[hackers] [farbfeld] farbfeld.5: exit() -> return || FRIGN

[git]

commit b669c8642e21850ea561931633ae06e6ba5bf354
Author:     FRIGN <d...@frign.de>
AuthorDate: Tue Jan 5 11:16:11 2016 +0100
Commit:     FRIGN <d...@frign.de>
CommitDate: Tue Jan 5 11:16:43 2016 +0100

    farbfeld.5: exit() -> return
    
    Now that we're in main, we don't need to exit().
    Also, we should return 0 at the end, thanks Hiltjo!

diff --git a/farbfeld.5 b/farbfeld.5
index 2ed3354..62e327a 100644
--- a/farbfeld.5
+++ b/farbfeld.5
@@ -64,23 +64,23 @@ main(int argc, char *argv[])
 
        if (argc > 1) {
                fprintf(stderr, "usage: %s\\n", argv[0]);
-               exit(1);
+               return 1;
        }
 
        if (fread(hdr, 1, sizeof(hdr), stdin) != sizeof(hdr)) {
                fprintf(stderr, "incomplete header\\n");
-               exit(1);
+               return 1;
        }
        if (memcmp("farbfeld", hdr, strlen("farbfeld"))) {
                fprintf(stderr, "invalid magic\\n");
-               exit(1);
+               return 1;
        }
        width = ntohl(*((uint32_t *)(hdr + 8)));
        height = ntohl(*((uint32_t *)(hdr + 12)));
 
        if (fwrite(hdr, 1, sizeof(hdr), stdout) != sizeof(hdr)) {
                fprintf(stderr, "write error\\n");
-               exit(1);
+               return 1;
        }
 
        for (i = 0; i < height; i++) {
@@ -88,7 +88,7 @@ main(int argc, char *argv[])
                        if (fread(rgba, sizeof(uint16_t), 4,
                                  stdin) != 4) {
                                fprintf(stderr, "unexpected EOF\\n");
-                               exit(1);
+                               return 1;
                        }
                        for (k = 0; k < 4; k++) {
                                rgba[k] = ntohs(rgba[k]);
@@ -105,10 +105,12 @@ main(int argc, char *argv[])
                        if (fwrite(rgba, sizeof(uint16_t), 4,
                                   stdout) != 4) {
                                fprintf(stderr, "write error\\n");
-                               exit(1);
+                               return 1;
                        }
                }
        }
+
+       return 0;
 }
 .Ed
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