For anyone in the unenviable position of needing [1] to run Python scripts with the setuid bit on, there is an
suid-python wrapper [2] that makes this possible.
When I compiled it I was given a couple warnings. Can any one shed light on
what they mean?
==================================================================
suid-python.c: In function ‘malloc_abort’:
suid-python.c:119:17: warning: format ‘%d’ expects argument of type ‘int’, but
argument 3 has type ‘size_t’ [-Wformat]
suid-python.c: In function ‘remove_env_prefix’:
suid-python.c:200:32: warning: cast from pointer to integer of different size
[-Wpointer-to-int-cast]
suid-python.c:201:32: warning: cast from pointer to integer of different size
[-Wpointer-to-int-cast]
==================================================================
and the code segments in question:
==================================================================
void *
malloc_abort(size_t size)
{
void *buf;
buf = malloc(size);
if (!buf)
{
fprintf(stderr, "Could not allocate %d bytes. errno=%d\n",
size, errno);
exit(1);
}
return buf;
}
------------------------------------------------------------------
int
remove_env_prefix(char **envp, char *prefix)
{
char **envp_read;
char **envp_write;
int prefix_len = strlen(prefix);
int removed_count = 0;
envp_write = envp;
for (envp_read = envp; *envp_read; envp_read++)
{
if (!strncmp(*envp_read, prefix, prefix_len))
{
/* Step past the environment variable that we don't want. */
removed_count++;
continue;
}
if (envp_read != envp_write)
{
*envp_write = *envp_read;
}
envp_write++;
}
/* Set the remaining slots to NULL. */
if (envp_write < envp_read)
{
memset(envp_write, 0, ((unsigned int) envp_read -
(unsigned int) envp_write));
}
return removed_count;
}
==================================================================
Thanks!
--
~Ethan~
[1] Need, or really really really convenient to have. ;)
[2] http://selliott.org/python/
--
https://mail.python.org/mailman/listinfo/python-list
