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Diffstat (limited to 'usr.sbin/config.new/util.c')
| -rw-r--r-- | usr.sbin/config.new/util.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/usr.sbin/config.new/util.c b/usr.sbin/config.new/util.c new file mode 100644 index 0000000..6ef37db --- /dev/null +++ b/usr.sbin/config.new/util.c @@ -0,0 +1,262 @@ +/* + * 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. + * + * @(#)util.c 8.1 (Berkeley) 6/6/93 + */ + +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#if __STDC__ +#include <stdarg.h> +#else +#include <varargs.h> +#endif +#include "config.h" + +static void nomem __P((void)); +static void vxerror __P((const char *, int, const char *, va_list)); + +/* + * Malloc, with abort on error. + */ +void * +emalloc(size) + size_t size; +{ + void *p; + + if ((p = malloc(size)) == NULL) + nomem(); + return (p); +} + +/* + * Realloc, with abort on error. + */ +void * +erealloc(p, size) + void *p; + size_t size; +{ + + if ((p = realloc(p, size)) == NULL) + nomem(); + return (p); +} + +static void +nomem() +{ + + (void)fprintf(stderr, "config: out of memory\n"); + exit(1); +} + +/* + * Prepend the compilation directory to a file name. + */ +char * +path(file) + const char *file; +{ + register char *cp; +#define CDIR "../../compile/" + + if (file == NULL) { + cp = emalloc(sizeof(CDIR) + strlen(confdirbase)); + (void)sprintf(cp, "%s%s", CDIR, confdirbase); + } else { + cp = emalloc(sizeof(CDIR) + strlen(confdirbase) + 1 + + strlen(file)); + (void)sprintf(cp, "%s%s/%s", CDIR, confdirbase, file); + } + return (cp); +} + +static struct nvlist *nvhead; + +struct nvlist * +newnv(name, str, ptr, i) + const char *name, *str; + void *ptr; + int i; +{ + register struct nvlist *nv; + + if ((nv = nvhead) == NULL) + nv = emalloc(sizeof(*nv)); + else + nvhead = nv->nv_next; + nv->nv_next = NULL; + nv->nv_name = name; + if (ptr == NULL) + nv->nv_str = str; + else { + if (str != NULL) + panic("newnv"); + nv->nv_ptr = ptr; + } + nv->nv_int = i; + return (nv); +} + +/* + * Free an nvlist structure (just one). + */ +void +nvfree(nv) + register struct nvlist *nv; +{ + + nv->nv_next = nvhead; + nvhead = nv; +} + +/* + * Free an nvlist (the whole list). + */ +void +nvfreel(nv) + register struct nvlist *nv; +{ + register struct nvlist *next; + + for (; nv != NULL; nv = next) { + next = nv->nv_next; + nv->nv_next = nvhead; + nvhead = nv; + } +} + +/* + * External (config file) error. Complain, using current file + * and line number. + */ +void +#if __STDC__ +error(const char *fmt, ...) +#else +error(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + va_list ap; + extern const char *yyfile; + +#if __STDC__ + va_start(ap, fmt); +#else + va_start(ap); +#endif + vxerror(yyfile, currentline(), fmt, ap); + va_end(ap); +} + +/* + * Delayed config file error (i.e., something was wrong but we could not + * find out about it until later). + */ +void +#if __STDC__ +xerror(const char *file, int line, const char *fmt, ...) +#else +xerror(file, line, fmt, va_alist) + const char *file; + int line; + const char *fmt; + va_dcl +#endif +{ + va_list ap; + +#if __STDC__ + va_start(ap, fmt); +#else + va_start(ap); +#endif + vxerror(file, line, fmt, ap); + va_end(ap); +} + +/* + * Internal form of error() and xerror(). + */ +static void +vxerror(file, line, fmt, ap) + const char *file; + int line; + const char *fmt; + va_list ap; +{ + + (void)fprintf(stderr, "%s:%d: ", file, line); + (void)vfprintf(stderr, fmt, ap); + (void)putc('\n', stderr); + errors++; +} + +/* + * Internal error, abort. + */ +__dead void +#if __STDC__ +panic(const char *fmt, ...) +#else +panic(fmt, va_alist) + const char *fmt; + va_dcl +#endif +{ + va_list ap; + +#if __STDC__ + va_start(ap, fmt); +#else + va_start(ap); +#endif + (void)fprintf(stderr, "config: panic: "); + (void)vfprintf(stderr, fmt, ap); + (void)putc('\n', stderr); + va_end(ap); + exit(2); +} |
