fix issue with join option

1 files changed, 5 insertions, 1 deletions

diff --git a/src/lib/common.c b/src/lib/common.c
index fa988446b..d6dd43c4b 100644
--- a/src/lib/common.c
+++ b/src/lib/common.c
@@ -129,7 +129,7 @@ char *pid_proc_comm(const pid_t pid) {
         // open /proc/pid/cmdline file
         char *fname;
         int fd;
-        if (asprintf(&fname, "/proc/%d//comm", pid) == -1)
+        if (asprintf(&fname, "/proc/%d/comm", pid) == -1)
                 return NULL;
         if ((fd = open(fname, O_RDONLY)) < 0) {
                 free(fname);
@@ -154,6 +154,8 @@ char *pid_proc_comm(const pid_t pid) {
 
         // return a malloc copy of the command line
         char *rv = strdup(buffer);
+        if (!rv)
+                return NULL;
         if (strlen(rv) == 0) {
                 free(rv);
                 return NULL;
@@ -192,6 +194,8 @@ char *pid_proc_cmdline(const pid_t pid) {
 
         // return a malloc copy of the command line
         char *rv = strdup((char *) buffer);
+        if (!rv)
+                return NULL;
         if (strlen(rv) == 0) {
                 free(rv);
                 return NULL;