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| author | Connor Lane Smith <cls@lubutu.com> | 2011-05-16 23:35:14 +0100 |
|---|---|---|
| committer | Connor Lane Smith <cls@lubutu.com> | 2011-05-16 23:35:14 +0100 |
| commit | 3a60b19514705f7f61908fd727d2e69565ee1947 (patch) | |
| tree | 5346988068977145a924708dc40ef221d7cc7a9a /dmenu.c | |
| parent | fixed extra warnings (diff) | |
| download | dmenu-3a60b19514705f7f61908fd727d2e69565ee1947.tar.gz dmenu-3a60b19514705f7f61908fd727d2e69565ee1947.tar.bz2 dmenu-3a60b19514705f7f61908fd727d2e69565ee1947.zip | |
fix possible overflow
Diffstat (limited to 'dmenu.c')
| -rw-r--r-- | dmenu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/dmenu.c b/dmenu.c index a32131c..c4b7908 100644 --- a/dmenu.c +++ b/dmenu.c @@ -31,7 +31,7 @@ static void grabkeyboard(void); static void insert(const char *str, ssize_t n); static void keypress(XKeyEvent *ev); static void match(Bool sub); -static size_t nextrune(int incr); +static size_t nextrune(int inc); static void paste(void); static void readstdin(void); static void run(void); @@ -426,10 +426,10 @@ match(Bool sub) { } size_t -nextrune(int incr) { - size_t n, len = strlen(text); +nextrune(int inc) { + ssize_t n; - for(n = cursor + incr; n < len && (text[n] & 0xc0) == 0x80; n += incr); + for(n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc); return n; } |