sbase

suckless unix tools
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commit 3ef662c988b01cb6be993f4cb0cd749a7e20105b
parent cc2d762798aa710b7e0cc916d6523ef5b7c92f2a
Author: sin <sin@2f30.org>
Date:   Thu, 23 Jan 2014 20:05:01 +0000

Check snprintf() return value

Diffstat:
du.c | 10++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/du.c b/du.c @@ -137,11 +137,13 @@ du(const char *path) m = nblks(&st); n += m; if (aflag && !sflag) { - if (S_ISLNK(st.st_mode)) - snprintf(file, sizeof(file), "%s/%s", - cwd, dent->d_name); - else + if (S_ISLNK(st.st_mode)) { + if (snprintf(file, sizeof(file), "%s/%s", + cwd, dent->d_name) >= sizeof(file)) + enprintf(EXIT_FAILURE, "path too long\n"); + } else { realpath(dent->d_name, file); + } print(m, file); } }