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pawndisasm: Fix crash when loading debug info

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This complements commit 8383e5bbbf0ead53ce198cca276eba441535ca59.

Fixes #38.
This commit is contained in:
Zeex 2014-12-22 23:27:49 +06:00
parent 531d72d8cc
commit 8bb8671f1e
1 changed files with 3 additions and 4 deletions
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7
source/amx/amxdbg.c
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@ -144,20 +144,19 @@ int AMXAPI dbg_LoadInfo(AMX_DBG *amxdbg, FILE *fp)
amx_Align32((uint32_t*)&amxdbg->linetbl[index].line); amx_Align32((uint32_t*)&amxdbg->linetbl[index].line);
} /* for */ } /* for */
#endif #endif
ptr += dbghdr.lines * sizeof(AMX_DBG_LINE); ptr += (uint16_t)dbghdr.lines * sizeof(AMX_DBG_LINE);
/* detect dbghdr.lines overflow */ /* detect dbghdr.lines overflow */
while ((line = (AMX_DBG_LINE *)ptr) while ((line = (AMX_DBG_LINE *)ptr)
&& (cell)line->address > (cell)(line - 1)->address) { && (cell)line->address > (cell)(line - 1)->address) {
dbghdr.lines = -1;
#if BYTE_ORDER==BIG_ENDIAN #if BYTE_ORDER==BIG_ENDIAN
for (index = 0; index <= dbghdr.lines; index++) { for (index = 0; index <= UINT16_MAX; index++) {
amx_AlignCell(&linetbl[index].address); amx_AlignCell(&linetbl[index].address);
amx_Align32((uint32_t*)&linetbl[index].line); amx_Align32((uint32_t*)&linetbl[index].line);
line++; line++;
} /* for */ } /* for */
#endif #endif
ptr += ((uint32_t)dbghdr.lines + 1) * sizeof(AMX_DBG_LINE); ptr += ((uint32_t)UINT16_MAX + 1) * sizeof(AMX_DBG_LINE);
} /* while */ } /* while */
/* symbol table (plus index tags) */ /* symbol table (plus index tags) */