diff options
Diffstat (limited to 'usr.sbin/config.new/mkheaders.c')
| -rw-r--r-- | usr.sbin/config.new/mkheaders.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/usr.sbin/config.new/mkheaders.c b/usr.sbin/config.new/mkheaders.c new file mode 100644 index 0000000..f627243 --- /dev/null +++ b/usr.sbin/config.new/mkheaders.c @@ -0,0 +1,148 @@ +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratories. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * @(#)mkheaders.c 8.1 (Berkeley) 6/6/93 + */ + +#include <sys/param.h> +#include <ctype.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "config.h" + +static int emitcnt __P((struct nvlist *)); +static int err __P((const char *, char *, FILE *)); +static char *cntname __P((const char *)); + +/* + * Make headers containing counts, as needed. + */ +int +mkheaders() +{ + register struct files *fi; + + for (fi = allfiles; fi != NULL; fi = fi->fi_next) { + if (fi->fi_flags & FI_HIDDEN) + continue; + if (fi->fi_flags & (FI_NEEDSCOUNT | FI_NEEDSFLAG) && + emitcnt(fi->fi_opt)) + return (1); + } + return (0); +} + +static int +emitcnt(head) + register struct nvlist *head; +{ + register struct nvlist *nv; + register FILE *fp; + register char *fname; + int cnt; + char nam[100]; + char buf[BUFSIZ]; + + (void)sprintf(buf, "%s.h", head->nv_name); + fname = path(buf); + if ((fp = fopen(fname, "r")) == NULL) + goto writeit; + nv = head; + while (fgets(buf, sizeof(buf), fp) != NULL) { + if (nv == NULL) + goto writeit; + if (sscanf(buf, "#define %s %d", nam, &cnt) != 2 || + strcmp(nam, cntname(nv->nv_name)) != 0 || + cnt != nv->nv_int) + goto writeit; + nv = nv->nv_next; + } + if (ferror(fp)) + return (err("read", fname, fp)); + (void)fclose(fp); + if (nv == NULL) + return (0); +writeit: + if ((fp = fopen(fname, "w")) == NULL) { + (void)fprintf(stderr, "config: cannot write %s: %s\n", + fname, strerror(errno)); + return (1); + } + for (nv = head; nv != NULL; nv = nv->nv_next) + if (fprintf(fp, "#define\t%s\t%d\n", + cntname(nv->nv_name), nv->nv_int) < 0) + return (err("writ", fname, fp)); + if (fclose(fp)) + return (err("writ", fname, NULL)); + return (0); +} + +static int +err(what, fname, fp) + const char *what; + char *fname; + FILE *fp; +{ + + (void)fprintf(stderr, "config: error %sing %s: %s\n", + what, fname, strerror(errno)); + if (fp) + (void)fclose(fp); + free(fname); + return (1); +} + +static char * +cntname(src) + register const char *src; +{ + register char *dst, c; + static char buf[100]; + + dst = buf; + *dst++ = 'N'; + while ((c = *src++) != 0) + *dst++ = islower(c) ? toupper(c) : c; + *dst = 0; + return (buf); +} |
