mirror of
https://github.com/Leonmmcoset/cleonos.git
synced 2026-04-21 18:44:01 +00:00
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
#include "cmd_runtime.h"
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static int ush_cmd_exec(const ush_state *sh, const char *arg) {
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char target[USH_PATH_MAX];
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char argv_line[USH_ARG_MAX];
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char env_line[USH_PATH_MAX + 32ULL];
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const char *rest = "";
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char path[USH_PATH_MAX];
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u64 status;
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if (sh == (const ush_state *)0 || arg == (const char *)0 || arg[0] == '\0') {
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ush_writeln("exec: usage exec <path|name> [args...]");
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return 0;
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}
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if (ush_split_first_and_rest(arg, target, (u64)sizeof(target), &rest) == 0) {
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ush_writeln("exec: usage exec <path|name> [args...]");
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return 0;
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}
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argv_line[0] = '\0';
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if (rest != (const char *)0 && rest[0] != '\0') {
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ush_copy(argv_line, (u64)sizeof(argv_line), rest);
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}
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if (ush_resolve_exec_path(sh, target, path, (u64)sizeof(path)) == 0) {
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ush_writeln("exec: invalid target");
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return 0;
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}
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if (ush_path_is_under_system(path) != 0) {
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ush_writeln("exec: /system/*.elf is kernel-mode (KELF), not user-exec");
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return 0;
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}
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env_line[0] = '\0';
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ush_copy(env_line, (u64)sizeof(env_line), "PWD=");
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ush_copy(env_line + 4, (u64)(sizeof(env_line) - 4ULL), sh->cwd);
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status = cleonos_sys_exec_pathv(path, argv_line, env_line);
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if (status == (u64)-1) {
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ush_writeln("exec: request failed");
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return 0;
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}
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if (status == 0ULL) {
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ush_writeln("exec: request accepted");
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return 1;
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}
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if ((status & (1ULL << 63)) != 0ULL) {
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ush_writeln("exec: terminated by signal");
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ush_print_kv_hex(" SIGNAL", status & 0xFFULL);
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ush_print_kv_hex(" VECTOR", (status >> 8) & 0xFFULL);
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ush_print_kv_hex(" ERROR", (status >> 16) & 0xFFFFULL);
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} else {
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ush_writeln("exec: returned non-zero status");
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ush_print_kv_hex(" STATUS", status);
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}
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return 0;
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}
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int cleonos_app_main(void) {
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ush_cmd_ctx ctx;
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ush_cmd_ret ret;
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ush_state sh;
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char initial_cwd[USH_PATH_MAX];
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int has_context = 0;
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int success = 0;
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const char *arg = "";
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ush_zero(&ctx, (u64)sizeof(ctx));
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ush_zero(&ret, (u64)sizeof(ret));
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ush_init_state(&sh);
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ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
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if (ush_command_ctx_read(&ctx) != 0) {
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if (ctx.cmd[0] != '\0' && ush_streq(ctx.cmd, "exec") != 0) {
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has_context = 1;
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arg = ctx.arg;
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if (ctx.cwd[0] == '/') {
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ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
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ush_copy(initial_cwd, (u64)sizeof(initial_cwd), sh.cwd);
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}
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}
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}
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success = ush_cmd_exec(&sh, arg);
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if (has_context != 0) {
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if (ush_streq(sh.cwd, initial_cwd) == 0) {
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ret.flags |= USH_CMD_RET_FLAG_CWD;
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ush_copy(ret.cwd, (u64)sizeof(ret.cwd), sh.cwd);
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}
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if (sh.exit_requested != 0) {
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ret.flags |= USH_CMD_RET_FLAG_EXIT;
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ret.exit_code = sh.exit_code;
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}
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(void)ush_command_ret_write(&ret);
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}
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return (success != 0) ? 0 : 1;
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}
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