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env: Add H_DEFAULT flag

Add another internal environment flag which indicates that the operation
is resetting the environment to the default one. This allows the env code
to discern between import of external environment and reset to default.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Marek Vasut 3 éve
szülő
commit
ef9bef2bfe
2 módosított fájl, 3 hozzáadás és 1 törlés
  1. 2 1
      env/common.c
  2. 1 0
      include/search.h

+ 2 - 1
env/common.c

@@ -81,6 +81,7 @@ void env_set_default(const char *s, int flags)
 		debug("Using default environment\n");
 	}
 
+	flags |= H_DEFAULT;
 	if (himport_r(&env_htab, (char *)default_environment,
 			sizeof(default_environment), '\0', flags, 0,
 			0, NULL) == 0)
@@ -99,7 +100,7 @@ int env_set_default_vars(int nvars, char * const vars[], int flags)
 	 * Special use-case: import from default environment
 	 * (and use \0 as a separator)
 	 */
-	flags |= H_NOCLEAR;
+	flags |= H_NOCLEAR | H_DEFAULT;
 	return himport_r(&env_htab, (const char *)default_environment,
 				sizeof(default_environment), '\0',
 				flags, 0, nvars, vars);

+ 1 - 0
include/search.h

@@ -112,5 +112,6 @@ int hwalk_r(struct hsearch_data *htab,
 #define H_MATCH_METHOD	(H_MATCH_IDENT | H_MATCH_SUBSTR | H_MATCH_REGEX)
 #define H_PROGRAMMATIC	(1 << 9) /* indicate that an import is from env_set() */
 #define H_ORIGIN_FLAGS	(H_INTERACTIVE | H_PROGRAMMATIC)
+#define H_DEFAULT	(1 << 10) /* indicate that an import is default env */
 
 #endif /* _SEARCH_H_ */