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author | Joachim Nilsson <troglobit@gmail.com> | 2019-09-23 09:45:49 +0200 |
---|---|---|
committer | Tobias Klauser <tklauser@distanz.ch> | 2019-09-23 10:03:19 +0200 |
commit | 29fb845dfcf988110d01c141fdd490163a6f3714 (patch) | |
tree | db16fe9b750da0932baf34d1dd87dfb66db37c0c | |
parent | c5b1ed4446f1da55f474c3eb5196825b19a08a05 (diff) |
trafgen: reset errno before calling sscanf in str2mac
When testing trafgen with the following example from the man page the
error message "Failed to parse MAC address 11:22:33:44:55:66" is
printed.
trafgen -o lo --cpus 1 -n 3 '{ eth(da=11:22:33:44:55:66, da[0]=dinc()), tcp() }'
Turns out errno was not cleared before str2mac() called sscanf().
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
-rw-r--r-- | str.c | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -143,6 +143,7 @@ int str2mac(const char *str, uint8_t *mac, size_t len) if (len < 6) return -ENOSPC; + errno = 0; count = sscanf(str, "%02X:%02X:%02X:%02X:%02X:%02X", &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]); |