
- else
- rc=spawnvp (P_WAIT,argv[0],argv);
-
- return convretcode (rc,argv[0],EXECF_SPAWN);
- }
-
- #define EXTRA "\x00\x00\x00\x00\x00\x00"
-
- int
- do_spawn2 (char *cmd,int execf)
- {
- char **a,*s,*shell,*metachars;
- int rc,unixysh;
-
- if ((shell=getenv("SHELL"))==NULL && (shell=getenv("COMSPEC"))==NULL)
- shell="c:\\command.com" EXTRA;
-
- unixysh=_is_unixy_shell (shell);
- metachars=unixysh ? "$&*(){}[]'\";\\?>|<~`\n" EXTRA : "*?[|<>\"\\" EXTRA;
-
- while (*cmd && isSPACE(*cmd))
- cmd++;
-
- if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7]))
- cmd+=5;
-
- /* save an extra exec if possible */
- /* see if there are shell metacharacters in it */
- if (strstr (cmd,"..."))
- goto doshell;
- if (unixysh)
- {
- if (*cmd=='.' && isSPACE (cmd[1]))
- goto doshell;
- if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4]))
- goto doshell;
- for (s=cmd; *s && isALPHA (*s); s++) ; /* catch VAR=val gizmo */
- if (*s=='=')
- goto doshell;
- }
- for (s=cmd; *s; s++)
- if (strchr (metachars,*s))
- {
- if (*s=='\n' && s[1]=='\0')
- {
- *s='\0';
- break;
- }
- doshell:
- if (execf==EXECF_EXEC)
- return convretcode (execl (shell,shell,unixysh ? "-c" : "/c",cmd,NULL),cmd,execf);
- return convretcode (system (cmd),cmd,execf);
- }
-
- New (1303,PL_Argv,(s-cmd)/2+2,char*);
- PL_Cmd=savepvn (cmd,s-cmd);
- a=PL_Argv;
- for (s=PL_Cmd; *s;) {
- while (*s && isSPACE (*s)) s++;
- if (*s)
- *(a++)=s;
- while (*s && !isSPACE (*s)) s++;
- if (*s)
- *s++='\0';
- }
- *a=Nullch;
- if (!PL_Argv[0])
- return -1;
-
- if (execf==EXECF_EXEC)
- rc=execvp (PL_Argv[0],PL_Argv);
- else
- rc=spawnvp (P_WAIT,PL_Argv[0],PL_Argv);
- return convretcode (rc,PL_Argv[0],execf);
- }
-
- int
- do_spawn (char *cmd)
- {
- return do_spawn2 (cmd,EXECF_SPAWN);
- }
-
- bool
- do_exec (char *cmd)
- {
- do_spawn2 (cmd,EXECF_EXEC);
- return FALSE;
- }
-
- /**/
-
- struct globinfo
- {
- int fd;
- char *matches;
- size_t size;
- };
-
- #define MAXOPENGLOBS 10
-
- static struct globinfo myglobs[MAXOPENGLOBS];
-
- static struct globinfo *
- searchfd (int fd)
- {
- int ic;
- for (ic=0; ic<MAXOPENGLOBS; ic++)
- if (myglobs[ic].fd==fd)
- return myglobs+ic;
- return NULL;
- }
-
- static int
- glob_handler (__FSEXT_Fnumber n,int *rv,va_list args)
- {
- unsigned ic;
- struct globinfo *gi;
- switch (n)
- {
- case __FSEXT_open:
- {
- char *p1,*pattern,*name=va_arg (args,char*);
- STRLEN len;
- glob_t pglob;
-
- if (strnNE (name,"/dev/dosglob/",13))
- break;
- if ((gi=searchfd (-1)) == NULL)
- break;
-
- pattern=alloca (strlen (name+=13)+1);
- strcpy (pattern,name);
- if (!_USE_LFN)
- strlwr (pattern);
- ic=pglob.gl_pathc=0;
- pglob.gl_pathv=NULL;
- while (pattern)
- {
- if ((p1=strchr (pattern,' '))!=NULL)
- *p1=0;
- glob (pattern,ic,0,&pglob);
- ic=GLOB_APPEND;
- if ((pattern=p1)!=NULL)
- pattern++;
- }
- for (ic=len=0; ic<pglob.gl_pathc; ic++)
- len+=1+strlen (pglob.gl_pathv[ic]);
- if (len)
- {
- if ((gi->matches=p1=(char*) malloc (gi->size=len))==NULL)
- break;
- for (ic=0; ic<pglob.gl_pathc; ic++)
- {
- strcpy (p1,pglob.gl_pathv[ic]);
- p1+=strlen (p1)+1;
- }
- }
- else
- {
- if ((gi->matches=strdup (name))==NULL)
- break;
- gi->size=strlen (name)+1;
- }
- globfree (&pglob);
- gi->fd=*rv=__FSEXT_alloc_fd (glob_handler);
- return 1;
- }
- case __FSEXT_read:
- {
- int fd=va_arg (args,int);
- char *buf=va_arg (args,char*);
- size_t siz=va_arg (args,size_t);
-
- if ((gi=searchfd (fd))==NULL)
- break;
-
- ic=tell (fd);
- if (siz+ic>=gi->size)
- siz=gi->size-ic;
- memcpy (buf,ic+gi->matches,siz);
- lseek (fd,siz,1);
- *rv=siz;
- return 1;
- }
- case __FSEXT_close:
- {
- int fd=va_arg (args,int);
-
- if ((gi=searchfd (fd))==NULL)
- break;
- free (gi->matches);
- gi->fd=-1;
- break;
- }
- default:
- break;
- }
- return 0;
- }
-
- static
- XS(dos_GetCwd)
- {
- dXSARGS;
-
- if (items)
- croak ("Usage: Dos::GetCwd()");
- {
- char tmp[PATH_MAX+2];
- ST(0)=sv_newmortal ();
- if (getcwd (tmp,PATH_MAX+1)!=NULL)
- sv_setpv ((SV*)ST(0),tmp);
- }
- XSRETURN (1);
- }
-
- static
- XS(dos_UseLFN)
- {
- dXSARGS;
- XSRETURN_IV (_USE_LFN);
- }
-
- void
- init_os_extras()
- {
- char *file = __FILE__;
-
- dXSUB_SYS;
-
- newXS ("Dos::GetCwd",dos_GetCwd,file);
- newXS ("Dos::UseLFN",dos_UseLFN,file);
-
- /* install my File System Extension for globbing */
- __FSEXT_add_open_handler (glob_handler);
- memset (myglobs,-1,sizeof (myglobs));
- }
-
- static char *perlprefix;
-
- #define PERL5 "/perl5"
-
- char *djgpp_pathexp (const char *p)
- {
- static char expp[PATH_MAX];
- strcpy (expp,perlprefix);
- switch (p[0])
- {
- case 'B':
- strcat (expp,"/bin");
- break;
- case 'S':
- strcat (expp,"/lib" PERL5 "/site");
- break;
- default:
- strcat (expp,"/lib" PERL5);
- break;
- }
- return expp;
- }
-
- void
- Perl_DJGPP_init (int *argcp,char ***argvp)
- {
- char *p;
-
- perlprefix=strdup (**argvp);
- strlwr (perlprefix);
- if ((p=strrchr (perlprefix,'/'))!=NULL)
- {
- *p=0;
- if (strEQ (p-4,"/bin"))
- p[-4]=0;
- }
- else
- strcpy (perlprefix,"..");
- }
-
-