* along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
+#undef _GNU_SOURCE
+/* Make sure the POSIX-compatible strerror_r() is declared, rather than the GNU
+ * version, which has a different return type. */
+#define _POSIX_C_SOURCE 200112
+#include <string.h>
+#define _GNU_SOURCE
+
#include "wimlib_internal.h"
#include "endianness.h"
-#include "sha1.h"
#include "timestamp.h"
-#include <sys/time.h>
-
-#include <iconv.h>
-#include <string.h>
#include <ctype.h>
-#include <stdlib.h>
-#include <time.h>
-#include <unistd.h>
#include <errno.h>
+#include <stdlib.h>
+
+#include <unistd.h> /* for getpid() */
/* True if wimlib is to print an informational message when an error occurs.
* This can be turned off by calling wimlib_set_print_errors(false). */
#ifdef ENABLE_ERROR_MESSAGES
#include <stdarg.h>
-bool __wimlib_print_errors = false;
+static bool wimlib_print_errors = false;
-void wimlib_error(const char *format, ...)
+static void wimlib_vmsg(const char *tag, const char *format,
+ va_list va, bool perror)
{
- if (__wimlib_print_errors) {
- va_list va;
- int errno_save;
-
- va_start(va, format);
- errno_save = errno;
- fputs("[ERROR] ", stderr);
+ if (wimlib_print_errors) {
+ int errno_save = errno;
+ fflush(stdout);
+ fputs(tag, stderr);
vfprintf(stderr, format, va);
+ if (perror && errno_save != 0) {
+ char buf[50];
+ int res = strerror_r(errno_save, buf, sizeof(buf));
+ if (res) {
+ snprintf(buf, sizeof(buf),
+ "unknown error (errno=%d)", errno_save);
+ }
+ fputs(buf, stderr);
+ }
putc('\n', stderr);
errno = errno_save;
- va_end(va);
}
}
+void wimlib_error(const char *format, ...)
+{
+ va_list va;
+
+ va_start(va, format);
+ wimlib_vmsg("[ERROR] ", format, va, false);
+ va_end(va);
+}
+
void wimlib_error_with_errno(const char *format, ...)
{
- if (__wimlib_print_errors) {
- va_list va;
- int errno_save;
+ va_list va;
- va_start(va, format);
- errno_save = errno;
- fflush(stdout);
- fputs("[ERROR] ", stderr);
- vfprintf(stderr, format, va);
- fprintf(stderr, ": %s\n", strerror(errno_save));
- errno = errno_save;
- va_end(va);
- }
+ va_start(va, format);
+ wimlib_vmsg("[ERROR] ", format, va, true);
+ va_end(va);
}
void wimlib_warning(const char *format, ...)
{
- if (__wimlib_print_errors) {
- va_list va;
- int errno_save;
+ va_list va;
- va_start(va, format);
- errno_save = errno;
- fflush(stdout);
- fputs("[WARNING] ", stderr);
- vfprintf(stderr, format, va);
- putc('\n', stderr);
- errno = errno_save;
- va_end(va);
- }
+ va_start(va, format);
+ wimlib_vmsg("[WARNING] ", format, va, false);
+ va_end(va);
+}
+
+void wimlib_warning_with_errno(const char *format, ...)
