2009-08-05 Joel Sherrill <joel.sherrill@oarcorp.com>

	* libmisc/bspcmdline/bspcmdline.h, libmisc/bspcmdline/bspcmdline_get.c,
	libmisc/bspcmdline/bspcmdline_getparam.c,
	libmisc/bspcmdline/bspcmdline_getparamraw.c,
	libmisc/bspcmdline/bspcmdline_getparamrhs.c: New files.
	Missed in previous commit.

5 files changed, 288 insertions, 0 deletions

diff --git a/cpukit/libmisc/bspcmdline/bspcmdline.h b/cpukit/libmisc/bspcmdline/bspcmdline.h
new file mode 100644
index 0000000000..a32933ffaf
--- /dev/null
+++ b/cpukit/libmisc/bspcmdline/bspcmdline.h
@@ -0,0 +1,127 @@
+/**
+ *  @file  rtems/bspcmdline.h
+ *
+ *  This include file contains all prototypes and specifications
+ *  related to the BSP Command Line String and associated helper
+ *  routines.  The helpers are useful for locating command line
+ *  type arguments (e.g. --mode) and their associated right
+ *  hand side (e.g. FAST in --mode=FAST).
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#ifndef __BSP_COMMAND_LINE_h
+#define __BSP_COMMAND_LINE_h
+
+/**
+ *  @defgroup BSPCommandLine BSP Command Line Helpers
+ *
+ *  The BSP Command Line Handler provides a set of routines which assist
+ *  in examining and decoding the Command Line String passed to the BSP
+ *  at boot time.
+ */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <string.h>
+
+/**
+ *  @brief Obtain Pointer to BSP Boot Command String
+ *
+ *  This method returns a pointer to the BSP Boot Command String.  It
+ *  is as likely to be NULL as point to a string as most BSPs do not
+ *  have a start environment that provides a boot string.
+ *
+ *  @return This method returns the pointer to the BSP Boot Command String.
+ */
+const char *bsp_cmdline_get(void);
+
+/**
+ *  @brief Obtain COPY of the Entire Matching Argument
+ *
+ *  This method searches for the argument @a name in the BSP Boot Command
+ *  String and returns a copy of the entire string associated with it in
+ *  @a value up to a string of @a length.  This will include the argument
+ *  and any right hand side portion of the string.  For example, one might
+ *  be returned --mode=FAST if
+ *  searching for --mode.
+ *
+ *  @param[in] name is the arugment to search for
+ *  @param[in] value points to where the contents will
+ *             be placed if located.
+ *  @param[in] length is the maximum length to copy
+ *
+ *  @return This method returns NULL if not found and
+ *          @a value if found.
+ */
+const char *bsp_cmdline_get_param(
+  const char *name,
+  char       *value,
+  size_t      length
+);
+
+
+/**
+ *  @brief Obtain COPY of the Right Hand Side of the Matching Argument
+ *
+ *  This method searches for the argument @a name in
+ *  the BSP Boot Command String and returns the right hand side
+ *  associated with it in @a value up to a maximum string @a length.
+ *  This will NOT include the argument but only any right hand side
+ *  portion of the string. *  For example, one might be returned FAST if
+ *  searching for --mode.
+ *
+ *  @param[in] name is the arugment to search for
+ *  @param[in] value points to where the contents will
+ *             be placed if located.
+ *  @param[in] length is the maximum length to copy
+ *
+ *  @return This method returns NULL if not found and
+ *          @a value if found.
+ */
+const char *bsp_cmdline_get_param_rhs(
+  const char *name,
+  char       *value,
+  size_t      length
+);
+
+/**
+ *  @brief Obtain Pointer to the Entire Matching Argument
+ *
+ *  This method searches for the argument @a name in
+ *  the BSP Boot Command String and returns a pointer to the
+ *  entire string associated with it.  This will include the
