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saves.cpp: Add a bit more clarity to what scan_savestates() is actually doing, which is to concatenate a file extension to a base file name, and then use the resultant file name for a check.

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rogerman
2025-09-02 14:17:21 -07:00
parent 9f009f4856
commit 6754adff86
1 changed files with 13 additions and 6 deletions
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19
desmume/src/saves.cpp
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@@ -662,15 +662,24 @@ void scan_savestates()
#endif
char filename[MAX_PATH + 1];
path.getpathnoext(path.STATE_SLOTS, filename);
const size_t filenameLen = strlen(filename);
const size_t extLen = strlen(".ds");
const size_t numberLen = strlen("-2147483648"); // Longest possible string length for a 32-bit int
clear_savestates();
if ((filenameLen + extLen + numberLen) >= MAX_PATH)
{
return;
}
char *filenameExt = filename + filenameLen;
for (int i = 0; i < NB_STATES; i++)
{
path.getpathnoext(path.STATE_SLOTS, filename);
if (strlen(filename) + strlen(".dst") + strlen("-2147483648") /* = biggest string for i */ > MAX_PATH) return;
snprintf(filename + strlen(filename), sizeof(filename), ".ds%d", i);
snprintf(filenameExt, extLen + numberLen, ".ds%d", i);
#ifdef _MSC_VER
wchar_t wgarbage[1024] = {0};
@@ -683,8 +692,6 @@ void scan_savestates()
strncpy(savestates[i].date, format_time(sbuf.st_mtime), 40);
savestates[i].date[40 - 1] = '\0';
}
return;
}
void savestate_slot(int num)