Move sys_realpath() to libreplace.

4 files changed, 18 insertions, 1 deletions

diff --git a/lib/replace/README b/lib/replace/README
index 1005281a6b..c1cb2d0270 100644
--- a/lib/replace/README
+++ b/lib/replace/README
@@ -69,6 +69,7 @@ utimes
 link
 readlink
 symlink
+realpath
 
 Types:
 bool
diff --git a/lib/replace/libreplace.m4 b/lib/replace/libreplace.m4
index cc9be162ac..c67fa66f5c 100644
--- a/lib/replace/libreplace.m4
+++ b/lib/replace/libreplace.m4
@@ -108,7 +108,7 @@ AC_CHECK_FUNCS(seteuid setresuid setegid setresgid chroot bzero strerror)
 AC_CHECK_FUNCS(vsyslog setlinebuf mktime ftruncate chsize rename)
 AC_CHECK_FUNCS(waitpid strlcpy strlcat initgroups memmove strdup)
 AC_CHECK_FUNCS(pread pwrite strndup strcasestr strtok_r mkdtemp)
-AC_CHECK_FUNCS(isatty chown lchown link readlink symlink)
+AC_CHECK_FUNCS(isatty chown lchown link readlink symlink realpath)
 AC_HAVE_DECL(setresuid, [#include <unistd.h>])
 AC_HAVE_DECL(setresgid, [#include <unistd.h>])
 AC_HAVE_DECL(errno, [#include <errno.h>])
diff --git a/lib/replace/replace.c b/lib/replace/replace.c
index f4faef992a..d757a0154e 100644
--- a/lib/replace/replace.c
+++ b/lib/replace/replace.c
@@ -658,3 +658,14 @@ int rep_lchown(const char *fname,uid_t uid,gid_t gid)
 	return -1;
 }
 #endif
+
+#ifndef HAVE_REALPATH
+char *rep_realpath(const char *path, char *resolved_path)
+{
+	/* As realpath is not a system call we can't return ENOSYS. */
+	errno = EINVAL;
+	return NULL;
+}
+#endif
+
+
diff --git a/lib/replace/replace.h b/lib/replace/replace.h
index b81bf5c576..8d0dd57064 100644
--- a/lib/replace/replace.h
+++ b/lib/replace/replace.h
@@ -235,6 +235,11 @@ int rep_readlink(const char *path, char *buf, size_t bufsize);
 int rep_symlink(const char *oldpath, const char *newpath);
 #endif
 
+#ifndef HAVE_REALPATH
+#define realpath rep_realpath
+char *rep_realpath(const char *path, char *resolved_path);
+#endif
+
 #ifndef HAVE_LCHOWN
 #define lchown rep_lchown
 int rep_lchown(const char *fname,uid_t uid,gid_t gid);