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- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <exec/types.h>
- #include <dos/dos.h>
- #include <dos/dostags.h>
- #ifdef __SASC
- #include <proto/dos.h>
- #endif
- #ifdef __GNUC__
- #include <inline/dos.h>
- #endif
-
- #ifndef AMIGA
- static char template[] = "piXXXXXX";
- #else
- extern char *mktemp(char *);
- #endif
-
- typedef enum { unopened = 0, reading, writing } pipemode;
- static
- struct {
- char *command;
- char *name;
- pipemode pmode;
- } pipes[FOPEN_MAX];
-
- static struct TagItem Tags[] = {
- {NP_StackSize, 250000},
- {TAG_DONE, NULL}
- };
-
- FILE *
- popen(const char *command, const char *mode ) {
- FILE *current;
- char *name;
- int cur;
- pipemode curmode;
- #ifdef AMIGA
- char template[] = "T:piXXXXXX";
- #endif
- /*
- ** decide on mode.
- */
- if(strcmp(mode,"r") == 0)
- curmode = reading;
- else if(strcmp(mode,"w") == 0)
- curmode = writing;
- else
- return NULL;
- /*
- ** get a name to use.
- */
- #ifdef AMIGA
- name = mktemp(template);
- #else
- if((name = tempnam(".","pip"))==NULL)
- return NULL;
- #endif
- /*
- ** If we're reading, just call system to get a file filled with
- ** output.
- */
- if(curmode == reading) {
- char cmd[256];
- sprintf(cmd,"%s > %s",command,name);
- SystemTagList(cmd, Tags);
- if((current = fopen(name,"r")) == NULL)
- return NULL;
- } else {
- if((current = fopen(name,"w")) == NULL)
- return NULL;
- }
- cur = fileno(current);
- pipes[cur].name = strdup(name);
- pipes[cur].pmode = curmode;
- pipes[cur].command = strdup(command);
- return current;
- }
-
- int
- pclose( FILE * current) {
- int cur = fileno(current),rval;
- /*
- ** check for an open file.
- */
- if(pipes[cur].pmode == unopened)
- return -1;
- if(pipes[cur].pmode == reading) {
- /*
- ** input pipes are just files we're done with.
- */
- rval = fclose(current);
- unlink(pipes[cur].name);
- } else {
- /*
- ** output pipes are temporary files we have
- ** to cram down the throats of programs.
- */
- char command[256];
- fclose(current);
- sprintf(command,"%s < %s",pipes[cur].command,pipes[cur].name);
- rval = SystemTagList(command, Tags);
- unlink(pipes[cur].name);
- }
- /*
- ** clean up current pipe.
- */
- pipes[cur].pmode = unopened;
- free(pipes[cur].name);
- free(pipes[cur].command);
- return rval;
- }
-
- /* Special version of popen, to call the SAS/C preprocessor */
- FILE *
- popen2(const char *command) {
- FILE *current;
- char *name;
- int cur;
- char template[] = "T:piXXXXXX";
- char cmd[256], tmpname[256];
- char *fname, *fpart;
- BPTR l;
- /*
- ** get a name to use.
- */
- name = mktemp(template);
- /*
- ** We're reading, just call system to get a file filled with
- ** output.
- */
- fname = strrchr(command, ' ');
- *fname++ = 0;
- l = Lock(fname, ACCESS_READ);
- if (!l) return NULL;
- strcpy(tmpname, fname);
- fpart = FilePart(tmpname);
- *fpart = 0;
- strcat(tmpname, "__ray__.c");
- MakeLink(tmpname, l, 0);
- UnLock(l);
- sprintf(cmd,"%s OBJNAME %s %s",command,name,tmpname);
- cmd[strlen(cmd)-2] = '\0';
- SystemTagList(cmd, Tags);
- DeleteFile(tmpname);
- *--fname = ' ';
- if((current = fopen(name,"r")) == NULL)
- return NULL;
- cur = fileno(current);
- pipes[cur].name = strdup(name);
- pipes[cur].pmode = reading;
- pipes[cur].command = strdup(command);
- return current;
- }
-