env: re-add support for auto-completion

[u-boot] / common / env_common.c

diff --git a/common/env_common.c b/common/env_common.c
index ae710e5e60f3f562f548cd3127b08c69eaae796e..c3e6388ac0b2379f48f5344c62a5bcf67db88377 100644 (file)
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -246,42 +246,32 @@ void env_relocate (void)
        }
 }
 
-#if 0 /* need to reimplement - def CONFIG_AUTO_COMPLETE */
+#ifdef CONFIG_AUTO_COMPLETE
 int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf)
 {
-       int i, nxt, len, vallen, found;
-       const char *lval, *rval;
+       ENTRY *match;
+       int found, idx;
 
+       idx = 0;
        found = 0;
        cmdv[0] = NULL;
 
-       len = strlen(var);
-       /* now iterate over the variables and select those that match */
-       for (i=0; env_get_char(i) != '\0'; i=nxt+1) {
+       while ((idx = hmatch_r(var, idx, &match, &env_htab))) {
+               int vallen = strlen(match->key) + 1;
 
-               for (nxt=i; env_get_char(nxt) != '\0'; ++nxt)
-                       ;
-
-               lval = (char *)env_get_addr(i);
-               rval = strchr(lval, '=');
-               if (rval != NULL) {
-                       vallen = rval - lval;
-                       rval++;
-               } else
-                       vallen = strlen(lval);
-
-               if (len > 0 && (vallen < len || memcmp(lval, var, len) != 0))
-                       continue;
-
-               if (found >= maxv - 2 || bufsz < vallen + 1) {
-                       cmdv[found++] = "...";
+               if (found >= maxv - 2 || bufsz < vallen)
                        break;
-               }
+
                cmdv[found++] = buf;
-               memcpy(buf, lval, vallen); buf += vallen; bufsz -= vallen;
-               *buf++ = '\0'; bufsz--;
+               memcpy(buf, match->key, vallen);
+               buf += vallen;
+               bufsz -= vallen;
        }
 
+       qsort(cmdv, found, sizeof(cmdv[0]), strcmp_compar);
+
+       if (idx)
+               cmdv[found++] = "...";
        cmdv[found] = NULL;
        return found;
 }