static string_ty *
sa_close(void)
{
string_ty *s;
s = str_n_from_c(sa_data, sa_data_length);
sa_data_length = 0;
return s;
}
string_ty *
sa_close(stracc *sap)
{
string_ty *val;
trace(("sa_close()\n{\n"));
assert(sap->sa_inuse);
val = str_n_from_c(sap->sa_buf, sap->sa_len);
sap->sa_inuse = 0;
trace(("return %08lX;\n", val));
trace(("}\n"));
return val;
}
static string_ty *
ends_with(string_ty *s1, const char *s2)
{
size_t len2;
len2 = strlen(s2);
if
(
s1->str_length > len2
&&
0 == memcmp(s1->str_text + s1->str_length - len2, s2, len2)
)
return str_n_from_c(s1->str_text, s1->str_length - len2);
return 0;
}
string_ty *
str_field(string_ty *s, int sep, int fldnum)
{
char *cp;
char *ep;
cp = s->str_text;
while (fldnum > 0)
{
ep = strchr(cp, sep);
if (!ep)
return 0;
cp = ep + 1;
--fldnum;
}
ep = strchr(cp, sep);
if (ep)
return str_n_from_c(cp, ep - cp);
return str_from_c(cp);
}
int
main(int argc, char **argv)
{
int retval;
/*
* Some versions of cron(8) and at(1) set SIGCHLD to SIG_IGN.
* This is kinda dumb, because it breaks assumprions made in
* libc (like pclose, for instance). It also blows away most
* of Cook's process handling. We explicitly set the SIGCHLD
* signal handling to SIG_DFL to make sure this signal does what
* we expect no matter how we are invoked.
*/
#ifdef SIGCHLD
signal(SIGCHLD, SIG_DFL);
#else
signal(SIGCLD, SIG_DFL);
#endif
/*
* initialize things
* (order is critical here)
*/
progname_set(argv[0]);
str_initialize();
id_initialize();
lex_initialize();
/*
* parse the COOK environment variable
*/
arglex_init_from_env(argv[0], argtab);
argparse(OPTION_LEVEL_ENVIRONMENT);
/*
* parse the command line
*/
arglex_init(argc, argv, argtab);
argparse(OPTION_LEVEL_COMMAND_LINE);
option_tidy_up();
log_open();
/*
* turn on progress stars if they asked for them
*/
if (option_test(OPTION_STAR))
star_enable();
/*
* If we were asked to update the fingerprints, do it here.
* We don't actually ant to read in the cookbook.
*/
if (option.fingerprint_update)
{
fp_tweak();
quit(0);
}
/*
* read in the cook book
*
* If there are #include-cooked directives,
* we may need to do it more than once.
*/
if (!option.o_book)
fatal_intl(0, i18n("no book found"));
for (;;)
{
int status;
size_t j;
builtin_initialize();
/*
* instanciate the command line variable assignments
*/
for (j = 0; j < option.o_vardef.nstrings; ++j)
{
char *s;
char *cp;
string_ty *name;
string_ty *value;
string_list_ty wl;
opcode_context_ty *ocp;
s = option.o_vardef.string[j]->str_text;
cp = strchr(s, '=');
assert(cp);
if (!cp)
continue;
name = str_n_from_c(s, cp - s);
value = str_from_c(cp + 1);
str2wl(&wl, value, (char *)0, 0);
str_free(value);
ocp = opcode_context_new(0, 0);
opcode_context_id_assign(ocp, name, id_variable_new(&wl), 0);
opcode_context_delete(ocp);
str_free(name);
string_list_destructor(&wl);
}
set_command_line_goals();
parse(option.o_book);
status = cook_auto_required();
if (status < 0)
quit(1);
if (!status)
break;
id_reset();
cook_reset();
}
/*
* work out what to cook.
* If no targets have been given, use the first explicit recipe.
*/
set_command_line_goals();
if (!option.o_target.nstrings)
cook_find_default(&option.o_target);
assert(option.o_target.nstrings);
/*
* cook the target
*/
if (option.pairs)
retval = cook_pairs(&option.o_target);
else if (option.script)
retval = cook_script(&option.o_target);
else if (option.web)
retval = cook_web(&option.o_target);
else
retval = cook(&option.o_target);
#ifdef DEBUG
fflush_slowly_report();
#endif
quit(retval);
/*NOTREACHED*/
return 0;
}
string_ty *
flatten(string_ty *filename)
{
string_list_ty sl;
static string_ty *root;
static string_ty *dot;
static string_ty *dotdot;
size_t pos;
size_t start;
size_t j;
string_ty *s;
/*
* Create some things we are going to need.
