Merge branch 'obsd-master'

This commit is contained in:
Thomas Adam
2019-05-25 18:41:51 +01:00
12 changed files with 220 additions and 128 deletions

View File

@@ -215,14 +215,13 @@ client_exit_message(void)
int int
client_main(struct event_base *base, int argc, char **argv, int flags) client_main(struct event_base *base, int argc, char **argv, int flags)
{ {
struct cmd_parse_result *pr;
struct cmd *cmd; struct cmd *cmd;
struct cmd_list *cmdlist;
struct msg_command_data *data; struct msg_command_data *data;
int cmdflags, fd, i; int cmdflags, fd, i;
const char *ttynam, *cwd; const char *ttynam, *cwd;
pid_t ppid; pid_t ppid;
enum msgtype msg; enum msgtype msg;
char *cause;
struct termios tio, saved_tio; struct termios tio, saved_tio;
size_t size; size_t size;
@@ -248,14 +247,15 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
* later in server) but it is necessary to get the start server * later in server) but it is necessary to get the start server
* flag. * flag.
*/ */
cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause); pr = cmd_parse_from_arguments(argc, argv, NULL);
if (cmdlist != NULL) { if (pr->status == CMD_PARSE_SUCCESS) {
TAILQ_FOREACH(cmd, &cmdlist->list, qentry) { TAILQ_FOREACH(cmd, &pr->cmdlist->list, qentry) {
if (cmd->entry->flags & CMD_STARTSERVER) if (cmd->entry->flags & CMD_STARTSERVER)
cmdflags |= CMD_STARTSERVER; cmdflags |= CMD_STARTSERVER;
} }
cmd_list_free(cmdlist); cmd_list_free(pr->cmdlist);
} } else
free(pr->error);
} }
/* Create client process structure (starts logging). */ /* Create client process structure (starts logging). */

View File

@@ -44,11 +44,10 @@ const struct cmd_entry cmd_bind_key_entry = {
static enum cmd_retval static enum cmd_retval
cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item) cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item)
{ {
struct args *args = self->args; struct args *args = self->args;
char *cause; key_code key;
struct cmd_list *cmdlist; const char *tablename;
key_code key; struct cmd_parse_result *pr;
const char *tablename;
key = key_string_lookup_string(args->argv[0]); key = key_string_lookup_string(args->argv[0]);
if (key == KEYC_NONE || key == KEYC_UNKNOWN) { if (key == KEYC_NONE || key == KEYC_UNKNOWN) {
@@ -63,14 +62,18 @@ cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item)
else else
tablename = "prefix"; tablename = "prefix";
cmdlist = cmd_list_parse(args->argc - 1, args->argv + 1, NULL, 0, pr = cmd_parse_from_arguments(args->argc - 1, args->argv + 1, NULL);
&cause); switch (pr->status) {
if (cmdlist == NULL) { case CMD_PARSE_EMPTY:
cmdq_error(item, "%s", cause); cmdq_error(item, "empty command");
free(cause);
return (CMD_RETURN_ERROR); return (CMD_RETURN_ERROR);
case CMD_PARSE_ERROR:
cmdq_error(item, "%s", pr->error);
free(pr->error);
return (CMD_RETURN_ERROR);
case CMD_PARSE_SUCCESS:
break;
} }
key_bindings_add(tablename, key, args_has(args, 'r'), pr->cmdlist);
key_bindings_add(tablename, key, args_has(args, 'r'), cmdlist);
return (CMD_RETURN_NORMAL); return (CMD_RETURN_NORMAL);
} }

