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Functions | Variables

win32dlopen.c File Reference

#include "c.h"

Include dependency graph for win32dlopen.c:

Go to the source code of this file.

Functions

static void set_dl_error (void)

char * dlerror (void)

int dlclose (void *handle)

void * dlsym (void *handle, const char *symbol)

void * dlopen (const char *file, int mode)

Variables

static char last_dyn_error [512]

Function Documentation

◆ dlclose()

int dlclose ( void * handle )

Definition at line 49 of file win32dlopen.c.

50{

51 if (!FreeLibrary((HMODULE) handle))

52 {

53 set_dl_error();

54 return 1;

55 }

56 last_dyn_error[0] = 0;

57 return 0;

58}

last_dyn_error

static char last_dyn_error[512]

Definition: win32dlopen.c:18

set_dl_error

static void set_dl_error(void)

Definition: win32dlopen.c:21

References last_dyn_error, and set_dl_error().

Referenced by internal_load_library().

◆ dlerror()

char * dlerror ( void )

Definition at line 40 of file win32dlopen.c.

41{

42 if (last_dyn_error[0])

43 return last_dyn_error;

44 else

45 return NULL;

46}

References last_dyn_error.

Referenced by internal_load_library().

◆ dlopen()

void * dlopen ( const char * file,

int mode

)

Definition at line 76 of file win32dlopen.c.

77{

78 HMODULE h;

79 int prevmode;

80

81 /* Disable popup error messages when loading DLLs */

82 prevmode = SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);

83 h = LoadLibrary(file);

84 SetErrorMode(prevmode);

85

86 if (!h)

87 {

88 set_dl_error();

89 return NULL;

90 }

91 last_dyn_error[0] = 0;

92 return (void *) h;

93}

References last_dyn_error, and set_dl_error().

Referenced by internal_load_library().

◆ dlsym()

void * dlsym ( void * handle,

const char * symbol

)

Definition at line 61 of file win32dlopen.c.

62{

63 void *ptr;

64

65 ptr = GetProcAddress((HMODULE) handle, symbol);

66 if (!ptr)

67 {

68 set_dl_error();

69 return NULL;

70 }

71 last_dyn_error[0] = 0;

72 return ptr;

73}

symbol

unsigned char symbol

Definition: api.h:2

References last_dyn_error, and set_dl_error().

Referenced by internal_load_library(), load_external_function(), and lookup_external_function().

◆ set_dl_error()

static void set_dl_error ( void )

static

Definition at line 21 of file win32dlopen.c.

22{

23 DWORD err = GetLastError();

24

25 if (FormatMessage(FORMAT_MESSAGE_IGNORE_INSERTS |

26 FORMAT_MESSAGE_FROM_SYSTEM,

27 NULL,

28 err,

29 MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT),

30 last_dyn_error,

31 sizeof(last_dyn_error) - 1,

32 NULL) == 0)

33 {

34 snprintf(last_dyn_error, sizeof(last_dyn_error) - 1,

35 "unknown error %lu", err);

36 }

37}

err

void err(int eval, const char *fmt,...)

Definition: err.c:43

snprintf

#define snprintf

Definition: port.h:239

References err(), last_dyn_error, and snprintf.

Referenced by dlclose(), dlopen(), and dlsym().

Variable Documentation

◆ last_dyn_error

char last_dyn_error[512]

static

Definition at line 18 of file win32dlopen.c.

Referenced by dlclose(), dlerror(), dlopen(), dlsym(), and set_dl_error().