1 files changed, 47 insertions, 0 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index d82a081c27..7ffa59f298 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -8495,6 +8495,25 @@ static void f_empty(typval_T *argvars, typval_T *rettv, FunPtr fptr)
   rettv->vval.v_number = n;
 }
 
+/// "environ()" function
+static void f_environ(typval_T *argvars, typval_T *rettv, FunPtr fptr)
+{
+  tv_dict_alloc_ret(rettv);
+
+  for (int i = 0; ; i++) {
+    // TODO(justinmk): use os_copyfullenv from #7202 ?
+    char *envname = os_getenvname_at_index((size_t)i);
+    if (envname == NULL) {
+      break;
+    }
+    const char *value = os_getenv(envname);
+    tv_dict_add_str(rettv->vval.v_dict,
+                    (char *)envname, STRLEN((char *)envname),
+                    value == NULL ? "" : value);
+    xfree(envname);
+  }
+}
+
 /*
  * "escape({string}, {chars})" function
  */
@@ -8508,6 +8527,20 @@ static void f_escape(typval_T *argvars, typval_T *rettv, FunPtr fptr)
   rettv->v_type = VAR_STRING;
 }
 
+/// "getenv()" function
+static void f_getenv(typval_T *argvars, typval_T *rettv, FunPtr fptr)
+{
+  char_u *p = (char_u *)vim_getenv(tv_get_string(&argvars[0]));
+
+  if (p == NULL) {
+    rettv->v_type = VAR_SPECIAL;
+    rettv->vval.v_number = kSpecialVarNull;
+    return;
+  }
+  rettv->vval.v_string = p;
+  rettv->v_type = VAR_STRING;
+}
+
 /*
  * "eval()" function
  */
@@ -15319,6 +15352,20 @@ static void f_setcmdpos(typval_T *argvars, typval_T *rettv, FunPtr fptr)
   }
 }
 
+/// "setenv()" function
+static void f_setenv(typval_T *argvars, typval_T *rettv, FunPtr fptr)
+{
+  char namebuf[NUMBUFLEN];
+  char valbuf[NUMBUFLEN];
+  const char *name = tv_get_string_buf(&argvars[0], namebuf);
+
+  if (argvars[1].v_type == VAR_SPECIAL
+      && argvars[1].vval.v_number == kSpecialVarNull) {
+    os_unsetenv(name);
+  } else {
+    vim_setenv(name, tv_get_string_buf(&argvars[1], valbuf));
+  }
+}
 
 /// "setfperm({fname}, {mode})" function
 static void f_setfperm(typval_T *argvars, typval_T *rettv, FunPtr fptr)