entered into RCS

From-SVN: r14022

gcc/doschk.c

+/*
+**  DosFCheck - check file names for DOS consistency
+**
+**  Distribute freely, it only encourages DOS compatibility!
+**  - DJ Delorie
+*/
+
+/* This file is not part of GCC.  */
+
+#include <stdio.h>
+#ifdef __MSDOS__
+#include <alloc.h>
+#else
+#include <malloc.h>
+#endif
+#include <ctype.h>
+#include <string.h>
+
+typedef struct ENT
+{
+  struct ENT *next;
+  char *dos_name;
+  char *full_name;
+  char *path;
+  int tagged;
+} ENT;
+
+ENT *eroot = 0;
+
+int first_inv = 1;
+int first_msg = 1;
+
+/****************************************************************\
+ *  Utility routines						*
+\****************************************************************/
+
+void
+invalid_msg ()
+{
+  if (first_inv)
+    {
+      if (first_msg)
+	first_msg = 0;
+      else
+	putchar ('\n');
+      printf ("The following files are not valid DOS file names:\n");
+      first_inv = 0;
+    }
+}
+
+ENT *
+alloc_ent ()
+{
+  ENT *rv = (ENT *)malloc (sizeof (ENT));
+  if (rv == 0)
+    {
+      fprintf (stderr, "Unable to allocate memory for an ENT\n");
+      exit (1);
+    }
+  memset (rv, 0, sizeof (ENT));
+  return rv;
+}
+
+void
+fill_ent (ent, path)
+ENT *ent;
+char *path;
+{
+  char *first = path;
+  char *null = path+strlen (path);
+  char *last_slash = strrchr (path, '/');
+  char *cp, *dp;
+  int dots_seen, chars_seen;
+  
+  if (last_slash+1 == null)
+    {
+      * --null = '\0';
+      last_slash = strrchr (path, '/');
+    }
+  
+  if (!last_slash)
+    {
+      last_slash = first-1;
+    }
+
+  if (null-last_slash < 13)
+    ent->dos_name = (char *)malloc (null-last_slash);
+  else
+    ent->dos_name = (char *)malloc (13);
+  ent->full_name = (char *)malloc (null-last_slash);
+  ent->path = (char *)malloc (last_slash-first+1);
+
+  strcpy (ent->full_name, last_slash+1);
+  if (last_slash > first)
+    {
+      strncpy (ent->path, first, last_slash-first);
+      ent->path[last_slash-first] = '\0';
+    }
+  else
+    *ent->path = '\0';
+
+  cp = last_slash+1;
+  dp = ent->dos_name;
+  dots_seen = 0;
+  chars_seen = 0;
+  while (1)
+    {
+      if (! *cp)
+	break;
+      switch (*cp)
+	{
+	case '.':
+	  if (cp == last_slash+1 && strcmp (last_slash+1, "."))
+	    {
+	      invalid_msg ();
+	      printf ("%s - file name cannot start with dot\n", path);
+	      *dp = 0;
+	      break;
+	    }
+	  if (dots_seen == 1)
+	    {
+	      invalid_msg ();
+	      printf ("%s - too many dots\n", path);
+	      *dp = '\0';
+	      break;
+	    }
+	  *dp++ = '.';
+	  chars_seen = 0;
+	  dots_seen++;
+	  break;
+	case '"':
+	case '*':
+	case '+':
+	case ',':
+	case ';':
+	case '<':
+	case '=':
+	case '>':
+	case '?':
+	case '[':
+	case '\\':
+	case ']':
+	case '|':
+	  invalid_msg ();
+	  printf ("%s - invalid character `%c'\n", path, *cp);
+	  *dp++ = '?';
+	  chars_seen++;
+	  break;
+	default:
+	  if (dots_seen)
+	    {
+	      if (chars_seen >= 3)
+		break;
+	    }
+	  else
+	    if (chars_seen >= 8)
+	      break;
+	  if ((*cp <= ' ') || (*cp >= 0x7f))
+	    {
+	      invalid_msg ();
+	      printf ("%s - invalid character `%c'\n", path, *cp);
+	      *dp++ = '?';
+	      chars_seen++;
+	      break;
+	    }
+	  if (islower (*cp))
+	    *dp++ = toupper (*cp);
+	  else
+	    *dp++ = *cp;
+	  chars_seen++;
+	  break;
+	}
+      cp++;
+    }
+  *dp++ = '\0';
+}
+
+int
+compare_ent_dosname (e1, e2)
+ENT **e1;
+ENT **e2;
+{
+  int r = strcmp ((*e1)->dos_name, (*e2)->dos_name);
+  if (r == 0)
+    r = strcmp ((*e1)->path, (*e2)->path);
+  if (r == 0)
+    r = strcmp ((*e1)->full_name, (*e2)->full_name);
+  return r;
