mirror of
https://github.com/Leonmmcoset/cleonos.git
synced 2026-04-27 13:44:01 +00:00
彻底拆分
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@@ -1,7 +1,5 @@
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#include "shell_internal.h"
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static int ush_dispatch_external_enabled = 1;
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static void ush_zero(void *ptr, u64 size) {
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u64 i;
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char *bytes = (char *)ptr;
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@@ -47,44 +45,6 @@ static const char *ush_alias_command(const char *cmd) {
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return cmd;
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}
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static int ush_build_command_line(const char *cmd, const char *arg, char *out_line, u64 out_size) {
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u64 p = 0ULL;
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u64 i;
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if (cmd == (const char *)0 || out_line == (char *)0 || out_size == 0ULL) {
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return 0;
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}
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out_line[0] = '\0';
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for (i = 0ULL; cmd[i] != '\0'; i++) {
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if (p + 1ULL >= out_size) {
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return 0;
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}
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out_line[p++] = cmd[i];
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}
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if (arg != (const char *)0 && arg[0] != '\0') {
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if (p + 1ULL >= out_size) {
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return 0;
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}
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out_line[p++] = ' ';
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for (i = 0ULL; arg[i] != '\0'; i++) {
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if (p + 1ULL >= out_size) {
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return 0;
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}
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out_line[p++] = arg[i];
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}
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}
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out_line[p] = '\0';
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return 1;
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}
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static int ush_cmd_ret_apply(ush_state *sh, const ush_cmd_ret *ret) {
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if (sh == (ush_state *)0 || ret == (const ush_cmd_ret *)0) {
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return 0;
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@@ -102,10 +62,6 @@ static int ush_cmd_ret_apply(ush_state *sh, const ush_cmd_ret *ret) {
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return 1;
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}
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void ush_set_external_dispatch(int enabled) {
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ush_dispatch_external_enabled = (enabled != 0) ? 1 : 0;
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}
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int ush_command_ctx_write(const char *cmd, const char *arg, const char *cwd) {
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ush_cmd_ctx ctx;
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@@ -176,10 +132,6 @@ int ush_try_exec_external(ush_state *sh, const char *cmd, const char *arg, int *
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return 0;
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}
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if (ush_dispatch_external_enabled == 0) {
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return 0;
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}
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canonical = ush_alias_command(cmd);
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if (canonical == (const char *)0) {
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@@ -232,66 +184,3 @@ int ush_try_exec_external(ush_state *sh, const char *cmd, const char *arg, int *
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return 1;
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}
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int ush_command_program_main(const char *command_name) {
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ush_cmd_ctx ctx;
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ush_state sh;
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ush_cmd_ret ret;
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char line[USH_LINE_MAX];
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u64 ok_before;
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int success;
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int has_context = 0;
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int use_ctx_cwd = 0;
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if (command_name == (const char *)0 || command_name[0] == '\0') {
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return 1;
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}
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ush_zero(&ctx, (u64)sizeof(ctx));
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if (ush_command_ctx_read(&ctx) != 0) {
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if (ush_streq(ctx.cmd, command_name) != 0) {
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has_context = 1;
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use_ctx_cwd = 1;
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} else if (ctx.cwd[0] == '/') {
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use_ctx_cwd = 1;
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ctx.arg[0] = '\0';
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}
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}
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ush_init_state(&sh);
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ush_set_external_dispatch(0);
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if (use_ctx_cwd != 0 && ctx.cwd[0] == '/') {
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ush_copy(sh.cwd, (u64)sizeof(sh.cwd), ctx.cwd);
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}
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if (ush_build_command_line(command_name, ctx.arg, line, (u64)sizeof(line)) == 0) {
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ush_set_external_dispatch(1);
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ush_writeln("command line too long");
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return 1;
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}
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ok_before = sh.cmd_ok;
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ush_execute_line(&sh, line);
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success = (sh.cmd_ok > ok_before) ? 1 : 0;
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if (has_context != 0) {
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ush_zero(&ret, (u64)sizeof(ret));
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if (ush_streq(sh.cwd, ctx.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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ush_set_external_dispatch(1);
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return (success != 0) ? 0 : 1;
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}
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