Avoid using SEEK_END when possible

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6917 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
anders_k 2017-10-05 18:11:03 +00:00
parent 1ae118af99
commit 5f1651ab91
4 changed files with 44 additions and 53 deletions

View file

@ -3974,34 +3974,16 @@ int CEXEBuild::load_stub()
}
int CEXEBuild::update_exehead(const tstring& file, size_t *size/*=NULL*/) {
FILE *tmpfile = FOPEN(file.c_str(), ("rb"));
if (!tmpfile)
{
ERROR_MSG(_T("Error: opening stub \"%") NPRIs _T("\"\n"), file.c_str());
return PS_ERROR;
}
fseek(tmpfile, 0, SEEK_END);
size_t exehead_size = ftell(tmpfile);
unsigned char *exehead = new unsigned char[exehead_size];
fseek(tmpfile, 0, SEEK_SET);
if (fread(exehead, 1, exehead_size, tmpfile) != exehead_size)
unsigned long exehead_size;
unsigned char *exehead = alloc_and_read_file(file.c_str(), exehead_size);
if (!exehead)
{
ERROR_MSG(_T("Error: reading stub \"%") NPRIs _T("\"\n"), file.c_str());
fclose(tmpfile);
delete [] exehead;
return PS_ERROR;
}
fclose(tmpfile);
update_exehead(exehead, exehead_size);
if (size)
*size = exehead_size;
delete [] exehead;
if (size) *size = exehead_size;
free(exehead);
return PS_OK;
}