From debbe4f7b591b3f35d0ed65c17fa81b196b2eb2d Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 12 Aug 2014 08:37:25 -0400
Subject: [PATCH] add __acl_ prefixes to internal symbols

When static linking libacl, people sometimes run into symbol collisions
because their own code defines symbols like "quote".  So for acl internal
symbols, use an __acl_ prefix.

[Rahul Bedarkar: backported from upstream 
  http://git.savannah.gnu.org/cgit/acl.git/commit/?id=a2c4d71c2e84419a49db503ed59de4d3d1dca7dd ]
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
---
 exports                    | 12 ++----------
 getfacl/getfacl.c          |  4 ++--
 include/misc.h             |  8 ++++----
 libacl/__acl_to_any_text.c |  4 ++--
 libacl/acl_from_text.c     |  4 ++--
 libmisc/high_water_alloc.c |  2 +-
 libmisc/next_line.c        |  6 +++---
 libmisc/quote.c            |  4 ++--
 libmisc/unquote.c          |  2 +-
 setfacl/parse.c            | 10 +++++-----
 setfacl/setfacl.c          |  4 ++--
 11 files changed, 26 insertions(+), 34 deletions(-)

diff --git a/exports b/exports
index 7d8e69e..bf15d84 100644
--- a/exports
+++ b/exports
@@ -59,22 +59,14 @@ ACL_1.0 {
 	acl_to_any_text;
 
     local:
-    	# Library internal stuff
+	# Library internal stuff
 	__new_var_obj_p;
 	__new_obj_p_here;
 	__free_obj_p;
 	__check_obj_p;
 	__ext2int_and_check;
-	__acl_reorder_entry_obj_p;
-	__acl_reorder_obj_p;
-	__acl_init_obj;
-	__acl_create_entry_obj;
-	__acl_free_acl_obj;
-	__acl_to_any_text;
+	__acl_*;
 	__apply_mask_to_mode;
-
-	quote;
-	unquote;
 };
 
 ACL_1.1 {
diff --git a/getfacl/getfacl.c b/getfacl/getfacl.c
index f8eaf25..af9e225 100644
--- a/getfacl/getfacl.c
+++ b/getfacl/getfacl.c
@@ -90,7 +90,7 @@ int opt_numeric;  /* don't convert id's to symbolic names */
 
 static const char *xquote(const char *str, const char *quote_chars)
 {
-	const char *q = quote(str, quote_chars);
+	const char *q = __acl_quote(str, quote_chars);
 	if (q == NULL) {
 		fprintf(stderr, "%s: %s\n", progname, strerror(errno));
 		exit(1);
@@ -718,7 +718,7 @@ int main(int argc, char *argv[])
 	do {
 		if (optind == argc ||
 		    strcmp(argv[optind], "-") == 0) {
-			while ((line = next_line(stdin)) != NULL) {
+			while ((line = __acl_next_line(stdin)) != NULL) {
 				if (*line == '\0')
 					continue;
 
diff --git a/include/misc.h b/include/misc.h
index 0c5fdcc..c25accf 100644
--- a/include/misc.h
+++ b/include/misc.h
@@ -15,9 +15,9 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-extern int high_water_alloc(void **buf, size_t *bufsize, size_t newsize);
+extern int __acl_high_water_alloc(void **buf, size_t *bufsize, size_t newsize);
 
-extern const char *quote(const char *str, const char *quote_chars);
-extern char *unquote(char *str);
+extern const char *__acl_quote(const char *str, const char *quote_chars);
+extern char *__acl_unquote(char *str);
 
