mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
520 lines
10 KiB
Plaintext
520 lines
10 KiB
Plaintext
%{
|
|
/*
|
|
* Copyright (c) 1983, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)gram.y 8.1 (Berkeley) 6/9/93";
|
|
#endif /* not lint */
|
|
|
|
#include "defs.h"
|
|
#include <sys/types.h>
|
|
#include <regex.h>
|
|
#include <limits.h>
|
|
|
|
struct cmd *cmds = NULL;
|
|
struct cmd *last_cmd;
|
|
struct namelist *last_n;
|
|
struct subcmd *last_sc;
|
|
|
|
static char *makestr __P((char *));
|
|
|
|
%}
|
|
|
|
%term EQUAL 1
|
|
%term LP 2
|
|
%term RP 3
|
|
%term SM 4
|
|
%term ARROW 5
|
|
%term COLON 6
|
|
%term DCOLON 7
|
|
%term NAME 8
|
|
%term STRING 9
|
|
%term INSTALL 10
|
|
%term NOTIFY 11
|
|
%term EXCEPT 12
|
|
%term PATTERN 13
|
|
%term SPECIAL 14
|
|
%term OPTION 15
|
|
|
|
%union {
|
|
int intval;
|
|
char *string;
|
|
struct subcmd *subcmd;
|
|
struct namelist *namel;
|
|
}
|
|
|
|
%type <intval> OPTION, options
|
|
%type <string> NAME, STRING
|
|
%type <subcmd> INSTALL, NOTIFY, EXCEPT, PATTERN, SPECIAL, cmdlist, cmd
|
|
%type <namel> namelist, names, opt_namelist
|
|
|
|
%%
|
|
|
|
file: /* VOID */
|
|
| file command
|
|
;
|
|
|
|
command: NAME EQUAL namelist = {
|
|
(void) lookup($1, INSERT, $3);
|
|
}
|
|
| namelist ARROW namelist cmdlist = {
|
|
insert(NULL, $1, $3, $4);
|
|
}
|
|
| NAME COLON namelist ARROW namelist cmdlist = {
|
|
insert($1, $3, $5, $6);
|
|
}
|
|
| namelist DCOLON NAME cmdlist = {
|
|
append(NULL, $1, $3, $4);
|
|
}
|
|
| NAME COLON namelist DCOLON NAME cmdlist = {
|
|
append($1, $3, $5, $6);
|
|
}
|
|
| error
|
|
;
|
|
|
|
namelist: NAME = {
|
|
$$ = makenl($1);
|
|
}
|
|
| LP names RP = {
|
|
$$ = $2;
|
|
}
|
|
;
|
|
|
|
names: /* VOID */ {
|
|
$$ = last_n = NULL;
|
|
}
|
|
| names NAME = {
|
|
if (last_n == NULL)
|
|
$$ = last_n = makenl($2);
|
|
else {
|
|
last_n->n_next = makenl($2);
|
|
last_n = last_n->n_next;
|
|
$$ = $1;
|
|
}
|
|
}
|
|
;
|
|
|
|
cmdlist: /* VOID */ {
|
|
$$ = last_sc = NULL;
|
|
}
|
|
| cmdlist cmd = {
|
|
if (last_sc == NULL)
|
|
$$ = last_sc = $2;
|
|
else {
|
|
last_sc->sc_next = $2;
|
|
last_sc = $2;
|
|
$$ = $1;
|
|
}
|
|
}
|
|
;
|
|
|
|
cmd: INSTALL options opt_namelist SM = {
|
|
register struct namelist *nl;
|
|
|
|
$1->sc_options = $2 | options;
|
|
if ($3 != NULL) {
|
|
nl = expand($3, E_VARS);
|
|
if (nl) {
|
|
if (nl->n_next != NULL)
|
|
yyerror("only one name allowed\n");
|
|
$1->sc_name = nl->n_name;
|
|
free(nl);
|
|
} else
|
|
$1->sc_name = NULL;
|
|
}
|
|
$$ = $1;
|
|
}
|
|
| NOTIFY namelist SM = {
|
|
if ($2 != NULL)
|
|
$1->sc_args = expand($2, E_VARS);
|
|
$$ = $1;
|
|
}
|
|
| EXCEPT namelist SM = {
|
|
if ($2 != NULL)
|
|
$1->sc_args = expand($2, E_ALL);
|
|
$$ = $1;
|
|
}
|
|
| PATTERN namelist SM = {
|
|
struct namelist *nl;
|
|
regex_t rx;
|
|
int val;
|
|
char errbuf[_POSIX2_LINE_MAX];
|
|
|
|
for (nl = $2; nl != NULL; nl = nl->n_next) {
|
|
if (val = regcomp(&rx, nl->n_name,
|
|
REG_EXTENDED)) {
|
|
regerror(val, &rx, errbuf,
|
|
sizeof errbuf);
|
|
yyerror(errbuf);
|
|
}
|
|
regfree(&rx);
|
|
}
|
|
$1->sc_args = expand($2, E_VARS);
|
|
$$ = $1;
|
|
}
|
|
| SPECIAL opt_namelist STRING SM = {
|
|
if ($2 != NULL)
|
|
$1->sc_args = expand($2, E_ALL);
|
|
$1->sc_name = $3;
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
options: /* VOID */ = {
|
|
$$ = 0;
|
|
}
|
