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Diffstat (limited to 'toys/pending/find.c')
-rw-r--r--toys/pending/find.c165
1 files changed, 53 insertions, 112 deletions
diff --git a/toys/pending/find.c b/toys/pending/find.c
index 9728090b..d6572ff8 100644
--- a/toys/pending/find.c
+++ b/toys/pending/find.c
@@ -26,8 +26,13 @@ config FIND
* -exec action
*/
+#define FOR_find
#include "toys.h"
+GLOBALS(
+ char *dir;
+)
+
#define SECONDS_PER_DAY (24*60*60)
int have_action;
@@ -77,34 +82,23 @@ static struct filter_node *filter_root;
*/
static int do_exec(struct filter_node *filter, struct dirtree *node)
{
- char *path;
+ char *path = NULL;
int plen;
char **arg_array;
pid_t pid;
- int ccode;
int status;
arg_array = filter->data.e.exec_args;
if (filter->data.e.arg_path_index) {
path = dirtree_path(node, &plen);
arg_array[filter->data.e.arg_path_index] = path;
- } else {
- path = NULL;
}
- pid = fork();
- if (!pid) {
- /* child */
- xexec(arg_array);
- } else {
- /* parent */
- /* wait for child */
- waitpid(pid, &status, 0);
- ccode = WEXITSTATUS(status);
- }
+ if (!(pid = fork())) xexec(arg_array);
free(path);
+ waitpid(pid, &status, 0);
- return ccode;
+ return WEXITSTATUS(status);
}
/* prefix evaluator */
@@ -125,45 +119,41 @@ static int evaluate(struct filter_node *filter, struct dirtree *node,
return 1;
}
- if (filter->op==OP_NOT) {
- return !evaluate(filter->next, node, fnext);
- }
- if (filter->op==OP_OR) {
+ if (filter->op==OP_NOT) return !evaluate(filter->next, node, fnext);
+
+ if (filter->op==OP_OR)
return evaluate(filter->next, node, fnext) || evaluate(*fnext, node, fnext);
- }
- if (filter->op==OP_AND) {
+
+ if (filter->op==OP_AND)
return evaluate(filter->next, node, fnext) && evaluate(*fnext, node, fnext);
- }
- /* we're down to single operations, mark our position */
+
+ // we're down to single operations, mark our position
*fnext = filter->next;
- if (filter->op==CHECK_NAME) {
- // TODO: Do a regex comparison
+
+ // TODO: Do a regex comparison
+ if (filter->op==CHECK_NAME)
return !strcmp(filter->data.name_regex, node->name);
- }
+
if (filter->op==CHECK_MTIME) {
- /* do mtime check */
+ // do mtime check
path = dirtree_path(node, &plen);
result = stat(path, &st_buf);
free(path);
- if (result<0) {
- return 0;
- }
+ if (result<0) return 0;
+
node_time = st_buf.st_mtime/SECONDS_PER_DAY;
result = 1;
switch (filter->data.t.time_op) {
/* do time compare here */
case TEST_LT:
/* FIXTHIS - should result be < or <= ?*/
- if (node_time > filter->data.t.time)
- result = 0;
+ if (node_time > filter->data.t.time) result = 0;
break;
case TEST_GT:
- if (node_time < filter->data.t.time)
- result = 0;
+ if (node_time < filter->data.t.time) result = 0;
break;
case TEST_EQ:
- if (node_time != filter->data.t.time)
- result = 0;
+ if (node_time != filter->data.t.time) result = 0;
break;
default:
/* how'd I get here? */
@@ -177,28 +167,22 @@ static int evaluate(struct filter_node *filter, struct dirtree *node,
path = dirtree_path(node, &plen);
result = lstat(path, &st_buf);
free(path);
- if (result<0) {
- return 0;
- }
+ if (result<0) return 0;
return (st_buf.st_mode & S_IFMT) == filter->data.type;
}
if (filter->op==ACTION_PRINT || filter->op==ACTION_PRINT0) {
- if (filter->op==ACTION_PRINT) {
- terminator = '\n';
- } else {
- terminator = 0;
- }
+ terminator = (filter->op==ACTION_PRINT)*'\n';
+
path = dirtree_path(node, &plen);
printf("%s%c", path, terminator);
free(path);
return 1;
}
- if (filter->op==ACTION_EXEC) {
- return !do_exec(filter, node);
- }
+ if (filter->op==ACTION_EXEC) return !do_exec(filter, node);
+
error_msg("Ran out of operations in filter list!");
return 1;
}
@@ -231,51 +215,37 @@ static int check_node_callback(struct dirtree *node)
static void build_filter_list(void)
{
- struct filter_node *node_list;
- struct filter_node *op_stack;
