mirror of
https://github.com/ElvishArtisan/rivendell.git
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134 lines
2.7 KiB
C++
134 lines
2.7 KiB
C++
// cwrap.cpp
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//
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// A utility for wrapping arbitrary file data in C-compaibile source
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// statements.
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//
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// (C) Copyright 2003,2016 Fred Gleason <fredg@paravelsystems.com>
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//
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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 version 2 as
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// published by the Free Software Foundation.
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//
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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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//
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// You should have received a copy of the GNU General Public
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// License 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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//
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <cwrap.h>
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int main(int argc,char *argv[])
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{
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int input_fd;
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FILE *output_desc;
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char *input_name;
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char output_name[256];
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char var_name[256];
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bool found;
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struct stat stat;
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char line[LINE_LENGTH];
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int n;
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int count=0;
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//
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// Build Defaults
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//
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sprintf(output_name,"%s.c",argv[argc-1]);
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//
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// Process Arguments
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//
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for(int i=1;i<argc;i++) {
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found=false;
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if((!strcmp(argv[i],"-o"))||(!strcmp(argv[i],"--output-file"))) {
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found=true;
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if(i<(argc-2)) {
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strcpy(output_name,argv[++i]);
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}
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else {
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printf(USAGE);
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exit(1);
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}
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}
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if(i==(argc-1)) {
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input_name=argv[i];
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found=true;
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}
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if(!found) {
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printf(USAGE);
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exit(1);
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}
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}
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//
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// Set Variable Name
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//
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for(unsigned j=0;j<strlen(output_name);j++) {
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if(output_name[j]!='.') {
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var_name[j]=output_name[j];
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}
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else {
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var_name[j]=0;
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j=strlen(output_name);
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}
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}
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//
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// Open Files
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//
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if((input_fd=open(input_name,O_RDONLY))<0) {
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perror("wrapdat");
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exit(1);
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}
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if((output_desc=fopen(output_name,"w"))==NULL) {
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perror("wrapdat");
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exit(1);
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}
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//
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// Get Size of Source File and Write Header
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//
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memset(&stat,0,sizeof(struct stat));
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if(fstat(input_fd,&stat)) {
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perror("wrapdat");
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exit(1);
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}
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fprintf(output_desc,"const unsigned char %s[%ld] = {\n",
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var_name,stat.st_size+1);
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//
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// Write Body
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//
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for(int i=0;i<(stat.st_size/LINE_LENGTH+1);i++) {
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n=read(input_fd,line,LINE_LENGTH);
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for(int j=0;j<n;j++) {
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fprintf(output_desc,"%d,",0xFF&line[j]);
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count++;
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}
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if(n>0) {
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fprintf(output_desc,"\n");
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}
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}
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fprintf(output_desc,"0};\n");
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//
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// Finish Up
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//
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close(input_fd);
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fclose(output_desc);
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exit(0);
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}
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