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/*
env-update
Create /etc/profile.env (sh), /etc/csh.env from /etc/env.d
Run ldconfig as required
Copyright 2007 Gentoo Foundation
Released under the GPLv2
*/
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "einfo.h"
#include "rc.h"
#include "rc-misc.h"
#include "strlist.h"
#define ENVDIR "/etc/env.d"
#define PROFILE_ENV "/etc/profile.env"
#define CSH_ENV "/etc/csh.env"
#define LDSOCONF "/etc/ld.so.conf"
#define NOTICE "# THIS FILE IS AUTOMATICALLY GENERATED BY env-update.\n" \
"# DO NOT EDIT THIS FILE. CHANGES TO STARTUP PROFILES\n" \
"# GO INTO %s NOT %s\n\n"
#define LDNOTICE "# ld.so.conf autogenerated by env-update; make all\n" \
"# changes to contents of /etc/env.d directory\n"
static const char *specials[] = {
"ADA_INCLUDE_PATH",
"ADA_OBJECTS_PATH",
"CLASSPATH",
"INFOPATH",
"KDEDIRS",
"LDPATH",
"MANPATH",
"PATH",
"PKG_CONFIG_PATH",
"PRELINK_PATH",
"PRELINK_PATH_MASK",
"PYTHONPATH",
"ROOTPATH",
NULL
};
static const char *special_spaces[] = {
"CONFIG_PROTECT",
"CONFIG_PROTECT_MASK",
NULL,
};
static char *applet = NULL;
int main (int argc, char **argv)
{
char **files = rc_ls_dir (NULL, ENVDIR, 0);
char *file;
char **envs = NULL;
char *env;
int i = 0;
FILE *fp;
bool ld = true;
char *ldent;
char **ldents = NULL;
int nents = 0;
applet = argv[0];
if (! files)
eerrorx ("%s: no files in " ENVDIR " to process", applet);
STRLIST_FOREACH (files, file, i) {
char *path = rc_strcatpaths (ENVDIR, file, (char *) NULL);
char **entries = NULL;
char *entry;
int j;
if (! rc_is_dir (path))
entries = rc_get_config (NULL, path);
free (path);
STRLIST_FOREACH (entries, entry, j) {
char *tmpent = rc_xstrdup (entry);
char *value = tmpent;
char *var = strsep (&value, "=");
int k;
bool isspecial = false;
bool isspecial_spaced = false;
bool replaced = false;
for (k = 0; special_spaces[k]; k++)
if (strcmp (special_spaces[k], var) == 0) {
isspecial = true;
isspecial_spaced = true;
break;
}
if (! isspecial) {
for (k = 0; specials[k]; k++)
if (strcmp (specials[k], var) == 0) {
isspecial = true;
break;
}
}
/* Skip blank vars */
if (isspecial &&
(! value || strlen (value)) == 0)
{
free (tmpent);
continue;
}
STRLIST_FOREACH (envs, env, k) {
char *tmpenv = rc_xstrdup (env);
char *tmpvalue = tmpenv;
char *tmpentry = strsep (&tmpvalue, "=");
if (strcmp (tmpentry, var) == 0) {
if (isspecial) {
int len = strlen (envs[k - 1]) + strlen (entry) + 1;
envs[k - 1] = rc_xrealloc (envs[k - 1], len);
snprintf (envs[k - 1] + strlen (envs[k - 1]), len,
"%s%s", isspecial_spaced ? " " : ":", value);
} else {
free (envs[k - 1]);
envs[k - 1] = rc_xstrdup (entry);
}
replaced = true;
}
free (tmpenv);
if (replaced)
break;
}
if (! replaced)
envs = rc_strlist_addsort (envs, entry);
free (tmpent);
}
}
if ((fp = fopen (PROFILE_ENV, "w")) == NULL)
eerrorx ("%s: fopen `%s': %s", applet, PROFILE_ENV, strerror (errno));
fprintf (fp, NOTICE, "/etc/profile", PROFILE_ENV);
STRLIST_FOREACH (envs, env, i) {
char *tmpent = rc_xstrdup (env);
char *value = tmpent;
char *var = strsep (&value, "=");
if (strcmp (var, "LDPATH") != 0)
fprintf (fp, "export %s='%s'\n", var, value);
free (tmpent);
}
fclose (fp);
if ((fp = fopen (CSH_ENV, "w")) == NULL)
eerrorx ("%s: fopen `%s': %s", applet, PROFILE_ENV, strerror (errno));
fprintf (fp, NOTICE, "/etc/csh.cshrc", PROFILE_ENV);
STRLIST_FOREACH (envs, env, i) {
char *tmpent = rc_xstrdup (env);
char *value = tmpent;
char *var = strsep (&value, "=");
if (strcmp (var, "LDPATH") != 0)
fprintf (fp, "setenv %s '%s'\n", var, value);
free (tmpent);
}
fclose (fp);
ldent = rc_get_config_entry (envs, "LDPATH");
if (! ldent ||
(argc > 1 && argv[1] && strcmp (argv[1], "--no-ldconfig") == 0))
{
free (envs);
return (EXIT_SUCCESS);
}
while ((file = strsep (&ldent, ":"))) {
if (strlen (file) == 0)
continue;
ldents = rc_strlist_add (ldents, file);
nents++;
}
/* Update ld.so.conf only if different */
if (rc_exists (LDSOCONF)) {
char **lines = rc_get_list (NULL, LDSOCONF);
char *line;
ld = false;
STRLIST_FOREACH (lines, line, i)
if (i > nents || strcmp (line, ldents[i - 1]) != 0)
{
ld = true;
break;
}
if (i - 1 != nents)
ld = true;
}
if (ld) {
int retval = 0;
if ((fp = fopen (LDSOCONF, "w")) == NULL)
eerrorx ("%s: fopen `%s': %s", applet, LDSOCONF, strerror (errno));
fprintf (fp, LDNOTICE);
STRLIST_FOREACH (ldents, ldent, i)
fprintf (fp, "%s\n", ldent);
fclose (fp);
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
ebegin ("Regenerating /var/run/ld-elf.so.hints");
retval = system ("/sbin/ldconfig -elf -i '" LDSOCONF "'");
#else
ebegin ("Regenerating /etc/ld.so.cache");
retval = system ("/sbin/ldconfig");
#endif
eend (retval, NULL);
}
return(EXIT_SUCCESS);
}
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