Merge NuttX r5527

nuttx/binfmt/Kconfig

@@ -49,6 +49,20 @@ if ELF
 source binfmt/libelf/Kconfig
 endif
 
+config BUILTIN
+	bool "Support Builtin Applications"
+	default n
+	---help---
+		Enable support for builtin applications.  This features assigns a string
+		name to an application and in addition if FS_BINFS is defined, retaining
+		those names in a file system from which they can be executed.  This feature
+		is also the underlying requirement to support built-in applications in the
+		NuttShell (NSH).
+
+if BUILTIN
+source binfmt/libbuiltin/Kconfig
+endif
+
 endif
 
 config PIC

nuttx/binfmt/Makefile

@@ -1,7 +1,7 @@
 ############################################################################
 # nxflat/Makefile
 #
-#   Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2007-2009, 2012-2013 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -65,6 +65,7 @@ DEPPATH = --dep-path .
 
 include libnxflat$(DELIM)Make.defs
 include libelf$(DELIM)Make.defs
+include libbuiltin$(DELIM)Make.defs
 
 BINFMT_AOBJS = $(BINFMT_ASRCS:.S=$(OBJEXT))
 BINFMT_COBJS = $(BINFMT_CSRCS:.c=$(OBJEXT))

nuttx/binfmt/binfmt_exec.c

@@ -1,7 +1,7 @@
 /****************************************************************************
  * binfmt/binfmt_exec.c
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2013 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,7 +40,6 @@
 #include <nuttx/config.h>
 
 #include <string.h>
-#include <sched.h>
 #include <debug.h>
 #include <errno.h>
 
@@ -96,6 +95,8 @@ int exec(FAR const char *filename, FAR const char **argv,
   struct binary_s bin;
   int ret;
 
+  /* Load the module into memory */
+
   memset(&bin, 0, sizeof(struct binary_s));
   bin.filename = filename;
   bin.exports  = exports;
@@ -108,7 +109,9 @@ int exec(FAR const char *filename, FAR const char **argv,
       return ERROR;
     }
 
-  ret = exec_module(&bin, 50);
+  /* Then start the module */
+
+  ret = exec_module(&bin);
   if (ret < 0)
     {
       bdbg("ERROR: Failed to execute program '%s'\n", filename);

nuttx/binfmt/binfmt_execmodule.c

@@ -1,7 +1,7 @@
 /****************************************************************************
  * binfmt/binfmt_execmodule.c
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2013 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -47,6 +47,7 @@
 #include <errno.h>
 
 #include <nuttx/arch.h>
+#include <nuttx/kmalloc.h>
 #include <nuttx/binfmt/binfmt.h>
 
 #include "os_internal.h"
@@ -143,7 +144,7 @@ static inline int exec_ctors(FAR const struct binary_s *binp)
  *
  ****************************************************************************/
 
-int exec_module(FAR const struct binary_s *binp, int priority)
+int exec_module(FAR const struct binary_s *binp)
 {
   FAR _TCB     *tcb;
 #ifndef CONFIG_CUSTOM_STACK
@@ -167,7 +168,7 @@ int exec_module(FAR const struct binary_s *binp, int priority)
 
   /* Allocate a TCB for the new task. */
 
-  tcb = (FAR _TCB*)zalloc(sizeof(_TCB));
+  tcb = (FAR _TCB*)kzalloc(sizeof(_TCB));
   if (!tcb)
     {
       err = ENOMEM;
@@ -177,7 +178,7 @@ int exec_module(FAR const struct binary_s *binp, int priority)
   /* Allocate the stack for the new task */
 
 #ifndef CONFIG_CUSTOM_STACK
-  stack = (FAR uint32_t*)malloc(binp->stacksize);
+  stack = (FAR uint32_t*)kmalloc(binp->stacksize);
   if (!tcb)
     {
       err = ENOMEM;
@@ -186,12 +187,12 @@ int exec_module(FAR const struct binary_s *binp, int priority)
 
   /* Initialize the task */
 
-  ret = task_init(tcb, binp->filename, priority, stack,
+  ret = task_init(tcb, binp->filename, binp->priority, stack,
                   binp->stacksize, binp->entrypt, binp->argv);
 #else
   /* Initialize the task */
 
-  ret = task_init(tcb, binp->filename, priority, stack,
+  ret = task_init(tcb, binp->filename, binp->priority, stack,
                   binp->entrypt, binp->argv);
 #endif
   if (ret < 0)
@@ -201,6 +202,9 @@ int exec_module(FAR const struct binary_s *binp, int priority)
       goto errout_with_stack;
     }
 
