Merged the hostap_2.6 updates, and the Leap of Faith work, from the hostap_update...

[mech_eap.git] / libeap / src / utils / edit_simple.c

diff --git a/libeap/src/utils/edit_simple.c b/libeap/src/utils/edit_simple.c
new file mode 100644 (file)
index 0000000..2ffd1a2
--- /dev/null
+++ b/libeap/src/utils/edit_simple.c
@@ -0,0 +1,98 @@
+/*
+ * Minimal command line editing
+ * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "eloop.h"
+#include "edit.h"
+
+
+#define CMD_BUF_LEN 4096
+static char cmdbuf[CMD_BUF_LEN];
+static int cmdbuf_pos = 0;
+static const char *ps2 = NULL;
+
+static void *edit_cb_ctx;
+static void (*edit_cmd_cb)(void *ctx, char *cmd);
+static void (*edit_eof_cb)(void *ctx);
+
+
+static void edit_read_char(int sock, void *eloop_ctx, void *sock_ctx)
+{
+       int c;
+       unsigned char buf[1];
+       int res;
+
+       res = read(sock, buf, 1);
+       if (res < 0)
+               perror("read");
+       if (res <= 0) {
+               edit_eof_cb(edit_cb_ctx);
+               return;
+       }
+       c = buf[0];
+
+       if (c == '\r' || c == '\n') {
+               cmdbuf[cmdbuf_pos] = '\0';
+               cmdbuf_pos = 0;
+               edit_cmd_cb(edit_cb_ctx, cmdbuf);
+               printf("%s> ", ps2 ? ps2 : "");
+               fflush(stdout);
+               return;
+       }
+
+       if (c == '\b') {
+               if (cmdbuf_pos > 0)
+                       cmdbuf_pos--;
+               return;
+       }
+
+       if (c >= 32 && c <= 255) {
+               if (cmdbuf_pos < (int) sizeof(cmdbuf) - 1) {
+                       cmdbuf[cmdbuf_pos++] = c;
+               }
+       }
+}
+
+
+int edit_init(void (*cmd_cb)(void *ctx, char *cmd),
+             void (*eof_cb)(void *ctx),
+             char ** (*completion_cb)(void *ctx, const char *cmd, int pos),
+             void *ctx, const char *history_file, const char *ps)
+{
+       edit_cb_ctx = ctx;
+       edit_cmd_cb = cmd_cb;
+       edit_eof_cb = eof_cb;
+       eloop_register_read_sock(STDIN_FILENO, edit_read_char, NULL, NULL);
+       ps2 = ps;
+
+       printf("%s> ", ps2 ? ps2 : "");
+       fflush(stdout);
+
+       return 0;
+}
+
+
+void edit_deinit(const char *history_file,
+                int (*filter_cb)(void *ctx, const char *cmd))
+{
+       eloop_unregister_read_sock(STDIN_FILENO);
+}
+
+
+void edit_clear_line(void)
+{
+}
+
+
+void edit_redraw(void)
+{
+       cmdbuf[cmdbuf_pos] = '\0';
+       printf("\r> %s", cmdbuf);
+}