Rizin
unix-like reverse engineering framework and cli tools
Functions | Variables
zip_source_file_win32.c File Reference
#include "zip_source_file_win32.h"

Go to the source code of this file.

Functions

static bool _zip_win32_op_stat (zip_source_file_context_t *ctx, zip_source_file_stat_t *st)
 
static bool _zip_stat_win32 (zip_source_file_context_t *ctx, zip_source_file_stat_t *st, HANDLE h)
 
ZIP_EXTERN zip_source_t * zip_source_win32handle (zip_t *za, HANDLE h, zip_uint64_t start, zip_int64_t len)
 
ZIP_EXTERN zip_source_t * zip_source_win32handle_create (HANDLE h, zip_uint64_t start, zip_int64_t length, zip_error_t *error)
 
void _zip_win32_op_close (zip_source_file_context_t *ctx)
 
zip_int64_t _zip_win32_op_read (zip_source_file_context_t *ctx, void *buf, zip_uint64_t len)
 
bool _zip_win32_op_seek (zip_source_file_context_t *ctx, void *f, zip_int64_t offset, int whence)
 
zip_int64_t _zip_win32_op_tell (zip_source_file_context_t *ctx, void *f)
 
int _zip_win32_error_to_errno (DWORD win32err)
 
bool _zip_filetime_to_time_t (FILETIME ft, time_t *t)
 

Variables

static zip_source_file_operations_t ops_win32_read
 

Function Documentation

◆ _zip_filetime_to_time_t()

bool _zip_filetime_to_time_t ( FILETIME  ft,
time_t *  t 
)

Definition at line 213 of file zip_source_file_win32.c.

213  {
214  /*
215  Inspired by http://stackoverflow.com/questions/6161776/convert-windows-filetime-to-second-in-unix-linux
216  */
217  const zip_int64_t WINDOWS_TICK = 10000000LL;
218  const zip_int64_t SEC_TO_UNIX_EPOCH = 11644473600LL;
219  ULARGE_INTEGER li;
220  zip_int64_t secs;
221  time_t temp;
222 
223  li.LowPart = ft.dwLowDateTime;
224  li.HighPart = ft.dwHighDateTime;
225  secs = (li.QuadPart / WINDOWS_TICK - SEC_TO_UNIX_EPOCH);
226 
227  temp = (time_t)secs;
228  if (secs != (zip_int64_t)temp) {
229  return false;
230  }
231 
232  *t = temp;
233  return true;
234 }
time_t
int time_t
Definition: sftypes.h:66
zip_int64_t
int64_t zip_int64_t
Definition: zipconf.h:38

Referenced by _zip_stat_win32(), and _zip_win32_named_op_stat().

◆ _zip_stat_win32()

static bool _zip_stat_win32 ( zip_source_file_context_t *  ctx,
zip_source_file_stat_t *  st,
HANDLE  h 
)
static

Definition at line 178 of file zip_source_file_win32.c.

178  {
179  FILETIME mtimeft;
180  time_t mtime;
181  LARGE_INTEGER size;
182 
183  if (!GetFileTime(h, NULL, NULL, &mtimeft)) {
184  zip_error_set(&ctx->error, ZIP_ER_READ, _zip_win32_error_to_errno(GetLastError()));
185  return false;
186  }
187  if (!_zip_filetime_to_time_t(mtimeft, &mtime)) {
188  zip_error_set(&ctx->error, ZIP_ER_READ, ERANGE);
189  return false;
190  }
191 
192  st->exists = true;
193  st->mtime = mtime;
194 
195  if (GetFileType(h) == FILE_TYPE_DISK) {
196  st->regular_file = 1;
197 
198  if (!GetFileSizeEx(h, &size)) {
199  zip_error_set(&ctx->error, ZIP_ER_READ, _zip_win32_error_to_errno(GetLastError()));
200  return false;
201  }
202 
203  st->size = (zip_uint64_t)size.QuadPart;
204  }
205 
206  /* TODO: fill in ctx->attributes */
207 
208  return true;
209 }
NULL
#define NULL
Definition: cris-opc.c:27
size
voidpf void uLong size
Definition: ioapi.h:138
zip_error_set
ZIP_EXTERN void zip_error_set(zip_error_t *_Nullable, int, int)
Definition: zip_error.c:126
ZIP_ER_READ
#define ZIP_ER_READ
Definition: zip.h:110
ERANGE
#define ERANGE
Definition: sftypes.h:144
h
#define h(i)
Definition: sha256.c:48
ctx::error
zip_error_t * error
Definition: zip_algorithm_bzip2.c:41
zip_source_file_stat::regular_file
bool regular_file
Definition: zip_source_file.h:38
zip_source_file_stat::mtime
time_t mtime
Definition: zip_source_file.h:36
zip_source_file_stat::exists
bool exists
Definition: zip_source_file.h:37
zip_source_file_stat::size
zip_uint64_t size
Definition: zip_source_file.h:35
_zip_win32_error_to_errno
int _zip_win32_error_to_errno(DWORD win32err)
Definition: zip_source_file_win32.c:153
_zip_filetime_to_time_t
bool _zip_filetime_to_time_t(FILETIME ft, time_t *t)
Definition: zip_source_file_win32.c:213
zip_uint64_t
uint64_t zip_uint64_t
Definition: zipconf.h:39

