Initial version

.gitignore

@@ -0,0 +1,2 @@
+a.out
+bin2xpm

bin2xpm.c

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+/*
+ * This file was originally written by Gergely Polonkai, and is
+ * licensed inder the DBAD:
+ *
+ * Do whatever you like with the original work, just don't be a dick.
+ *
+ * Being a dick includes - but is not limited to - the following
+ * instances:
+
+ *   1a. Outright copyright infringement - Don't just copy this and
+ *       change the name.
+ *   1b. Selling the unmodified original with no work done
+ *       what-so-ever, that's REALLY being a dick.
+ *   1c. Modifying the original work to contain hidden harmful
+ *       content. That would make you a PROPER dick.
+ *
+ * If you become rich through modifications, related works/services,
+ * or supporting the original work, share the love. Only a dick would
+ * make loads off this work and not buy the original work's creator(s)
+ * a pint.
+ *
+ * Code is provided with no warranty. Using somebody else's code and
+ * bitching when it goes wrong makes you a DONKEY dick. Fix the
+ * problem yourself. A non-dick would submit the fix back.
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <math.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <string.h>
+
+int
+main(int argc, char **argv)
+{
+    FILE *binfile;
+    struct stat ret;
+    int i;
+    signed int found_width = -1;
+    unsigned int less_height = -1;
+    int found_height;
+    void *filemap;
+    off_t a;
+    char *xpm_line;
+
+    static int valid_widths[] = {320, 640, 800, 1024, 1280, 1600};
+
+    if (argc < 2) {
+        fprintf(stderr, "Usage: %s <binfile>\n", argv[0]);
+        fprintf(stderr,
+                "\tWhere <binfile> is a binary representation of a file,\n"
+                "created with bindump\n");
+
+        return 1;
+    }
+
+    if ((binfile = fopen(argv[1], "r")) == NULL) {
+        fprintf(stderr, "Unable to open file '%s'\n", argv[1]);
+
+        return 1;
+    }
+
+    if (stat(argv[1], &ret) != 0) {
+        fprintf(stderr, "Unable to stat file '%s'\n", argv[1]);
+
+        return 1;
+    }
+
+    for (i = 0; i < sizeof(valid_widths) / sizeof(int); i++) {
+        int height;
+        int best_height;
+        int diff;
+
+        best_height = (int)ceil(valid_widths[i] * 0.75);
+        height = (int)ceil(ret.st_size / valid_widths[i]);
+        diff = abs(best_height - height);
+
+        if (diff < less_height) {
+            less_height = diff;
+            found_width = i;
+        }
+    }
+
+    if (found_width == -1) {
+        fprintf(stderr,
+                "Couldn't find the best size for the image\n"
+                "(VERY strange... should never happen)\n");
+
+        return 1;
+    }
+
+    found_height = (int)ceil((float)ret.st_size
+                   / (float)valid_widths[found_width]);
+
+    filemap = mmap(NULL,
+                   ret.st_size,
+                   PROT_READ,
+                   MAP_PRIVATE,
+                   fileno(binfile),
+                   0);
+
+    if (filemap == NULL) {
+        fprintf(stderr, "Unable to mmap file '%s'\n", argv[1]);
+        return 1;
+    }
+
+    fprintf(stdout, "/* XPM */\n");
+    fprintf(stdout, "static char * data[] = {\n");
+    fprintf(stdout,
+            "\"%d %d 3 1\",\n",
+            valid_widths[found_width],
+            found_height);
+    fprintf(stdout, "\"0\tc #000000\",\n");
+    fprintf(stdout, "\"1\tc #ffffff\",\n");
+    fprintf(stdout, "\"2\tc #ff00ff\"");
+
+    xpm_line = malloc(valid_widths[found_width] + 1);
+
+    for (a = 0; a < ret.st_size; a++) {
+        if (a % valid_widths[found_width] == 0) {
+            if (a != 0) {
+                fprintf(stdout, ",\n");
+                fprintf(stdout, "\"%s\"", xpm_line);
+            }
+
+            memset(xpm_line, 0, valid_widths[found_width] + 1);
+        }
+
+        xpm_line[a % valid_widths[found_width]] = ((char *)filemap)[a];
+    }
+
+    if (*xpm_line != 0) {
+        for (i = strlen(xpm_line); i < valid_widths[found_width]; i++) {
+            xpm_line[i] = '2';
+        }
+
+        fprintf(stdout, ",\n\"%s\"};\n", xpm_line);
+    }
+
+    munmap(filemap, ret.st_size);
+
+    return 0;
+}

bindump.c

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+/*
+ * This file was originally written by Gergely Polonkai, and is
+ * licensed inder the DBAD:
+ *
+ * Do whatever you like with the original work, just don't be a dick.
+ *
+ * Being a dick includes - but is not limited to - the following
+ * instances:
+
+ *   1a. Outright copyright infringement - Don't just copy this and
+ *       change the name.
+ *   1b. Selling the unmodified original with no work done
+ *       what-so-ever, that's REALLY being a dick.
+ *   1c. Modifying the original work to contain hidden harmful
+ *       content. That would make you a PROPER dick.
+ *
+ * If you become rich through modifications, related works/services,
+ * or supporting the original work, share the love. Only a dick would
+ * make loads off this work and not buy the original work's creator(s)
+ * a pint.
+ *
+ * Code is provided with no warranty. Using somebody else's code and
+ * bitching when it goes wrong makes you a DONKEY dick. Fix the
+ * problem yourself. A non-dick would submit the fix back.
+ */
+
+#include <stdio.h>
+
+int
+main(int argc, char **argv)
+{
+    FILE *file;
+    int c;
+
+    if ((file = fopen(argv[1], "r")) == NULL) {
+        fprintf(stderr, "Unable to open file!\n");
+
+        return 1;
+    }
+
+    while ((c = fgetc(file)) != EOF) {
+        int i;
+
+        // For each byte in a file, print the byte as a binary string
+        // (a bunch of '0' and '1' characters
+        for (i = 7; i>= 0; i--) {
+            printf(((c & (2 ^i)) != 0) ? "0" : "1");
+        }
+    }
+
+    return 0;
+}

i-love-you.c

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+#include <stdio.h>
+
+int
+main(int argc, char **argv)
+{
+    printf("I love you!\n");
+
+    return 0;
+}

programmer.c

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+#include <stdio.h>
+
+int
+main(int argc, char **argv)
+{
+    printf("I'm a C programmer on GNU/Linux.\n");
+
+    return 0;
+}