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Fix buffer overflow when quotemargin>255

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This commit is contained in:
Stas Degteff 2005-09-15 19:29:51 +00:00
parent 1def986046
commit 15e481d62d
1 changed files with 14 additions and 1 deletions
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15
golded3/getpls.cpp
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@ -24,6 +24,10 @@
// Template handling.
// ------------------------------------------------------------------
#if defined(__MINGW32__) || defined(_MSC_VER)
#include <malloc.h>
#endif
#if defined(_MSC_VER) && defined(_DEBUG)
/* C4786: 'identifier' : identifier was truncated to 'number'
characters in the debug information
@ -83,7 +87,12 @@ int TemplateToText(int mode, GMsg* msg, GMsg* oldmsg, const char* tpl, int origa
uint ctrlinfo;
char textfile[GMAXPATH];
char indexfile[GMAXPATH];
char buf[256];
#if defined(__MINGW32__) || defined(_MSC_VER)
size_t sizeofbuf = CFG->quotemargin + 256;
char *buf = (char*)alloca(sizeofbuf);
#else
__extension__ char buf[CFG->quotemargin + 256];
#endif
char initials[10];
char quotestr[100];
char qbuf[100];
@ -317,7 +326,11 @@ int TemplateToText(int mode, GMsg* msg, GMsg* oldmsg, const char* tpl, int origa
size_t oldmsg_size = oldmsg->txt ? strlen(oldmsg->txt) : REALLOC_CACHE_SIZE;
size_t msg_txt_realloc_cache = 0;
#if defined(__MINGW32__) || defined(_MSC_VER)
while(fgets(buf, sizeofbuf, fp)) {
#else
while(fgets(buf, sizeof(buf), fp)) {
#endif
ptr = strskip_wht(buf);
if(*ptr != ';') {
bool chg = false;