diff -r b3f24e23bc25 -r bf54085ce341 src/frontend.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/frontend.c	Wed Aug 31 14:41:56 2016 +0200
@@ -0,0 +1,185 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2016 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "c2html.h"
+#include "ucx/utils.h"
+
+#define FILEBUF_SIZE 4096
+
+typedef struct {
+    char* outfilename;
+    char* headerfile;
+    char* footerfile;
+    char* infilename;
+    int showlinenumbers;
+} Settings;
+
+static int appendfile(const char *filename, FILE *fout,
+        char *copybuf, size_t copybuflen, const char *errmsg) {
+    FILE *headerfile = fopen(filename, "r");
+    if (!headerfile) {
+        perror(errmsg);
+        if (fout != stdout) {
+            fclose(fout);
+        }
+        return 1;
+    }
+    ucx_stream_copy(headerfile, fout,
+            (read_func) fread, (write_func) fwrite,
+            copybuf, copybuflen, (size_t)-1);
+    fclose(headerfile);
+    return 0;
+}
+
+static void printhelp() {
+    printf("Formats source code using HTML.\n\nUsage:\n"
+        "  c2html [Options] FILE\n\n"
+        " Options:\n"
+        "  -h                    Prints this help message\n"
+        "  -j                    Highlight Java instead of C source code\n"
+        "  -o <output>           Output file (stdout, if not specified)\n"
+        "  -H <header>           Prepend header file\n"
+        "  -F <footer>           Append footer file\n"
+        "  -p                    Disable highlighting (plain text)\n"
+        "  -l                    Disable line numbers\n"
+        "  -V, -v                Prints version and exits\n"
+        "\n");
+}
+
+int main(int argc, char** argv) {
+
+    /* Default settings */
+    Settings settings;
+    memset(&settings, 0, sizeof(settings));
+    settings.showlinenumbers = 1;
+    c2html_highlighter_func hltr = c2html_c_highlighter;
+
+    /* Parse command line */
+    char optc;
+    while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) {
+        switch (optc) {
+            case 'o':
+                if (!(optarg[0] == '-' && optarg[1] == 0)) {
+                    settings.outfilename = optarg;
+                }
+                break;
+            case 'F':
+                settings.footerfile = optarg;
+                break;
+            case 'H':
+                settings.headerfile = optarg;
+                break;
+            case 'j':
+                hltr = c2html_java_highlighter;
+                break;
+            case 'p':
+                hltr = c2html_plain_highlighter;
+                break;
+            case 'l':
+                settings.showlinenumbers = 0;
+                break;
+            case 'h':
+                printhelp();
+                return EXIT_SUCCESS;
+            case 'v':
+            case 'V':
+#ifdef VERSION_DEVELOP
+                printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR);
+#else
+                printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR);
+#endif
+                return EXIT_SUCCESS;
+            default:
+                return EXIT_FAILURE;
+        }
+    }
+
+    if (optind != argc-1) {
+        printhelp();
+        return EXIT_FAILURE;
+    } else {
+        /* Open output file */
+        settings.infilename = argv[optind];
+        FILE *fout;
+        if (settings.outfilename) {
+            fout = fopen(settings.outfilename, "w");
+            if (!fout) {
+                perror("Error opening output file");
+                return EXIT_FAILURE;
+            }
+        } else {
+            fout = stdout;
+        }
+        
+        /* Allocate file buffer  */
+        char *filebuf = malloc(FILEBUF_SIZE);
+        if (!filebuf) {
+            perror("Error allocating file buffer");
+            return EXIT_FAILURE;
+        }
+        
+        /* Prepend header file */
+        if (appendfile(settings.headerfile, fout, filebuf, FILEBUF_SIZE,
+                "Error opening header file")) {
+            return EXIT_FAILURE;
+        }
+
+        /* Process input file */
+        FILE *inputfile = fopen(settings.infilename, "r");
+        if (inputfile) {
+            c2html_fformat_file(
+                    inputfile, filebuf, FILEBUF_SIZE,
+                    fout, hltr, settings.showlinenumbers
+            );
+            fclose(inputfile);
+        } else {
+            perror("Error opening input file");
+            if (fout != stdout) {
+                fclose(fout);
+            }
+            return EXIT_FAILURE;
+        }
+        
+        /* Append footer file */
+        if (appendfile(settings.footerfile, fout, filebuf, FILEBUF_SIZE,
+                "Error opening footer file")) {
+            return EXIT_FAILURE;
+        }
+        
+        free(filebuf);
+
+        return EXIT_SUCCESS;
+    }
+}
+