References _zip_filetime_to_time_t(), _zip_win32_error_to_errno(), ERANGE, ctx::error, zip_source_file_stat::exists, h, zip_source_file_stat::mtime, NULL, zip_source_file_stat::regular_file, zip_source_file_stat::size, ZIP_ER_READ, and zip_error_set().

Referenced by _zip_win32_op_stat().

◆ _zip_win32_error_to_errno()

int _zip_win32_error_to_errno ( DWORD  win32err)

Definition at line 153 of file zip_source_file_win32.c.

153  {
154  /* Note: This list isn't exhaustive, but should cover common cases. */
155  switch (win32err) {
156  case ERROR_INVALID_PARAMETER:
157  return EINVAL;
158  case ERROR_FILE_NOT_FOUND:
159  case ERROR_PATH_NOT_FOUND:
160  return ENOENT;
161  case ERROR_INVALID_HANDLE:
162  return EBADF;
163  case ERROR_ACCESS_DENIED:
164  return EACCES;
165  case ERROR_FILE_EXISTS:
166  return EEXIST;
167  case ERROR_TOO_MANY_OPEN_FILES:
168  return EMFILE;
169  case ERROR_DISK_FULL:
170  return ENOSPC;
171  default:
172  return 10000 + win32err;
173  }
174 }
ENOENT
#define ENOENT
Definition: sftypes.h:112
ENOSPC
#define ENOSPC
Definition: sftypes.h:138
EEXIST
#define EEXIST
Definition: sftypes.h:127
EINVAL
#define EINVAL
Definition: sftypes.h:132
EMFILE
#define EMFILE
Definition: sftypes.h:134
EACCES
#define EACCES
Definition: sftypes.h:123
EBADF
#define EBADF
Definition: sftypes.h:119

References EACCES, EBADF, EEXIST, EINVAL, EMFILE, ENOENT, and ENOSPC.

Referenced by _zip_stat_win32(), _zip_win32_named_op_commit_write(), _zip_win32_named_op_create_temp_output(), _zip_win32_named_op_remove(), _zip_win32_named_op_stat(), _zip_win32_named_op_write(), _zip_win32_op_read(), _zip_win32_op_seek(), _zip_win32_op_tell(), and win32_named_open().

◆ _zip_win32_op_close()

void _zip_win32_op_close ( zip_source_file_context_t *  ctx)

Definition at line 82 of file zip_source_file_win32.c.

82  {
83  CloseHandle((HANDLE)ctx->f);
84 }
HANDLE
DWORD * HANDLE
Definition: windows_debug.h:119

References HANDLE.

◆ _zip_win32_op_read()

zip_int64_t _zip_win32_op_read ( zip_source_file_context_t *  ctx,
void *  buf,
zip_uint64_t  len 
)

Definition at line 88 of file zip_source_file_win32.c.