-extern char *next_line(FILE *file);
+extern char *__acl_next_line(FILE *file);
diff --git a/libacl/__acl_to_any_text.c b/libacl/__acl_to_any_text.c
index a4f9c34..19f1ccc 100644
--- a/libacl/__acl_to_any_text.c
+++ b/libacl/__acl_to_any_text.c
@@ -159,7 +159,7 @@ acl_entry_to_any_str(const acl_entry_t entry_d, char *text_p, ssize_t size,
 				if (options & TEXT_NUMERIC_IDS)
 					str = NULL;
 				else
-					str = quote(user_name(
+					str = __acl_quote(user_name(
 						entry_obj_p->eid.qid), ":, \t\n\r");
 				if (str != NULL) {
 					strncpy(text_p, str, size);
@@ -182,7 +182,7 @@ acl_entry_to_any_str(const acl_entry_t entry_d, char *text_p, ssize_t size,
 				if (options & TEXT_NUMERIC_IDS)
 					str = NULL;
 				else
-					str = quote(group_name(
+					str = __acl_quote(group_name(
 						entry_obj_p->eid.qid), ":, \t\n\r");
 				if (str != NULL) {
 					strncpy(text_p, str, size);
diff --git a/libacl/acl_from_text.c b/libacl/acl_from_text.c
index 1e05322..f6165be 100644
--- a/libacl/acl_from_text.c
+++ b/libacl/acl_from_text.c
@@ -206,7 +206,7 @@ parse_acl_entry(const char **text_p, acl_t *acl_p)
 			str = get_token(text_p);
 			if (str) {
 				entry_obj.etag = ACL_USER;
-				error = get_uid(unquote(str),
+				error = get_uid(__acl_unquote(str),
 						&entry_obj.eid.qid);
 				free(str);
 				if (error) {
@@ -225,7 +225,7 @@ parse_acl_entry(const char **text_p, acl_t *acl_p)
 			str = get_token(text_p);
 			if (str) {
 				entry_obj.etag = ACL_GROUP;
-				error = get_gid(unquote(str),
+				error = get_gid(__acl_unquote(str),
 						&entry_obj.eid.qid);
 				free(str);
 				if (error) {
diff --git a/libmisc/high_water_alloc.c b/libmisc/high_water_alloc.c
index c127dc1..951f4bb 100644
--- a/libmisc/high_water_alloc.c
+++ b/libmisc/high_water_alloc.c
@@ -21,7 +21,7 @@
 #include <stdlib.h>
 #include "misc.h"
 
-int high_water_alloc(void **buf, size_t *bufsize, size_t newsize)
+int __acl_high_water_alloc(void **buf, size_t *bufsize, size_t newsize)
 {
 #define CHUNK_SIZE	256
 	/*
diff --git a/libmisc/next_line.c b/libmisc/next_line.c
index 0566d7a..126a364 100644
--- a/libmisc/next_line.c
+++ b/libmisc/next_line.c
@@ -23,7 +23,7 @@
 
 #define LINE_SIZE getpagesize()
 
-char *next_line(FILE *file)
+char *__acl_next_line(FILE *file)
 {
 	static char *line;
 	static size_t line_size;
@@ -31,7 +31,7 @@ char *next_line(FILE *file)
 	int eol = 0;
 
 	if (!line) {
-		if (high_water_alloc((void **)&line, &line_size, LINE_SIZE))
+		if (__acl_high_water_alloc((void **)&line, &line_size, LINE_SIZE))
 			return NULL;
 	}
 	c = line;
@@ -47,7 +47,7 @@ char *next_line(FILE *file)
 		if (feof(file))
 			break;
 		if (!eol) {
-			if (high_water_alloc((void **)&line, &line_size,
+			if (__acl_high_water_alloc((void **)&line, &line_size,
 					     2 * line_size))
 				return NULL;
 			c = strrchr(line, '\0');
diff --git a/libmisc/quote.c b/libmisc/quote.c
index bf8f9eb..a28800c 100644
--- a/libmisc/quote.c
+++ b/libmisc/quote.c
@@ -23,7 +23,7 @@
 #include <string.h>
 #include "misc.h"
 
-const char *quote(const char *str, const char *quote_chars)
+const char *__acl_quote(const char *str, const char *quote_chars)
 {
 	static char *quoted_str;
 	static size_t quoted_str_len;
@@ -40,7 +40,7 @@ const char *quote(const char *str, const char *quote_chars)
 	if (nonpr == 0)
 		return str;
 