+  /* Note that tcb->flags are not modified.  0=normal task */
+  /* tcb->flags |= TCB_FLAG_TTYPE_TASK; */
+
   /* Add the D-Space address as the PIC base address.  By convention, this
    * must be the first allocated address space.
    */
@@ -257,14 +261,14 @@ errout_with_stack:
 #ifndef CONFIG_CUSTOM_STACK
   tcb->stack_alloc_ptr = NULL;
   sched_releasetcb(tcb);
-  free(stack);
+  kfree(stack);
 #else
   sched_releasetcb(tcb);
 #endif
   goto errout;
 
 errout_with_tcb:
-  free(tcb);
+  kfree(tcb);
 errout:
   errno = err;
   bdbg("returning errno: %d\n", err);

nuttx/binfmt/binfmt_loadmodule.c

@@ -66,6 +66,39 @@
  * Private Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: load_default_priority
+ *
+ * Description:
+ *   Set the default priority of the module to be loaded.  This may be
+ *   changed (1) by the actions of the binary format's load() method if
+ *   the binary format contains priority informaition, or (2) by the user
+ *   between calls to load_module() and exec_module().
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success; Otherwise, -1 (ERROR) is returned and
+ *   the errno variable is set appropriately.
+ *
+ ****************************************************************************/
+
+static int load_default_priority(FAR struct binary_s *bin)
+{
+  struct sched_param param;
+
+  /* Get the priority of this thread */
+
+  ret = sched_getparam(0, &param);
+  if (ret < 0)
+    {
+      bdbg("ERROR: sched_getparam failed: %d\n", errno);
+      return ERROR;
+    }
+  
+  /* Save that as the priority of child thread */
+
+  bin->priority = param.sched_priority;
+}
+
 /****************************************************************************
  * Name: load_absmodule
  *
@@ -145,6 +178,16 @@ int load_module(FAR struct binary_s *bin)
   if (bin && bin->filename)
 #endif
     {
+      /* Set the default priority of the new program. */
+
+      ret = load_default_priority(bin)
+      if (ret < 0)
+        {
+          /* The errno is already set in this case */
+
+          return ERROR;
+        }
+
       /* Were we given a relative path?  Or an absolute path to the file to
        * be loaded?  Absolute paths start with '/'.
        */

nuttx/binfmt/builtin.c

@@ -0,0 +1,196 @@
+/****************************************************************************
+ * binfmt/builtin.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <fcntl.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/fs/ioctl.h>
+#include <nuttx/binfmt/binfmt.h>
+#include <nuttx/binfmt/builtin.h>
+
+#ifdef CONFIG_BUILTIN
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static int builtin_loadbinary(FAR struct binary_s *binp);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static struct binfmt_s g_builtin_binfmt =
+{
+  NULL,               /* next */
+  builtin_loadbinary, /* load */
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: builtin_loadbinary
+ *
+ * Description:
+ *   Verify that the file is an builtin binary.
+ *
+ ****************************************************************************/
+
+static int builtin_loadbinary(struct binary_s *binp)
+{
+  FAR const char *filename;
+  int fd;
+  int index;
+  int ret;
+
+  bvdbg("Loading file: %s\n", binp->filename);
+
+  /* Open the binary file for reading (only) */
+
+  fd = open(filename, O_RDONLY);
+  if (fd < 0)
+    {
+      int errval = errno;
+      bdbg("ERROR: Failed to open binary %s: %d\n", filename, errval);
+      return -errval;
+    }
+
+  /* If this file is a BINFS file system, then we can recover the name of
+   * the file using the FIOC_FILENAME ioctl() call.
+   */
+
+  ret = ioctl(fd, FIOC_FILENAME, (unsigned long)((uintptr_t)&filename));
+  if (ret < 0)
+    {
+      int errval = errno;
+      bdbg("ERROR: FIOC_FILENAME ioctl failed: %d\n", errval);
+      return -errval;
+    }
+
+  /* Other file systems may also support FIOC_FILENAME, so the real proof
+   * is that we can look up the index to this name in g_builtins[].
+   */
+
+  index = builtin_isavail(filename);
+  if (index < 0)
+    {
+      int errval = errno;
+      bdbg("ERROR: %s is not a builtin application\n", filename);
+      return -errval;
+      
+    }
+
+  /* Return the load information.  NOTE: that there is no way to configure
+   * the priority.  That is a bug and needs to be fixed.
+   */
+
+  binp->entrypt   = g_builtins[index].main;
+  binp->stacksize = g_builtins[index].stacksize;
+  binp->priority  = g_builtins[index].priority;
+  return OK;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: builtin_initialize
+ *
+ * Description:
+ *   Builtin support is built unconditionally.  However, it order to
+ *   use this binary format, this function must be called during system
+ *   format in order to register the builtin binary format.
+ *
+ * Returned Value:
+ *   This is a NuttX internal function so it follows the convention that
+ *   0 (OK) is returned on success and a negated errno is returned on
+ *   failure.
+ *
+ ****************************************************************************/
+
+int builtin_initialize(void)
+{
+  int ret;
+
+  /* Register ourselves as a binfmt loader */
+
+  bvdbg("Registering Builtin Loader\n");
+
+  ret = register_binfmt(&g_builtin_binfmt);
+  if (ret != 0)
+    {
+      bdbg("Failed to register binfmt: %d\n", ret);
+    }
+
+  return ret;
+}
+
+/****************************************************************************
+ * Name: builtin_uninitialize
+ *
+ * Description:
+ *   Unregister the builtin binary loader
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+void builtin_uninitialize(void)
+{
+  unregister_binfmt(&g_builtin_binfmt);
+}
+
+#endif /* CONFIG_BUILTIN */
+