+{
+ va_list va;
+
+ va_start(va, format);
+ wimlib_vmsg("[WARNING] ", format, va, true);
+ va_end(va);
}
#endif
WIMLIBAPI int wimlib_set_print_errors(bool show_error_messages)
{
#ifdef ENABLE_ERROR_MESSAGES
- __wimlib_print_errors = show_error_messages;
+ wimlib_print_errors = show_error_messages;
return 0;
#else
if (show_error_messages)
return WIMLIB_ERR_UNSUPPORTED;
+ else
+ return 0;
#endif
}
static const char *error_strings[] = {
[WIMLIB_ERR_SUCCESS]
= "Success",
+ [WIMLIB_ERR_ALREADY_LOCKED]
+ = "The WIM is already locked for writing",
[WIMLIB_ERR_COMPRESSED_LOOKUP_TABLE]
= "Lookup table is compressed",
[WIMLIB_ERR_DECOMPRESSION]
= "Failed to decompress compressed data",
[WIMLIB_ERR_DELETE_STAGING_DIR]
= "Failed to delete staging directory",
+ [WIMLIB_ERR_FILESYSTEM_DAEMON_CRASHED]
+ = "The process servicing the mounted WIM has crashed",
[WIMLIB_ERR_FORK]
= "Failed to fork another process",
[WIMLIB_ERR_FUSE]
= "An entry in the WIM's lookup table is invalid",
[WIMLIB_ERR_INVALID_PARAM]
= "An invalid parameter was given",
+ [WIMLIB_ERR_INVALID_PART_NUMBER]
+ = "The part number or total parts of the WIM is invalid",
[WIMLIB_ERR_INVALID_RESOURCE_HASH]
= "The SHA1 message digest of a WIM resource did not match the expected value",
+ [WIMLIB_ERR_ICONV_NOT_AVAILABLE]
+ = "The iconv() function does not seem to work. "
+ "Maybe check to make sure the directory /usr/lib/gconv exists",
[WIMLIB_ERR_INVALID_RESOURCE_SIZE]
= "A resource entry in the WIM has an invalid size",
+ [WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE]
+ = "The version of wimlib that has mounted a WIM image is incompatible with the "
+ "version being used to unmount it",
+ [WIMLIB_ERR_INVALID_UTF8_STRING]
+ = "A string provided as input by the user was not a valid UTF-8 string",
+ [WIMLIB_ERR_INVALID_UTF16_STRING]
+ = "A string in a WIM dentry is not a valid UTF-16LE string",
+ [WIMLIB_ERR_LIBXML_UTF16_HANDLER_NOT_AVAILABLE]
+ = "libxml2 was unable to find a character encoding conversion handler "
+ "for UTF-16LE",
[WIMLIB_ERR_LINK]
= "Failed to create a hard or symbolic link when extracting "
"a file from the WIM",
= "Could not read the target of a symbolic link",
[WIMLIB_ERR_RENAME]
= "Could not rename a file",
+ [WIMLIB_ERR_REOPEN]
+ = "Could not re-open the WIM after overwriting it",
+ [WIMLIB_ERR_RESOURCE_ORDER]
+ = "The components of the WIM were arranged in an unexpected order",
[WIMLIB_ERR_SPECIAL_FILE]
= "Encountered a special file that cannot be archived",
[WIMLIB_ERR_SPLIT_INVALID]
= "The WIM is part of a split WIM, which is not supported for this operation",
[WIMLIB_ERR_STAT]
= "Could not read the metadata for a file or directory",
- [WIMLIB_ERR_TIMEOUT]
- = "Timed out",
[WIMLIB_ERR_UNKNOWN_VERSION]
= "The WIM file is marked with an unknown version number",
[WIMLIB_ERR_UNSUPPORTED]
#endif
}
+static bool seeded = false;
-
-static iconv_t cd_utf16_to_utf8 = (iconv_t)(-1);
-
-/* Converts a string in the UTF-16 encoding to a newly allocated string in the
- * UTF-8 encoding. */
-char *utf16_to_utf8(const char *utf16_str, size_t utf16_len,
- size_t *utf8_len_ret)
-{
- if (cd_utf16_to_utf8 == (iconv_t)(-1)) {
- cd_utf16_to_utf8 = iconv_open("UTF-8", "UTF-16LE");
- if (cd_utf16_to_utf8 == (iconv_t)-1) {
- ERROR_WITH_ERRNO("Failed to get conversion descriptor "