View File

@@ -159,7 +159,7 @@ cmd_if_shell_callback(struct job *job)
struct cmd_if_shell_data *cdata = job_get_data(job); struct cmd_if_shell_data *cdata = job_get_data(job);
struct client *c = cdata->client; struct client *c = cdata->client;
struct mouse_event *m = &cdata->mouse; struct mouse_event *m = &cdata->mouse;
struct cmdq_item *new_item; struct cmdq_item *new_item = NULL;
char *cmd; char *cmd;
int status; int status;
struct cmd_parse_result *pr; struct cmd_parse_result *pr;
@@ -175,10 +175,10 @@ cmd_if_shell_callback(struct job *job)
pr = cmd_parse_from_string(cmd, &cdata->input); pr = cmd_parse_from_string(cmd, &cdata->input);
switch (pr->status) { switch (pr->status) {
case CMD_PARSE_EMPTY: case CMD_PARSE_EMPTY:
new_item = NULL;
break; break;
case CMD_PARSE_ERROR: case CMD_PARSE_ERROR:
new_item = cmdq_get_error(pr->error); if (cdata->item != NULL)
cmdq_error(cdata->item, "%s", pr->error);
free(pr->error); free(pr->error);
break; break;
case CMD_PARSE_SUCCESS: case CMD_PARSE_SUCCESS:

View File

@@ -56,62 +56,6 @@ cmd_list_move(struct cmd_list *cmdlist, struct cmd_list *from)
cmdlist->group = cmd_list_next_group++; cmdlist->group = cmd_list_next_group++;
} }
struct cmd_list *
cmd_list_parse(int argc, char **argv, const char *file, u_int line,
char **cause)
{
struct cmd_list *cmdlist;
struct cmd *cmd;
int i, lastsplit;
size_t arglen, new_argc;
char **copy_argv, **new_argv;
copy_argv = cmd_copy_argv(argc, argv);
cmdlist = cmd_list_new();
lastsplit = 0;
for (i = 0; i < argc; i++) {
arglen = strlen(copy_argv[i]);
if (arglen == 0 || copy_argv[i][arglen - 1] != ';')
continue;
copy_argv[i][arglen - 1] = '\0';
if (arglen > 1 && copy_argv[i][arglen - 2] == '\\') {
copy_argv[i][arglen - 2] = ';';
continue;
}
new_argc = i - lastsplit;
new_argv = copy_argv + lastsplit;
if (arglen != 1)
new_argc++;
cmd = cmd_parse(new_argc, new_argv, file, line, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
lastsplit = i + 1;
}
if (lastsplit != argc) {
cmd = cmd_parse(argc - lastsplit, copy_argv + lastsplit,
file, line, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
}
cmd_free_argv(argc, copy_argv);
return (cmdlist);
bad:
cmd_list_free(cmdlist);
cmd_free_argv(argc, copy_argv);
return (NULL);
}
void void
cmd_list_free(struct cmd_list *cmdlist) cmd_list_free(struct cmd_list *cmdlist)
{ {