+ *  argument and any right hand side portion of the string.
+ *  For example, one might be returned --mode=FAST if
+ *  searching for --mode.
+ *
+ *  @param[in] name is the arugment to search for
+ *
+ *  @return This method returns NULL if not found and a pointer
+ *          into the BSP Boot Command String if found.
+ *
+ *  @note The pointer will be to the original BSP Command
+ *        Line string.  Exercise caution when using this.
+ */
+const char *bsp_cmdline_get_param_raw(
+  const char *name
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif
diff --git a/cpukit/libmisc/bspcmdline/bspcmdline_get.c b/cpukit/libmisc/bspcmdline/bspcmdline_get.c
new file mode 100644
index 0000000000..cb088c8e1e
--- /dev/null
+++ b/cpukit/libmisc/bspcmdline/bspcmdline_get.c
@@ -0,0 +1,19 @@
+/*
+ *  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <rtems/bspcmdline.h>
+
+extern const char *bsp_boot_cmdline;
+
+const char *bsp_cmdline_get(void)
+{
+  return bsp_boot_cmdline;
+}
diff --git a/cpukit/libmisc/bspcmdline/bspcmdline_getparam.c b/cpukit/libmisc/bspcmdline/bspcmdline_getparam.c
new file mode 100644
index 0000000000..0df08c91d7
--- /dev/null
+++ b/cpukit/libmisc/bspcmdline/bspcmdline_getparam.c
@@ -0,0 +1,67 @@
+/*
+ *  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <rtems/bspcmdline.h>
+
+#include <stdio.h>
+
+static void copy_string(
+  const char *start,
+  char       *value,
+  size_t      length
+)
+{
+  int         i;
+  int         quotes;
+  const char *p = start;
+
+  quotes=0;
+  for (i=0 ; *p && i<length-1; ) {
+    if ( *p == '\"' ) {
+      quotes++;
+    } else if ( ((quotes % 2) == 0) && *p == ' ' )
+      break;
+    value[i++] = *p++;
+    value[i] = '\0';
+  }
+
+}
+
+const char *bsp_cmdline_get_param(
+  const char *name,
+  char       *value,
+  size_t      length
+)
+{
+  const char *p;
+  
+  if ( !name )
+    return NULL;
+  
+  if ( !value )
+    return NULL;
+  
+  if ( !length )
+    return NULL;
+  
+  value[0] = '\0';
+
+  p = bsp_cmdline_get_param_raw( name );
+
+  if ( !p )
+    return NULL;
+
+  copy_string( p, value, length );
+
+  return value;
+}
+
+
diff --git a/cpukit/libmisc/bspcmdline/bspcmdline_getparamraw.c b/cpukit/libmisc/bspcmdline/bspcmdline_getparamraw.c
new file mode 100644
index 0000000000..e0fb431c58
--- /dev/null
+++ b/cpukit/libmisc/bspcmdline/bspcmdline_getparamraw.c
@@ -0,0 +1,33 @@
+/*
+ *  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <rtems/bspcmdline.h>
+
+#include <stdio.h>
+
+extern const char *bsp_boot_cmdline;
+
+const char *bsp_cmdline_get_param_raw(
+  const char *name
+)
+{
+  const char *p;
+
+  if ( !name )
+    return NULL;
+   
+  if ( !bsp_boot_cmdline )
+    return NULL;
+
+  p = strstr(bsp_boot_cmdline, name);
+  /* printf( "raw: %p (%s)\n", p, p ); */
+  return p;
+}
diff --git a/cpukit/libmisc/bspcmdline/bspcmdline_getparamrhs.c b/cpukit/libmisc/bspcmdline/bspcmdline_getparamrhs.c
new file mode 100644
index 0000000000..2f96cfb02d
--- /dev/null
+++ b/cpukit/libmisc/bspcmdline/bspcmdline_getparamrhs.c
@@ -0,0 +1,42 @@
+/*
+ *  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <rtems/bspcmdline.h>
+
+const char *bsp_cmdline_get_param_rhs(
+  const char *name,
+  char       *value,
+  size_t      length
+)
+{
+  const char *p;
+  const char *rhs;
+  char       *d;
+
+  p = bsp_cmdline_get_param( name, value, length );
+  if ( !p )
+    return NULL;
+
+  rhs = &p[strlen(name)];
+  if ( *rhs != '=' )
+    return NULL;
+
+  rhs++;
+  if ( *rhs == '\"' )
+    rhs++;
+  for ( d=value ; *rhs ; )
+    *d++ = *rhs++;
+  if ( *(d-1) == '\"' )
+    d--;
+  *d = '\0';
+    
+  return value;
+}