s3-lib Move realloc based string substitution functions out of util_str.c

This makes the dependency set for source3/lib/util_str.c simpiler,
which in turn makes it easier to build a dependency tree.

Andrew Bartlett

5 files changed, 150 insertions, 125 deletions

diff --git a/source3/Makefile.in b/source3/Makefile.in
index 822ffc509f7..eba3d8e3207 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -464,7 +464,7 @@ LIB_OBJ = $(LIBSAMBAUTIL_OBJ) $(UTIL_OBJ) $(CRYPTO_OBJ) \
 	  ../lib/util/charset/util_unistr_w.o ../lib/util/charset/codepoints.o ../lib/util/charset/util_str.o lib/util_file.o \
 	  lib/util.o lib/util_cmdline.o lib/util_names.o \
 	  lib/util_sock.o lib/sock_exec.o lib/util_sec.o \
-	  lib/substitute.o ../lib/util/substitute.o lib/dbwrap_util.o \
+	  lib/substitute.o lib/substitute_generic.o ../lib/util/substitute.o lib/dbwrap_util.o \
 	  lib/ms_fnmatch.o ../lib/util/ms_fnmatch.o lib/errmap_unix.o \
 	  lib/tallocmsg.o lib/dmallocmsg.o \
 	  libsmb/clisigning.o libsmb/smb_signing.o \
diff --git a/source3/lib/substitute.c b/source3/lib/substitute.c
index b246a17132f..d98a18ae2e1 100644
--- a/source3/lib/substitute.c
+++ b/source3/lib/substitute.c
@@ -926,3 +926,32 @@ char *standard_sub_conn(TALLOC_CTX *ctx, connection_struct *conn, const char *st
 				"",
 				str);
 }
+
+/******************************************************************************
+ version of standard_sub_basic() for string lists; uses talloc_sub_basic()
+ for the work
+ *****************************************************************************/
+
+bool str_list_sub_basic( char **list, const char *smb_name,
+			 const char *domain_name )
+{
+	TALLOC_CTX *ctx = list;
+	char *s, *tmpstr;
+
+	while ( *list ) {
+		s = *list;
+		tmpstr = talloc_sub_basic(ctx, smb_name, domain_name, s);
+		if ( !tmpstr ) {
+			DEBUG(0,("str_list_sub_basic: "
+				"alloc_sub_basic() return NULL!\n"));
+			return false;
+		}
+
+		TALLOC_FREE(*list);
+		*list = tmpstr;
+
+		list++;
+	}
+
+	return true;
+}
diff --git a/source3/lib/substitute_generic.c b/source3/lib/substitute_generic.c
new file mode 100644
index 00000000000..fa347fb8157
--- /dev/null
+++ b/source3/lib/substitute_generic.c
@@ -0,0 +1,116 @@
+/*
+   Unix SMB/CIFS implementation.
+   Samba utility functions
+
+   Copyright (C) Andrew Tridgell 1992-2001
+   Copyright (C) Simo Sorce      2001-2002
+   Copyright (C) Martin Pool     2003
+   Copyright (C) James Peach	 2006
+   Copyright (C) Jeremy Allison  1992-2007
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+void fstring_sub(char *s,const char *pattern,const char *insert)
+{
+	string_sub(s, pattern, insert, sizeof(fstring));
+}
+
+/**
+ Similar to string_sub2, but it will accept only allocated strings
+ and may realloc them so pay attention at what you pass on no
+ pointers inside strings, no const may be passed
+ as string.
+**/
+
+char *realloc_string_sub2(char *string,
+			const char *pattern,
+			const char *insert,
+			bool remove_unsafe_characters,
+			bool allow_trailing_dollar)
+{
+	char *p, *in;
+	char *s;
+	ssize_t ls,lp,li,ld, i;
+
+	if (!insert || !pattern || !*pattern || !string || !*string)
+		return NULL;
+
+	s = string;
+
+	in = SMB_STRDUP(insert);
+	if (!in) {
+		DEBUG(0, ("realloc_string_sub: out of memory!\n"));
+		return NULL;
+	}
+	ls = (ssize_t)strlen(s);
+	lp = (ssize_t)strlen(pattern);
+	li = (ssize_t)strlen(insert);
+	ld = li - lp;
+	for (i=0;i<li;i++) {
+		switch (in[i]) {
+			case '$':
+				/* allow a trailing $
+				 * (as in machine accounts) */
+				if (allow_trailing_dollar && (i == li - 1 )) {
+					break;
+				}
+			case '`':
+			case '"':
+			case '\'':
+			case ';':
+			case '%':
+			case '\r':
+			case '\n':
+				if ( remove_unsafe_characters ) {
+					in[i] = '_';
+					break;
+				}
+			default:
+				/* ok */
+				break;
+		}
+	}
+
+	while ((p = strstr_m(s,pattern))) {
+		if (ld > 0) {
+			int offset = PTR_DIFF(s,string);
+			string = (char *)SMB_REALLOC(string, ls + ld + 1);
+			if (!string) {
+				DEBUG(0, ("realloc_string_sub: "
+					"out of memory!\n"));
+				SAFE_FREE(in);
+				return NULL;
+			}
+			p = string + offset + (p - s);
+		}
+		if (li != lp) {
+			memmove(p+li,p+lp,strlen(p+lp)+1);
+		}
+		memcpy(p, in, li);
+		s = p + li;
+		ls += ld;
+	}
+	SAFE_FREE(in);
+	return string;
+}
+
+char *realloc_string_sub(char *string,
+			const char *pattern,
+			const char *insert)
+{
+	return realloc_string_sub2(string, pattern, insert, true, false);
+}
diff --git a/source3/lib/util_str.c b/source3/lib/util_str.c
index 5755fc99a07..2a853c3d1ac 100644
--- a/source3/lib/util_str.c
+++ b/source3/lib/util_str.c
@@ -227,97 +227,6 @@ bool in_list(const char *s, const char *list, bool casesensitive)
 	return ret;
 }
 
