更好的管道

This commit is contained in:
2026-04-16 21:50:56 +08:00
parent 4eae6c34c4
commit 2d843a100e
10 changed files with 2172 additions and 3 deletions

269
cleonos/c/apps/cut_main.c Normal file
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@@ -0,0 +1,269 @@
#include "cmd_runtime.h"
static int ush_cut_parse_delim(const char *token, char *out_delim) {
if (token == (const char *)0 || out_delim == (char *)0) {
return 0;
}
if (token[0] == '\\' && token[1] == 't' && token[2] == '\0') {
*out_delim = '\t';
return 1;
}
if (token[0] == '\0' || token[1] != '\0') {
return 0;
}
*out_delim = token[0];
return 1;
}
static int ush_cut_parse_args(const char *arg,
char *out_delim,
u64 *out_field,
char *out_file,
u64 out_file_size) {
char token[USH_PATH_MAX];
char value[USH_PATH_MAX];
const char *cursor = arg;
const char *rest = "";
int delim_set = 0;
int field_set = 0;
int file_set = 0;
u64 parsed_field = 0ULL;
if (out_delim == (char *)0 || out_field == (u64 *)0 || out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
*out_delim = ',';
*out_field = 1ULL;
out_file[0] = '\0';
if (cursor == (const char *)0 || cursor[0] == '\0') {
return 0;
}
while (cursor != (const char *)0 && cursor[0] != '\0') {
if (ush_split_first_and_rest(cursor, token, (u64)sizeof(token), &rest) == 0) {
return 0;
}
if (ush_streq(token, "-d") != 0) {
if (ush_split_first_and_rest(rest, value, (u64)sizeof(value), &cursor) == 0) {
return 0;
}
if (ush_cut_parse_delim(value, out_delim) == 0) {
return 0;
}
delim_set = 1;
continue;
}
if (ush_streq(token, "-f") != 0) {
if (ush_split_first_and_rest(rest, value, (u64)sizeof(value), &cursor) == 0) {
return 0;
}
if (ush_parse_u64_dec(value, &parsed_field) == 0 || parsed_field == 0ULL) {
return 0;
}
*out_field = parsed_field;
field_set = 1;
continue;
}
if (token[0] == '-') {
return 0;
}
if (file_set != 0) {
return 0;
}
ush_copy(out_file, out_file_size, token);
file_set = 1;
cursor = rest;
}
return (delim_set != 0 && field_set != 0) ? 1 : 0;
}
static int ush_cut_load_input(const ush_state *sh, const char *file_arg, const char **out_input, u64 *out_input_len) {
static char file_buf[USH_COPY_MAX + 1U];
char path[USH_PATH_MAX];
u64 size;
u64 got;
if (sh == (const ush_state *)0 || out_input == (const char **)0 || out_input_len == (u64 *)0) {
return 0;
}
*out_input = (const char *)0;
*out_input_len = 0ULL;
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_writeln("cut: invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_writeln("cut: file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_writeln("cut: failed to stat file");
return 0;
}
if (size > (u64)USH_COPY_MAX) {
ush_writeln("cut: file too large for user buffer");
return 0;
}
if (size == 0ULL) {
file_buf[0] = '\0';
*out_input = file_buf;
*out_input_len = 0ULL;
return 1;
}
got = cleonos_sys_fs_read(path, file_buf, size);
if (got == 0ULL || got != size) {
ush_writeln("cut: read failed");
return 0;
}
file_buf[got] = '\0';
*out_input = file_buf;
*out_input_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_writeln("cut: file path required (or pipeline input)");
return 0;
}
*out_input = ush_pipeline_stdin_text;
*out_input_len = ush_pipeline_stdin_len;
return 1;
}
static void ush_cut_emit_field(const char *line, u64 line_len, char delim, u64 field_index) {
u64 pos;
u64 current_field = 1ULL;
u64 field_start = 0ULL;
int emitted = 0;
for (pos = 0ULL; pos <= line_len; pos++) {
if (pos == line_len || line[pos] == delim) {
if (current_field == field_index) {
u64 j;
for (j = field_start; j < pos; j++) {
ush_write_char(line[j]);
}
emitted = 1;
break;
}
current_field++;
field_start = pos + 1ULL;
}
}
if (emitted == 0) {
/* keep empty line */
}
ush_write_char('\n');
}
static int ush_cmd_cut(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
char delim = ',';
u64 field_index = 1ULL;
u64 i;
u64 start = 0ULL;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_cut_parse_args(arg, &delim, &field_index, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("cut: usage cut -d <char> -f <N> [file]");
return 0;
}
if (ush_cut_load_input(sh, file_arg, &input, &input_len) == 0) {
return 0;
}
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n') {
ush_cut_emit_field(&input[start], i - start, delim, field_index);
start = i + 1ULL;
}
}
if (start < input_len) {
ush_cut_emit_field(&input[start], input_len - start, delim, field_index);
}
return 1;
}
int cleonos_app_main(void) {
ush_cmd_ctx ctx;
ush_cmd_ret ret;
ush_state sh;
char initial_cwd[USH_PATH_MAX];
int has_context = 0;
int success = 0;
const char *arg = "";
ush_zero(&ctx, (u64)sizeof(ctx));
ush_zero(&ret, (u64)sizeof(ret));
ush_init_state(&sh);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
if (ush_command_ctx_read(&ctx) != 0) {
if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "cut") != 0) {
has_context = 1;
arg = ctx.arg;
if (ctx.cwd[0] == '/') {
ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
}
}
}
success = ush_cmd_cut(&sh, arg);
if (has_context != 0) {
if (ush_streq(sh.cwd, initial_cwd) == 0) {
