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Validate command argument types (string or command list) and give more

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useful error messages.
This commit is contained in:
nicm
2021-08-25 08:51:55 +00:00
parent c6d6af4903
commit 03d173cbd8
12 changed files with 230 additions and 44 deletions
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10
cmd.c
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@ -502,6 +502,7 @@ cmd_parse(struct args_value *values, u_int count, const char *file, u_int line,
const struct cmd_entry *entry;
struct cmd *cmd;
struct args *args;
char *error;
if (count == 0 || values[0].type != ARGS_STRING) {
xasprintf(cause, "no command");
@ -511,11 +512,16 @@ cmd_parse(struct args_value *values, u_int count, const char *file, u_int line,
if (entry == NULL)
return (NULL);
args = args_parse(&entry->args, values, count);
if (args == NULL) {
args = args_parse(&entry->args, values, count, &error);
if (args == NULL && error == NULL) {
xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
return (NULL);
}
if (args == NULL) {
xasprintf(cause, "command %s: %s", entry->name, error);
free(error);
return (NULL);
}
cmd = xcalloc(1, sizeof *cmd);
cmd->entry = entry;