nuttx/binfmt/elf.c

@@ -183,7 +183,7 @@ static int elf_loadbinary(struct binary_s *binp)
 
   bvdbg("Loading file: %s\n", binp->filename);
 
-  /* Initialize the xflat library to load the program binary. */
+  /* Initialize the ELF library to load the program binary. */
 
   ret = elf_init(binp->filename, &loadinfo);
   elf_dumploadinfo(&loadinfo);

nuttx/binfmt/libbuiltin/Kconfig

@@ -0,0 +1,4 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#

nuttx/binfmt/libbuiltin/Make.defs

@@ -0,0 +1,52 @@
+############################################################################
+# binfmt/libbuiltin/Make.defs
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+ifeq ($(CONFIG_BUILTIN),y)
+
+# Builtin application interfaces
+
+BINFMT_CSRCS += builtin.c
+
+# Builtin library interfaces
+
+BINFMT_CSRCS += libbuiltin_getname.c libbuiltin_isavail.c
+
+# Hook the libbuiltin subdirectory into the build
+
+VPATH += libbuiltin
+SUBDIRS += libbuiltin
+DEPPATH += --dep-path libbuiltin
+
+endif

nuttx/binfmt/libbuiltin/libbuiltin_getname.c

@@ -0,0 +1,92 @@
+/****************************************************************************
+ * binfmt/libbuiltin/libbuiltin_getname.c
+ *
+ * Originally by:
+ *
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *   Author: Uros Platise <uros.platise@isotel.eu>
+ *
+ * With subsequent updates, modifications, and general maintenance by:
+ *
+ *   Copyright (C) 2012-2013 Gregory Nutt.  All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/binfmt/builtin.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: builtin_getname
+ *
+ * Description:
+ *   Return the name of the application at index in the table of builtin
+ *   applications.
+ *
+ ****************************************************************************/
+
+FAR const char *builtin_getname(int index)
+{
+  if (index < 0 || index >= number_builtins())
+   {
+     return NULL;
+   }
+
+  return g_builtins[index].name;
+}

nuttx/binfmt/libbuiltin/libbuiltin_isavail.c

@@ -0,0 +1,102 @@
+/****************************************************************************
+ * binfmt/libbuiltin/libbuiltin_isavail.c
+ *
+ * Originally by:
+ *
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *   Author: Uros Platise <uros.platise@isotel.eu>
+ *
+ * With subsequent updates, modifications, and general maintenance by:
+ *
+ *   Copyright (C) 2012-2013 Gregory Nutt.  All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <string.h>
+#include <limits.h>
+#include <errno.h>
+
+#include <nuttx/binfmt/builtin.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: builtin_isavail
+ *
+ * Description:
+ *   Return the index into the table of applications for the applicaiton with
+ *   the name 'appname'.
+ *
+ ****************************************************************************/
+
+int builtin_isavail(FAR const char *appname)
+{
+  int i;
+
+  for (i = 0; g_builtins[i].name; i++)
+    {
+      if (!strncmp(g_builtins[i].name, appname, NAME_MAX))
+        {
+          return i;
+        }
+    }
+
+  set_errno(ENOENT);
+  return ERROR;
+}