diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/mkflags.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/scripts/mkflags.c b/scripts/mkflags.c index a8e5216e..1cad5bf4 100644 --- a/scripts/mkflags.c +++ b/scripts/mkflags.c @@ -72,6 +72,11 @@ struct flag *digest(char *string) int main(int argc, char *argv[]) { char command[256], flags[1023], allflags[1024]; + char *out, *outbuf = malloc(1024*1024); + + // Yes, the output buffer is 1 megabyte with no bounds checking. + // See "intentionally crappy", above. + if (!(out = outbuf)) return 1; for (;;) { struct flag *flist, *aflist, *offlist; @@ -81,10 +86,10 @@ int main(int argc, char *argv[]) command, flags, allflags)) break; printf("// %s %s %s\n", command, flags, allflags); + flist = digest(flags); offlist = aflist = digest(allflags); - printf("#ifdef CLEANUP_%s\n#undef CLEANUP_%s\n#undef FOR_%s\n", command, command, command); @@ -99,32 +104,43 @@ int main(int argc, char *argv[]) } printf("#endif\n\n"); - printf("#ifdef FOR_%s\n#ifndef TT\n#define TT this.%s\n#endif\n", - command, command); + sprintf(out, "#ifdef FOR_%s\n#ifndef TT\n#define TT this.%s\n#endif\n", + command, command); + out += strlen(out); while (aflist) { if (aflist->lopt) { if (flist && flist->lopt && !strcmp(flist->lopt->command, aflist->lopt->command)) { - printf("#define FLAG_%s (1<<%d)\n", flist->lopt->command, bit); + sprintf(out, "#define FLAG_%s (1<<%d)\n", flist->lopt->command, bit); flist->lopt = flist->lopt->next; - } else printf("#define FLAG_%s 0\n", aflist->lopt->command); + } else sprintf(out, "#define FLAG_%s 0\n", aflist->lopt->command); aflist->lopt = aflist->lopt->next; if (!aflist->command) aflist = aflist->next; } else if (aflist->command) { if (flist && (!aflist->command || *aflist->command == *flist->command)) { if (aflist->command) - printf("#define FLAG_%c (1<<%d)\n", *aflist->command, bit); + sprintf(out, "#define FLAG_%c (1<<%d)\n", *aflist->command, bit); bit++; flist = flist->next; - } else printf("#define FLAG_%c 0\n", *aflist->command); + } else sprintf(out, "#define FLAG_%c 0\n", *aflist->command); aflist = aflist->next; } + out += strlen(out); } - printf("#endif\n\n"); + sprintf(out, "#endif\n\n"); + out += strlen(out); } - return fflush(0) && ferror(stdout); + if (fflush(0) && ferror(stdout)) return 1; + + out = outbuf; + while (*out) { + int i = write(1, outbuf, strlen(outbuf)); + + if (i<0) return 1; + out += i; + } } |