Added pnd_info.c since I'm an idiot

diff --git a/apps/pnd_info.c b/apps/pnd_info.c
new file mode 100644 (file)
index 0000000..a2acb4b
--- /dev/null
+++ b/apps/pnd_info.c
@@ -0,0 +1,113 @@
+
+#include <stdio.h> /* for printf, NULL */
+#include <stdlib.h> /* for free */
+#include <string.h> /* for strdup */
+
+#include "pnd_conf.h"
+#include "pnd_container.h"
+#include "pnd_apps.h"
+#include "pnd_discovery.h"
+#include "pnd_locate.h"
+#include "pnd_pndfiles.h"
+#include "pnd_pxml.h"
+
+static void usage ( char *argv[] ) {
+  printf ( "%s\tObtain a description, install guide or other info about a pnd-file\n", argv [ 0 ] );
+  printf ( "\n" );
+  printf ( "%s path-to-pndfile [section] [section-2...]\n", argv [ 0 ] );
+  printf ( "\n" );
+  printf ( "section\tOptional. If not specified, general description is shown. (Section 'description')\n" );
+  printf ( "\tIf present, show the named section of the PXML -- such as to obtain install instructions etc.\n" );
+  printf ( "pndfile\tRequired. Full path to the pnd-file to execute.\n" );
+  return;
+}
+
+#define SECTIONMAX 100
+
+int main ( int argc, char *argv[] ) {
+  char *pndfile = NULL;
+  char *section [ SECTIONMAX ];
+  unsigned char sections = 0;
+  int i;
+
+  for ( i = 1; i < argc; i++ ) {
+
+    if ( ! pndfile ) {
+      pndfile = argv [ i ];
+      continue;
+    }
+
+    section [ sections++ ] = argv [ i ];
+
+    if ( sections == SECTIONMAX ) {
+      break;
+    }
+
+  } // for args
+
+  if ( ! pndfile ) {
+    usage ( argv );
+    exit ( 0 );
+  }
+
+  if ( ! sections ) {
+    section [ sections++ ] = "description";
+  }
+
+  // summary
+  printf ( "Pndfile\t%s\n", pndfile );
+  printf ( "Sections to include:\n" );
+  for ( i = 0; i < sections; i++ ) {
+    printf ( "- %s\n", section [ i ] );
+  } // for
+  printf ( "\n" );
+
+  // pull PXML
+  unsigned int pxmlbuflen = 96 * 1024; // lame, need to calculate it
+  char *pxmlbuf = malloc ( pxmlbuflen );
+  if ( ! pxmlbuf ) {
+    printf ( "ERROR: RAM exhausted!\n" );
+    exit ( 0 );
+  }
+  memset ( pxmlbuf, '\0', pxmlbuflen );
+
+  FILE *f = fopen ( pndfile, "r" );
+  if ( ! f ) {
+    printf ( "ERROR: Couldn't open pndfile %s!\n", pndfile );
+    exit ( 0 );
+  }
+
+  pnd_pxml_handle h = NULL;
+  if ( pnd_pnd_seek_pxml ( f ) ) {
+    if ( pnd_pnd_accrue_pxml ( f, pxmlbuf, pxmlbuflen ) ) {
+      h = pnd_pxml_fetch_buffer ( "pnd_run", pxmlbuf );
+    }
+  }
+
+  fclose ( f );
+
+  if ( ! h ) {
+    printf ( "ERROR: Couldn't pull PXML.xml from the pndfile.\n" );
+    exit ( 0 );
+  }
+
+  // display sections
+  for ( i = 0; i < sections; i++ ) {
+    char *t;
+
+    if ( strcasecmp ( section [ i ], "description" ) == 0 ) {
+
+      printf ( "Section: %s\n", section [ i ] );
+
+      if ( ( t = pnd_pxml_get_description_en ( h ) ) ) {
+       printf ( "%s\n", t );
+      } else {
+       printf ( "Not supplied by PXML.xml in the pnd-file\n" );
+      }
+
+    }
+
+  } // for
+
+  return ( 0 );
+} // main