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-rw-r--r--common/env_common.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/common/env_common.c b/common/env_common.c
index e7ee4991f8..d46f24f603 100644
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -260,3 +260,44 @@ void env_relocate (void)
disable_nvram();
#endif
}
+
+#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;
+
+ 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) {
+
+ for (nxt=i; env_get_char(nxt) != '\0'; ++nxt)
+ ;
+
+ lval = 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++] = "...";
+ break;
+ }
+ cmdv[found++] = buf;
+ memcpy(buf, lval, vallen); buf += vallen; bufsz -= vallen;
+ *buf++ = '\0'; bufsz--;
+ }
+
+ cmdv[found] = NULL;
+ return found;
+}
+#endif
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