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Merge branch 'obsd-master' into master
This commit is contained in:
Thomas Adam
commit
84955e3d62
271
cmd-parse.y
271
cmd-parse.y
@ -60,9 +60,6 @@ struct cmd_parse_command {
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u_int line;
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struct cmd_parse_arguments arguments;
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int argc;
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char **argv;
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TAILQ_ENTRY(cmd_parse_command) entry;
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};
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TAILQ_HEAD(cmd_parse_commands, cmd_parse_command);
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@ -92,10 +89,10 @@ static char *cmd_parse_get_error(const char *, u_int, const char *);
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static void cmd_parse_free_command(struct cmd_parse_command *);
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static struct cmd_parse_commands *cmd_parse_new_commands(void);
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static void cmd_parse_free_commands(struct cmd_parse_commands *);
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static char *cmd_parse_commands_to_string(struct cmd_parse_commands *);
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static void cmd_parse_print_commands(struct cmd_parse_input *, u_int,
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static void cmd_parse_build_commands(struct cmd_parse_commands *,
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struct cmd_parse_input *, struct cmd_parse_result *);
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static void cmd_parse_print_commands(struct cmd_parse_input *,
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struct cmd_list *);
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static void cmd_parse_flatten_command(struct cmd_parse_command *);
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%}
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@ -587,19 +584,32 @@ cmd_parse_get_error(const char *file, u_int line, const char *error)
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}
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static void
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cmd_parse_print_commands(struct cmd_parse_input *pi, u_int line,
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struct cmd_list *cmdlist)
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cmd_parse_print_commands(struct cmd_parse_input *pi, struct cmd_list *cmdlist)
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{
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char *s;
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if (pi->item != NULL && (pi->flags & CMD_PARSE_VERBOSE)) {
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s = cmd_list_print(cmdlist, 0);
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if (pi->file != NULL)
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cmdq_print(pi->item, "%s:%u: %s", pi->file, line, s);
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else
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cmdq_print(pi->item, "%u: %s", line, s);
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free(s);
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if (pi->item == NULL || (~pi->flags & CMD_PARSE_VERBOSE))
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return;
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s = cmd_list_print(cmdlist, 0);
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if (pi->file != NULL)
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cmdq_print(pi->item, "%s:%u: %s", pi->file, pi->line, s);
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else
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cmdq_print(pi->item, "%u: %s", pi->line, s);
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free(s);
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}
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static void
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cmd_parse_free_argument(struct cmd_parse_argument *arg)
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{
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switch (arg->type) {
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case CMD_PARSE_STRING:
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free(arg->string);
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break;
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case CMD_PARSE_COMMANDS:
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cmd_parse_free_commands(arg->commands);
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break;
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}
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free(arg);
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}
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static void
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@ -608,23 +618,14 @@ cmd_parse_free_arguments(struct cmd_parse_arguments *args)
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struct cmd_parse_argument *arg, *arg1;
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TAILQ_FOREACH_SAFE(arg, args, entry, arg1) {
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switch (arg->type) {
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case CMD_PARSE_STRING:
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free(arg->string);
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break;
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case CMD_PARSE_COMMANDS:
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cmd_parse_free_commands(arg->commands);
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break;
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}
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TAILQ_REMOVE(args, arg, entry);
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free(arg);
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cmd_parse_free_argument(arg);
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}
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}
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static void
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cmd_parse_free_command(struct cmd_parse_command *cmd)
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{
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cmd_free_argv(cmd->argc, cmd->argv);
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cmd_parse_free_arguments(&cmd->arguments);
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free(cmd);
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}
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@ -729,144 +730,120 @@ cmd_parse_log_commands(struct cmd_parse_commands *cmds, const char *prefix)
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}
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}
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static char *
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cmd_parse_commands_to_string(struct cmd_parse_commands *cmds)
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static int
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cmd_parse_expand_alias(struct cmd_parse_command *cmd,
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struct cmd_parse_input *pi, struct cmd_parse_result *pr,
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struct cmd_list **cmdlist)
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{
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struct cmd_parse_command *cmd;
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char *string = NULL, *s, *line;
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struct cmd_parse_argument *arg, *arg1, *first, *after;
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struct cmd_parse_commands *cmds;
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struct cmd_parse_command *last;
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char *alias, *name, *cause;
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TAILQ_FOREACH(cmd, cmds, entry) {
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cmd_parse_flatten_command(cmd);
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*cmdlist = NULL;
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line = cmd_stringify_argv(cmd->argc, cmd->argv);
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if (string == NULL)
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s = line;
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else {
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xasprintf(&s, "%s ; %s", s, line);
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free(line);
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}
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free(string);
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string = s;
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first = TAILQ_FIRST(&cmd->arguments);
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if (first == NULL || first->type != CMD_PARSE_STRING) {
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pr->status = CMD_PARSE_EMPTY;
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return (1);
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}
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if (string == NULL)
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string = xstrdup("");
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log_debug("%s: %s", __func__, string);
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return (string);