View File

@@ -541,34 +541,21 @@ cmd_parse_run_parser(FILE *f, struct cmd_parse_input *pi, char **cause)
return (cmds); return (cmds);
} }
struct cmd_parse_result * static struct cmd_parse_result *
cmd_parse_from_file(FILE *f, struct cmd_parse_input *pi) cmd_parse_build_commands(struct cmd_parse_commands *cmds,
struct cmd_parse_input *pi)
{ {
static struct cmd_parse_result pr; static struct cmd_parse_result pr;
struct cmd_parse_input input; struct cmd_parse_commands *cmds2;
struct cmd_parse_commands *cmds, *cmds2;
struct cmd_parse_command *cmd, *cmd2, *next, *next2, *after; struct cmd_parse_command *cmd, *cmd2, *next, *next2, *after;
FILE *f;
u_int line = UINT_MAX; u_int line = UINT_MAX;
int i; int i;
struct cmd_list *cmdlist = NULL, *result; struct cmd_list *cmdlist = NULL, *result;
struct cmd *add; struct cmd *add;
char *alias, *cause, *s; char *alias, *cause, *s;
if (pi == NULL) { /* Check for an empty list. */
memset(&input, 0, sizeof input);
pi = &input;
}
memset(&pr, 0, sizeof pr);
/*
* Parse the file into a list of commands.
*/
cmds = cmd_parse_run_parser(f, pi, &cause);
if (cmds == NULL) {
pr.status = CMD_PARSE_ERROR;
pr.error = cause;
return (&pr);
}
if (TAILQ_EMPTY(cmds)) { if (TAILQ_EMPTY(cmds)) {
free(cmds); free(cmds);
pr.status = CMD_PARSE_EMPTY; pr.status = CMD_PARSE_EMPTY;
@@ -677,13 +664,46 @@ out:
return (&pr); return (&pr);
} }
struct cmd_parse_result *
cmd_parse_from_file(FILE *f, struct cmd_parse_input *pi)
{
static struct cmd_parse_result pr;
struct cmd_parse_input input;
struct cmd_parse_commands *cmds;
char *cause;
if (pi == NULL) {
memset(&input, 0, sizeof input);
pi = &input;
}
memset(&pr, 0, sizeof pr);
/*
* Parse the file into a list of commands.
*/
cmds = cmd_parse_run_parser(f, pi, &cause);
if (cmds == NULL) {
pr.status = CMD_PARSE_ERROR;
pr.error = cause;
return (&pr);
}
return (cmd_parse_build_commands(cmds, pi));
}
struct cmd_parse_result * struct cmd_parse_result *
cmd_parse_from_string(const char *s, struct cmd_parse_input *pi) cmd_parse_from_string(const char *s, struct cmd_parse_input *pi)
{ {
static struct cmd_parse_result pr; static struct cmd_parse_result pr;
struct cmd_parse_result *prp; struct cmd_parse_result *prp;
struct cmd_parse_input input;
FILE *f; FILE *f;
if (pi == NULL) {
memset(&input, 0, sizeof input);
pi = &input;
}
memset(&pr, 0, sizeof pr);
if (*s == '\0') { if (*s == '\0') {
pr.status = CMD_PARSE_EMPTY; pr.status = CMD_PARSE_EMPTY;
pr.cmdlist = NULL; pr.cmdlist = NULL;
@@ -703,6 +723,84 @@ cmd_parse_from_string(const char *s, struct cmd_parse_input *pi)
return (prp); return (prp);
} }
struct cmd_parse_result *
cmd_parse_from_arguments(int argc, char **argv, struct cmd_parse_input *pi)
{
struct cmd_parse_input input;
struct cmd_parse_commands *cmds;
struct cmd_parse_command *cmd;
char **copy, **new_argv;
size_t size;
int i, last, new_argc;
/*
* The commands are already split up into arguments, so just separate
* into a set of commands by ';'.
*/
if (pi == NULL) {
memset(&input, 0, sizeof input);
pi = &input;
}
cmd_log_argv(argc, argv, "%s", __func__);
cmds = xmalloc(sizeof *cmds);
TAILQ_INIT(cmds);
copy = cmd_copy_argv(argc, argv);
last = 0;
for (i = 0; i < argc; i++) {
size = strlen(copy[i]);
if (size == 0 || copy[i][size - 1] != ';')
continue;
copy[i][--size] = '\0';
if (size > 0 && copy[i][size - 1] == '\\') {
copy[i][size - 1] = ';';
continue;
}
new_argc = i - last;
new_argv = copy + last;
if (size != 0)
new_argc++;
if (new_argc != 0) {
cmd_log_argv(new_argc, new_argv, "%s: at %u", __func__,
i);
cmd = xcalloc(1, sizeof *cmd);
cmd->name = xstrdup(new_argv[0]);
cmd->line = pi->line;
cmd->argc = new_argc - 1;
cmd->argv = cmd_copy_argv(new_argc - 1, new_argv + 1);
TAILQ_INSERT_TAIL(cmds, cmd, entry);
}
last = i + 1;
}
if (last != argc) {
new_argv = copy + last;
new_argc = argc - last;
if (new_argc != 0) {
cmd_log_argv(new_argc, new_argv, "%s: at %u", __func__,
last);
cmd = xcalloc(1, sizeof *cmd);
cmd->name = xstrdup(new_argv[0]);
cmd->line = pi->line;
cmd->argc = new_argc - 1;
cmd->argv = cmd_copy_argv(new_argc - 1, new_argv + 1);
TAILQ_INSERT_TAIL(cmds, cmd, entry);
}
}
return (cmd_parse_build_commands(cmds, pi));
}
static int printflike(1, 2) static int printflike(1, 2)
yyerror(const char *fmt, ...) yyerror(const char *fmt, ...)
{ {

