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authorDamjan Marion <damarion@cisco.com>2022-05-08 20:48:37 +0200
committerDave Wallace <dwallacelf@gmail.com>2022-05-13 16:58:03 +0000
commitc50bcbd6c28f2fd87f87b86bd5b215892daf46a6 (patch)
tree33144a097d64ff018972a73692ccc4f86b93a20a /src/vlib/cli.c
parentc0a08cadee9161554246f707eaf24f782086914d (diff)
vlib: process startup config exec scripts line by line
This fixes long standing annoyance that CLIs with optional args cannot be executed from file, as they cannot distinguish between valid optional args and next line in the file. Multiline statements can be provided simply by using backslash before \n. Also comments are supported - everything after # is ignored up to the end of the line. Example: # multiline cli using backslash show version \ verbose # end of line comment packet-generator new { \ name x \ limit 5 \ # comment inside cmultiline cli \ size 128-128 \ interface local0 \ node null-node \ data { \ incrementing 30 \ } \ } Type: fix Change-Id: Ia6d588169bae14e6e3f18effe94820d05ace1dbf Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/cli.c')
-rw-r--r--src/vlib/cli.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/src/vlib/cli.c b/src/vlib/cli.c
index 01409b8b677..80da2d59992 100644
--- a/src/vlib/cli.c
+++ b/src/vlib/cli.c
@@ -199,6 +199,64 @@ unformat_vlib_cli_args (unformat_input_t *i, va_list *va)
return 1;
}
+uword
+unformat_vlib_cli_line (unformat_input_t *i, va_list *va)
+{
+ unformat_input_t *result = va_arg (*va, unformat_input_t *);
+ u8 *line = 0;
+ uword c;
+ int skip;
+
+next_line:
+ skip = 0;
+
+ /* skip leading whitespace if any */
+ unformat_skip_white_space (i);
+
+ if (unformat_is_eof (i))
+ return 0;
+
+ while ((c = unformat_get_input (i)) != UNFORMAT_END_OF_INPUT)
+ {
+ if (c == '\\')
+ {
+ c = unformat_get_input (i);
+
+ if (c == '\n')
+ {
+ if (!skip)
+ vec_add1 (line, '\n');
+ skip = 0;
+ continue;
+ }
+
+ if (!skip)
+ vec_add1 (line, '\\');
+
+ if (c == UNFORMAT_END_OF_INPUT)
+ break;
+
+ if (!skip)
+ vec_add1 (line, c);
+ continue;
+ }
+
+ if (c == '#')
+ skip = 1;
+ else if (c == '\n')
+ break;
+
+ if (!skip)
+ vec_add1 (line, c);
+ }
+
+ if (line == 0)
+ goto next_line;
+
+ unformat_init_vector (result, line);
+ return 1;
+}
+
/* Looks for string based sub-input formatted { SUB-INPUT }. */
uword
unformat_vlib_cli_sub_input (unformat_input_t * i, va_list * args)