- "for converting UTF-16LE to UTF-8");
- return NULL;
- }
- }
- size_t utf16_bytes_left = utf16_len;
- size_t utf8_bytes_left = utf16_len;
-
- char *utf8_str = MALLOC(utf8_bytes_left);
- if (!utf8_str)
- return NULL;
-
- char *orig_utf8_str = utf8_str;
-
- size_t num_chars_converted = iconv(cd_utf16_to_utf8, (char**)&utf16_str,
- &utf16_bytes_left, &utf8_str, &utf8_bytes_left);
-
- if (num_chars_converted == (size_t)(-1)) {
- ERROR_WITH_ERRNO("Failed to convert UTF-16LE string to UTF-8 "
- "string");
- FREE(orig_utf8_str);
- return NULL;
- }
-
- size_t utf8_len = utf16_len - utf8_bytes_left;
-
- *utf8_len_ret = utf8_len;
- orig_utf8_str[utf8_len] = '\0';
- return orig_utf8_str;
-}
-
-static iconv_t cd_utf8_to_utf16 = (iconv_t)(-1);
-
-/* Converts a string in the UTF-8 encoding to a newly allocated string in the
- * UTF-16 encoding. */
-char *utf8_to_utf16(const char *utf8_str, size_t utf8_len,
- size_t *utf16_len_ret)
-{
- if (cd_utf8_to_utf16 == (iconv_t)(-1)) {
- cd_utf8_to_utf16 = iconv_open("UTF-16LE", "UTF-8");
- if (cd_utf8_to_utf16 == (iconv_t)-1) {
- ERROR_WITH_ERRNO("Failed to get conversion descriptor "
- "for converting UTF-8 to UTF-16LE");
- return NULL;
- }
- }
-
- size_t utf8_bytes_left = utf8_len;
- size_t utf16_capacity = utf8_len * 4;
- size_t utf16_bytes_left = utf16_capacity;
-
- char *utf16_str = MALLOC(utf16_capacity + 2);
- if (!utf16_str)
- return NULL;
-
- char *orig_utf16_str = utf16_str;
-
- size_t num_chars_converted = iconv(cd_utf8_to_utf16, (char**)&utf8_str,
- &utf8_bytes_left, &utf16_str, &utf16_bytes_left);
-
- if (num_chars_converted == (size_t)(-1)) {
- ERROR_WITH_ERRNO("Failed to convert UTF-8 string to UTF-16LE "
- "string");
- FREE(orig_utf16_str);
- return NULL;
- }
-
- size_t utf16_len = utf16_capacity - utf16_bytes_left;
-
- *utf16_len_ret = utf16_len;
- orig_utf16_str[utf16_len] = '\0';
- orig_utf16_str[utf16_len + 1] = '\0';
- return orig_utf16_str;
-}
-
-/* Write @n bytes from @buf to the file descriptor @fd, retrying on interupt and
- * on short writes.
- *
- * Returns short count and set errno on failure. */
-ssize_t full_write(int fd, const void *buf, size_t n)
+static void seed_random()
{
- const char *p = buf;
- ssize_t ret;
- ssize_t total = 0;
-
- while (total != n) {
- ret = write(fd, p, n);
- if (ret < 0) {
- if (errno == EINTR)
- continue;
- else
- break;
- }
- total += ret;
- p += ret;
- }
- return total;
+ srand(time(NULL) * getpid());
+ seeded = true;
}
-
-static bool seeded = false;
-
/* Fills @n bytes pointed to by @p with random alphanumeric characters. */
void randomize_char_array_with_alnum(char p[], size_t n)
{
- int r;
-
- if (!seeded) {
- srand(time(NULL));
- seeded = true;
- }
+ if (!seeded)
+ seed_random();
while (n--) {
- r = rand() % 62;
+ int r = rand() % 62;
if (r < 26)
*p++ = r + 'a';
else if (r < 52)
/* Fills @n bytes pointer to by @p with random numbers. */
void randomize_byte_array(u8 *p, size_t n)
{
- if (!seeded) {
- srand(time(NULL));
- seeded = true;
- }
+ if (!seeded)
+ seed_random();
while (n--)
*p++ = rand();
}
return timeval_to_wim_timestamp(&tv);
}
-
+void wim_timestamp_to_str(u64 timestamp, char *buf, size_t len)
+{
+ struct tm tm;
+ time_t t = wim_timestamp_to_unix(timestamp);
+ gmtime_r(&t, &tm);
+ strftime(buf, len, "%a %b %d %H:%M:%S %Y UTC", &tm);
+}
git://wimlib.net / wimlib / blobdiff