View File

@@ -32,11 +32,14 @@ static struct cmdq_list global_queue = TAILQ_HEAD_INITIALIZER(global_queue);
static const char * static const char *
cmdq_name(struct client *c) cmdq_name(struct client *c)
{ {
static char s[32]; static char s[256];
if (c == NULL) if (c == NULL)
return ("<global>"); return ("<global>");
xsnprintf(s, sizeof s, "<%p>", c); if (c->name != NULL)
xsnprintf(s, sizeof s, "<%s>", c->name);
else
xsnprintf(s, sizeof s, "<%p>", c);
return (s); return (s);
} }

25
cmd.c
View File

@@ -204,13 +204,20 @@ const struct cmd_entry *cmd_table[] = {
NULL NULL
}; };
void void printflike(3, 4)
cmd_log_argv(int argc, char **argv, const char *prefix) cmd_log_argv(int argc, char **argv, const char *fmt, ...)
{ {
int i; char *prefix;
va_list ap;
int i;
va_start(ap, fmt);
xvasprintf(&prefix, fmt, ap);
va_end(ap);
for (i = 0; i < argc; i++) for (i = 0; i < argc; i++)
log_debug("%s: argv[%d]=%s", prefix, i, argv[i]); log_debug("%s: argv[%d]=%s", prefix, i, argv[i]);
free(prefix);
} }
void void
@@ -244,7 +251,7 @@ cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
if (argc == 0) if (argc == 0)
return (0); return (0);
cmd_log_argv(argc, argv, __func__); cmd_log_argv(argc, argv, "%s", __func__);
*buf = '\0'; *buf = '\0';
for (i = 0; i < argc; i++) { for (i = 0; i < argc; i++) {
@@ -281,7 +288,7 @@ cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
buf += arglen; buf += arglen;
len -= arglen; len -= arglen;
} }
cmd_log_argv(argc, *argv, __func__); cmd_log_argv(argc, *argv, "%s", __func__);
return (0); return (0);
} }
@@ -373,9 +380,9 @@ cmd_get_alias(const char *name)
static const struct cmd_entry * static const struct cmd_entry *
cmd_find(const char *name, char **cause) cmd_find(const char *name, char **cause)
{ {
const struct cmd_entry **loop, *entry, *found = NULL; const struct cmd_entry **loop, *entry, *found = NULL;
int ambiguous; int ambiguous;
char s[BUFSIZ]; char s[BUFSIZ];
ambiguous = 0; ambiguous = 0;
for (loop = cmd_table; *loop != NULL; loop++) { for (loop = cmd_table; *loop != NULL; loop++) {
@@ -436,7 +443,7 @@ cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
entry = cmd_find(name, cause); entry = cmd_find(name, cause);
if (entry == NULL) if (entry == NULL)
return (NULL); return (NULL);
cmd_log_argv(argc, argv, entry->name); cmd_log_argv(argc, argv, "%s: %s", __func__, entry->name);
args = args_parse(entry->args.template, argc, argv); args = args_parse(entry->args.template, argc, argv);
if (args == NULL) if (args == NULL)