+}
+
+int
+compare_ent_fullname (e1, e2)
+ENT **e1;
+ENT **e2;
+{
+  int r = strncmp ((*e1)->full_name, (*e2)->full_name, 14);
+  if (r == 0)
+    r = strcmp ((*e1)->path, (*e2)->path);
+  if (r == 0)
+    r = strcmp ((*e1)->full_name, (*e2)->full_name);
+  return r;
+}
+
+char *
+mpath (ent)
+ENT *ent;
+{
+  static char buf[500];
+  if (ent->path && ent->path[0])
+    sprintf (buf, "%s/%s", ent->path, ent->full_name);
+  else
+    return ent->full_name;
+  return buf;
+}
+
+/****************************************************************\
+ *  List handling routines					*
+\****************************************************************/
+
+void
+add_ent (ent)
+ENT *ent;
+{
+  ent->next = eroot;
+  eroot = ent;
+}
+
+void
+handle_input (line)
+char *line;
+{
+  ENT *ent = alloc_ent ();
+  fill_ent (ent, line);
+  add_ent (ent);
+}
+
+void
+display_problems ()
+{
+  ENT **elist, *ent;
+  int ecount, i, first, first_err;
+  
+  for (ecount=0, ent=eroot; ent; ent=ent->next, ecount++);
+  elist = (ENT **)malloc (sizeof (ENT *) * ecount);
+  for (ecount=0, ent=eroot; ent; ent=ent->next, ecount++)
+    elist[ecount] = ent;
+
+  qsort (elist, ecount, sizeof (ENT *), compare_ent_dosname);
+
+  first = 1;
+  first_err = 1;
+  for (i=0; i<ecount-1; i++)
+    {
+      if ((strcmp (elist[i]->dos_name, elist[i+1]->dos_name) == 0)
+	  && (strcmp (elist[i]->path, elist[i+1]->path) == 0))
+	{
+	  if (first_err)
+	    {
+	      if (first_msg)
+		first_msg = 0;
+	      else
+		putchar ('\n');
+	      printf ("The following resolve to the same DOS file names:\n");
+	      first_err = 0;
+	    }
+	  if (first)
+	    {
+	      printf ("%14s : %s\n", elist[i]->dos_name, mpath (elist[i]));
+	      first = 0;
+	    }
+	  printf ("\t\t %s\n", mpath (elist[i+1]));
+	}
+      else
+	first = 1;
+    }
+
+  qsort (elist, ecount, sizeof (ENT *), compare_ent_fullname);
+
+  first = 1;
+  first_err = 1;
+  for (i=0; i<ecount-1; i++)
+    {
+      if ((strncmp (elist[i]->full_name, elist[i+1]->full_name, 14) == 0)
+	  && (strcmp (elist[i]->path, elist[i+1]->path) == 0))
+	{
+	  if (first_err)
+	    {
+	      if (first_msg)
+		first_msg = 0;
+	      else
+		putchar ('\n');
+	      printf ("The following resolve to the same SysV file names:\n");
+	      first_err = 0;
+	    }
+	  if (first)
+	    {
+	      printf ("%.14s : %s\n", elist[i]->full_name, mpath (elist[i]));
+	      first = 0;
+	      elist[i]->tagged = 1;
+	    }
+	  printf ("\t\t %s\n", mpath (elist[i+1]));
+	  elist[i+1]->tagged = 1;
+	}
+      else
+	first = 1;
+    }
+
+  first_err = 1;
+  for (i=0; i<ecount; i++)
+    {
+      if ((strlen (elist[i]->full_name) > 14) && !elist[i]->tagged)
+	{
+	  if (first_err)
+	    {
+	      if (first_msg)
+		first_msg = 0;
+	      else
+		putchar ('\n');
+	      printf ("The following file names are too long for SysV:\n");
+	      first_err = 0;
+	    }
+	  printf ("%.14s : %s\n", elist[i]->full_name, mpath (elist[i]));
+	}
+    }
+}
+
+/****************************************************************\
+ *  Main entry point						*
+\****************************************************************/
+
+main (argc, argv)
+int argc;
+char **argv;
+{
+  FILE *input = stdin;
+  if (argc > 1)
+    {
+      input = fopen (argv[1], "r");
+      if (!input)
+	{
+	  perror (argv[1]);
+	  exit (1);
+	}
+    }
+  while (1)
+    {
+      char line[500];
+      char *lp;
+      fgets (line, 500, input);
+      if (feof (input))
+	break;
+      lp = line+strlen (line);
+      while ((lp != line) && (*lp <= ' '))
+	lp--;
+      lp[1] = 0;
+      handle_input (line);
+    }
+  display_problems ();
+}
+