From ce05175372a9ddca1a225db0765ace1127a39293 Mon Sep 17 00:00:00 2001
From: Nicholas <nbnoll@eml.cc>
Date: Fri, 12 Nov 2021 09:22:01 -0800
Subject: chore: simplified organizational structure

---
 sys/cmd/rc/sys.c | 137 -------------------------------------------------------
 1 file changed, 137 deletions(-)
 delete mode 100644 sys/cmd/rc/sys.c

(limited to 'sys/cmd/rc/sys.c')

diff --git a/sys/cmd/rc/sys.c b/sys/cmd/rc/sys.c
deleted file mode 100644
index 807359d..0000000
--- a/sys/cmd/rc/sys.c
+++ /dev/null
@@ -1,137 +0,0 @@
-#include "rc.h"
-
-// -----------------------------------------------------------------------
-// internal
-
-static
-char**
-mkargv(Word *args)
-{
-    char **argv=emalloc((count(args)+2)*sizeof(char *));
-    char **argp=argv+1;	/* leave one at front for runcoms */
-
-    for(;args;args=args->link) 
-        *argp++=args->str;
-    *argp=nil;
-
-    return argv;
-}
-
-static
-Word*
-envval(char *s)
-{
-    Word *v;
-    char *t, c;
-
-    for(t=s; *t && *t!='\1'; t++)
-        ;
-
-    c  = *t;
-    *t = '\0';
-
-    v = makeword(s, (c=='\0') ? nil : envval(t+1));
-    *t=c;
-
-    return v;
-}
-
-// -----------------------------------------------------------------------
-// exported
-
-void
-initenv(void)
-{
-    extern char **environ;
-
-    char *s;
-    char **env;
-
-    for(env=environ; *env; env++) {
-        for(s=*env; *s && *s != '(' && *s != '='; s++)
-            ;
-        switch(*s){
-        case '\0':
-            break;
-        case '(': /* ignore functions */
-            break;
-        case '=':
-            *s = '\0';
-            setvar(*env, envval(s+1));
-            *s = '=';
-            break;
-        }
-    }
-}
-
-void
-execute(Word *cmd, Word *path)
-{
-    int nc;
-    char **argv = mkargv(cmd);
-    char **env  = mkenv();
-    char file[1024];
-
-    for(; path; path=path->link){
-        nc = strlen(path->str);
-        if(nc < arrlen(file)){
-            strcpy(file, path->str);
-            if(file[0]){
-                strcat(file, "/");
-                nc++;
-            }
-            if(nc+strlen(argv[1]) < arrlen(file)){
-                strcat(file, argv[1]);
-                execve(file, argv+1, env);
-            }else
-                fatal("command name too long");
-        }
-    }
-    print(shell.err, "could not execute command: %s\n", argv[1]);
-    efree(argv);
-}
-
-void
-redirect(Redir *r)
-{
-    if(r){
-        redirect(r->link);
-        switch(r->type){
-        case Ropen:
-            if(r->from != r->to){
-                dup2(r->from, r->to);
-                close(r->from);
-            }
-            break;
-        case Rdupfd:
-            dup2(r->from, r->to); // TODO: error checking
-            break;
-        case Rclose:
-            close(r->from);
-            break;
-        default:
-            fatal("unrecognized redirection type %d\n", r->type);
-        }
-    }
-}
-
-int
-mapfd(int fd)
-{
-    Redir *r;
-    for(r = runner->redir.end; r; r = r->link){
-        switch(r->type){
-        case Rclose:
-            if(r->from == fd)
-                fd = -1;
-            break;
-        case Rdupfd:
-        case Ropen:
-            if(r->to == fd)
-                fd = r->from;
-            break;
-        }
-    }
-
-    return fd;
-}
-- 
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