ret.flags |= USH_CMD_RET_FLAG_CWD;
ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
}
if (sh.exit_requested != 0) {
ret.flags |= USH_CMD_RET_FLAG_EXIT;
ret.exit_code = sh.exit_code;
}
(void)ush_command_ret_write(&ret);
}
return (success != 0) ? 0 : 1;
}

210
cleonos/c/apps/head_main.c Normal file
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@@ -0,0 +1,210 @@
#include "cmd_runtime.h"
static int ush_head_parse_args(const char *arg, u64 *out_line_count, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
char second[USH_PATH_MAX];
char third[USH_PATH_MAX];
const char *rest = "";
const char *rest2 = "";
if (out_line_count == (u64 *)0 || out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
*out_line_count = 10ULL;
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (ush_streq(first, "-n") != 0) {
if (ush_split_first_and_rest(rest, second, (u64)sizeof(second), &rest2) == 0) {
return 0;
}
if (ush_parse_u64_dec(second, out_line_count) == 0) {
return 0;
}
if (rest2 != (const char *)0 && rest2[0] != '\0') {
if (ush_split_first_and_rest(rest2, third, (u64)sizeof(third), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, third);
}
return 1;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_head_load_input(const ush_state *sh, const char *file_arg, const char **out_input, u64 *out_input_len) {
static char file_buf[USH_COPY_MAX + 1U];
char path[USH_PATH_MAX];
u64 size;
u64 got;
if (sh == (const ush_state *)0 || out_input == (const char **)0 || out_input_len == (u64 *)0) {
return 0;
}
*out_input = (const char *)0;
*out_input_len = 0ULL;
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_writeln("head: invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_writeln("head: file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_writeln("head: failed to stat file");
return 0;
}
if (size > (u64)USH_COPY_MAX) {
ush_writeln("head: file too large for user buffer");
return 0;
}
if (size == 0ULL) {
file_buf[0] = '\0';
*out_input = file_buf;
*out_input_len = 0ULL;
return 1;
}
got = cleonos_sys_fs_read(path, file_buf, size);
if (got == 0ULL || got != size) {
ush_writeln("head: read failed");
return 0;
}
file_buf[got] = '\0';
*out_input = file_buf;
*out_input_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_writeln("head: file path required (or pipeline input)");
return 0;
}
*out_input = ush_pipeline_stdin_text;
*out_input_len = ush_pipeline_stdin_len;
return 1;
}
static void ush_head_emit(const char *input, u64 input_len, u64 line_count) {
u64 i;
u64 emitted = 0ULL;
if (input == (const char *)0 || line_count == 0ULL) {
return;
}
for (i = 0ULL; i < input_len; i++) {
if (emitted >= line_count) {
break;
}
ush_write_char(input[i]);
if (input[i] == '\n') {
emitted++;
}
}
}
static int ush_cmd_head(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
u64 line_count;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_head_parse_args(arg, &line_count, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("head: usage head [-n N] [file]");
return 0;
}
if (ush_head_load_input(sh, file_arg, &input, &input_len) == 0) {
return 0;
}
ush_head_emit(input, input_len, line_count);
return 1;
}
int cleonos_app_main(void) {
ush_cmd_ctx ctx;
ush_cmd_ret ret;
ush_state sh;
char initial_cwd[USH_PATH_MAX];
int has_context = 0;
int success = 0;
const char *arg = "";
ush_zero(&ctx, (u64)sizeof(ctx));
ush_zero(&ret, (u64)sizeof(ret));
ush_init_state(&sh);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
if (ush_command_ctx_read(&ctx) != 0) {
if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "head") != 0) {
has_context = 1;
arg = ctx.arg;
if (ctx.cwd[0] == '/') {
ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
}
}
}
success = ush_cmd_head(&sh, arg);
if (has_context != 0) {
if (ush_streq(sh.cwd, initial_cwd) == 0) {
ret.flags |= USH_CMD_RET_FLAG_CWD;
ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
}
if (sh.exit_requested != 0) {
ret.flags |= USH_CMD_RET_FLAG_EXIT;
ret.exit_code = sh.exit_code;
}
(void)ush_command_ret_write(&ret);
}
return (success != 0) ? 0 : 1;
}

View File

@@ -5,6 +5,8 @@ static int ush_cmd_help(void) {
ush_writeln(" ls [-l] [-R] [path]");
ush_writeln(" cat [file] (reads pipeline input when file omitted)");
ush_writeln(" grep [-n] <pattern> [file]");
ush_writeln(" head [-n N] [file] / tail [-n N] [file]");
ush_writeln(" wc [file] / cut -d <char> -f <N> [file] / uniq [file] / sort [file]");
ush_writeln(" pwd");
ush_writeln(" cd [dir]");
ush_writeln(" exec|run <path|name>");

View File

@@ -5,6 +5,7 @@
#define USH_COPY_MAX 65536U
#define USH_PIPELINE_MAX_STAGES 8ULL
#define USH_PIPE_CAPTURE_MAX USH_COPY_MAX
#define USH_SORT_MAX_LINES 4096ULL
typedef struct ush_pipeline_stage {
char text[USH_LINE_MAX];
@@ -129,6 +130,8 @@ static int ush_cmd_help(void) {
ush_writeln(" ls [-l] [-R] [path]");
ush_writeln(" cat [file] (reads pipeline input when file omitted)");
ush_writeln(" grep [-n] <pattern> [file]");
ush_writeln(" head [-n N] [file] / tail [-n N] [file]");
ush_writeln(" wc [file] / cut -d <char> -f <N> [file] / uniq [file] / sort [file]");
