zakarya/puzzles
1
0
Fork 0
mirror of git://git.tartarus.org/simon/puzzles.git synced 2025-04-20 23:51:29 -07:00
Code Issues Packages Projects Releases Wiki Activity

Fix memory leaks in Keen's validate_desc()

Browse Source 
Keen uses a DSF to validate its game descriptions and almost always
failed to free it, even when the validation succeeded.
This commit is contained in:
Ben Harris
2023-02-13 09:31:03 +00:00
parent c139aba078
commit bb31efdbc9
1 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
keen.c
View File

@ -1310,8 +1310,10 @@ static const char *validate_desc(const game_params *params, const char *desc)
return ret;
}
if (*p != ',')
if (*p != ',') {
sfree(dsf);
return "Expected ',' after block structure description";
}
p++;
/*
@ -1323,17 +1325,22 @@ static const char *validate_desc(const game_params *params, const char *desc)
if (*p == 'a' || *p == 'm') {
/* these clues need no validation */
} else if (*p == 'd' || *p == 's') {
if (dsf_size(dsf, i) != 2)
if (dsf_size(dsf, i) != 2) {
sfree(dsf);
return "Subtraction and division blocks must have area 2";
}
} else if (!*p) {
sfree(dsf);
return "Too few clues for block structure";
} else {
sfree(dsf);
return "Unrecognised clue type";
}
p++;
while (*p && isdigit((unsigned char)*p)) p++;
}
}
sfree(dsf);
if (*p)
return "Too many clues for block structure";