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Leonmmcoset
2026-04-16 22:29:08 +08:00
parent 2d843a100e
commit 589a83cb07
29 changed files with 1397 additions and 49 deletions
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38
cleonos/c/apps/shell/shell_external.c
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@@ -13,6 +13,25 @@ static void ush_zero(void *ptr, u64 size) {
}
}
static void ush_append_text(char *dst, u64 dst_size, const char *text) {
u64 p = 0ULL;
u64 i = 0ULL;
if (dst == (char *)0 || dst_size == 0ULL || text == (const char *)0) {
return;
}
while (dst[p] != '\0' && p + 1ULL < dst_size) {
p++;
}
while (text[i] != '\0' && p + 1ULL < dst_size) {
dst[p++] = text[i++];
}
dst[p] = '\0';
}
static const char *ush_alias_command(const char *cmd) {
if (cmd == (const char *)0) {
return (const char *)0;
@@ -121,6 +140,7 @@ int ush_command_ret_read(ush_cmd_ret *out_ret) {
int ush_try_exec_external(ush_state *sh, const char *cmd, const char *arg, int *out_success) {
const char *canonical;
char path[USH_PATH_MAX];
char env_line[USH_PATH_MAX + USH_CMD_MAX + 32ULL];
u64 status;
ush_cmd_ret ret;
@@ -153,7 +173,13 @@ int ush_try_exec_external(ush_state *sh, const char *cmd, const char *arg, int *
return 1;
}
status = cleonos_sys_exec_path(path);
env_line[0] = '\0';
ush_append_text(env_line, (u64)sizeof(env_line), "PWD=");
ush_append_text(env_line, (u64)sizeof(env_line), sh->cwd);
ush_append_text(env_line, (u64)sizeof(env_line), ";CMD=");
ush_append_text(env_line, (u64)sizeof(env_line), canonical);
status = cleonos_sys_exec_pathv(path, arg, env_line);
if (status == (u64)-1) {
ush_writeln("exec: request failed");
@@ -169,7 +195,15 @@ int ush_try_exec_external(ush_state *sh, const char *cmd, const char *arg, int *
(void)cleonos_sys_fs_remove(USH_CMD_RET_PATH);
if (status != 0ULL) {
ush_writeln("exec: returned non-zero status");
if ((status & (1ULL << 63)) != 0ULL) {
ush_writeln("exec: terminated by signal");
ush_print_kv_hex(" SIGNAL", status & 0xFFULL);
ush_print_kv_hex(" VECTOR", (status >> 8) & 0xFFULL);
ush_print_kv_hex(" ERROR", (status >> 16) & 0xFFFFULL);
} else {
ush_writeln("exec: returned non-zero status");
ush_print_kv_hex(" STATUS", status);
}
if (out_success != (int *)0) {
*out_success = 0;