ush_writeln(" pwd");
ush_writeln(" cd [dir]");
ush_writeln(" exec|run <path|name>");
@@ -714,6 +717,746 @@ static int ush_cmd_grep(const ush_state *sh, const char *arg) {
return 1;
}
static void ush_text_error(const char *cmd, const char *message) {
ush_write(cmd);
ush_write(": ");
ush_writeln(message);
}
static int ush_text_parse_optional_file(const char *arg, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
const char *rest = "";
if (out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_text_load_input(const ush_state *sh,
const char *cmd,
const char *file_arg,
const char **out_input,
u64 *out_input_len) {
static char file_buf[USH_COPY_MAX + 1U];
char path[USH_PATH_MAX];
u64 size;
u64 got;
if (sh == (const ush_state *)0 ||
cmd == (const char *)0 ||
out_input == (const char **)0 ||
out_input_len == (u64 *)0) {
return 0;
}
*out_input = (const char *)0;
*out_input_len = 0ULL;
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_text_error(cmd, "invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_text_error(cmd, "file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_text_error(cmd, "failed to stat file");
return 0;
}
if (size > (u64)USH_COPY_MAX) {
ush_text_error(cmd, "file too large for user buffer");
return 0;
}
if (size == 0ULL) {
file_buf[0] = '\0';
*out_input = file_buf;
*out_input_len = 0ULL;
return 1;
}
got = cleonos_sys_fs_read(path, file_buf, size);
if (got == 0ULL || got != size) {
ush_text_error(cmd, "read failed");
return 0;
}
file_buf[got] = '\0';
*out_input = file_buf;
*out_input_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_text_error(cmd, "file path required (or pipeline input)");
return 0;
}
*out_input = ush_pipeline_stdin_text;
*out_input_len = ush_pipeline_stdin_len;
return 1;
}
static int ush_head_parse_args(const char *arg, u64 *out_line_count, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
char second[USH_PATH_MAX];
char third[USH_PATH_MAX];
const char *rest = "";
const char *rest2 = "";
if (out_line_count == (u64 *)0 || out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
*out_line_count = 10ULL;
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (ush_streq(first, "-n") != 0) {
if (ush_split_first_and_rest(rest, second, (u64)sizeof(second), &rest2) == 0) {
return 0;
}
if (ush_parse_u64_dec(second, out_line_count) == 0) {
return 0;
}
if (rest2 != (const char *)0 && rest2[0] != '\0') {
if (ush_split_first_and_rest(rest2, third, (u64)sizeof(third), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, third);
}
return 1;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_cmd_head(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
u64 line_count;
u64 i;
u64 emitted = 0ULL;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_head_parse_args(arg, &line_count, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("head: usage head [-n N] [file]");
return 0;
}
if (line_count == 0ULL) {
return 1;
}
if (ush_text_load_input(sh, "head", file_arg, &input, &input_len) == 0) {
return 0;
}
for (i = 0ULL; i < input_len; i++) {
if (emitted >= line_count) {
break;
}
ush_write_char(input[i]);
if (input[i] == '\n') {
emitted++;
}
}
return 1;
}
static int ush_tail_parse_args(const char *arg, u64 *out_line_count, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
char second[USH_PATH_MAX];
char third[USH_PATH_MAX];
const char *rest = "";
const char *rest2 = "";
if (out_line_count == (u64 *)0 || out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
*out_line_count = 10ULL;
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (ush_streq(first, "-n") != 0) {
if (ush_split_first_and_rest(rest, second, (u64)sizeof(second), &rest2) == 0) {
return 0;
}
if (ush_parse_u64_dec(second, out_line_count) == 0) {
return 0;
}
if (rest2 != (const char *)0 && rest2[0] != '\0') {
if (ush_split_first_and_rest(rest2, third, (u64)sizeof(third), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, third);
}
return 1;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static u64 ush_tail_count_lines(const char *input, u64 input_len) {
u64 i;
u64 lines = 0ULL;
if (input == (const char *)0 || input_len == 0ULL) {
return 0ULL;
}
lines = 1ULL;
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n' && i + 1ULL < input_len) {
lines++;
}
}
return lines;
}
static u64 ush_tail_find_start_offset(const char *input, u64 input_len, u64 skip_lines) {
u64 i;
u64 lines_seen = 0ULL;
if (input == (const char *)0 || input_len == 0ULL || skip_lines == 0ULL) {
return 0ULL;
}
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n' && i + 1ULL < input_len) {
lines_seen++;
if (lines_seen == skip_lines) {
return i + 1ULL;
}
}
}
return input_len;
}
static int ush_cmd_tail(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
u64 line_count;
u64 total_lines;
u64 skip_lines;
u64 start_offset;
u64 i;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_tail_parse_args(arg, &line_count, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("tail: usage tail [-n N] [file]");
return 0;
}
if (line_count == 0ULL) {
