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Partially fix #537

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if size was zero, the inputstr array could contain stack garbage
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Wolfvak 2019-09-29 15:57:03 -03:00
parent 53708e64dc
commit 47312797e2
1 changed files with 3 additions and 1 deletions
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4
arm9/source/common/ui.c
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@ -920,7 +920,9 @@ bool ShowDataPrompt(u8* data, u32* size, const char *format, ...) {
bool ret = false; bool ret = false;
va_list va; va_list va;
if (*size > 64) *size = 64; if (*size == 0) *inputstr = 0;
else if (*size > 64) *size = 64;
for (u32 i = 0; i < *size; i++) for (u32 i = 0; i < *size; i++)
snprintf(inputstr + (2*i), 128 + 1 - (2*i), "%02X", (unsigned int) data[i]); snprintf(inputstr + (2*i), 128 + 1 - (2*i), "%02X", (unsigned int) data[i]);