diff options
Diffstat (limited to 'src/librc-misc.c')
| -rw-r--r-- | src/librc-misc.c | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/src/librc-misc.c b/src/librc-misc.c index 4a97ae00..01baf4a5 100644 --- a/src/librc-misc.c +++ b/src/librc-misc.c @@ -6,15 +6,6 @@ #include "librc.h" - -#define PROFILE_ENV "/etc/profile.env" -#define SYS_WHITELIST RC_LIBDIR "/conf.d/env_whitelist" -#define USR_WHITELIST "/etc/conf.d/env_whitelist" -#define RC_CONFIG "/etc/conf.d/rc" - -#define PATH_PREFIX RC_LIBDIR "/bin:/bin:/sbin:/usr/bin:/usr/sbin" - - bool rc_env_bool (const char *var) { char *v; @@ -228,281 +219,3 @@ char **rc_config_list (const char *file) return (list); } librc_hidden_def(rc_config_list) - -char **rc_env_filter (void) -{ - char **env = NULL; - char **whitelist = NULL; - char *env_name = NULL; - char **profile = NULL; - int count = 0; - bool got_path = false; - char *env_var; - int env_len; - char *p; - char *token; - char *sep; - char *e; - int pplen = strlen (PATH_PREFIX); - - whitelist = rc_config_list (SYS_WHITELIST); - if (! whitelist) - fprintf (stderr, "system environment whitelist (" SYS_WHITELIST ") missing\n"); - - env = rc_config_list (USR_WHITELIST); - rc_strlist_join (&whitelist, env); - rc_strlist_free (env); - env = NULL; - - if (! whitelist) - return (NULL); - - if (rc_exists (PROFILE_ENV)) - profile = rc_config_load (PROFILE_ENV); - - STRLIST_FOREACH (whitelist, env_name, count) { - char *space = strchr (env_name, ' '); - if (space) - *space = 0; - - env_var = getenv (env_name); - - if (! env_var && profile) { - env_len = strlen (env_name) + strlen ("export ") + 1; - p = rc_xmalloc (sizeof (char *) * env_len); - snprintf (p, env_len, "export %s", env_name); - env_var = rc_config_value (profile, p); - free (p); - } - - if (! env_var) - continue; - - /* Ensure our PATH is prefixed with the system locations first - for a little extra security */ - if (strcmp (env_name, "PATH") == 0 && - strncmp (PATH_PREFIX, env_var, pplen) != 0) - { - got_path = true; - env_len = strlen (env_name) + strlen (env_var) + pplen + 2; - e = p = rc_xmalloc (sizeof (char *) * env_len); - p += snprintf (e, env_len, "%s=%s", env_name, PATH_PREFIX); - - /* Now go through the env var and only add bits not in our PREFIX */ - sep = env_var; - while ((token = strsep (&sep, ":"))) { - char *np = rc_xstrdup (PATH_PREFIX); - char *npp = np; - char *tok = NULL; - while ((tok = strsep (&npp, ":"))) - if (strcmp (tok, token) == 0) - break; - if (! tok) - p += snprintf (p, env_len - (p - e), ":%s", token); - free (np); - } - *p++ = 0; - } else { - env_len = strlen (env_name) + strlen (env_var) + 2; - e = rc_xmalloc (sizeof (char *) * env_len); - snprintf (e, env_len, "%s=%s", env_name, env_var); - } - - rc_strlist_add (&env, e); - free (e); - } - - /* We filtered the env but didn't get a PATH? Very odd. - However, we do need a path, so use a default. */ - if (! got_path) { - env_len = strlen ("PATH=") + strlen (PATH_PREFIX) + 2; - p = rc_xmalloc (sizeof (char *) * env_len); - snprintf (p, env_len, "PATH=%s", PATH_PREFIX); - rc_strlist_add (&env, p); - free (p); - } - - rc_strlist_free (whitelist); - rc_strlist_free (profile); - - return (env); -} -librc_hidden_def(rc_env_filter) - -/* Other systems may need this at some point, but for now it's Linux only */ -#ifdef __linux__ -static bool file_regex (const char *file, const char *regex) -{ - FILE *fp; - char buffer[RC_LINEBUFFER]; - regex_t re; - bool retval = false; - int result; - - if (! (fp = fopen (file, "r"))) - return (false); - - if ((result = regcomp (&re, regex, REG_EXTENDED | REG_NOSUB)) != 0) { - fclose (fp); - regerror (result, &re, buffer, sizeof (buffer)); - fprintf (stderr, "file_regex: %s", buffer); - return (false); - } - - while (fgets (buffer, RC_LINEBUFFER, fp)) { - if (regexec (&re, buffer, 0, NULL, 0) == 0) - { - retval = true; - break; - } - } - fclose (fp); - regfree (&re); - - return (retval); -} -#endif - -char **rc_env_config (void) -{ - char **env = NULL; - char *line; - int i; - char *p; - char **config; - char *e; -#ifdef __linux__ - char sys[6]; -#endif - struct utsname uts; - bool has_net_fs_list = false; - FILE *fp; - char buffer[PATH_MAX]; - char *runlevel = rc_runlevel_get (); - - /* Don't trust environ for softlevel yet */ - snprintf (buffer, PATH_MAX, "%s.