diff options
author | Connor Lane Smith <cls@lubutu.com> | 2011-05-16 23:35:14 +0100 |
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committer | Connor Lane Smith <cls@lubutu.com> | 2011-05-16 23:35:14 +0100 |
commit | 3a60b19514705f7f61908fd727d2e69565ee1947 (patch) | |
tree | 5346988068977145a924708dc40ef221d7cc7a9a | |
parent | dd2f298252fc21ff7d3b14296068443cb39c38d9 (diff) |
fix possible overflow
-rw-r--r-- | dmenu.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -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; } |