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sysadm |
1.1 |
/*
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Copyright (C) 2000 Marco Ziech (mmz@gmx.net)
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Copyright (C) 2000 Ross Combs (rocombs@cs.nmsu.edu)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "common/setup_before.h"
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#ifdef HAVE_STDDEF_H
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# include <stddef.h>
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#else
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# ifndef NULL
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# define NULL ((void *)0)
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# endif
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#endif
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#endif
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#include "compat/exitstatus.h"
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#include <errno.h>
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#include "compat/strerror.h"
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#include "tga.h"
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#include "fileio.h"
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#include "common/version.h"
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#include "common/setup_after.h"
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static void usage(char const * progname)
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{
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fprintf(stderr,
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"usage: %s [<options>] [--] [<TGA file>]\n"
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" -h, --help, --usage show this information and exit\n"
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" -v, --version print version number and exit\n",progname);
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exit(STATUS_FAILURE);
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}
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extern int main(int argc, char * argv[])
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{
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char const * tgafile=NULL;
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FILE * fp;
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int a;
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int forcefile=0;
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char dash[]="-"; /* unique address used as flag */
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if (argc<1 || !argv || !argv[0])
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{
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fprintf(stderr,"bad arguments\n");
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return STATUS_FAILURE;
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}
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for (a=1; a<argc; a++)
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if (forcefile && !tgafile)
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tgafile = argv[a];
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else if (strcmp(argv[a],"-")==0 && !tgafile)
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tgafile = dash;
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else if (argv[a][0]!='-' && !tgafile)
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tgafile = argv[a];
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else if (forcefile || argv[a][0]!='-' || strcmp(argv[a],"-")==0)
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{
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fprintf(stderr,"%s: extra file argument \"%s\"\n",argv[0],argv[a]);
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usage(argv[0]);
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}
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else if (strcmp(argv[a],"--")==0)
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forcefile = 1;
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else if (strcmp(argv[a],"-v")==0 || strcmp(argv[a],"--version")==0)
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{
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printf("version "PVPGN_VERSION"\n");
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return STATUS_SUCCESS;
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}
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else if (strcmp(argv[a],"-h")==0 || strcmp(argv[a],"--help")==0 || strcmp(argv[a],"--usage")
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==0)
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usage(argv[0]);
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else
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{
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fprintf(stderr,"%s: unknown option \"%s\"\n",argv[0],argv[a]);
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usage(argv[0]);
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}
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if (!tgafile)
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tgafile = dash;
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if (tgafile==dash)
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fp = stdin;
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else
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if (!(fp = fopen(tgafile,"r")))
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{
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fprintf(stderr,"%s: could not open TGA file \"%s\" for reading (fopen: %s)\n",argv[0],tgafile,pstrerror(errno));
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return STATUS_FAILURE;
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}
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{
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t_tgaimg * tgaimg;
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file_rpush(fp);
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if (!(tgaimg = load_tgaheader()))
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{
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fprintf(stderr,"%s: could not load TGA header\n",argv[0]);
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if (tgafile!=dash && fclose(fp)<0)
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fprintf(stderr,"%s: could not close file \"%s\" after reading (fclose: %s)\n",argv[0],tgafile,pstrerror(errno));
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return STATUS_FAILURE;
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}
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print_tga_info(tgaimg,stdout);
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file_rpop();
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}
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if (tgafile!=dash && fclose(fp)<0)
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fprintf(stderr,"%s: could not close file \"%s\" after reading (fclose: %s)\n",argv[0],tgafile,pstrerror(errno));
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return STATUS_SUCCESS;
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}
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