comparison ui/main.cpp @ 633:6c090638b2b4

Use static buffer for module file name. According to the msdn examle the return value of getmodulefilename should be used to indicate success and not the size. And according to comments on that function on Windows 8.1 it does not return the needed size. So better be more robust and just use max_path as a limit.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 23 Jun 2014 15:29:48 +0200
parents edf269b6e499
children 80d1a80b3e8d
comparison
equal deleted inserted replaced
632:9a18f096129d 633:6c090638b2b4
39 39
40 int main(int argc, char **argv) 40 int main(int argc, char **argv)
41 { 41 {
42 /* First verify integrity even before calling QApplication*/ 42 /* First verify integrity even before calling QApplication*/
43 #ifdef Q_OS_WIN 43 #ifdef Q_OS_WIN
44 DWORD sizeNeeded = GetModuleFileNameW (NULL, NULL, 0); 44 {
45 wchar_t wPath[sizeNeeded + 1]; 45 wchar_t wPath[MAX_PATH];
46 char *utf8path = NULL; 46 char *utf8path = NULL;
47 47
48 if (sizeNeeded == 0) { 48 if (!GetModuleFileNameW (NULL, wPath, MAX_PATH - 1)) {
49 PRINTLASTERROR ("Failed to obtain module file name"); 49 PRINTLASTERROR ("Failed to obtain module file name. Path too long?");
50 syslog_error_printf ("Integrity check failed."); 50 syslog_error_printf ("Integrity check failed.");
51 return -1; 51 return -1;
52 } 52 }
53 53
54 DWORD realSize = GetModuleFileNameW (NULL, wPath, sizeNeeded + 1); 54 /* wPath might not be 0 terminated */
55 wPath[MAX_PATH - 1] = '\0';
55 56
56 if (realSize != sizeNeeded) { 57 utf8path = wchar_to_utf8 (wPath, wcsnlen(wPath, MAX_PATH));
57 ERRORPRINTF ("Module name changed");
58 syslog_error_printf ("Integrity check failed.");
59 return -1;
60 }
61 58
62 utf8path = wchar_to_utf8 (wPath, sizeNeeded + 1); 59 if (utf8path == NULL) {
60 ERRORPRINTF ("Failed to convert module path to utf-8");
61 syslog_error_printf ("Integrity check failed.");
62 return -1;
63 }
63 64
64 if (utf8path == NULL) { 65 if (!verify_binary (utf8path, strlen(utf8path)) != VerifyValid)
65 ERRORPRINTF ("Failed to convert module path to utf-8"); 66 {
66 syslog_error_printf ("Integrity check failed."); 67 ERRORPRINTF ("Verification of the binary failed");
67 return -1; 68 syslog_error_printf ("Integrity check failed.");
68 } 69 xfree(utf8path);
70 #ifdef RELEASE_BUILD
71 return -1;
72 #endif
73 }
69 74
70 if (!verify_binary (utf8path, strlen(utf8path)) != VerifyValid)
71 {
72 syslog_error_printf ("Integrity check failed.");
73 xfree(utf8path); 75 xfree(utf8path);
74 #ifdef RELEASE_BUILD
75 return -1;
76 #endif
77 } 76 }
78
79 xfree(utf8path);
80 #else 77 #else
81 if (!verify_binary ("/proc/self/exe", 14) != VerifyValid) 78 if (!verify_binary ("/proc/self/exe", 14) != VerifyValid)
82 { 79 {
83 syslog_error_printf ("Integrity check failed."); 80 syslog_error_printf ("Integrity check failed.");
84 #ifdef RELEASE_BUILD 81 #ifdef RELEASE_BUILD

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