-	if (high_water_alloc((void **)&quoted_str, &quoted_str_len,
+	if (__acl_high_water_alloc((void **)&quoted_str, &quoted_str_len,
 			     (s - (unsigned char *)str) + nonpr * 3 + 1))
 		return NULL;
 	for (s = (unsigned char *)str, q = quoted_str; *s != '\0'; s++) {
diff --git a/libmisc/unquote.c b/libmisc/unquote.c
index bffebf9..4f4ce7c 100644
--- a/libmisc/unquote.c
+++ b/libmisc/unquote.c
@@ -22,7 +22,7 @@
 #include <ctype.h>
 #include "misc.h"
 
-char *unquote(char *str)
+char *__acl_unquote(char *str)
 {
 	unsigned char *s, *t;
 
diff --git a/setfacl/parse.c b/setfacl/parse.c
index e7e6add..7433459 100644
--- a/setfacl/parse.c
+++ b/setfacl/parse.c
@@ -226,7 +226,7 @@ user_entry:
 			str = get_token(text_p);
 			if (str) {
 				cmd->c_tag = ACL_USER;
-				error = get_uid(unquote(str), &cmd->c_id);
+				error = get_uid(__acl_unquote(str), &cmd->c_id);
 				free(str);
 				if (error) {
 					*text_p = backup;
@@ -245,7 +245,7 @@ user_entry:
 			str = get_token(text_p);
 			if (str) {
 				cmd->c_tag = ACL_GROUP;
-				error = get_gid(unquote(str), &cmd->c_id); 
+				error = get_gid(__acl_unquote(str), &cmd->c_id);
 				free(str);
 				if (error) {
 					*text_p = backup;
@@ -466,7 +466,7 @@ read_acl_comments(
 		if (strncmp(cp, "file:", 5) == 0) {
 			cp += 5;
 			SKIP_WS(cp);
-			cp = unquote(cp);
+			cp = __acl_unquote(cp);
 			
 			if (path_p) {
 				if (*path_p)
@@ -483,7 +483,7 @@ read_acl_comments(
 			if (uid_p) {
 				if (*uid_p != ACL_UNDEFINED_ID)
 					goto fail;
-				if (get_uid(unquote(cp), uid_p) != 0)
+				if (get_uid(__acl_unquote(cp), uid_p) != 0)
 					continue;
 			}
 		} else if (strncmp(cp, "group:", 6) == 0) {
@@ -493,7 +493,7 @@ read_acl_comments(
 			if (gid_p) {
 				if (*gid_p != ACL_UNDEFINED_ID)
 					goto fail;
-				if (get_gid(unquote(cp), gid_p) != 0)
+				if (get_gid(__acl_unquote(cp), gid_p) != 0)
 					continue;
 			}
 		} else if (strncmp(cp, "flags:", 6) == 0) {
diff --git a/setfacl/setfacl.c b/setfacl/setfacl.c
index 81062a6..fb2d172 100644
--- a/setfacl/setfacl.c
+++ b/setfacl/setfacl.c
@@ -92,7 +92,7 @@ int promote_warning;
 
 static const char *xquote(const char *str, const char *quote_chars)
 {
-	const char *q = quote(str, quote_chars);
+	const char *q = __acl_quote(str, quote_chars);
 	if (q == NULL) {
 		fprintf(stderr, "%s: %s\n", progname, strerror(errno));
 		exit(1);
@@ -311,7 +311,7 @@ int next_file(const char *arg, seq_t seq)
 	args.seq = seq;
 
 	if (strcmp(arg, "-") == 0) {
-		while ((line = next_line(stdin)))
+		while ((line = __acl_next_line(stdin)))
 			errors = walk_tree(line, walk_flags, 0, do_set, &args);
 		if (!feof(stdin)) {
 			fprintf(stderr, _("%s: Standard input: %s\n"),
-- 
2.6.2