88  {
89  DWORD i;
90 
91  /* TODO: cap len to "DWORD_MAX" */
92  if (!ReadFile((HANDLE)ctx->f, buf, (DWORD)len, &i, NULL)) {
93  zip_error_set(&ctx->error, ZIP_ER_READ, _zip_win32_error_to_errno(GetLastError()));
94  return -1;
95  }
96 
97  return (zip_int64_t)i;
98 }
len
size_t len
Definition: 6502dis.c:15
i
lzma_index ** i
Definition: index.h:629
buf
voidpf void * buf
Definition: ioapi.h:138
DWORD
DWORD
Definition: windows_debug.h:119

References _zip_win32_error_to_errno(), DWORD, ctx::error, HANDLE, i, len, NULL, ZIP_ER_READ, and zip_error_set().

◆ _zip_win32_op_seek()

bool _zip_win32_op_seek ( zip_source_file_context_t *  ctx,
void *  f,
zip_int64_t  offset,
int  whence 
)

Definition at line 102 of file zip_source_file_win32.c.

102  {
103  LARGE_INTEGER li;
104  DWORD method;
105 
106  switch (whence) {
107  case SEEK_SET:
108  method = FILE_BEGIN;
109  break;
110  case SEEK_END:
111  method = FILE_END;
112  break;
113  case SEEK_CUR:
114  method = FILE_CURRENT;
115  break;
116  default:
117  zip_error_set(&ctx->error, ZIP_ER_SEEK, EINVAL);
118  return false;
119  }
120 
121  li.QuadPart = (LONGLONG)offset;
122  if (!SetFilePointerEx((HANDLE)f, li, NULL, method)) {
123  zip_error_set(&ctx->error, ZIP_ER_SEEK, _zip_win32_error_to_errno(GetLastError()));
124  return false;
125  }
126 
127  return true;
128 }
offset
voidpf uLong offset
Definition: ioapi.h:144
ZIP_ER_SEEK
#define ZIP_ER_SEEK
Definition: zip.h:109
f
#define f(i)
Definition: sha256.c:46
SEEK_SET
#define SEEK_SET
Definition: zip.c:88
SEEK_CUR
#define SEEK_CUR
Definition: zip.c:80
SEEK_END
#define SEEK_END
Definition: zip.c:84

References _zip_win32_error_to_errno(), DWORD, EINVAL, ctx::error, f, HANDLE, NULL, SEEK_CUR, SEEK_END, SEEK_SET, ZIP_ER_SEEK, and zip_error_set().

◆ _zip_win32_op_stat()

static bool _zip_win32_op_stat ( zip_source_file_context_t *  ctx,
zip_source_file_stat_t *  st 
)
static

Definition at line 132 of file zip_source_file_win32.c.

132  {
133  return _zip_stat_win32(ctx, st, (HANDLE)ctx->f);
134 }
_zip_stat_win32
static bool _zip_stat_win32(zip_source_file_context_t *ctx, zip_source_file_stat_t *st, HANDLE h)
Definition: zip_source_file_win32.c:178

References _zip_stat_win32(), and HANDLE.

◆ _zip_win32_op_tell()

zip_int64_t _zip_win32_op_tell ( zip_source_file_context_t *  ctx,
void *  f 
)

Definition at line 138 of file zip_source_file_win32.c.

138  {
139  LARGE_INTEGER zero;
140  LARGE_INTEGER new_offset;
141 
142  zero.QuadPart = 0;
143  if (!SetFilePointerEx((HANDLE)f, zero, &new_offset, FILE_CURRENT)) {
144  zip_error_set(&ctx->error, ZIP_ER_SEEK, _zip_win32_error_to_errno(GetLastError()));
145  return -1;
146  }
147 
148  return (zip_int64_t)new_offset.QuadPart;
149 }

References _zip_win32_error_to_errno(), ctx::error, f, HANDLE, ZIP_ER_SEEK, and zip_error_set().

◆ zip_source_win32handle()

ZIP_EXTERN zip_source_t* zip_source_win32handle ( zip_t *  za,
HANDLE  h,
zip_uint64_t  start,
zip_int64_t  len 
)

Definition at line 61 of file zip_source_file_win32.c.