View File

@@ -1152,13 +1152,13 @@ format_build_modifiers(struct format_tree *ft, const char **s, u_int *count)
/* /*
* Modifiers are a ; separated list of the forms: * Modifiers are a ; separated list of the forms:
* l,m,C,b,d,t,q,E,T,S,W,P * l,m,C,b,d,t,q,E,T,S,W,P,<,>
* =a * =a
* =/a * =/a
* =/a/ * =/a/
* s/a/b/ * s/a/b/
* s/a/b * s/a/b
* ||,&&,!=,== * ||,&&,!=,==,<=,>=
*/ */
*count = 0; *count = 0;
@@ -1169,7 +1169,7 @@ format_build_modifiers(struct format_tree *ft, const char **s, u_int *count)
cp++; cp++;
/* Check single character modifiers with no arguments. */ /* Check single character modifiers with no arguments. */
if (strchr("lmCbdtqETSWP", cp[0]) != NULL && if (strchr("lmCbdtqETSWP<>", cp[0]) != NULL &&
format_is_end(cp[1])) { format_is_end(cp[1])) {
format_add_modifier(&list, count, cp, 1, NULL, 0); format_add_modifier(&list, count, cp, 1, NULL, 0);
cp++; cp++;
@@ -1180,7 +1180,9 @@ format_build_modifiers(struct format_tree *ft, const char **s, u_int *count)
if ((memcmp("||", cp, 2) == 0 || if ((memcmp("||", cp, 2) == 0 ||
memcmp("&&", cp, 2) == 0 || memcmp("&&", cp, 2) == 0 ||
memcmp("!=", cp, 2) == 0 || memcmp("!=", cp, 2) == 0 ||
memcmp("==", cp, 2) == 0) && memcmp("==", cp, 2) == 0 ||
memcmp("<=", cp, 2) == 0 ||
memcmp(">=", cp, 2) == 0) &&
format_is_end(cp[2])) { format_is_end(cp[2])) {
format_add_modifier(&list, count, cp, 2, NULL, 0); format_add_modifier(&list, count, cp, 2, NULL, 0);
cp += 2; cp += 2;
@@ -1449,6 +1451,8 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
if (fm->size == 1) { if (fm->size == 1) {
switch (fm->modifier[0]) { switch (fm->modifier[0]) {
case 'm': case 'm':
case '<':
case '>':
cmp = fm; cmp = fm;
break; break;
case 'C': case 'C':
@@ -1502,7 +1506,9 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
if (strcmp(fm->modifier, "||") == 0 || if (strcmp(fm->modifier, "||") == 0 ||
strcmp(fm->modifier, "&&") == 0 || strcmp(fm->modifier, "&&") == 0 ||
strcmp(fm->modifier, "==") == 0 || strcmp(fm->modifier, "==") == 0 ||
strcmp(fm->modifier, "!=") == 0) strcmp(fm->modifier, "!=") == 0 ||
strcmp(fm->modifier, ">=") == 0 ||
strcmp(fm->modifier, "<=") == 0)
cmp = fm; cmp = fm;
} }
} }
@@ -1565,8 +1571,27 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
value = xstrdup("1"); value = xstrdup("1");
else else
value = xstrdup("0"); value = xstrdup("0");
} } else if (strcmp(cmp->modifier, "<") == 0) {
else if (strcmp(cmp->modifier, "m") == 0) { if (strcmp(left, right) < 0)
value = xstrdup("1");
else
value = xstrdup("0");
} else if (strcmp(cmp->modifier, ">") == 0) {
if (strcmp(left, right) > 0)
value = xstrdup("1");
else
value = xstrdup("0");
} else if (strcmp(cmp->modifier, "<=") == 0) {
if (strcmp(left, right) <= 0)
value = xstrdup("1");
else
value = xstrdup("0");
} else if (strcmp(cmp->modifier, ">=") == 0) {
if (strcmp(left, right) >= 0)
value = xstrdup("1");
else
value = xstrdup("0");
} else if (strcmp(cmp->modifier, "m") == 0) {
if (fnmatch(left, right, 0) == 0) if (fnmatch(left, right, 0) == 0)
value = xstrdup("1"); value = xstrdup("1");
else else