return 1;
}
if (ush_text_load_input(sh, "tail", file_arg, &input, &input_len) == 0) {
return 0;
}
if (input_len == 0ULL) {
return 1;
}
total_lines = ush_tail_count_lines(input, input_len);
skip_lines = (total_lines > line_count) ? (total_lines - line_count) : 0ULL;
start_offset = ush_tail_find_start_offset(input, input_len, skip_lines);
for (i = start_offset; i < input_len; i++) {
ush_write_char(input[i]);
}
return 1;
}
static int ush_cmd_wc(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
u64 bytes = 0ULL;
u64 lines = 0ULL;
u64 words = 0ULL;
u64 i;
int in_word = 0;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_text_parse_optional_file(arg, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("wc: usage wc [file]");
return 0;
}
if (ush_text_load_input(sh, "wc", file_arg, &input, &input_len) == 0) {
return 0;
}
bytes = input_len;
for (i = 0ULL; i < input_len; i++) {
char ch = input[i];
if (ch == '\n') {
lines++;
}
if (ush_is_space(ch) != 0) {
in_word = 0;
} else if (in_word == 0) {
words++;
in_word = 1;
}
}
ush_grep_write_u64_dec(lines);
ush_write(" ");
ush_grep_write_u64_dec(words);
ush_write(" ");
ush_grep_write_u64_dec(bytes);
ush_write_char('\n');
return 1;
}
static int ush_cut_parse_delim(const char *token, char *out_delim) {
if (token == (const char *)0 || out_delim == (char *)0) {
return 0;
}
if (token[0] == '\\' && token[1] == 't' && token[2] == '\0') {
*out_delim = '\t';
return 1;
}
if (token[0] == '\0' || token[1] != '\0') {
return 0;
}
*out_delim = token[0];
return 1;
}
static int ush_cut_parse_args(const char *arg,
char *out_delim,
u64 *out_field,
char *out_file,
u64 out_file_size) {
char token[USH_PATH_MAX];
char value[USH_PATH_MAX];
const char *cursor = arg;
const char *rest = "";
int delim_set = 0;
int field_set = 0;
int file_set = 0;
u64 parsed_field = 0ULL;
if (out_delim == (char *)0 || out_field == (u64 *)0 || out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
*out_delim = ',';
*out_field = 1ULL;
out_file[0] = '\0';
if (cursor == (const char *)0 || cursor[0] == '\0') {
return 0;
}
while (cursor != (const char *)0 && cursor[0] != '\0') {
if (ush_split_first_and_rest(cursor, token, (u64)sizeof(token), &rest) == 0) {
return 0;
}
if (ush_streq(token, "-d") != 0) {
if (ush_split_first_and_rest(rest, value, (u64)sizeof(value), &cursor) == 0) {
return 0;
}
if (ush_cut_parse_delim(value, out_delim) == 0) {
return 0;
}
delim_set = 1;
continue;
}
if (ush_streq(token, "-f") != 0) {
if (ush_split_first_and_rest(rest, value, (u64)sizeof(value), &cursor) == 0) {
return 0;
}
if (ush_parse_u64_dec(value, &parsed_field) == 0 || parsed_field == 0ULL) {
return 0;
}
*out_field = parsed_field;
field_set = 1;
continue;
}
if (token[0] == '-') {
return 0;
}
if (file_set != 0) {
return 0;
}
ush_copy(out_file, out_file_size, token);
file_set = 1;
cursor = rest;
}
return (delim_set != 0 && field_set != 0) ? 1 : 0;
}
static void ush_cut_emit_field(const char *line, u64 line_len, char delim, u64 field_index) {
u64 pos;
u64 current_field = 1ULL;
u64 field_start = 0ULL;
for (pos = 0ULL; pos <= line_len; pos++) {
if (pos == line_len || line[pos] == delim) {
if (current_field == field_index) {
u64 j;
for (j = field_start; j < pos; j++) {
ush_write_char(line[j]);
}
break;
}
current_field++;
field_start = pos + 1ULL;
}
}
ush_write_char('\n');
}
static int ush_cmd_cut(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
char delim = ',';
u64 field_index = 1ULL;
u64 i;
u64 start = 0ULL;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_cut_parse_args(arg, &delim, &field_index, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("cut: usage cut -d <char> -f <N> [file]");
return 0;
}
if (ush_text_load_input(sh, "cut", file_arg, &input, &input_len) == 0) {
return 0;
}
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n') {
ush_cut_emit_field(&input[start], i - start, delim, field_index);
start = i + 1ULL;
}
}
if (start < input_len) {
ush_cut_emit_field(&input[start], input_len - start, delim, field_index);
}
return 1;
}
static int ush_uniq_line_equal(const char *left, u64 left_len, const char *right, u64 right_len) {
u64 i;
if (left_len != right_len) {
return 0;
}
for (i = 0ULL; i < left_len; i++) {
if (left[i] != right[i]) {
return 0;
}
}
return 1;
}
static void ush_uniq_emit_line(const char *line, u64 line_len) {
u64 i;
for (i = 0ULL; i < line_len; i++) {
ush_write_char(line[i]);
}
ush_write_char('\n');
}
static int ush_cmd_uniq(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
const char *prev_line = (const char *)0;
u64 prev_len = 0ULL;
u64 start = 0ULL;
u64 i;
int first = 1;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_text_parse_optional_file(arg, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("uniq: usage uniq [file]");
return 0;
}
if (ush_text_load_input(sh, "uniq", file_arg, &input, &input_len) == 0) {
return 0;
}
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n') {
u64 line_len = i - start;
const char *line = &input[start];
if (first != 0 || ush_uniq_line_equal(prev_line, prev_len, line, line_len) == 0) {