61  {
62  if (za == NULL) {
63  return NULL;
64  }
65 
66  return zip_source_win32handle_create(h, start, len, &za->error);
67 }
start
static static sync static getppid static getegid const char static filename char static len const char char static bufsiz static mask static vfork const void static prot static getpgrp const char static swapflags static arg static fd static protocol static who struct sockaddr static addrlen static backlog struct timeval struct timezone static tz const struct iovec static count static mode const void const struct sockaddr static tolen const char static pathname void static offset struct stat static buf void long static basep static whence static length const void static len static semflg const void static shmflg const struct timespec struct timespec static rem const char static group const void start
Definition: sflib.h:133
zip::error
zip_error_t error
Definition: zipint.h:281
zip_source_win32handle_create
ZIP_EXTERN zip_source_t * zip_source_win32handle_create(HANDLE h, zip_uint64_t start, zip_int64_t length, zip_error_t *error)
Definition: zip_source_file_win32.c:71
za
zip_t * za
Definition: ziptool.c:79

References zip::error, h, len, NULL, start, za, and zip_source_win32handle_create().

◆ zip_source_win32handle_create()

ZIP_EXTERN zip_source_t* zip_source_win32handle_create ( HANDLE  h,
zip_uint64_t  start,
zip_int64_t  length,
zip_error_t *  error 
)

Definition at line 71 of file zip_source_file_win32.c.

71  {
72  if (h == INVALID_HANDLE_VALUE || length < -1) {
73  zip_error_set(error, ZIP_ER_INVAL, 0);
74  return NULL;
75  }
76 
77  return zip_source_file_common_new(NULL, h, start, length, NULL, &ops_win32_read, NULL, error);
78 }
length
static static sync static getppid static getegid const char static filename char static len const char char static bufsiz static mask static vfork const void static prot static getpgrp const char static swapflags static arg static fd static protocol static who struct sockaddr static addrlen static backlog struct timeval struct timezone static tz const struct iovec static count static mode const void const struct sockaddr static tolen const char static pathname void static offset struct stat static buf void long static basep static whence static length const void static len static semflg const void static shmflg const struct timespec struct timespec static rem const char static group const void length
Definition: sflib.h:133
INVALID_HANDLE_VALUE
#define INVALID_HANDLE_VALUE
Definition: iowin32.c:21
ZIP_ER_INVAL
#define ZIP_ER_INVAL
Definition: zip.h:123
error
void error(const char *msg)
Definition: untgz.c:593
zip_source_file_common_new
zip_source_t * zip_source_file_common_new(const char *fname, void *file, zip_uint64_t start, zip_int64_t len, const zip_stat_t *st, zip_source_file_operations_t *ops, void *ops_userdata, zip_error_t *error)
Definition: zip_source_file_common.c:53
ops_win32_read
static zip_source_file_operations_t ops_win32_read
Definition: zip_source_file_win32.c:42

References error(), h, INVALID_HANDLE_VALUE, length, NULL, ops_win32_read, start, ZIP_ER_INVAL, zip_error_set(), and zip_source_file_common_new().

Referenced by zip_source_win32handle().

Variable Documentation

◆ ops_win32_read

zip_source_file_operations_t ops_win32_read
static
Initial value:
= {
_zip_win32_op_close,
NULL,
NULL,
NULL,
NULL,
_zip_win32_op_read,
NULL,
NULL,
_zip_win32_op_seek,
_zip_win32_op_stat,
NULL,
_zip_win32_op_tell,
NULL
}
_zip_win32_op_close
void _zip_win32_op_close(zip_source_file_context_t *ctx)
Definition: zip_source_file_win32.c:82
_zip_win32_op_tell
zip_int64_t _zip_win32_op_tell(zip_source_file_context_t *ctx, void *f)
Definition: zip_source_file_win32.c:138
_zip_win32_op_stat
static bool _zip_win32_op_stat(zip_source_file_context_t *ctx, zip_source_file_stat_t *st)
Definition: zip_source_file_win32.c:132
_zip_win32_op_read
zip_int64_t _zip_win32_op_read(zip_source_file_context_t *ctx, void *buf, zip_uint64_t len)
Definition: zip_source_file_win32.c:88
_zip_win32_op_seek
bool _zip_win32_op_seek(zip_source_file_context_t *ctx, void *f, zip_int64_t offset, int whence)
Definition: zip_source_file_win32.c:102

Definition at line 42 of file zip_source_file_win32.c.

Referenced by zip_source_win32handle_create().