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name = first->string;
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alias = cmd_get_alias(name);
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if (alias == NULL)
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return (0);
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log_debug("%s: %u alias %s = %s", __func__, pi->line, name, alias);
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cmds = cmd_parse_do_buffer(alias, strlen(alias), pi, &cause);
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free(alias);
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if (cmds == NULL) {
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pr->status = CMD_PARSE_ERROR;
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pr->error = cause;
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return (1);
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}
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last = TAILQ_LAST(cmds, cmd_parse_commands);
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if (last == NULL) {
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*cmdlist = cmd_list_new();
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return (1);
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}
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TAILQ_REMOVE(&cmd->arguments, first, entry);
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cmd_parse_free_argument(first);
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after = TAILQ_NEXT(TAILQ_FIRST(&last->arguments), entry);
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TAILQ_FOREACH_SAFE(arg, &cmd->arguments, entry, arg1) {
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TAILQ_REMOVE(&cmd->arguments, arg, entry);
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if (after == NULL)
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TAILQ_INSERT_TAIL(&last->arguments, arg, entry);
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else
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TAILQ_INSERT_AFTER(&last->arguments, after, arg, entry);
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after = arg;
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}
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cmd_parse_log_commands(cmds, __func__);
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cmd_parse_build_commands(cmds, pi, pr);
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if (pr->status != CMD_PARSE_SUCCESS)
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*cmdlist = pr->cmdlist;
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return (1);
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}
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static void
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cmd_parse_flatten_command(struct cmd_parse_command *cmd)
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static struct cmd_list *
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cmd_parse_build_command(struct cmd_parse_command *cmd,
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struct cmd_parse_input *pi, struct cmd_parse_result *pr)
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{
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struct cmd_parse_argument *arg;
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char *s;
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struct cmd_list *cmdlist;
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struct cmd *add;
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char *s, **argv = NULL, *cause;
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int argc = 0;
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cmd->argc = 0;
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cmd->argv = NULL;
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if (cmd_parse_expand_alias(cmd, pi, pr, &cmdlist))
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return (cmdlist);
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TAILQ_FOREACH(arg, &cmd->arguments, entry) {
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switch (arg->type) {
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case CMD_PARSE_STRING:
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cmd_append_argv(&cmd->argc, &cmd->argv, arg->string);
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cmd_append_argv(&argc, &argv, arg->string);
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break;
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case CMD_PARSE_COMMANDS:
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s = cmd_parse_commands_to_string(arg->commands);
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cmd_append_argv(&cmd->argc, &cmd->argv, s);
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cmd_parse_build_commands(arg->commands, pi, pr);
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if (pr->status != CMD_PARSE_SUCCESS)
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return (NULL);
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s = cmd_list_print(pr->cmdlist, 0);
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cmd_append_argv(&argc, &argv, s);
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free(s);
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break;
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}
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}
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}
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static struct cmd *
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cmd_parse_build_command(struct cmd_parse_command *cmd,
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struct cmd_parse_input *pi, u_int line, struct cmd_parse_result *pr)
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{
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struct cmd *add;
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char *cause;
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add = cmd_parse(cmd->argc, cmd->argv, pi->file, line, &cause);
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add = cmd_parse(argc, argv, pi->file, pi->line, &cause);
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if (add == NULL) {
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pr->status = CMD_PARSE_ERROR;
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pr->error = cmd_parse_get_error(pi->file, line, cause);
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pr->error = cmd_parse_get_error(pi->file, pi->line, cause);
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free(cause);
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return (NULL);
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}
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return (add);
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cmdlist = cmd_list_new();
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cmd_list_append(cmdlist, add);
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return (cmdlist);
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}
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static struct cmd_parse_result *
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static void
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cmd_parse_build_commands(struct cmd_parse_commands *cmds,
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struct cmd_parse_input *pi)
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struct cmd_parse_input *pi, struct cmd_parse_result *pr)
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{
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static struct cmd_parse_result pr;
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struct cmd_parse_commands *cmds2;
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struct cmd_parse_command *cmd, *cmd2, *next, *next2, *after;
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struct cmd_parse_command *cmd;
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u_int line = UINT_MAX;
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int i;
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struct cmd_list *current = NULL, *result;
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struct cmd *add;
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char *name, *alias, *cause, *s;
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struct cmd_list *current = NULL, *result, *add;
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char *s;
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/* Check for an empty list. */
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if (TAILQ_EMPTY(cmds)) {
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cmd_parse_free_commands(cmds);
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pr.status = CMD_PARSE_EMPTY;
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return (&pr);
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}
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/* Flatten command arguments. */
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cmd_parse_log_commands(cmds, __func__);
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TAILQ_FOREACH(cmd, cmds, entry)
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cmd_parse_flatten_command(cmd);
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/*
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* Walk the commands and expand any aliases. Each alias is parsed
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* individually to a new command list, any trailing arguments appended
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* to the last command, and all commands inserted into the original
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* command list.
