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SERIAL: Avoid potential SEGFAULT when scandir() fails on Linux

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This commit is contained in:
Mark Pizzolato 2018-05-08 22:48:12 -07:00
parent 6a99ac81c6
commit 914d79c980
1 changed files with 2 additions and 2 deletions
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4
sim_serial.c
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@ -952,12 +952,12 @@ int ports = 0;
memset(list, 0, max*sizeof(*list)); memset(list, 0, max*sizeof(*list));
#if defined(__linux) || defined(__linux__) #if defined(__linux) || defined(__linux__)
if (1) { if (1) {
struct dirent **namelist; struct dirent **namelist = NULL;
struct stat st; struct stat st;
i = scandir("/sys/class/tty/", &namelist, NULL, NULL); i = scandir("/sys/class/tty/", &namelist, NULL, NULL);
while (i--) { while (0 < i--) {
if (strcmp(namelist[i]->d_name, ".") && if (strcmp(namelist[i]->d_name, ".") &&
strcmp(namelist[i]->d_name, "..")) { strcmp(namelist[i]->d_name, "..")) {
char path[1024], devicepath[1024], driverpath[1024]; char path[1024], devicepath[1024], driverpath[1024];