ush_uniq_emit_line(line, line_len);
prev_line = line;
prev_len = line_len;
first = 0;
}
start = i + 1ULL;
}
}
if (start < input_len) {
u64 line_len = input_len - start;
const char *line = &input[start];
if (first != 0 || ush_uniq_line_equal(prev_line, prev_len, line, line_len) == 0) {
ush_uniq_emit_line(line, line_len);
}
}
return 1;
}
static int ush_sort_compare_line(const char *left, const char *right) {
u64 i = 0ULL;
while (left[i] != '\0' && right[i] != '\0') {
if (left[i] < right[i]) {
return -1;
}
if (left[i] > right[i]) {
return 1;
}
i++;
}
if (left[i] == right[i]) {
return 0;
}
return (left[i] == '\0') ? -1 : 1;
}
static int ush_sort_collect_lines(char *buf, u64 len, char **out_lines, u64 max_lines, u64 *out_count) {
u64 start = 0ULL;
u64 i;
u64 count = 0ULL;
int truncated = 0;
if (buf == (char *)0 || out_lines == (char **)0 || out_count == (u64 *)0 || max_lines == 0ULL) {
return 0;
}
*out_count = 0ULL;
for (i = 0ULL; i < len; i++) {
if (buf[i] == '\n') {
buf[i] = '\0';
if (count < max_lines) {
out_lines[count++] = &buf[start];
} else {
truncated = 1;
}
start = i + 1ULL;
}
}
if (start < len) {
if (count < max_lines) {
out_lines[count++] = &buf[start];
} else {
truncated = 1;
}
}
*out_count = count;
return (truncated == 0) ? 1 : 2;
}
static void ush_sort_lines(char **lines, u64 count) {
u64 i;
if (lines == (char **)0 || count == 0ULL) {
return;
}
for (i = 1ULL; i < count; i++) {
char *key = lines[i];
u64 j = i;
while (j > 0ULL && ush_sort_compare_line(lines[j - 1ULL], key) > 0) {
lines[j] = lines[j - 1ULL];
j--;
}
lines[j] = key;
}
}
static int ush_cmd_sort(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
static char sort_buf[USH_COPY_MAX + 1U];
char *lines[USH_SORT_MAX_LINES];
u64 line_count = 0ULL;
u64 i;
int collect_status;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_text_parse_optional_file(arg, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("sort: usage sort [file]");
return 0;
}
if (ush_text_load_input(sh, "sort", file_arg, &input, &input_len) == 0) {
return 0;
}
for (i = 0ULL; i < input_len; i++) {
sort_buf[i] = input[i];
}
sort_buf[input_len] = '\0';
collect_status = ush_sort_collect_lines(sort_buf, input_len, lines, (u64)USH_SORT_MAX_LINES, &line_count);
if (collect_status == 0) {
ush_writeln("sort: internal parse error");
return 0;
}
ush_sort_lines(lines, line_count);
for (i = 0ULL; i < line_count; i++) {
ush_writeln(lines[i]);
}
if (collect_status == 2) {
ush_writeln("[sort] line count truncated");
}
return 1;
}
static int ush_cmd_pwd(const ush_state *sh) {
ush_writeln(sh->cwd);
return 1;
@@ -1666,6 +2409,18 @@ static int ush_execute_single_command(ush_state *sh,
success = ush_cmd_cat(sh, arg);
} else if (ush_streq(cmd, "grep") != 0) {
success = ush_cmd_grep(sh, arg);
} else if (ush_streq(cmd, "head") != 0) {
success = ush_cmd_head(sh, arg);
} else if (ush_streq(cmd, "tail") != 0) {
success = ush_cmd_tail(sh, arg);
} else if (ush_streq(cmd, "wc") != 0) {
success = ush_cmd_wc(sh, arg);
} else if (ush_streq(cmd, "cut") != 0) {
success = ush_cmd_cut(sh, arg);
} else if (ush_streq(cmd, "uniq") != 0) {
success = ush_cmd_uniq(sh, arg);
} else if (ush_streq(cmd, "sort") != 0) {
success = ush_cmd_sort(sh, arg);
} else if (ush_streq(cmd, "pwd") != 0) {
success = ush_cmd_pwd(sh);
} else if (ush_streq(cmd, "cd") != 0) {

267
cleonos/c/apps/sort_main.c Normal file
View File

@@ -0,0 +1,267 @@
#include "cmd_runtime.h"
#define USH_SORT_MAX_LINES 4096ULL
static int ush_sort_parse_args(const char *arg, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
const char *rest = "";
if (out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_sort_load_input(const ush_state *sh, const char *file_arg, char *out_buf, u64 out_buf_size, u64 *out_len) {
char path[USH_PATH_MAX];
u64 size;
u64 got;
u64 i;
if (sh == (const ush_state *)0 || out_buf == (char *)0 || out_buf_size == 0ULL || out_len == (u64 *)0) {
return 0;
}
*out_len = 0ULL;
out_buf[0] = '\0';
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_writeln("sort: invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_writeln("sort: file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_writeln("sort: failed to stat file");
return 0;
}
if (size + 1ULL > out_buf_size) {
ush_writeln("sort: file too large for user buffer");
return 0;
}
if (size == 0ULL) {
return 1;
}
got = cleonos_sys_fs_read(path, out_buf, size);
if (got == 0ULL || got != size) {
ush_writeln("sort: read failed");
return 0;
}
out_buf[got] = '\0';
*out_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_writeln("sort: file path required (or pipeline input)");
return 0;
}
if (ush_pipeline_stdin_len + 1ULL > out_buf_size) {
ush_writeln("sort: pipeline input too large");
return 0;
}
for (i = 0ULL; i < ush_pipeline_stdin_len; i++) {
out_buf[i] = ush_pipeline_stdin_text[i];
}
out_buf[ush_pipeline_stdin_len] = '\0';
*out_len = ush_pipeline_stdin_len;
return 1;
}
static int ush_sort_compare_line(const char *left, const char *right) {
u64 i = 0ULL;
