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[c-host] correct buffer size for stncat

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Geoffrey McRae 2019-03-01 21:03:10 +11:00
parent 6d6034870e
commit 1475845675
1 changed files with 3 additions and 3 deletions
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6
c-host/linux/platform.c
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@ -82,8 +82,8 @@ int main(int argc, char * argv[])
// get the device size // get the device size
{ {
char file[100] = "/sys/class/uio/"; char file[100] = "/sys/class/uio/";
strncat(file, params.shmDevice , sizeof(file)); strncat(file, params.shmDevice , sizeof(file) - 1);
strncat(file, "/maps/map0/size", sizeof(file)); strncat(file, "/maps/map0/size", sizeof(file) - 1);
int fd = open(file, O_RDONLY); int fd = open(file, O_RDONLY);
if (fd < 0) if (fd < 0)
@ -109,7 +109,7 @@ int main(int argc, char * argv[])
// open the device // open the device
{ {
char file[100] = "/dev/"; char file[100] = "/dev/";
strncat(file, params.shmDevice, sizeof(file)); strncat(file, params.shmDevice, sizeof(file) - 1);
app.shmFD = open(file, O_RDWR, (mode_t)0600); app.shmFD = open(file, O_RDWR, (mode_t)0600);
app.shmMap = MAP_FAILED; app.shmMap = MAP_FAILED;
if (app.shmFD < 0) if (app.shmFD < 0)