*/
if (!root)
{
root = str_from_c("");
dot = str_from_c(".");
dotdot = str_from_c("..");
}
/*
* leading slash is special
*/
pos = 0;
string_list_constructor(&sl);
if (filename->str_text[0] == '/')
{
++pos;
string_list_append(&sl, root);
}
/*
* Break it into slash-separaed words.
*/
for (;;)
{
while (pos < filename->str_length && filename->str_text[pos] == '/')
++pos;
if (pos >= filename->str_length)
break;
start = pos;
for (;;)
{
++pos;
if (pos >= filename->str_length || filename->str_text[pos] == '/')
break;
}
/*
* remember each word (except ".")
*/
s = str_n_from_c(filename->str_text + start, pos - start);
if (!str_equal(s, dot))
string_list_append(&sl, s);
str_free(s);
}
/*
* Try as hard as possible to chuck out redundant stuff.
*/
for (;;)
{
int changed = 0;
/*
* "/.." -> "/"
*/
if
(
sl.nstrings >= 2
&&
str_equal(sl.string[0], root)
&&
str_equal(sl.string[1], dotdot)
)
{
string_list_remove_nth(&sl, 1);
++changed;
}
/*
* "name/.." -> ""
*/
for (j = 0; j + 1 < sl.nstrings; ++j)
{
if (str_equal(sl.string[j], root))
continue;
if (str_equal(sl.string[j], dotdot))
continue;
if (!str_equal(sl.string[j + 1], dotdot))
continue;
string_list_remove_nth(&sl, j);
string_list_remove_nth(&sl, j);
++changed;
--j;
}
/*
* loop if anything changed,
* bail if we can't find more to do
*/
if (!changed)
break;
}
/*
* reassemble the "cleaned" path
*/
s = wl2str_respect_empty(&sl, 0, sl.nstrings, "/", 1);
string_list_destructor(&sl);
return s;
}
static int
reserved(string_ty *s)
{
typedef struct table_ty table_ty;
struct table_ty
{
char *name;
int token;
};
static table_ty table[] =
{
{ "override", OVERRIDE },
{ "include", INCLUDE2 },
{ "-include", INCLUDE3 },
{ ".include", INCLUDE },
{ "vpath", VPATH },
{ "VPATH", VPATH2 },
{ "ifdef", IF },
{ "ifndef", IF },
{ "ifeq", IF },
{ "ifneq", IF },
{ "else", ELSE },
{ "endif", ENDIF },
{ "endef", ENDDEF },
{ "define", DEFINE },
{ "export", EXPORT },
{ "unexport", UNEXPORT },
};
static symtab_ty *symtab;
int *data;
string_ty *name;
char *cp;
if (!symtab)
{
table_ty *tp;
symtab = symtab_alloc(SIZEOF(table));
for (tp = table; tp < ENDOF(table); ++tp)
{
name = str_from_c(tp->name);
symtab_assign(symtab, name, &tp->token);
str_free(name);
}
}
cp = strchr(s->str_text, '(');
if (cp)
{
name = str_n_from_c(s->str_text, cp - s->str_text);
data = symtab_query(symtab, name);
str_free(name);
}
else
data = symtab_query(symtab, s);
if (data)
return *data;
return 0;
}
static blob_list_ty *
ifeq(blob_list_ty *blp, string_list_ty *ref)
{
blob_ty *arg;
blob_ty *bp;
blob_list_ty *result;
string_ty *s;
string_ty *s2;
char *cp;
size_t j;
/*
* allocate the result list
*/
trace(("ifeq()\n{\n"));
result = blob_list_alloc();
/*
* make sure we were given enough arguments
*/
if (blp->length < 2)
{
arg = blp->list[0];
blob_list_append
(
result,
blob_alloc(str_from_c("0"), arg->file_name, arg->line_number)
);
trace(("}\n"));
return result;
}
/*
* turn the list of arguments into a single string
*/
arg = blp->list[1];
s = str_copy(blp->list[1]->text);
for (j = 2; j < blp->length; ++j)
{
s2 = str_format("%s %s", s->str_text, blp->list[j]->text->str_text);
str_free(s);
s = s2;
}
bp = blob_alloc(s, arg->file_name, arg->line_number);
/*
* rename the variables
* and reform to be a single string, again.
