149 lines
4.3 KiB
C
149 lines
4.3 KiB
C
/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratories.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mkheaders.c 8.1 (Berkeley) 6/6/93
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*/
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#include <sys/param.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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static int emitcnt __P((struct nvlist *));
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static int err __P((const char *, char *, FILE *));
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static char *cntname __P((const char *));
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/*
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* Make headers containing counts, as needed.
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*/
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int
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mkheaders()
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{
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register struct files *fi;
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for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
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if (fi->fi_flags & FI_HIDDEN)
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continue;
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if (fi->fi_flags & (FI_NEEDSCOUNT | FI_NEEDSFLAG) &&
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emitcnt(fi->fi_opt))
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return (1);
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}
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return (0);
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}
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static int
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emitcnt(head)
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register struct nvlist *head;
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{
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register struct nvlist *nv;
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register FILE *fp;
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register char *fname;
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int cnt;
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char nam[100];
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char buf[BUFSIZ];
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(void)sprintf(buf, "%s.h", head->nv_name);
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fname = path(buf);
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if ((fp = fopen(fname, "r")) == NULL)
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goto writeit;
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nv = head;
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while (fgets(buf, sizeof(buf), fp) != NULL) {
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if (nv == NULL)
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goto writeit;
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if (sscanf(buf, "#define %s %d", nam, &cnt) != 2 ||
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strcmp(nam, cntname(nv->nv_name)) != 0 ||
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cnt != nv->nv_int)
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goto writeit;
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nv = nv->nv_next;
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}
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if (ferror(fp))
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return (err("read", fname, fp));
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(void)fclose(fp);
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if (nv == NULL)
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return (0);
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writeit:
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if ((fp = fopen(fname, "w")) == NULL) {
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(void)fprintf(stderr, "config: cannot write %s: %s\n",
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fname, strerror(errno));
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return (1);
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}
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for (nv = head; nv != NULL; nv = nv->nv_next)
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if (fprintf(fp, "#define\t%s\t%d\n",
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cntname(nv->nv_name), nv->nv_int) < 0)
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return (err("writ", fname, fp));
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if (fclose(fp))
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return (err("writ", fname, NULL));
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return (0);
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}
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static int
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err(what, fname, fp)
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const char *what;
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char *fname;
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FILE *fp;
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{
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(void)fprintf(stderr, "config: error %sing %s: %s\n",
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what, fname, strerror(errno));
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if (fp)
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(void)fclose(fp);
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free(fname);
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return (1);
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}
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static char *
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cntname(src)
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register const char *src;
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{
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register char *dst, c;
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static char buf[100];
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dst = buf;
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*dst++ = 'N';
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while ((c = *src++) != 0)
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*dst++ = islower(c) ? toupper(c) : c;
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*dst = 0;
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return (buf);
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}
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