r10514: Add str_list_make_shell() and str_list_join_shell()

source/lib/util_strlist.c

@@ -2,6 +2,7 @@
    Unix SMB/CIFS implementation.
    
    Copyright (C) Andrew Tridgell 2005
+   Copyright (C) Jelmer Vernooij 2005
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -70,6 +71,63 @@ const char **str_list_make(TALLOC_CTX *mem_ctx, const char *string, const char *
 	return ret;
 }
 
+/* build a null terminated list of strings from an argv-like input string 
+   Entries are seperated by spaces and can be enclosed by quotes. 
+   Does NOT support escaping
+ */
+const char **str_list_make_shell(TALLOC_CTX *mem_ctx, const char *string)
+{
+	int num_elements = 0;
+	const char **ret = NULL;
+
+	ret = talloc_array(mem_ctx, const char *, 1);
+	if (ret == NULL) {
+		return NULL;
+	}
+
+	while (string && *string) {
+		size_t len = strcspn(string, " ");
+		char *element;
+		const char **ret2;
+		
+		if (len == 0) {
+			string += strspn(string, " ");
+			continue;
+		}
+
+		if (*string == '\"') {
+			string++;
+			len = strcspn(string, "\"");
+			element = talloc_strndup(ret, string, len);
+			string += len + 1;
+		} else {
+			element = talloc_strndup(ret, string, len);
+			string += len;
+		}
+
+		if (element == NULL) {
+			talloc_free(ret);
+			return NULL;
+		}
+
+		ret2 = talloc_realloc(mem_ctx, ret, const char *, num_elements+2);
+		if (ret2 == NULL) {
+			talloc_free(ret);
+			return NULL;
+		}
+		ret = ret2;
+
+		ret[num_elements] = element;	
+
+		num_elements++;
+	}
+
+	ret[num_elements] = NULL;
+
+	return ret;
+
+}
+
 /* join a list back to one string */
 char *str_list_join(TALLOC_CTX *mem_ctx, const char **list, char seperator)
 {
@@ -88,6 +146,30 @@ char *str_list_join(TALLOC_CTX *mem_ctx, const char **list, char seperator)
 	return ret;
 }
 
+/* join a list back to one (shell-like) string; entries 
+ * seperated by spaces, using quotes where necessary */
+char *str_list_join_shell(TALLOC_CTX *mem_ctx, const char **list)
+{
+	char *ret = NULL;
+	int i;
+	
+	if (list[0] == NULL)
+		return talloc_strdup(mem_ctx, "");
+
+	if (strchr(list[0], ' ') || strlen(list[0]) == 0) 
+		ret = talloc_asprintf(mem_ctx, "\"%s\"", list[0]);
+	else 
+		ret = talloc_strdup(mem_ctx, list[0]);
+
+	for (i = 1; list[i]; i++) {
+		if (strchr(list[i], ' ') || strlen(list[i]) == 0) 
+			ret = talloc_asprintf_append(ret, " \"%s\"", list[i]);
+		else 
+			ret = talloc_asprintf_append(ret, " %s", list[i]);
+	}
+
+	return ret;
+}
 
 /*
   return the number of elements in a string list

source/torture/SConscript

@@ -34,7 +34,7 @@ hostenv.StaticLibrary('torture_auth', [ 'auth/ntlmssp.c', 'auth/pac.c' ])
 hostenv.StaticLibrary('torture_local', 
 	['local/iconv.c', 'lib/talloc/testsuite.c', 'local/messaging.c',
 	'local/binding_string.c', 'local/idtree.c', 'local/socket.c',
-	'local/irpc.c', 'local/resolve.c'])
+	'local/irpc.c', 'local/resolve.c', 'local/util_strlist.c'])
 
 hostenv.StaticLibrary('torture_nbench', [ 'nbench/nbio.c', 'nbench/nbench.c' ])
 

source/torture/config.mk

@@ -148,7 +148,8 @@ ADD_OBJ_FILES = \
 		torture/local/idtree.o \
 		torture/local/socket.o \
 		torture/local/irpc.o \
-		torture/local/resolve.o
+		torture/local/resolve.o \
+		torture/local/util_strlist.o
 REQUIRED_SUBSYSTEMS = \
 		LIBSMB \
 		MESSAGING

source/torture/local/util_strlist.c

@@ -0,0 +1,80 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   util_strlist testing
+
+   Copyright (C) Jelmer Vernooij 2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+static const char *test_lists_shell_strings[] = {
+	"",
+	"foo",
+	"foo bar",
+	"foo bar \"bla \"",
+	"foo \"\" bla",
+	"bla \"\"\"\" blie",
+};
+
+static BOOL test_lists_shell(TALLOC_CTX *mem_ctx)
+{
+	int i;
+	for (i = 0; test_lists_shell_strings[i]; i++) {
+		const char **ret1, **ret2, *tmp;
+		BOOL match = True;
+
+		ret1 = str_list_make_shell(mem_ctx, test_lists_shell_strings[i]);
+		tmp = str_list_join_shell(mem_ctx, ret1);
+		ret2 = str_list_make_shell(mem_ctx, tmp);
+		
+		if ((ret1 == NULL || ret2 == NULL) && ret2 != ret1) {
+			match = False;
+		} else {
+			int j;
+			for (j = 0; ret1[j] && ret2[j]; j++) {
+				if (strcmp(ret1[j], ret2[j]) != 0) {
+					match = False;
+					break;
+				}
+			}
+
+			if (ret1[j] || ret2[j])
+				match = False;
+		}
+
+		if (!match) {
+			printf("str_list_{make,join}_shell: Error double parsing, first run:\n%s\nSecond run: \n%s\n", 
+				   test_lists_shell_strings[i],
+				   tmp);
+			return False;
+		}
+	}
+
+	return True;
+}
+
+BOOL torture_local_util_strlist(void) 
+{
+	BOOL ret = True;
+	TALLOC_CTX *mem_ctx = talloc_init("test_util_strlist");
+
+	ret &= test_lists_shell(mem_ctx);
+	talloc_free(mem_ctx);
+
+	return ret;
+}

source/torture/torture.c

@@ -2321,6 +2321,7 @@ static struct {
 	{"LOCAL-MESSAGING", torture_local_messaging, 0},
 	{"LOCAL-IRPC",  torture_local_irpc, 0},
 	{"LOCAL-BINDING", torture_local_binding_string, 0},
+	{"LOCAL-STRLIST", torture_local_util_strlist, 0},
 	{"LOCAL-IDTREE", torture_local_idtree, 0},
 	{"LOCAL-SOCKET", torture_local_socket, 0},
 	{"LOCAL-PAC", torture_pac, 0},