- struct filter_node *node, *op_node;
- struct filter_node *next;
-
+ struct filter_node *node_list, *op_stack, *node, *op_node, *next;
char *arg, **arg_array;
int i, j;
/* part optargs here and build a filter list in prefix format */
+ TT.dir = ".";
node_list = NULL;
- toybuf[0] = 0;
have_action = 0;
for(i=0; toys.optargs[i]; i++) {
node = (struct filter_node *)
xmalloc(sizeof(struct filter_node));
node->op = OP_UNKNOWN;
arg = toys.optargs[i];
- if (!strcmp(arg, "-o")) {
- node->op = OP_OR;
- }
- if (!strcmp(arg, "-a")) {
- node->op = OP_AND;
- }
- if (!strcmp(arg, "!")) {
- node->op = OP_NOT;
- }
- if (!strcmp(arg, "(")) {
- node->op = LPAREN;
- }
- if (!strcmp(arg, ")")) {
- node->op = RPAREN;
- }
+ if (!strcmp(arg, "-o")) node->op = OP_OR;
+ if (!strcmp(arg, "-a")) node->op = OP_AND;
+ if (!strcmp(arg, "!")) node->op = OP_NOT;
+ if (!strcmp(arg, "(")) node->op = LPAREN;
+ if (!strcmp(arg, ")")) node->op = RPAREN;
if (!strcmp(arg, "-name")) {
node->op = CHECK_NAME;
arg = toys.optargs[++i];
- if (!arg) error_exit("Missing argument to -name\n");
+ if (!arg) error_exit("Missing argument to -name");
node->data.name_regex = arg;
}
if (!strcmp(arg, "-mtime")) {
node->op = CHECK_MTIME;
arg = toys.optargs[++i];
- if (!arg) error_exit("Missing argument to -mtime\n");
+ if (!arg) error_exit("Missing argument to -mtime");
switch(arg[0]) {
case '+':
node->data.t.time_op=TEST_GT;
@@ -294,35 +264,15 @@ static void build_filter_list(void)
}
if (!strcmp(arg, "-type")) {
+ mode_t types[]={S_IFREG,S_IFDIR,S_IFCHR,S_IFBLK,S_IFLNK,S_IFSOCK,S_IFIFO};
+ int j;
+
node->op = CHECK_TYPE;
arg = toys.optargs[++i];
- if (!arg) error_exit("Missing argument to -type\n");
- switch(arg[0]) {
- case 'f':
- node->data.type = S_IFREG;
- break;
- case 'd':
- node->data.type = S_IFDIR;
- break;
- case 'c':
- node->data.type = S_IFCHR;
- break;
- case 'b':
- node->data.type = S_IFBLK;
- break;
- case 'l':
- node->data.type = S_IFLNK;
- break;
- case 's':
- node->data.type = S_IFSOCK;
- break;
- case 'p':
- /* named pipe */
- node->data.type = S_IFIFO;
- break;
- default:
- error_exit("Unknown file type '%s'\n", arg);
- }
+ if (!arg) error_exit("Missing argument to -type");
+ if (-1 == (j = stridx("fdcblsp", *arg)))
+ error_exit("bad type '%s'", arg);
+ else node->data.type = types[j];
}
if (!strcmp(arg, "-print")) {
node->op = ACTION_PRINT;
@@ -341,22 +291,17 @@ static void build_filter_list(void)
/* new method */
arg_array = xrealloc(arg_array, sizeof(char *) * (j+2));
arg_array[j] = arg;
- if (!strcmp(arg, "{}")) {
- node->data.e.arg_path_index = j;
- }
+ if (!strcmp(arg, "{}")) node->data.e.arg_path_index = j;
arg = toys.optargs[++i];
}
- if (!arg) error_exit("Missing ';' in exec command\n");
+ if (!arg) error_exit("need ';' in exec");
arg_array[j] = 0;
node->data.e.exec_args = arg_array;
}
if (node->op == OP_UNKNOWN) {
- if (arg[0] == '-') error_exit("Unknown option '%s'\n", arg);
- else {
- /* use toybuf as start directory */
- strcpy(toybuf, arg);
- }
+ if (arg[0] == '-') error_exit("bad option '%s'", arg);
+ else TT.dir = arg;
} else {
/* push node */
node->next = node_list;;
@@ -394,7 +339,7 @@ static void build_filter_list(void)
op_node = op_stack;
}
/* rparen should be on op_stack */
- if (!op_stack) error_exit("Missing right paren\n");
+ if (!op_stack) error_exit("need ')'");
/* remove rparen from op_stack */
op_stack = op_stack->next;
free(op_node);
@@ -425,13 +370,9 @@ static void build_filter_list(void)
void find_main(void)
{
/* parse filters, if present */
- /* also, fill toybuf with the directory to start in, if present */
build_filter_list();
/* FIXTHIS - parse actions, if present */
- if (!toybuf[0]) {
- strcpy(toybuf, ".");
- }
- dirtree_read(toybuf, check_node_callback);
+ dirtree_read(TT.dir, check_node_callback);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 22:16:50 +0000