LLVM: Buffer Copy without Checking Size of Input (CWE-120)

[mmaraya]

cmds.c:1838:24: warning: the value of the size argument in 'strncat' is too large, might lead to a buffer overflow [-Wstrncat-size]
                        strncat(buf, *argv, sizeof(buf)-strlen(buf));
                                            ^~~~~~~~~~~~~~~~~~~~~~~
cmds.c:1838:24: note: change the argument to be the free space in the destination buffer minus the terminating null byte
                        strncat(buf, *argv, sizeof(buf)-strlen(buf));
                                            ^~~~~~~~~~~~~~~~~~~~~~~
                                            sizeof(buf) - strlen(buf) - 1