diff options
| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2021-02-01 20:41:27 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-02-01 20:41:27 -0500 |
| commit | cf8ba91e32f01eb889471499f0f2bbb422a7fb8f (patch) | |
| tree | 2d10688ac41b9e427e34f9917cfa2ecc64809f56 /lib/printf/vfprintf.c | |
| parent | 578d772bc1660b1180c9f19ca59f8566740f58c0 (diff) | |
| parent | 738cca0ab4b900e2ecdb1ab28bc431fca014e6b0 (diff) | |
Merge pull request #7994 from opensourcerouting/disable-printf-n
lib/printf: disable `%n` specifier
Diffstat (limited to 'lib/printf/vfprintf.c')
| -rw-r--r-- | lib/printf/vfprintf.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/printf/vfprintf.c b/lib/printf/vfprintf.c index 6ffccb3811..a0634cde4b 100644 --- a/lib/printf/vfprintf.c +++ b/lib/printf/vfprintf.c @@ -503,6 +503,11 @@ reswitch: switch (ch) { size = (prec >= 0) ? strnlen(cp, prec) : strlen(cp); sign = '\0'; break; +#ifdef DANGEROUS_PERCENT_N + /* FRR does not use %n in printf formats. This is just left + * here in case someone tries to use %n and starts debugging + * why the f* it doesn't work + */ case 'n': /* * Assignment-like behavior is specified if the @@ -526,6 +531,7 @@ reswitch: switch (ch) { else *GETARG(int *) = ret; continue; /* no output */ +#endif case 'O': flags |= LONGINT; /*FALLTHROUGH*/ |