|
| options OPTION = {
|
|
$$ |= $2;
|
|
}
|
|
;
|
|
|
|
opt_namelist: /* VOID */ = {
|
|
$$ = NULL;
|
|
}
|
|
| namelist = {
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
%%
|
|
|
|
int yylineno = 1;
|
|
extern FILE *fin;
|
|
|
|
int
|
|
yylex()
|
|
{
|
|
static char yytext[INMAX];
|
|
register int c;
|
|
register char *cp1, *cp2;
|
|
static char quotechars[] = "[]{}*?$";
|
|
|
|
again:
|
|
switch (c = getc(fin)) {
|
|
case EOF: /* end of file */
|
|
return(0);
|
|
|
|
case '#': /* start of comment */
|
|
while ((c = getc(fin)) != EOF && c != '\n')
|
|
;
|
|
if (c == EOF)
|
|
return(0);
|
|
case '\n':
|
|
yylineno++;
|
|
case ' ':
|
|
case '\t': /* skip blanks */
|
|
goto again;
|
|
|
|
case '=': /* EQUAL */
|
|
return(EQUAL);
|
|
|
|
case '(': /* LP */
|
|
return(LP);
|
|
|
|
case ')': /* RP */
|
|
return(RP);
|
|
|
|
case ';': /* SM */
|
|
return(SM);
|
|
|
|
case '-': /* -> */
|
|
if ((c = getc(fin)) == '>')
|
|
return(ARROW);
|
|
ungetc(c, fin);
|
|
c = '-';
|
|
break;
|
|
|
|
case '"': /* STRING */
|
|
cp1 = yytext;
|
|
cp2 = &yytext[INMAX - 1];
|
|
for (;;) {
|
|
if (cp1 >= cp2) {
|
|
yyerror("command string too long\n");
|
|
break;
|
|
}
|
|
c = getc(fin);
|
|
if (c == EOF || c == '"')
|
|
break;
|
|
if (c == '\\') {
|
|
if ((c = getc(fin)) == EOF) {
|
|
*cp1++ = '\\';
|
|
break;
|
|
}
|
|
}
|
|
if (c == '\n') {
|
|
yylineno++;
|
|
c = ' '; /* can't send '\n' */
|
|
}
|
|
*cp1++ = c;
|
|
}
|
|
if (c != '"')
|
|
yyerror("missing closing '\"'\n");
|
|
*cp1 = '\0';
|
|
yylval.string = makestr(yytext);
|
|
return(STRING);
|
|
|
|
case ':': /* : or :: */
|
|
if ((c = getc(fin)) == ':')
|
|
return(DCOLON);
|
|
ungetc(c, fin);
|
|
return(COLON);
|
|
}
|
|
cp1 = yytext;
|
|
cp2 = &yytext[INMAX - 1];
|
|
for (;;) {
|
|
if (cp1 >= cp2) {
|
|
yyerror("input line too long\n");
|
|
break;
|
|
}
|
|
if (c == '\\') {
|
|
if ((c = getc(fin)) != EOF) {
|
|
if (any(c, quotechars))
|
|
c |= QUOTE;
|
|
} else {
|
|
*cp1++ = '\\';
|
|
break;
|
|
}
|
|
}
|
|
*cp1++ = c;
|
|
c = getc(fin);
|
|
if (c == EOF || any(c, " \"'\t()=;:\n")) {
|
|
ungetc(c, fin);
|
|
break;
|
|
}
|
|
}
|
|
*cp1 = '\0';
|
|
if (yytext[0] == '-' && yytext[2] == '\0') {
|
|
switch (yytext[1]) {
|
|
case 'b':
|
|
yylval.intval = COMPARE;
|
|
return(OPTION);
|
|
|
|
case 'R':
|
|
yylval.intval = REMOVE;
|
|
return(OPTION);
|
|
|
|
case 'v':
|
|
yylval.intval = VERIFY;
|
|
return(OPTION);
|
|
|
|
case 'w':
|
|
yylval.intval = WHOLE;
|
|
return(OPTION);
|
|
|
|
case 'y':
|
|
yylval.intval = YOUNGER;
|
|
return(OPTION);
|
|
|
|
case 'h':
|
|
yylval.intval = FOLLOW;
|
|
return(OPTION);
|
|
|
|
case 'i':
|
|
yylval.intval = IGNLNKS;
|
|
return(OPTION);
|
|
}
|
|
}
|
|
if (!strcmp(yytext, "install"))
|
|
c = INSTALL;
|
|
else if (!strcmp(yytext, "notify"))
|
|
c = NOTIFY;
|
|
else if (!strcmp(yytext, "except"))
|
|
c = EXCEPT;
|
|
else if (!strcmp(yytext, "except_pat"))
|
|
c = PATTERN;
|
|
else if (!strcmp(yytext, "special"))
|
|
c = SPECIAL;
|
|
else {
|
|
yylval.string = makestr(yytext);
|
|
return(NAME);
|
|
}
|
|
yylval.subcmd = makesubcmd(c);
|
|
return(c);
|
|
}
|
|
|
|
int
|
|
any(c, str)
|
|
register int c;
|
|
register char *str;
|
|
{
|
|
while (*str)
|
|
if (c == *str++)
|
|
return(1);
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* Insert or append ARROW command to list of hosts to be updated.
