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Approvals: Jenkins Builder: Verified laforge: Looks good to me, approved
host: Don't pass -1 (converted to 255) as address

We initialize a local variable to -1, and if the user specifies
no address from the command line, we use this in the interface match
struct, which uses a uint8_t. This means 255 ends up in there, and
as a result no usb interface ever matches unless the user explicitly
specifies the -A command line argument.

With this patch any absent -A argument will result in ifm.addr == 0,
which means "don't match on address", and which is what we want here.

Change-Id: Iffb5fa406ddef00c7c15570ffca2c109b98d7a2d
---
M host/src/simtrace2-cardem-pcsc.c
M host/src/simtrace2-tool.c
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/host/src/simtrace2-cardem-pcsc.c b/host/src/simtrace2-cardem-pcsc.c
index 0eaf2c3..dabe693 100644
--- a/host/src/simtrace2-cardem-pcsc.c
+++ b/host/src/simtrace2-cardem-pcsc.c
@@ -587,7 +587,8 @@
ifm->configuration = config_id;
ifm->interface = if_num;
ifm->altsetting = altsetting;
- ifm->addr = addr;
+ if (addr > 0 && addr < 256)
+ ifm->addr = addr;
if (path)
osmo_strlcpy(ifm->path, path, sizeof(ifm->path));
transp->udp_fd = -1;
diff --git a/host/src/simtrace2-tool.c b/host/src/simtrace2-tool.c
index b0fac6c..fdf0d56 100644
--- a/host/src/simtrace2-tool.c
+++ b/host/src/simtrace2-tool.c
@@ -309,7 +309,8 @@
ifm->configuration = config_id;
ifm->interface = if_num;
ifm->altsetting = altsetting;
- ifm->addr = addr;
+ if (addr > 0 && addr < 256)
+ ifm->addr = addr;
if (path)
osmo_strlcpy(ifm->path, path, sizeof(ifm->path));
transp->usb_devh = osmo_libusb_open_claim_interface(NULL, NULL, ifm);

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Gerrit-Project: simtrace2
Gerrit-Branch: master
Gerrit-Change-Id: Iffb5fa406ddef00c7c15570ffca2c109b98d7a2d
Gerrit-Change-Number: 27397
Gerrit-PatchSet: 2
Gerrit-Owner: laforge <laforge@osmocom.org>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge@osmocom.org>
Gerrit-MessageType: merged