View File

@@ -1785,9 +1785,9 @@ server_client_dispatch_command(struct client *c, struct imsg *imsg)
struct msg_command_data data; struct msg_command_data data;
char *buf; char *buf;
size_t len; size_t len;
struct cmd_list *cmdlist = NULL;
int argc; int argc;
char **argv, *cause; char **argv, *cause;
struct cmd_parse_result *pr;
if (c->flags & CLIENT_EXIT) if (c->flags & CLIENT_EXIT)
return; return;
@@ -1813,24 +1813,31 @@ server_client_dispatch_command(struct client *c, struct imsg *imsg)
*argv = xstrdup("new-session"); *argv = xstrdup("new-session");
} }
if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) { pr = cmd_parse_from_arguments(argc, argv, NULL);
cmd_free_argv(argc, argv); switch (pr->status) {
case CMD_PARSE_EMPTY:
cause = xstrdup("empty command");
goto error; goto error;
case CMD_PARSE_ERROR:
cause = pr->error;
goto error;
case CMD_PARSE_SUCCESS:
break;
} }
cmd_free_argv(argc, argv); cmd_free_argv(argc, argv);
cmdq_append(c, cmdq_get_command(cmdlist, NULL, NULL, 0)); cmdq_append(c, cmdq_get_command(pr->cmdlist, NULL, NULL, 0));
cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL)); cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL));
cmd_list_free(cmdlist);
cmd_list_free(pr->cmdlist);
return; return;
error: error:
cmd_free_argv(argc, argv);
cmdq_append(c, cmdq_get_error(cause)); cmdq_append(c, cmdq_get_error(cause));
free(cause); free(cause);
if (cmdlist != NULL)
cmd_list_free(cmdlist);
c->flags |= CLIENT_EXIT; c->flags |= CLIENT_EXIT;
} }

View File

@@ -327,7 +327,7 @@ spawn_pane(struct spawn_context *sc, char **cause)
} }
if (cwd != NULL) if (cwd != NULL)
log_debug("%s: cwd=%s", __func__, cwd); log_debug("%s: cwd=%s", __func__, cwd);
cmd_log_argv(new_wp->argc, new_wp->argv, __func__); cmd_log_argv(new_wp->argc, new_wp->argv, "%s", __func__);
environ_log(child, "%s: environment ", __func__); environ_log(child, "%s: environment ", __func__);
/* If the command is empty, don't fork a child process. */ /* If the command is empty, don't fork a child process. */

8
tmux.1
View File

@@ -3951,9 +3951,13 @@ For example:
.Pp .Pp
Comparisons may be expressed by prefixing two comma-separated Comparisons may be expressed by prefixing two comma-separated
alternatives by alternatives by
.Ql == .Ql == ,
.Ql != ,
.Ql < ,
.Ql > ,
.Ql <=
or or
.Ql != .Ql >=
and a colon. and a colon.
For example For example
.Ql #{==:#{host},myhost} .Ql #{==:#{host},myhost}

5
tmux.h
View File

@@ -1989,7 +1989,7 @@ int cmd_find_from_mouse(struct cmd_find_state *,
int cmd_find_from_nothing(struct cmd_find_state *, int); int cmd_find_from_nothing(struct cmd_find_state *, int);
/* cmd.c */ /* cmd.c */
void cmd_log_argv(int, char **, const char *); void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
void cmd_prepend_argv(int *, char ***, char *); void cmd_prepend_argv(int *, char ***, char *);
void cmd_append_argv(int *, char ***, char *); void cmd_append_argv(int *, char ***, char *);
int cmd_pack_argv(int, char **, char *, size_t); int cmd_pack_argv(int, char **, char *, size_t);
@@ -2018,12 +2018,13 @@ void cmd_parse_empty(struct cmd_parse_input *);
struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *); struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
struct cmd_parse_result *cmd_parse_from_string(const char *, struct cmd_parse_result *cmd_parse_from_string(const char *,
struct cmd_parse_input *); struct cmd_parse_input *);
struct cmd_parse_result *cmd_parse_from_arguments(int, char **,
struct cmd_parse_input *);
/* cmd-list.c */ /* cmd-list.c */
struct cmd_list *cmd_list_new(void); struct cmd_list *cmd_list_new(void);
void cmd_list_append(struct cmd_list *, struct cmd *); void cmd_list_append(struct cmd_list *, struct cmd *);
void cmd_list_move(struct cmd_list *, struct cmd_list *); void cmd_list_move(struct cmd_list *, struct cmd_list *);
struct cmd_list *cmd_list_parse(int, char **, const char *, u_int, char **);
void cmd_list_free(struct cmd_list *); void cmd_list_free(struct cmd_list *);
char *cmd_list_print(struct cmd_list *, int); char *cmd_list_print(struct cmd_list *, int);