while (left[i] != '\0' && right[i] != '\0') {
if (left[i] < right[i]) {
return -1;
}
if (left[i] > right[i]) {
return 1;
}
i++;
}
if (left[i] == right[i]) {
return 0;
}
return (left[i] == '\0') ? -1 : 1;
}
static int ush_sort_collect_lines(char *buf, u64 len, char **out_lines, u64 max_lines, u64 *out_count) {
u64 start = 0ULL;
u64 i;
u64 count = 0ULL;
int truncated = 0;
if (buf == (char *)0 || out_lines == (char **)0 || out_count == (u64 *)0 || max_lines == 0ULL) {
return 0;
}
*out_count = 0ULL;
for (i = 0ULL; i < len; i++) {
if (buf[i] == '\n') {
buf[i] = '\0';
if (count < max_lines) {
out_lines[count++] = &buf[start];
} else {
truncated = 1;
}
start = i + 1ULL;
}
}
if (start < len) {
if (count < max_lines) {
out_lines[count++] = &buf[start];
} else {
truncated = 1;
}
}
*out_count = count;
return (truncated == 0) ? 1 : 2;
}
static void ush_sort_lines(char **lines, u64 count) {
u64 i;
if (lines == (char **)0 || count == 0ULL) {
return;
}
for (i = 1ULL; i < count; i++) {
char *key = lines[i];
u64 j = i;
while (j > 0ULL && ush_sort_compare_line(lines[j - 1ULL], key) > 0) {
lines[j] = lines[j - 1ULL];
j--;
}
lines[j] = key;
}
}
static int ush_cmd_sort(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
static char sort_buf[USH_COPY_MAX + 1U];
char *lines[USH_SORT_MAX_LINES];
u64 len = 0ULL;
u64 line_count = 0ULL;
u64 i;
int collect_status;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_sort_parse_args(arg, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("sort: usage sort [file]");
return 0;
}
if (ush_sort_load_input(sh, file_arg, sort_buf, (u64)sizeof(sort_buf), &len) == 0) {
return 0;
}
collect_status = ush_sort_collect_lines(sort_buf, len, lines, (u64)USH_SORT_MAX_LINES, &line_count);
if (collect_status == 0) {
ush_writeln("sort: internal parse error");
return 0;
}
ush_sort_lines(lines, line_count);
for (i = 0ULL; i < line_count; i++) {
ush_writeln(lines[i]);
}
if (collect_status == 2) {
ush_writeln("[sort] line count truncated");
}
return 1;
}
int cleonos_app_main(void) {
ush_cmd_ctx ctx;
ush_cmd_ret ret;
ush_state sh;
char initial_cwd[USH_PATH_MAX];
int has_context = 0;
int success = 0;
const char *arg = "";
ush_zero(&ctx, (u64)sizeof(ctx));
ush_zero(&ret, (u64)sizeof(ret));
ush_init_state(&sh);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
if (ush_command_ctx_read(&ctx) != 0) {
if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "sort") != 0) {
has_context = 1;
arg = ctx.arg;
if (ctx.cwd[0] == '/') {
ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
}
}
}
success = ush_cmd_sort(&sh, arg);
if (has_context != 0) {
if (ush_streq(sh.cwd, initial_cwd) == 0) {
ret.flags |= USH_CMD_RET_FLAG_CWD;
ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
}
if (sh.exit_requested != 0) {
ret.flags |= USH_CMD_RET_FLAG_EXIT;
ret.exit_code = sh.exit_code;
}
(void)ush_command_ret_write(&ret);
}
return (success != 0) ? 0 : 1;
}

243
cleonos/c/apps/tail_main.c Normal file
View File

@@ -0,0 +1,243 @@
#include "cmd_runtime.h"
static int ush_tail_parse_args(const char *arg, u64 *out_line_count, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
char second[USH_PATH_MAX];
char third[USH_PATH_MAX];
const char *rest = "";
const char *rest2 = "";
if (out_line_count == (u64 *)0 || out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
*out_line_count = 10ULL;
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (ush_streq(first, "-n") != 0) {
if (ush_split_first_and_rest(rest, second, (u64)sizeof(second), &rest2) == 0) {
return 0;
}
if (ush_parse_u64_dec(second, out_line_count) == 0) {
return 0;
}
if (rest2 != (const char *)0 && rest2[0] != '\0') {
if (ush_split_first_and_rest(rest2, third, (u64)sizeof(third), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, third);
}
return 1;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_tail_load_input(const ush_state *sh, const char *file_arg, const char **out_input, u64 *out_input_len) {
static char file_buf[USH_COPY_MAX + 1U];
char path[USH_PATH_MAX];
u64 size;
u64 got;
if (sh == (const ush_state *)0 || out_input == (const char **)0 || out_input_len == (u64 *)0) {
return 0;
}
*out_input = (const char *)0;
*out_input_len = 0ULL;
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_writeln("tail: invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_writeln("tail: file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_writeln("tail: failed to stat file");
return 0;
}
if (size > (u64)USH_COPY_MAX) {
ush_writeln("tail: file too large for user buffer");
return 0;
}
if (size == 0ULL) {
file_buf[0] = '\0';
*out_input = file_buf;
*out_input_len = 0ULL;
return 1;
}
got = cleonos_sys_fs_read(path, file_buf, size);
if (got == 0ULL || got != size) {
ush_writeln("tail: read failed");
return 0;
}
file_buf[got] = '\0';
*out_input = file_buf;
*out_input_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_writeln("tail: file path required (or pipeline input)");
return 0;
}
*out_input = ush_pipeline_stdin_text;
*out_input_len = ush_pipeline_stdin_len;
return 1;
}
