3 * Murray Jensen, CSIRO-MIT, <Murray.Jensen@csiro.au>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <linux/ctype.h>
27 DECLARE_GLOBAL_DATA_PTR;
29 /* imports from fetch.c */
30 extern int fetch_and_parse (char *, ulong, int (*)(uchar *, uchar *));
32 /* this is relative to the root of the server's tftp directory */
33 static char *def_global_env_path = "/hymod/global_env";
36 env_callback (uchar *name, uchar *value)
38 hymod_conf_t *cp = &gd->bd->bi_hymod_conf;
39 char ov[CONFIG_SYS_CBSIZE], nv[CONFIG_SYS_CBSIZE], *p, *q, *nn, c, *curver, *newver;
40 int override = 1, append = 0, remove = 0, nnl, ovl, nvl;
52 if ((nnl = strlen (nn)) == 0) {
53 printf ("Empty name in global env file\n");
57 if ((c = nn[nnl - 1]) == '+' || c == '-') {
65 while (nnl > 0 && isblank(nn[nnl - 1]))
68 printf ("Empty name in global env file\n");
79 while (nvl > 0 && isblank(p[nvl - 1]))
82 while ((*q = *p++) != '\0') {
86 case '\0': /* whoops - back up */
90 case '%': /* a single percent character */
94 case 's': /* main board serial number as string */
95 q += sprintf (q, "%010lu",
96 cp->main.eeprom.serno);
99 case 'S': /* main board serial number as number */
100 q += sprintf (q, "%lu", cp->main.eeprom.serno);
103 default: /* ignore any others */
111 if ((nvl = q - nv) == 0) {
116 if ((curver = getenv ("global_env_version")) == NULL)
119 if ((newver = getenv ("new_genv_version")) == NULL || \
120 strcmp (curver, newver) == 0) {
121 if (strcmp (nn, "version") == 0)
122 setenv ("new_genv_version", nv);
126 if ((p = getenv (nn)) != NULL) {
133 if (strstr (ov, nv) == NULL) {
135 printf ("Appending '%s' to env var '%s'\n",
139 nv[ovl + 1 + nvl] = nv[nvl];
156 if (strstr (ov, nv) != NULL) {
158 printf ("Removing '%s' from env var '%s'\n",
161 while ((p = strstr (ov, nv)) != NULL) {
174 if (!override || strcmp (ov, nv) == 0)
177 printf ("Re-setting env cmd '%s' from '%s' to '%s'\n",
181 printf ("Setting env cmd '%s' to '%s'\n", nn, nv);
188 hymod_check_env (void)
190 char *p, *path, *curver, *newver;
191 int firsttime = 0, needsave = 0;
193 if (getenv ("global_env_loaded") == NULL) {
194 puts ("*** global environment has never been loaded\n");
195 puts ("*** fetching from server");
198 else if ((p = getenv ("always_check_env")) != NULL &&
199 strcmp (p, "yes") == 0)
200 puts ("*** checking for updated global environment");
204 puts (" (Control-C to Abort)\n");
206 if ((path = getenv ("global_env_path")) == NULL || *path == '\0')
207 path = def_global_env_path;
209 if (fetch_and_parse (path, CONFIG_SYS_LOAD_ADDR, env_callback) == 0) {
210 puts ("*** Fetch of global environment failed!\n");
214 if ((newver = getenv ("new_genv_version")) == NULL) {
215 puts ("*** Version number not set - contents ignored!\n");
219 if ((curver = getenv ("global_env_version")) == NULL || \
220 strcmp (curver, newver) != 0) {
221 setenv ("global_env_version", newver);
225 printf ("*** Global environment up-to-date (ver %s)\n", curver);
227 setenv ("new_genv_version", NULL);
230 setenv ("global_env_loaded", "yes");
235 puts ("\n*** Remember to run the 'saveenv' "
236 "command to save the changes\n\n");