194e4b9fec
calling 'luidgen' with a list of filenames replaces the word LUIDGEN in each of this files with a octal escaped string consisting a unique identifier add luid formatter help macros to luid.h let compilation of files which contain the word 'LUIDGEN' fail with a hopefully self-explaining error message
124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
/*
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luidgen.c - generate a lumiera uuid
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Copyright (C) Lumiera.org
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2008 Christian Thaeter <ct@pipapo.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "lib/safeclib.h"
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#include "lib/luid.h"
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#include <unistd.h>
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#include <stdint.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <nobug.h>
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/**
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* @file
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* Generate amd print a Lumiera uid as octal escaped string
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* or process a file replaceing 'LUIDGEN' with a octal escaped string
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*/
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int
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main (int argc, char** argv)
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{
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NOBUG_INIT;
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lumiera_uid luid;
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if (argc == 1)
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{
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lumiera_uid_gen (&luid);
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printf ("\"");
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for (int i = 0; i < 16; ++i)
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printf ("\\%.3hho", *(((char*)&luid)+i));
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printf ("\"\n");
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}
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else
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{
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for (int i = 1; i < argc; ++i)
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{
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FILE* in = fopen (argv[i], "r");
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if (!in)
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{
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fprintf (stderr, "Failed to open file %s for reading: %s\n", argv[i], strerror (errno));
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continue;
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}
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char* outname = lumiera_tmpbuf_snprintf (SIZE_MAX, "%s.luidgen", argv[i]);
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FILE* out = fopen (outname, "wx");
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if (!out)
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{
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fprintf (stderr, "Failed to open file %s for writing: %s\n", outname, strerror (errno));
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fclose (in);
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continue;
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}
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char buf[4096];
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char luidbuf[67];
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printf ("Luidgen %s ", argv[i]); fflush (stdout);
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while (fgets (buf, 4096, in))
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{
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char* pos;
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while ((pos = strstr(buf, "LUIDGEN")))
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{
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memmove (pos+66, pos+7, strlen (pos+7)+1);
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lumiera_uid_gen (&luid);
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sprintf (luidbuf, "\""LUMIERA_UID_FMT"\"", LUMIERA_UID_ELEMENTS(luid));
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memcpy (pos, luidbuf, 66);
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putchar ('.'); fflush (stdout);
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}
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fputs (buf, out);
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}
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fclose (out);
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fclose (in);
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char* backup = lumiera_tmpbuf_snprintf (SIZE_MAX, "%s~", argv[i]);
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unlink (backup);
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if (!!rename (argv[i], backup))
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{
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fprintf (stderr, "Failed to create backupfile %s: %s\n", backup, strerror (errno));
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continue;
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}
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if (!!rename (outname, argv[i]))
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{
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fprintf (stderr, "Renaming %s to %s failed: %s\n", outname, argv[i], strerror (errno));
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rename (backup, argv[i]);
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continue;
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}
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printf (" done\n");
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}
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}
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return 0;
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}
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/*
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// Local Variables:
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// mode: C
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// c-file-style: "gnu"
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// indent-tabs-mode: nil
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// End:
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*/
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