static u64 ush_tail_count_lines(const char *input, u64 input_len) {
u64 i;
u64 lines = 0ULL;
if (input == (const char *)0 || input_len == 0ULL) {
return 0ULL;
}
lines = 1ULL;
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n' && i + 1ULL < input_len) {
lines++;
}
}
return lines;
}
static u64 ush_tail_find_start_offset(const char *input, u64 input_len, u64 skip_lines) {
u64 i;
u64 lines_seen = 0ULL;
if (input == (const char *)0 || input_len == 0ULL || skip_lines == 0ULL) {
return 0ULL;
}
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n' && i + 1ULL < input_len) {
lines_seen++;
if (lines_seen == skip_lines) {
return i + 1ULL;
}
}
}
return input_len;
}
static int ush_cmd_tail(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
u64 line_count;
u64 total_lines;
u64 skip_lines;
u64 start_offset;
u64 i;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_tail_parse_args(arg, &line_count, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("tail: usage tail [-n N] [file]");
return 0;
}
if (ush_tail_load_input(sh, file_arg, &input, &input_len) == 0) {
return 0;
}
if (line_count == 0ULL || input_len == 0ULL) {
return 1;
}
total_lines = ush_tail_count_lines(input, input_len);
skip_lines = (total_lines > line_count) ? (total_lines - line_count) : 0ULL;
start_offset = ush_tail_find_start_offset(input, input_len, skip_lines);
for (i = start_offset; i < input_len; i++) {
ush_write_char(input[i]);
}
return 1;
}
int cleonos_app_main(void) {
ush_cmd_ctx ctx;
ush_cmd_ret ret;
ush_state sh;
char initial_cwd[USH_PATH_MAX];
int has_context = 0;
int success = 0;
const char *arg = "";
ush_zero(&ctx, (u64)sizeof(ctx));
ush_zero(&ret, (u64)sizeof(ret));
ush_init_state(&sh);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
if (ush_command_ctx_read(&ctx) != 0) {
if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "tail") != 0) {
has_context = 1;
arg = ctx.arg;
if (ctx.cwd[0] == '/') {
ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
}
}
}
success = ush_cmd_tail(&sh, arg);
if (has_context != 0) {
if (ush_streq(sh.cwd, initial_cwd) == 0) {
ret.flags |= USH_CMD_RET_FLAG_CWD;
ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
}
if (sh.exit_requested != 0) {
ret.flags |= USH_CMD_RET_FLAG_EXIT;
ret.exit_code = sh.exit_code;
}
(void)ush_command_ret_write(&ret);
}
return (success != 0) ? 0 : 1;
}

215
cleonos/c/apps/uniq_main.c Normal file
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#include "cmd_runtime.h"
static int ush_uniq_parse_args(const char *arg, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
const char *rest = "";
if (out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_uniq_load_input(const ush_state *sh, const char *file_arg, const char **out_input, u64 *out_input_len) {
static char file_buf[USH_COPY_MAX + 1U];
char path[USH_PATH_MAX];
u64 size;
u64 got;
if (sh == (const ush_state *)0 || out_input == (const char **)0 || out_input_len == (u64 *)0) {
return 0;
}
*out_input = (const char *)0;
*out_input_len = 0ULL;
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_writeln("uniq: invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_writeln("uniq: file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_writeln("uniq: failed to stat file");
return 0;
}
if (size > (u64)USH_COPY_MAX) {
ush_writeln("uniq: file too large for user buffer");
return 0;
}
if (size == 0ULL) {
file_buf[0] = '\0';
*out_input = file_buf;
*out_input_len = 0ULL;
return 1;
}
got = cleonos_sys_fs_read(path, file_buf, size);
if (got == 0ULL || got != size) {
ush_writeln("uniq: read failed");
return 0;
}
file_buf[got] = '\0';
*out_input = file_buf;
*out_input_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_writeln("uniq: file path required (or pipeline input)");
return 0;
}
*out_input = ush_pipeline_stdin_text;
*out_input_len = ush_pipeline_stdin_len;
return 1;
}
static int ush_uniq_line_equal(const char *left, u64 left_len, const char *right, u64 right_len) {
u64 i;
if (left_len != right_len) {
return 0;
}
for (i = 0ULL; i < left_len; i++) {
if (left[i] != right[i]) {
return 0;
}
}
return 1;
}
static void ush_uniq_emit_line(const char *line, u64 line_len) {
u64 i;
for (i = 0ULL; i < line_len; i++) {
ush_write_char(line[i]);
}
ush_write_char('\n');
}
static int ush_cmd_uniq(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
const char *prev_line = (const char *)0;
u64 prev_len = 0ULL;
u64 start = 0ULL;
u64 i;
int first = 1;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_uniq_parse_args(arg, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("uniq: usage uniq [file]");
return 0;
}
if (ush_uniq_load_input(sh, file_arg, &input, &input_len) == 0) {
return 0;
}
for (i = 0ULL; i < input_len; i++) {
if (input[i] == '\n') {
u64 line_len = i - start;
const char *line = &input[start];
if (first != 0 || ush_uniq_line_equal(prev_line, prev_len, line, line_len) == 0) {
ush_uniq_emit_line(line, line_len);
prev_line = line;
prev_len = line_len;
first = 0;
}
start = i + 1ULL;
}
}
if (start < input_len) {
u64 line_len = input_len - start;