*/
variable_rename(bp, result, ref, VAREN_NO_QUOQUO);
blob_free(bp);
s = result->length ? str_copy(result->list[0]->text) : str_from_c("0");
for (j = 1; j < result->length; ++j)
{
s2 = str_format("%s %s", s->str_text, result->list[j]->text->str_text);
str_free(s);
s = s2;
}
blob_list_free(result);
/*
* construct the result
*/
result = blob_list_alloc();
switch (s->str_text[0])
{
case '(':
/*
* ifeq (xxx,yyy)
*/
if (s->str_length < 3)
goto useless;
cp = strchr(s->str_text, ',');
if (cp == 0 || s->str_text[s->str_length - 1] != ')')
goto useless;
blob_list_append
(
result,
blob_alloc(str_from_c("[in"), arg->file_name, arg->line_number)
);
s2 = str_n_from_c(s->str_text + 1, cp - s->str_text - 1);
if (s2->str_length == 0)
s2 = str_from_c("\"\"");
bp = blob_alloc(s2, arg->file_name, arg->line_number);
blob_list_append(result, bp);
s2 = str_n_from_c(cp + 1, s->str_text + s->str_length - cp - 2);
if (s2->str_length == 0)
s2 = str_from_c("\"\"");
bp = blob_alloc(s2, arg->file_name, arg->line_number);
blob_list_append(result, bp);
blob_list_append
(
result,
blob_alloc(str_from_c("]"), arg->file_name, arg->line_number)
);
break;
case '\'':
case '"':
/*
* ifeq "xxx" "yyy"
*/
if (s->str_length < 5)
goto useless;
cp = strchr(s->str_text + 1, s->str_text[0]);
if
(
!cp
||
cp[1] != ' '
||
cp[2] != s->str_text[0]
||
s->str_text[s->str_length - 1] != s->str_text[0]
)
goto useless;
blob_list_append
(
result,
blob_alloc(str_from_c("[in"), arg->file_name, arg->line_number)
);
s2 = str_n_from_c(s->str_text + 1, cp - s->str_text - 1);
if (s2->str_length == 0)
s2 = str_from_c("\"\"");
bp = blob_alloc(s2, arg->file_name, arg->line_number);
blob_list_append(result, bp);
s2 = str_n_from_c(cp + 3, s->str_text + s->str_length - cp - 4);
if (s2->str_length == 0)
s2 = str_from_c("\"\"");
bp = blob_alloc(s2, arg->file_name, arg->line_number);
blob_list_append(result, bp);
blob_list_append
(
result,
blob_alloc(str_from_c("]"), arg->file_name, arg->line_number)
);
break;
default:
/*
* We were given some useless thing, just rename the
* variables and copy it through.
*/
useless:
bp = blob_alloc(str_copy(s), arg->file_name, arg->line_number);
blob_list_append(result, bp);
break;
}
str_free(s);
trace(("}\n"));
return result;
}
string_ty *
str_from_c(const char *s)
{
return str_n_from_c(s, strlen(s));
}
static int
interpret(string_list_ty *result, const string_list_ty *arg,
const expr_position_ty *pp, const struct opcode_context_ty *ocp)
{
long start;
long length;
long end;
size_t j;
trace(("builtin::substr()\n{\n"));
(void)ocp;
if (arg->nstrings < 3)
{
sub_context_ty *scp;
scp = sub_context_new();
sub_var_set_string(scp, "Name", arg->string[0]);
error_with_position
(
pp,
scp,
i18n("$name: requires two or more arguments")
);
sub_context_delete(scp);
trace(("return -1;\n"));
trace(("}\n"));
return -1;
}
if (!number(arg->string[1]->str_text, &start))
{
sub_context_ty *scp;
scp = sub_context_new();
sub_var_set_string(scp, "Name", arg->string[0]);
sub_var_set(scp, "Number", "1");
error_with_position
(
pp,
scp,
i18n("$name: argument $number: must be a positive decimal number")
);
sub_context_delete(scp);
trace(("return -1;\n"));
trace(("}\n"));
return -1;
}
--start;
trace(("start = %ld;\n", start));
if (!number(arg->string[2]->str_text, &length))
{
sub_context_ty *scp;
scp = sub_context_new();
sub_var_set_string(scp, "Name", arg->string[0]);
sub_var_set(scp, "Number", "2");
error_with_position
(
pp,
scp,
i18n("$name: argument $number: must be a positive decimal number")
);
sub_context_delete(scp);
trace(("return -1;\n"));
trace(("}\n"));
return -1;
}
trace(("length = %ld;\n", length));
if (start < 0)
{
length += start;
start = 0;
trace(("length = %ld;\n", length));
}
if (length < 0)
{
start = 0;
length = 0;
}
end = start + length;
for (j = 3; j < arg->nstrings; ++j)
{
string_ty *s;
string_ty *s2;
s = arg->string[j];
trace(("s = \"%s\";\n", s->str_text));
if (start >= (int)(s->str_length))
s2 = str_from_c("");
else if (end > (int)(s->str_length))
{
s2 = str_n_from_c(s->str_text + start, s->str_length - start);
}
else
s2 = str_n_from_c(s->str_text + start, length);
trace(("s2 = \"%s\";\n", s2->str_text));
string_list_append(result, s2);
str_free(s2);
}
trace(("return 0;\n"));
trace(("}\n"));
return 0;
}
