From b7061c82b47bf624b916df87d7813c4fbdb48c18 Mon Sep 17 00:00:00 2001
From: Wayne Davison <wayned@samba.org>
Date: Wed, 9 Jun 2004 21:51:07 +0000
Subject: [PATCH] Allow the argv list the daemon uses for globbing its args to
 grow.

---
 clientserver.c | 18 ++++++++++++------
 util.c         | 29 +++++++++++++++++++++--------
 2 files changed, 33 insertions(+), 14 deletions(-)

diff --git a/clientserver.c b/clientserver.c
index 9f514062..501e6e4d 100644
--- a/clientserver.c
+++ b/clientserver.c
@@ -207,7 +207,8 @@ int start_inband_exchange(char *user, char *path, int f_in, int f_out, int argc)
 static int rsync_module(int f_in, int f_out, int i)
 {
 	int argc = 0;
-	char *argv[MAX_ARGS];
+	int maxargs;
+	char **argv;
 	char **argp;
 	char line[MAXPATHLEN];
 	uid_t uid = (uid_t)-2;  /* canonically "nobody" */
@@ -385,6 +386,9 @@ static int rsync_module(int f_in, int f_out, int i)
 
 	io_printf(f_out, "@RSYNCD: OK\n");
 
+	maxargs = MAX_ARGS;
+	if (!(argv = new_array(char *, maxargs)))
+		out_of_memory("rsync_module");
 	argv[argc++] = "rsyncd";
 
 	while (1) {
@@ -396,23 +400,25 @@ static int rsync_module(int f_in, int f_out, int i)
 
 		p = line;
 
+		if (argc == maxargs) {
+			maxargs += MAX_ARGS;
+			if (!(argv = realloc_array(argv, char *, maxargs)))
+				out_of_memory("rsync_module");
+		}
 		if (!(argv[argc] = strdup(p)))
-			return -1;
+			out_of_memory("rsync_module");
 
 		if (start_glob) {
 			if (start_glob == 1) {
 				request = strdup(p);
 				start_glob++;
 			}
-			glob_expand(name, argv, &argc, MAX_ARGS);
+			glob_expand(name, &argv, &argc, &maxargs);
 		} else
 			argc++;
 
 		if (strcmp(line, ".") == 0)
 			start_glob = 1;
-
-		if (argc == MAX_ARGS)
-			return -1;
 	}
 
 	argp = argv;
diff --git a/util.c b/util.c
index f2158a02..8d057712 100644
--- a/util.c
+++ b/util.c
@@ -495,12 +495,20 @@ static int exclude_server_path(char *arg)
 	return 0;
 }
 
-static void glob_expand_one(char *s, char **argv, int *argc_ptr, int maxargs)
+static void glob_expand_one(char *s, char ***argv_ptr, int *argc_ptr,
+			    int *maxargs_ptr)
 {
+	char **argv = *argv_ptr;
 	int argc = *argc_ptr;
+	int maxargs = *maxargs_ptr;
 #if !(defined(HAVE_GLOB) && defined(HAVE_GLOB_H))
-	if (maxargs <= argc)
-		return;
+	if (argc == maxargs) {
+		maxargs += MAX_ARGS;
+		if (!(argv = realloc_array(argv, char *, maxargs)))
+			out_of_memory("glob_expand_one");
+		*argv_ptr = argv;
+		*maxargs_ptr = maxargs;
+	}
 	if (!*s)
 		s = ".";
 	s = argv[argc++] = strdup(s);
@@ -521,12 +529,17 @@ static void glob_expand_one(char *s, char **argv, int *argc_ptr, int maxargs)
 	memset(&globbuf, 0, sizeof globbuf);
 	if (!exclude_server_path(s))
 		glob(s, 0, NULL, &globbuf);
+	if (MAX((int)globbuf.gl_pathc, 1) > maxargs - argc) {
+		maxargs += globbuf.gl_pathc + MAX_ARGS;
+		if (!(argv = realloc_array(argv, char *, maxargs)))
+			out_of_memory("glob_expand_one");
+		*argv_ptr = argv;
+		*maxargs_ptr = maxargs;
+	}
 	if (globbuf.gl_pathc == 0)
 		argv[argc++] = s;
 	else {
 		int j = globbuf.gl_pathc;
-		if (j > maxargs - argc)
-			j = maxargs - argc;
 		free(s);
 		for (i = 0; i < j; i++) {
 			if (!(argv[argc++] = strdup(globbuf.gl_pathv[i])))
@@ -539,9 +552,9 @@ static void glob_expand_one(char *s, char **argv, int *argc_ptr, int maxargs)
 }
 
 /* This routine is only used in daemon mode. */
-void glob_expand(char *base1, char **argv, int *argc_ptr, int maxargs)
+void glob_expand(char *base1, char ***argv_ptr, int *argc_ptr, int *maxargs_ptr)
 {
-	char *s = argv[*argc_ptr];
+	char *s = (*argv_ptr)[*argc_ptr];
 	char *p, *q;
 	char *base = base1;
 	int base_len = strlen(base);
@@ -562,7 +575,7 @@ void glob_expand(char *base1, char **argv, int *argc_ptr, int maxargs)
 	for (q = s; *q; q = p + base_len) {
 		if ((p = strstr(q, base)) != NULL)
 			*p = '\0'; /* split it at this point */
-		glob_expand_one(q, argv, argc_ptr, maxargs);
+		glob_expand_one(q, argv_ptr, argc_ptr, maxargs_ptr);
 		if (!p)
 			break;
 	}
-- 
2.34.1