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Leonmmcoset
2026-04-18 14:29:24 +08:00
parent 6a93335e53
commit 6b3c74f66f
6 changed files with 240 additions and 138 deletions
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56
clks/kernel/syscall.c
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@@ -20,7 +20,7 @@
#define CLKS_SYSCALL_PATH_MAX 192U
#define CLKS_SYSCALL_NAME_MAX 96U
#define CLKS_SYSCALL_TTY_MAX_LEN 2048U
#define CLKS_SYSCALL_FS_IO_MAX_LEN 65536U
#define CLKS_SYSCALL_FS_IO_CHUNK_LEN 65536U
#define CLKS_SYSCALL_JOURNAL_MAX_LEN 256U
#define CLKS_SYSCALL_ARG_LINE_MAX 256U
#define CLKS_SYSCALL_ENV_LINE_MAX 512U
@@ -1457,44 +1457,62 @@ static u64 clks_syscall_fs_mkdir(u64 arg0) {
static u64 clks_syscall_fs_write_common(u64 arg0, u64 arg1, u64 arg2, clks_bool append_mode) {
char path[CLKS_SYSCALL_PATH_MAX];
void *heap_copy = CLKS_NULL;
const void *payload = CLKS_NULL;
const u8 *src = (const u8 *)arg1;
u64 remaining = arg2;
clks_bool first_chunk = CLKS_TRUE;
clks_bool ok;
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return 0ULL;
}
if (arg2 > CLKS_SYSCALL_FS_IO_MAX_LEN) {
if (arg2 == 0ULL) {
if (append_mode == CLKS_TRUE) {
ok = clks_fs_append(path, CLKS_NULL, 0ULL);
} else {
ok = clks_fs_write_all(path, CLKS_NULL, 0ULL);
}
return (ok == CLKS_TRUE) ? 1ULL : 0ULL;
}
if (arg1 == 0ULL) {
return 0ULL;
}
if (arg2 > 0ULL) {
if (arg1 == 0ULL) {
return 0ULL;
while (remaining > 0ULL) {
u64 chunk_len = remaining;
void *heap_copy;
if (chunk_len > CLKS_SYSCALL_FS_IO_CHUNK_LEN) {
chunk_len = CLKS_SYSCALL_FS_IO_CHUNK_LEN;
}
heap_copy = clks_kmalloc((usize)arg2);
heap_copy = clks_kmalloc((usize)chunk_len);
if (heap_copy == CLKS_NULL) {
return 0ULL;
}
clks_memcpy(heap_copy, (const void *)arg1, (usize)arg2);
payload = (const void *)heap_copy;
}
clks_memcpy(heap_copy, (const void *)src, (usize)chunk_len);
if (append_mode == CLKS_TRUE) {
ok = clks_fs_append(path, payload, arg2);
} else {
ok = clks_fs_write_all(path, payload, arg2);
}
if (append_mode == CLKS_TRUE || first_chunk == CLKS_FALSE) {
ok = clks_fs_append(path, heap_copy, chunk_len);
} else {
ok = clks_fs_write_all(path, heap_copy, chunk_len);
}
if (heap_copy != CLKS_NULL) {
clks_kfree(heap_copy);
if (ok == CLKS_FALSE) {
return 0ULL;
}
src += chunk_len;
remaining -= chunk_len;
first_chunk = CLKS_FALSE;
}
return (ok == CLKS_TRUE) ? 1ULL : 0ULL;
return 1ULL;
}
static u64 clks_syscall_fs_write(u64 arg0, u64 arg1, u64 arg2) {