29,34 → 29,28 |
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int svarlang_autoload_exepath(const char *selfexe, const char *lang) { |
unsigned short selflen; |
char self_ext_backup[3]; |
char *self_ext_ptr; |
unsigned long self_ext_backup; |
unsigned long *self_ext_ptr; |
int res; |
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/* validate selfexe: must be at least 5 bytes long and 4th char from end must |
* be a dot (like "a.exe" or "c:\b.com" or "..\..\test\run.exe") */ |
if (selfexe == NULL) return(-1); |
if (selfexe == NULL) return(-200); |
for (selflen = 0; selfexe[selflen] != 0; selflen++); |
if ((selflen < 5) || (selfexe[selflen - 4] != '.')) return(-2); |
if ((selflen < 5) || (selfexe[selflen - 4] != '.')) return(-200); |
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self_ext_ptr = (char *)selfexe + selflen - 3; /* disregard CONST (I revert original content later, so the caller won't notice */ |
self_ext_ptr = (void *)(selfexe + selflen - 3); /* disregard CONST (I revert original content later, so the caller won't notice */ |
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/* copy extension to buffer and replace it with "lng" */ |
self_ext_backup[0] = self_ext_ptr[0]; |
self_ext_backup[1] = self_ext_ptr[1]; |
self_ext_backup[2] = self_ext_ptr[2]; |
self_ext_backup = *self_ext_ptr; |
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self_ext_ptr[0] = 'L'; |
self_ext_ptr[1] = 'N'; |
self_ext_ptr[2] = 'G'; |
*self_ext_ptr = 0x00474E4Cl; /* "LNG\0" */ |
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/* try loading it now */ |
res = svarlang_load(selfexe, lang); |
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/* restore the original filename and quit */ |
self_ext_ptr[0] = self_ext_backup[0]; |
self_ext_ptr[1] = self_ext_backup[1]; |
self_ext_ptr[2] = self_ext_backup[2]; |
*self_ext_ptr = self_ext_backup; |
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return(res); |
} |