snark13
8e389c03f8
Реализовать двухпанельный Commander от платформенного PoC до этапов P6-P20: EMM-каталог, сортировку и выбор, операции с файлами и деревьями, транзакционное копирование, метаданные, политику конфликтов и предварительную проверку свободного места. Добавить проектную документацию, HDD/MAME-сценарии и проверенные артефакты. Расширить libc операцией bank_write_page, исправлением режима O_RDONLY и связанными регрессионными проверками.
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*
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* p10_rename_probe.c — target-регрессия локального F6/RENAME.
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*
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* Проверяет файл, каталог, запрет overwrite и восстановление CWD через тот
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* же низкоуровневый helper, который вызывает Commander.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "sc_file_ops.h"
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static int result_fd = -1;
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static uint8_t failures;
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static char cwd_before[256];
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static char cwd_after[256];
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static char cwd_scratch[256];
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static void log_text(const char *text)
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{
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const char *end = text;
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while (*end != '\0') end++;
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if (result_fd >= 0) {
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(void)write(result_fd, text, (uint16_t)(end - text));
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}
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}
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static void check(uint8_t condition, const char *name)
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{
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log_text(condition ? "PASS " : "FAIL ");
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if (!condition) failures++;
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log_text(name);
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log_text("\r\n");
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}
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static uint8_t file_has(const char *path, const char *expected)
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{
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char data[24];
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int fd = open(path, O_RDONLY);
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int got;
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uint16_t length = 0u;
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if (fd < 0) return 0u;
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while (expected[length] != '\0') length++;
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got = read(fd, data, sizeof(data));
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(void)close(fd);
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return got == (int)length && memcmp(data, expected, length) == 0;
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}
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static uint8_t file_absent(const char *path)
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{
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int fd;
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errno = 0;
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fd = open(path, O_RDONLY);
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if (fd >= 0) {
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(void)close(fd);
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return 0u;
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}
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return errno == ENOENT || errno == ENOPATH;
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}
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int main(void)
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{
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int rc;
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int collision_errno;
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int entered;
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result_fd = open("D:\\RENRES.TXT", O_WRONLY | O_CREAT | O_TRUNC);
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check(getcwd(cwd_before, sizeof(cwd_before)) != 0,
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"CWD captured before rename matrix");
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rc = sc_rename_local("D:\\RENTEST", "OLD.TXT", "NEW.TXT",
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cwd_scratch, sizeof(cwd_scratch));
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check(rc == 0 && file_absent("D:\\RENTEST\\OLD.TXT") &&
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file_has("D:\\RENTEST\\NEW.TXT", "old payload\r\n"),
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"file renamed without data change");
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errno = 0;
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rc = sc_rename_local("D:\\RENTEST", "NEW.TXT", "EXIST.TXT",
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cwd_scratch, sizeof(cwd_scratch));
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collision_errno = errno;
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check(rc != 0 && collision_errno == EEXIST &&
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file_has("D:\\RENTEST\\NEW.TXT", "old payload\r\n") &&
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file_has("D:\\RENTEST\\EXIST.TXT", "existing payload\r\n"),
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"existing target blocks rename and stays intact");
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rc = sc_rename_local("D:\\RENTEST", "OLDDIR", "NEWDIR",
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cwd_scratch, sizeof(cwd_scratch));
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entered = chdir("D:\\RENTEST\\NEWDIR");
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if (entered == 0) entered = chdir(cwd_before);
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check(rc == 0 && entered == 0 &&
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file_has("D:\\RENTEST\\NEWDIR\\KEEP.BIN", "dir payload\r\n"),
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"directory renamed with contents intact");
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errno = 0;
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rc = sc_rename_local("D:\\MISSING", "A.TXT", "B.TXT",
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cwd_scratch, sizeof(cwd_scratch));
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check(rc != 0 && getcwd(cwd_after, sizeof(cwd_after)) != 0 &&
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strcmp(cwd_before, cwd_after) == 0,
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"failed directory change preserves CWD");
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check(getcwd(cwd_after, sizeof(cwd_after)) != 0 &&
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strcmp(cwd_before, cwd_after) == 0,
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"successful and rejected renames restore CWD");
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if (failures == 0u) log_text("ALL PASS\r\n");
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if (result_fd >= 0) (void)close(result_fd);
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return failures;
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}
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