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env: Hide '.' variables in env print by default

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When printing all variables with env print, don't print variables that
begin with '.'.  If env print is called with a '-a' switch, then
include variables that begin with '.' (just like the ls command).

Variables printed explicitly will be printed even without the -a.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger 2012-12-11 22:16:23 -06:00 committed by Tom Rini
parent ec8a252cd4
commit be11235ab8
13 changed files with 37 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
board/esd/pmc440/cmd_pmc440.c
View file

@ -391,7 +391,7 @@ int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
nextbase -= ((CONFIG_ENV_SIZE + 4096 - 1) & ~(4096 - 1));
envp = (env_t *)nextbase;
res = (char *)envp->data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

26
common/cmd_nvedit.c
View file

@ -106,7 +106,7 @@ int get_env_id(void)
*
* Returns 0 in case of error, or length of printed string
*/
static int env_print(char *name)
static int env_print(char *name, int flag)
{
char *res = NULL;
size_t len;
@ -116,7 +116,7 @@ static int env_print(char *name)
e.key = name;
e.data = NULL;
hsearch_r(e, FIND, &ep, &env_htab, 0);
hsearch_r(e, FIND, &ep, &env_htab, flag);
if (ep == NULL)
return 0;
len = printf("%s=%s\n", ep->key, ep->data);
@ -124,7 +124,7 @@ static int env_print(char *name)
}
/* print whole list */
len = hexport_r(&env_htab, '\n', &res, 0, 0, NULL);
len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL);
if (len > 0) {
puts(res);
@ -141,10 +141,17 @@ static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
{
int i;
int rcode = 0;
int env_flag = H_HIDE_DOT;
if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
argc--;
argv++;
env_flag &= ~H_HIDE_DOT;
}
if (argc == 1) {
/* print all env vars */
rcode = env_print(NULL);
rcode = env_print(NULL, env_flag);
if (!rcode)
return 1;
printf("\nEnvironment size: %d/%ld bytes\n",
@ -153,8 +160,9 @@ static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
}
/* print selected env vars */
env_flag &= ~H_HIDE_DOT;
for (i = 1; i < argc; ++i) {
int rc = env_print(argv[i]);
int rc = env_print(argv[i], env_flag);
if (!rc) {
printf("## Error: \"%s\" not defined\n", argv[i]);
++rcode;
@ -807,7 +815,7 @@ NXTARG: ;
argv++;
if (sep) { /* export as text file */
len = hexport_r(&env_htab, sep, &addr, size, argc, argv);
len = hexport_r(&env_htab, sep, 0, &addr, size, argc, argv);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
@ -825,7 +833,7 @@ NXTARG: ;
else /* export as raw binary data */
res = addr;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, argc, argv);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, argc, argv);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
@ -1037,7 +1045,7 @@ static char env_help_text[] =
#if defined(CONFIG_CMD_IMPORTENV)
"env import [-d] [-t | -b | -c] addr [size] - import environment\n"
#endif
"env print [name ...] - print environment\n"
"env print [-a | name ...] - print environment\n"
#if defined(CONFIG_CMD_RUN)
"env run var [...] - run commands in an environment variable\n"
#endif
@ -1069,7 +1077,7 @@ U_BOOT_CMD_COMPLETE(
U_BOOT_CMD_COMPLETE(
printenv, CONFIG_SYS_MAXARGS, 1, do_env_print,
"print environment variables",
"\n - print values of all environment variables\n"
"[-a]\n - print [all] values of all environment variables\n"
"printenv name ...\n"
" - print value of environment variable 'name'",
var_complete

2
common/env_dataflash.c
View file

@ -60,7 +60,7 @@ int saveenv(void)
char *res;
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

2
common/env_eeprom.c
View file

@ -139,7 +139,7 @@ int saveenv(void)
BUG_ON(env_ptr != NULL);
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

2
common/env_fat.c
View file

@ -61,7 +61,7 @@ int saveenv(void)
int err;
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

4
common/env_flash.c
View file

@ -142,7 +142,7 @@ int saveenv(void)
goto done;
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
goto done;
@ -275,7 +275,7 @@ int saveenv(void)
goto done;
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
goto done;

2
common/env_mmc.c
View file

@ -130,7 +130,7 @@ int saveenv(void)
}
res = (char *)&env_new->data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
ret = 1;

4
common/env_nand.c
View file

@ -186,7 +186,7 @@ int saveenv(void)
return 1;
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
@ -239,7 +239,7 @@ int saveenv(void)
return 1;
res = (char *)&env_new->data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

2
common/env_nvram.c
View file

@ -90,7 +90,7 @@ int saveenv(void)
int rcode = 0;
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

2
common/env_onenand.c
View file

@ -95,7 +95,7 @@ int saveenv(void)
};
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;

4
common/env_sf.c
View file

@ -79,7 +79,7 @@ int saveenv(void)
}
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
@ -277,7 +277,7 @@ int saveenv(void)
}
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
goto done;

5
include/search.h
View file

@ -107,7 +107,7 @@ extern int hdelete_r(const char *__key, struct hsearch_data *__htab,
int __flag);
extern ssize_t hexport_r(struct hsearch_data *__htab,
const char __sep, char **__resp, size_t __size,
const char __sep, int __flag, char **__resp, size_t __size,
int argc, char * const argv[]);
/*
@ -120,9 +120,10 @@ extern int himport_r(struct hsearch_data *__htab,
const char *__env, size_t __size, const char __sep,
int __flag, int nvars, char * const vars[]);
/* Flags for himport_r(), hdelete_r(), and hsearch_r() */
/* Flags for himport_r(), hexport_r(), hdelete_r(), and hsearch_r() */
#define H_NOCLEAR (1 << 0) /* do not clear hash table before importing */
#define H_FORCE (1 << 1) /* overwrite read-only/write-once variables */
#define H_INTERACTIVE (1 << 2) /* indicate that an import is user directed */
#define H_HIDE_DOT (1 << 3) /* don't print env vars that begin with '.' */
#endif /* search.h */

5
lib/hashtable.c
View file

@ -522,7 +522,7 @@ static int cmpkey(const void *p1, const void *p2)
return (strcmp(e1->key, e2->key));
}
ssize_t hexport_r(struct hsearch_data *htab, const char sep,
ssize_t hexport_r(struct hsearch_data *htab, const char sep, int flag,
char **resp, size_t size,
int argc, char * const argv[])
{
@ -559,6 +559,9 @@ ssize_t hexport_r(struct hsearch_data *htab, const char sep,
if ((argc > 0) && (found == 0))
continue;
if ((flag & H_HIDE_DOT) && ep->key[0] == '.')
continue;
list[n++] = ep;
totlen += strlen(ep->key) + 2;