|
|
*/
|
|
void
|
|
insert(label, files, hosts, subcmds)
|
|
char *label;
|
|
struct namelist *files, *hosts;
|
|
struct subcmd *subcmds;
|
|
{
|
|
register struct cmd *c, *prev, *nc;
|
|
register struct namelist *h;
|
|
|
|
files = expand(files, E_VARS|E_SHELL);
|
|
hosts = expand(hosts, E_ALL);
|
|
for (h = hosts; h != NULL; free(h), h = h->n_next) {
|
|
/*
|
|
* Search command list for an update to the same host.
|
|
*/
|
|
for (prev = NULL, c = cmds; c!=NULL; prev = c, c = c->c_next) {
|
|
if (strcmp(c->c_name, h->n_name) == 0) {
|
|
do {
|
|
prev = c;
|
|
c = c->c_next;
|
|
} while (c != NULL &&
|
|
strcmp(c->c_name, h->n_name) == 0);
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
* Insert new command to update host.
|
|
*/
|
|
nc = ALLOC(cmd);
|
|
if (nc == NULL)
|
|
fatal("ran out of memory\n");
|
|
nc->c_type = ARROW;
|
|
nc->c_name = h->n_name;
|
|
nc->c_label = label;
|
|
nc->c_files = files;
|
|
nc->c_cmds = subcmds;
|
|
nc->c_next = c;
|
|
if (prev == NULL)
|
|
cmds = nc;
|
|
else
|
|
prev->c_next = nc;
|
|
/* update last_cmd if appending nc to cmds */
|
|
if (c == NULL)
|
|
last_cmd = nc;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Append DCOLON command to the end of the command list since these are always
|
|
* executed in the order they appear in the distfile.
|
|
*/
|
|
void
|
|
append(label, files, stamp, subcmds)
|
|
char *label;
|
|
struct namelist *files;
|
|
char *stamp;
|
|
struct subcmd *subcmds;
|
|
{
|
|
register struct cmd *c;
|
|
|
|
c = ALLOC(cmd);
|
|
if (c == NULL)
|
|
fatal("ran out of memory\n");
|
|
c->c_type = DCOLON;
|
|
c->c_name = stamp;
|
|
c->c_label = label;
|
|
c->c_files = expand(files, E_ALL);
|
|
c->c_cmds = subcmds;
|
|
c->c_next = NULL;
|
|
if (cmds == NULL)
|
|
cmds = last_cmd = c;
|
|
else {
|
|
last_cmd->c_next = c;
|
|
last_cmd = c;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Error printing routine in parser.
|
|
*/
|
|
void
|
|
yyerror(s)
|
|
char *s;
|
|
{
|
|
++nerrs;
|
|
fflush(stdout);
|
|
fprintf(stderr, "rdist: line %d: %s\n", yylineno, s);
|
|
}
|
|
|
|
/*
|
|
* Return a copy of the string.
|
|
*/
|
|
static char *
|
|
makestr(str)
|
|
char *str;
|
|
{
|
|
register char *cp, *s;
|
|
|
|
str = cp = malloc(strlen(s = str) + 1);
|
|
if (cp == NULL)
|
|
fatal("ran out of memory\n");
|
|
while (*cp++ = *s++)
|
|
;
|
|
return(str);
|
|
}
|
|
|
|
/*
|
|
* Allocate a namelist structure.
|
|
*/
|
|
struct namelist *
|
|
makenl(name)
|
|
char *name;
|
|
{
|
|
register struct namelist *nl;
|
|
|
|
nl = ALLOC(namelist);
|
|
if (nl == NULL)
|
|
fatal("ran out of memory\n");
|
|
nl->n_name = name;
|
|
nl->n_next = NULL;
|
|
return(nl);
|
|
}
|
|
|
|
/*
|
|
* Make a sub command for lists of variables, commands, etc.
|
|
*/
|
|
struct subcmd *
|
|
makesubcmd(type)
|
|
int type;
|
|
{
|
|
register struct subcmd *sc;
|
|
|
|
sc = ALLOC(subcmd);
|
|
if (sc == NULL)
|
|
fatal("ran out of memory\n");
|
|
sc->sc_type = type;
|
|
sc->sc_args = NULL;
|
|
sc->sc_next = NULL;
|
|
sc->sc_name = NULL;
|
|
return(sc);
|
|
}
|