%s", RC_CONFIG, runlevel); - if (rc_exists (buffer)) - config = rc_config_load (buffer); - else - config = rc_config_load (RC_CONFIG); - - STRLIST_FOREACH (config, line, i) { - p = strchr (line, '='); - if (! p) - continue; - - *p = 0; - e = getenv (line); - if (! e) { - *p = '='; - rc_strlist_add (&env, line); - } else { - int len = strlen (line) + strlen (e) + 2; - char *new = rc_xmalloc (sizeof (char *) * len); - snprintf (new, len, "%s=%s", line, e); - rc_strlist_add (&env, new); - free (new); - } - } - rc_strlist_free (config); - - /* One char less to drop the trailing / */ - i = strlen ("RC_LIBDIR=") + strlen (RC_LIBDIR) + 1; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_LIBDIR=" RC_LIBDIR); - rc_strlist_add (&env, line); - free (line); - - /* One char less to drop the trailing / */ - i = strlen ("RC_SVCDIR=") + strlen (RC_SVCDIR) + 1; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_SVCDIR=" RC_SVCDIR); - rc_strlist_add (&env, line); - free (line); - - rc_strlist_add (&env, "RC_BOOTLEVEL=" RC_LEVEL_BOOT); - - i = strlen ("RC_SOFTLEVEL=") + strlen (runlevel) + 1; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_SOFTLEVEL=%s", runlevel); - rc_strlist_add (&env, line); - free (line); - - if ((fp = fopen (RC_KSOFTLEVEL, "r"))) { - memset (buffer, 0, sizeof (buffer)); - if (fgets (buffer, sizeof (buffer), fp)) { - i = strlen (buffer) - 1; - if (buffer[i] == '\n') - buffer[i] = 0; - i += strlen ("RC_DEFAULTLEVEL=") + 2; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_DEFAULTLEVEL=%s", buffer); - rc_strlist_add (&env, line); - free (line); - } - fclose (fp); - } else - rc_strlist_add (&env, "RC_DEFAULTLEVEL=" RC_LEVEL_DEFAULT); - - -#ifdef __linux__ - /* Linux can run some funky stuff like Xen, VServer, UML, etc - We store this special system in RC_SYS so our scripts run fast */ - memset (sys, 0, sizeof (sys)); - - if (rc_exists ("/proc/xen")) { - if ((fp = fopen ("/proc/xen/capabilities", "r"))) { - fclose (fp); - if (file_regex ("/proc/xen/capabilities", "control_d")) - snprintf (sys, sizeof (sys), "XENU"); - } - if (! sys[0]) - snprintf (sys, sizeof (sys), "XEN0"); - } else if (file_regex ("/proc/cpuinfo", "UML")) { - snprintf (sys, sizeof (sys), "UML"); - } else if (file_regex ("/proc/self/status", - "(s_context|VxID|envID):[[:space:]]*[1-9]")) - { - snprintf (sys, sizeof (sys), "VPS"); - } - - if (sys[0]) { - i = strlen ("RC_SYS=") + strlen (sys) + 2; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_SYS=%s", sys); - rc_strlist_add (&env, line); - free (line); - } - -#endif - - /* Only add a NET_FS list if not defined */ - STRLIST_FOREACH (env, line, i) - if (strncmp (line, "RC_NET_FS_LIST=", strlen ("RC_NET_FS_LIST=")) == 0) { - has_net_fs_list = true; - break; - } - - if (! has_net_fs_list) { - i = strlen ("RC_NET_FS_LIST=") + strlen (RC_NET_FS_LIST_DEFAULT) + 1; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_NET_FS_LIST=%s", RC_NET_FS_LIST_DEFAULT); - rc_strlist_add (&env, line); - free (line); - } - - /* Some scripts may need to take a different code path if Linux/FreeBSD, etc - To save on calling uname, we store it in an environment variable */ - if (uname (&uts) == 0) { - i = strlen ("RC_UNAME=") + strlen (uts.sysname) + 2; - line = rc_xmalloc (sizeof (char *) * i); - snprintf (line, i, "RC_UNAME=%s", uts.sysname); - rc_strlist_add (&env, line); - free (line); - } - - free (runlevel); - return (env); -} -librc_hidden_def(rc_env_config) |