-void fstring_sub(char *s,const char *pattern,const char *insert)
-{
-	string_sub(s, pattern, insert, sizeof(fstring));
-}
-
-/**
- Similar to string_sub2, but it will accept only allocated strings
- and may realloc them so pay attention at what you pass on no
- pointers inside strings, no const may be passed
- as string.
-**/
-
-char *realloc_string_sub2(char *string,
-			const char *pattern,
-			const char *insert,
-			bool remove_unsafe_characters,
-			bool allow_trailing_dollar)
-{
-	char *p, *in;
-	char *s;
-	ssize_t ls,lp,li,ld, i;
-
-	if (!insert || !pattern || !*pattern || !string || !*string)
-		return NULL;
-
-	s = string;
-
-	in = SMB_STRDUP(insert);
-	if (!in) {
-		DEBUG(0, ("realloc_string_sub: out of memory!\n"));
-		return NULL;
-	}
-	ls = (ssize_t)strlen(s);
-	lp = (ssize_t)strlen(pattern);
-	li = (ssize_t)strlen(insert);
-	ld = li - lp;
-	for (i=0;i<li;i++) {
-		switch (in[i]) {
-			case '$':
-				/* allow a trailing $
-				 * (as in machine accounts) */
-				if (allow_trailing_dollar && (i == li - 1 )) {
-					break;
-				}
-			case '`':
-			case '"':
-			case '\'':
-			case ';':
-			case '%':
-			case '\r':
-			case '\n':
-				if ( remove_unsafe_characters ) {
-					in[i] = '_';
-					break;
-				}
-			default:
-				/* ok */
-				break;
-		}
-	}
-
-	while ((p = strstr_m(s,pattern))) {
-		if (ld > 0) {
-			int offset = PTR_DIFF(s,string);
-			string = (char *)SMB_REALLOC(string, ls + ld + 1);
-			if (!string) {
-				DEBUG(0, ("realloc_string_sub: "
-					"out of memory!\n"));
-				SAFE_FREE(in);
-				return NULL;
-			}
-			p = string + offset + (p - s);
-		}
-		if (li != lp) {
-			memmove(p+li,p+lp,strlen(p+lp)+1);
-		}
-		memcpy(p, in, li);
-		s = p + li;
-		ls += ld;
-	}
-	SAFE_FREE(in);
-	return string;
-}
-
-char *realloc_string_sub(char *string,
-			const char *pattern,
-			const char *insert)
-{
-	return realloc_string_sub2(string, pattern, insert, true, false);
-}
-
 /*
  * Internal guts of talloc_string_sub and talloc_all_string_sub.
  * talloc version of string_sub2.
@@ -348,7 +257,7 @@ char *talloc_string_sub2(TALLOC_CTX *mem_ctx, const char *src,
 
 	s = string;
 
-	in = SMB_STRDUP(insert);
+	in = talloc_strdup(mem_ctx, insert);
 	if (!in) {
 		DEBUG(0, ("talloc_string_sub2: ENOMEM\n"));
 		return NULL;
@@ -391,7 +300,7 @@ char *talloc_string_sub2(TALLOC_CTX *mem_ctx, const char *src,
 			if (!string) {
 				DEBUG(0, ("talloc_string_sub: out of "
 					  "memory!\n"));
-				SAFE_FREE(in);
+				TALLOC_FREE(in);
 				return NULL;
 			}
 			p = string + offset + (p - s);
@@ -407,7 +316,7 @@ char *talloc_string_sub2(TALLOC_CTX *mem_ctx, const char *src,
 			break;
 		}
 	}
-	SAFE_FREE(in);
+	TALLOC_FREE(in);
 	return string;
 }
 
@@ -687,35 +596,6 @@ int fstr_sprintf(fstring s, const char *fmt, ...)
 #define S_LIST_ABS 16 /* List Allocation Block Size */
 
 /******************************************************************************
- version of standard_sub_basic() for string lists; uses talloc_sub_basic()
- for the work
- *****************************************************************************/
-
-bool str_list_sub_basic( char **list, const char *smb_name,
-			 const char *domain_name )
-{
-	TALLOC_CTX *ctx = list;
-	char *s, *tmpstr;
-
-	while ( *list ) {
-		s = *list;
-		tmpstr = talloc_sub_basic(ctx, smb_name, domain_name, s);
-		if ( !tmpstr ) {
-			DEBUG(0,("str_list_sub_basic: "
-				"alloc_sub_basic() return NULL!\n"));
-			return false;
-		}
-
-		TALLOC_FREE(*list);
-		*list = tmpstr;
-
-		list++;
-	}
-
-	return true;
-}
-
-/******************************************************************************
  substitute a specific pattern in a string list
  *****************************************************************************/
 
diff --git a/source3/wscript_build b/source3/wscript_build
index 543aef71584..2e281da12cb 100755
--- a/source3/wscript_build
+++ b/source3/wscript_build
@@ -77,7 +77,7 @@ LIB_SRC = '''
           lib/util_file.c
           lib/util.c lib/util_cmdline.c lib/util_names.c
           lib/util_sock.c lib/sock_exec.c lib/util_sec.c
-          lib/substitute.c lib/dbwrap_util.c
+          lib/substitute.c lib/substitute_generic.c lib/dbwrap_util.c
           lib/ms_fnmatch.c
           lib/tallocmsg.c lib/dmallocmsg.c
           libsmb/clisigning.c libsmb/smb_signing.c