const char *line = &input[start];
if (first != 0 || ush_uniq_line_equal(prev_line, prev_len, line, line_len) == 0) {
ush_uniq_emit_line(line, line_len);
}
}
return 1;
}
int cleonos_app_main(void) {
ush_cmd_ctx ctx;
ush_cmd_ret ret;
ush_state sh;
char initial_cwd[USH_PATH_MAX];
int has_context = 0;
int success = 0;
const char *arg = "";
ush_zero(&ctx, (u64)sizeof(ctx));
ush_zero(&ret, (u64)sizeof(ret));
ush_init_state(&sh);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
if (ush_command_ctx_read(&ctx) != 0) {
if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "uniq") != 0) {
has_context = 1;
arg = ctx.arg;
if (ctx.cwd[0] == '/') {
ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
}
}
}
success = ush_cmd_uniq(&sh, arg);
if (has_context != 0) {
if (ush_streq(sh.cwd, initial_cwd) == 0) {
ret.flags |= USH_CMD_RET_FLAG_CWD;
ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
}
if (sh.exit_requested != 0) {
ret.flags |= USH_CMD_RET_FLAG_EXIT;
ret.exit_code = sh.exit_code;
}
(void)ush_command_ret_write(&ret);
}
return (success != 0) ? 0 : 1;
}

208
cleonos/c/apps/wc_main.c Normal file
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#include "cmd_runtime.h"
static void ush_wc_write_u64_dec(u64 value) {
char tmp[32];
u64 len = 0ULL;
if (value == 0ULL) {
ush_write_char('0');
return;
}
while (value > 0ULL && len < (u64)sizeof(tmp)) {
tmp[len++] = (char)('0' + (value % 10ULL));
value /= 10ULL;
}
while (len > 0ULL) {
len--;
ush_write_char(tmp[len]);
}
}
static int ush_wc_parse_args(const char *arg, char *out_file, u64 out_file_size) {
char first[USH_PATH_MAX];
const char *rest = "";
if (out_file == (char *)0 || out_file_size == 0ULL) {
return 0;
}
out_file[0] = '\0';
if (arg == (const char *)0 || arg[0] == '\0') {
return 1;
}
if (ush_split_first_and_rest(arg, first, (u64)sizeof(first), &rest) == 0) {
return 0;
}
if (rest != (const char *)0 && rest[0] != '\0') {
return 0;
}
ush_copy(out_file, out_file_size, first);
return 1;
}
static int ush_wc_load_input(const ush_state *sh, const char *file_arg, const char **out_input, u64 *out_input_len) {
static char file_buf[USH_COPY_MAX + 1U];
char path[USH_PATH_MAX];
u64 size;
u64 got;
if (sh == (const ush_state *)0 || out_input == (const char **)0 || out_input_len == (u64 *)0) {
return 0;
}
*out_input = (const char *)0;
*out_input_len = 0ULL;
if (file_arg != (const char *)0 && file_arg[0] != '\0') {
if (ush_resolve_path(sh, file_arg, path, (u64)sizeof(path)) == 0) {
ush_writeln("wc: invalid path");
return 0;
}
if (cleonos_sys_fs_stat_type(path) != 1ULL) {
ush_writeln("wc: file not found");
return 0;
}
size = cleonos_sys_fs_stat_size(path);
if (size == (u64)-1) {
ush_writeln("wc: failed to stat file");
return 0;
}
if (size > (u64)USH_COPY_MAX) {
ush_writeln("wc: file too large for user buffer");
return 0;
}
if (size == 0ULL) {
file_buf[0] = '\0';
*out_input = file_buf;
*out_input_len = 0ULL;
return 1;
}
got = cleonos_sys_fs_read(path, file_buf, size);
if (got == 0ULL || got != size) {
ush_writeln("wc: read failed");
return 0;
}
file_buf[got] = '\0';
*out_input = file_buf;
*out_input_len = got;
return 1;
}
if (ush_pipeline_stdin_text == (const char *)0) {
ush_writeln("wc: file path required (or pipeline input)");
return 0;
}
*out_input = ush_pipeline_stdin_text;
*out_input_len = ush_pipeline_stdin_len;
return 1;
}
static int ush_cmd_wc(const ush_state *sh, const char *arg) {
char file_arg[USH_PATH_MAX];
const char *input = (const char *)0;
u64 input_len = 0ULL;
u64 bytes = 0ULL;
u64 lines = 0ULL;
u64 words = 0ULL;
u64 i;
int in_word = 0;
if (sh == (const ush_state *)0) {
return 0;
}
if (ush_wc_parse_args(arg, file_arg, (u64)sizeof(file_arg)) == 0) {
ush_writeln("wc: usage wc [file]");
return 0;
}
if (ush_wc_load_input(sh, file_arg, &input, &input_len) == 0) {
return 0;
}
bytes = input_len;
for (i = 0ULL; i < input_len; i++) {
char ch = input[i];
if (ch == '\n') {
lines++;
}
if (ush_is_space(ch) != 0) {
in_word = 0;
} else if (in_word == 0) {
words++;
in_word = 1;
}
}
ush_wc_write_u64_dec(lines);
ush_write(" ");
ush_wc_write_u64_dec(words);
ush_write(" ");
ush_wc_write_u64_dec(bytes);
ush_write_char('\n');
return 1;
}
int cleonos_app_main(void) {
ush_cmd_ctx ctx;
ush_cmd_ret ret;
ush_state sh;
char initial_cwd[USH_PATH_MAX];
int has_context = 0;
int success = 0;
const char *arg = "";
ush_zero(&ctx, (u64)sizeof(ctx));
ush_zero(&ret, (u64)sizeof(ret));
ush_init_state(&sh);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
if (ush_command_ctx_read(&ctx) != 0) {
if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "wc") != 0) {
has_context = 1;
arg = ctx.arg;
if (ctx.cwd[0] == '/') {
ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
}
}
}
success = ush_cmd_wc(&sh, arg);
if (has_context != 0) {
if (ush_streq(sh.cwd, initial_cwd) == 0) {
ret.flags |= USH_CMD_RET_FLAG_CWD;
ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
}
if (sh.exit_requested != 0) {
ret.flags |= USH_CMD_RET_FLAG_EXIT;
ret.exit_code = sh.exit_code;
}
(void)ush_command_ret_write(&ret);
}
return (success != 0) ? 0 : 1;
}