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-rw-r--r--README1
-rw-r--r--common/cmd_nvedit.c55
-rw-r--r--include/configs/corenet_ds.h3
-rw-r--r--include/search.h6
-rw-r--r--lib/hashtable.c23
5 files changed, 84 insertions, 4 deletions
diff --git a/README b/README
index 0491b11..157cc9e 100644
--- a/README
+++ b/README
@@ -646,6 +646,7 @@ The following options need to be configured:
CONFIG_CMD_FLASH flinfo, erase, protect
CONFIG_CMD_FPGA FPGA device initialization support
CONFIG_CMD_GO * the 'go' command (exec code)
+ CONFIG_CMD_GREPENV * search environment
CONFIG_CMD_HWFLOW * RTS/CTS hw flow control
CONFIG_CMD_I2C * I2C serial bus support
CONFIG_CMD_IDE * IDE harddisk support
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index df0e6db..817f39b 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -4,7 +4,9 @@
*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Andreas Heppel <aheppel@sysgo.de>
-
+ *
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -160,6 +162,37 @@ int do_env_print (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return rcode;
}
+#ifdef CONFIG_CMD_GREPENV
+static int do_env_grep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ENTRY *match;
+ unsigned char matched[env_htab.size / 8];
+ int rcode = 1, arg = 1, idx;
+
+ if (argc < 2)
+ return cmd_usage(cmdtp);
+
+ memset(matched, 0, env_htab.size / 8);
+
+ while (arg <= argc) {
+ idx = 0;
+ while ((idx = hstrstr_r(argv[arg], idx, &match, &env_htab))) {
+ if (!(matched[idx / 8] & (1 << (idx & 7)))) {
+ puts(match->key);
+ puts("=");
+ puts(match->data);
+ puts("\n");
+ }
+ matched[idx / 8] |= 1 << (idx & 7);
+ rcode = 0;
+ }
+ arg++;
+ }
+
+ return rcode;
+}
+#endif
+
/*
* Set a new environment variable,
* or replace or delete an existing one.
@@ -829,6 +862,9 @@ static cmd_tbl_t cmd_env_sub[] = {
#if defined(CONFIG_CMD_EXPORTENV)
U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""),
#endif
+#if defined(CONFIG_CMD_GREPENV)
+ U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""),
+#endif
#if defined(CONFIG_CMD_IMPORTENV)
U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""),
#endif
@@ -878,8 +914,11 @@ U_BOOT_CMD(
#if defined(CONFIG_CMD_EDITENV)
"env edit name - edit environment variable\n"
#endif
- "env export [-t | -b | -c] addr [size] - export environmnt\n"
- "env import [-d] [-t | -b | -c] addr [size] - import environmnt\n"
+ "env export [-t | -b | -c] addr [size] - export environment\n"
+#if defined(CONFIG_CMD_GREPENV)
+ "env grep string [...] - search environment\n"
+#endif
+ "env import [-d] [-t | -b | -c] addr [size] - import environment\n"
"env print [name ...] - print environment\n"
#if defined(CONFIG_CMD_RUN)
"env run var [...] - run commands in an environment variable\n"
@@ -911,6 +950,16 @@ U_BOOT_CMD_COMPLETE(
var_complete
);
+#ifdef CONFIG_CMD_GREPENV
+U_BOOT_CMD_COMPLETE(
+ grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep,
+ "search environment variables",
+ "string ...\n"
+ " - list environment name=value pairs matching 'string'",
+ var_complete
+);
+#endif
+
U_BOOT_CMD_COMPLETE(
setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
"set environment variables",
diff --git a/include/configs/corenet_ds.h b/include/configs/corenet_ds.h
index 4e2b3fb..bec8cd1 100644
--- a/include/configs/corenet_ds.h
+++ b/include/configs/corenet_ds.h
@@ -476,14 +476,15 @@
*/
#include <config_cmd_default.h>
+#define CONFIG_CMD_DHCP
#define CONFIG_CMD_ELF
#define CONFIG_CMD_ERRATA
+#define CONFIG_CMD_GREPENV
#define CONFIG_CMD_IRQ
#define CONFIG_CMD_I2C
#define CONFIG_CMD_MII
#define CONFIG_CMD_PING
#define CONFIG_CMD_SETEXPR
-#define CONFIG_CMD_DHCP
#ifdef CONFIG_PCI
#define CONFIG_CMD_PCI
diff --git a/include/search.h b/include/search.h
index a7c1293..c827d4d 100644
--- a/include/search.h
+++ b/include/search.h
@@ -80,6 +80,12 @@ extern int hsearch_r(ENTRY __item, ACTION __action, ENTRY ** __retval,
*/
extern int hmatch_r(const char *__match, int __last_idx, ENTRY ** __retval,
struct hsearch_data *__htab);
+/*
+ * Search for an entry whose key or data contains `MATCH'. Otherwise,
+ * Same semantics as hsearch_r().
+ */
+extern int hstrstr_r(const char *__match, int __last_idx, ENTRY ** __retval,
+ struct hsearch_data *__htab);
/* Search and delete entry matching ITEM.key in internal hash table. */
extern int hdelete_r(const char *__key, struct hsearch_data *__htab);
diff --git a/lib/hashtable.c b/lib/hashtable.c
index 92eaa38..19d5b15 100644
--- a/lib/hashtable.c
+++ b/lib/hashtable.c
@@ -202,6 +202,29 @@ void hdestroy_r(struct hsearch_data *htab)
* example for functions like hdelete().
*/
+/*
+ * hstrstr_r - return index to entry whose key and/or data contains match
+ */
+int hstrstr_r(const char *match, int last_idx, ENTRY ** retval,
+ struct hsearch_data *htab)
+{
+ unsigned int idx;
+
+ for (idx = last_idx + 1; idx < htab->size; ++idx) {
+ if (htab->table[idx].used <= 0)
+ continue;
+ if (strstr(htab->table[idx].entry.key, match) ||
+ strstr(htab->table[idx].entry.data, match)) {
+ *retval = &htab->table[idx].entry;
+ return idx;
+ }
+ }
+
+ __set_errno(ESRCH);
+ *retval = NULL;
+ return 0;
+}
+
int hmatch_r(const char *match, int last_idx, ENTRY ** retval,
struct hsearch_data *htab)
{