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*/
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TAILQ_FOREACH_SAFE(cmd, cmds, entry, next) {
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name = cmd->argv[0];
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alias = cmd_get_alias(name);
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if (alias == NULL)
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continue;
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line = cmd->line;
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log_debug("%s: %u %s = %s", __func__, line, name, alias);
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pi->line = line;
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cmds2 = cmd_parse_do_buffer(alias, strlen(alias), pi, &cause);
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free(alias);
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if (cmds2 == NULL) {
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pr.status = CMD_PARSE_ERROR;
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pr.error = cause;
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goto out;
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}
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cmd2 = TAILQ_LAST(cmds2, cmd_parse_commands);
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if (cmd2 == NULL) {
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TAILQ_REMOVE(cmds, cmd, entry);
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cmd_parse_free_command(cmd);
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continue;
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}
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cmd_parse_flatten_command(cmd2);
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for (i = 1; i < cmd->argc; i++)
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cmd_append_argv(&cmd2->argc, &cmd2->argv, cmd->argv[i]);
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after = cmd;
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TAILQ_FOREACH_SAFE(cmd2, cmds2, entry, next2) {
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cmd2->line = line;
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TAILQ_REMOVE(cmds2, cmd2, entry);
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TAILQ_INSERT_AFTER(cmds, after, cmd2, entry);
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after = cmd2;
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}
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cmd_parse_free_commands(cmds2);
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TAILQ_REMOVE(cmds, cmd, entry);
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cmd_parse_free_command(cmd);
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pr->status = CMD_PARSE_EMPTY;
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return;
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}
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cmd_parse_log_commands(cmds, __func__);
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/*
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* Parse each command into a command list. Create a new command list
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@ -878,7 +855,7 @@ cmd_parse_build_commands(struct cmd_parse_commands *cmds,
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TAILQ_FOREACH(cmd, cmds, entry) {
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if (((~pi->flags & CMD_PARSE_ONEGROUP) && cmd->line != line)) {
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if (current != NULL) {
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cmd_parse_print_commands(pi, line, current);
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cmd_parse_print_commands(pi, current);
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cmd_list_move(result, current);
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cmd_list_free(current);
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}
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@ -886,18 +863,19 @@ cmd_parse_build_commands(struct cmd_parse_commands *cmds,
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}
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if (current == NULL)
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current = cmd_list_new();
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line = cmd->line;
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line = pi->line = cmd->line;
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add = cmd_parse_build_command(cmd, pi, line, &pr);
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add = cmd_parse_build_command(cmd, pi, pr);
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if (add == NULL) {
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cmd_list_free(result);
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cmd_list_free(current);
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goto out;
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return;
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}
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cmd_list_append(current, add);
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cmd_list_move(current, add);
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cmd_list_free(add);
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}
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if (current != NULL) {
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cmd_parse_print_commands(pi, line, current);
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cmd_parse_print_commands(pi, current);
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cmd_list_move(result, current);
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cmd_list_free(current);
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}
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@ -906,13 +884,8 @@ cmd_parse_build_commands(struct cmd_parse_commands *cmds,
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log_debug("%s: %s", __func__, s);
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free(s);
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pr.status = CMD_PARSE_SUCCESS;
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pr.cmdlist = result;
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out:
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cmd_parse_free_commands(cmds);
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return (&pr);
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pr->status = CMD_PARSE_SUCCESS;
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pr->cmdlist = result;
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}
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struct cmd_parse_result *
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@ -935,7 +908,10 @@ cmd_parse_from_file(FILE *f, struct cmd_parse_input *pi)
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pr.error = cause;
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return (&pr);
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}
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return (cmd_parse_build_commands(cmds, pi));
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cmd_parse_build_commands(cmds, pi, &pr);
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cmd_parse_free_commands(cmds);
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return (&pr);
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}
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struct cmd_parse_result *
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@ -1036,7 +1012,9 @@ cmd_parse_from_buffer(const void *buf, size_t len, struct cmd_parse_input *pi)
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pr.error = cause;
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return (&pr);
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}
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return (cmd_parse_build_commands(cmds, pi));
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cmd_parse_build_commands(cmds, pi, &pr);
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cmd_parse_free_commands(cmds);
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return (&pr);
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}
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static void
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@ -1066,6 +1044,7 @@ cmd_parse_add_command(struct cmd_parse_commands *cmds,
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struct cmd_parse_result *
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cmd_parse_from_arguments(int argc, char **argv, struct cmd_parse_input *pi)
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{
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static struct cmd_parse_result pr;
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struct cmd_parse_input input;
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struct cmd_parse_commands *cmds;
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char **copy, **new_argv;
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@ -1115,7 +1094,9 @@ cmd_parse_from_arguments(int argc, char **argv, struct cmd_parse_input *pi)
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}
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cmd_free_argv(argc, copy);
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return (cmd_parse_build_commands(cmds, pi));
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cmd_parse_build_commands(cmds, pi, &pr);
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cmd_parse_free_commands(cmds);
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return (&pr);
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}
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static int printflike(1, 2)
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|
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