mirror of
https://github.com/sheumann/hush.git
synced 2024-08-26 12:29:04 +00:00
hush: rename o_quoted to has_quoted_part; small code shrink
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
parent
f2dc20c2d5
commit
38292b68c9
59
shell/hush.c
59
shell/hush.c
@ -400,8 +400,7 @@ typedef struct o_string {
|
||||
smallint o_glob;
|
||||
/* At least some part of the string was inside '' or "",
|
||||
* possibly empty one: word"", wo''rd etc. */
|
||||
//TODO: rename to no_empty_expansion?
|
||||
smallint o_quoted;
|
||||
smallint has_quoted_part;
|
||||
smallint has_empty_slot;
|
||||
smallint o_assignment; /* 0:maybe, 1:yes, 2:no */
|
||||
} o_string;
|
||||
@ -1964,7 +1963,7 @@ static void setup_string_in_str(struct in_str *i, const char *s)
|
||||
static void o_reset_to_empty_unquoted(o_string *o)
|
||||
{
|
||||
o->length = 0;
|
||||
o->o_quoted = 0;
|
||||
o->has_quoted_part = 0;
|
||||
if (o->data)
|
||||
o->data[0] = '\0';
|
||||
}
|
||||
@ -2088,7 +2087,7 @@ static void o_addQchr(o_string *o, int ch)
|
||||
o->data[o->length] = '\0';
|
||||
}
|
||||
|
||||
static void o_addQstr(o_string *o, const char *str, int len)
|
||||
static void o_addQblock(o_string *o, const char *str, int len)
|
||||
{
|
||||
if (!o->o_escape) {
|
||||
o_addblock(o, str, len);
|
||||
@ -2120,6 +2119,11 @@ static void o_addQstr(o_string *o, const char *str, int len)
|
||||
}
|
||||
}
|
||||
|
||||
static void o_addQstr(o_string *o, const char *str)
|
||||
{
|
||||
o_addQblock(o, str, strlen(str));
|
||||
}
|
||||
|
||||
/* A special kind of o_string for $VAR and `cmd` expansion.
|
||||
* It contains char* list[] at the beginning, which is grown in 16 element
|
||||
* increments. Actual string data starts at the next multiple of 16 * (char*).
|
||||
@ -2139,7 +2143,7 @@ static void debug_print_list(const char *prefix, o_string *o, int n)
|
||||
|
||||
indent();
|
||||
fprintf(stderr, "%s: list:%p n:%d string_start:%d length:%d maxlen:%d glob:%d quoted:%d escape:%d\n",
|
||||
prefix, list, n, string_start, o->length, o->maxlen, o->o_glob, o->o_quoted, o->o_escape);
|
||||
prefix, list, n, string_start, o->length, o->maxlen, o->o_glob, o->has_quoted_part, o->o_escape);
|
||||
while (i < n) {
|
||||
indent();
|
||||
fprintf(stderr, " list[%d]=%d '%s' %p\n", i, (int)list[i],
|
||||
@ -2544,7 +2548,7 @@ static int expand_on_ifs(o_string *output, int n, const char *str)
|
||||
int word_len = strcspn(str, G.ifs);
|
||||
if (word_len) {
|
||||
if (output->o_escape || !output->o_glob)
|
||||
o_addQstr(output, str, word_len);
|
||||
o_addQblock(output, str, word_len);
|
||||
else /* protect backslashes against globbing up :) */
|
||||
o_addblock_duplicate_backslash(output, str, word_len);
|
||||
str += word_len;
|
||||
@ -2994,7 +2998,7 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
|
||||
* and in this case should treat it like '$*' - see 'else...' below */
|
||||
if (first_ch == ('@'|0x80) && !or_mask) { /* quoted $@ */
|
||||
while (1) {
|
||||
o_addQstr(output, G.global_argv[i], strlen(G.global_argv[i]));
|
||||
o_addQstr(output, G.global_argv[i]);
|
||||
if (++i >= G.global_argc)
|
||||
break;
|
||||
o_addchr(output, '\0');
|
||||
@ -3003,7 +3007,7 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
|
||||
}
|
||||
} else { /* quoted $*: add as one word */
|
||||
while (1) {
|
||||
o_addQstr(output, G.global_argv[i], strlen(G.global_argv[i]));
|
||||
o_addQstr(output, G.global_argv[i]);
|
||||
if (!G.global_argv[++i])
|
||||
break;
|
||||
if (G.ifs[0])
|
||||
@ -3081,7 +3085,7 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
|
||||
} /* switch (char after <SPECIAL_VAR_SYMBOL>) */
|
||||
|
||||
if (val && val[0]) {
|
||||
o_addQstr(output, val, strlen(val));
|
||||
o_addQstr(output, val);
|
||||
}
|
||||
free(to_be_freed);
|
||||
/* Do the check to avoid writing to a const string */
|
||||
@ -3109,6 +3113,7 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char
|
||||
} else {
|
||||
o_addchr(output, '\0');
|
||||
}
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
@ -5485,7 +5490,7 @@ static int reserved_word(o_string *word, struct parse_context *ctx)
|
||||
# endif
|
||||
const struct reserved_combo *r;
|
||||
|
||||
if (word->o_quoted)
|
||||
if (word->has_quoted_part)
|
||||
return 0;
|
||||
r = match_reserved_word(word);
|
||||
if (!r)
|
||||
@ -5561,7 +5566,7 @@ static int done_word(o_string *word, struct parse_context *ctx)
|
||||
struct command *command = ctx->command;
|
||||
|
||||
debug_printf_parse("done_word entered: '%s' %p\n", word->data, command);
|
||||
if (word->length == 0 && word->o_quoted == 0) {
|
||||
if (word->length == 0 && !word->has_quoted_part) {
|
||||
debug_printf_parse("done_word return 0: true null, ignored\n");
|
||||
return 0;
|
||||
}
|
||||
@ -5588,7 +5593,7 @@ static int done_word(o_string *word, struct parse_context *ctx)
|
||||
if (ctx->pending_redirect->rd_type == REDIRECT_HEREDOC) {
|
||||
unbackslash(ctx->pending_redirect->rd_filename);
|
||||
/* Is it <<"HEREDOC"? */
|
||||
if (word->o_quoted) {
|
||||
if (word->has_quoted_part) {
|
||||
ctx->pending_redirect->rd_dup |= HEREDOC_QUOTED;
|
||||
}
|
||||
}
|
||||
@ -5657,7 +5662,7 @@ static int done_word(o_string *word, struct parse_context *ctx)
|
||||
"groups and arglists don't mix\n");
|
||||
return 1;
|
||||
}
|
||||
if (word->o_quoted /* word had "xx" or 'xx' at least as part of it. */
|
||||
if (word->has_quoted_part
|
||||
/* optimization: and if it's ("" or '') or ($v... or `cmd`...): */
|
||||
&& (word->data[0] == '\0' || word->data[0] == SPECIAL_VAR_SYMBOL)
|
||||
/* (otherwise it's known to be not empty and is already safe) */
|
||||
@ -5685,7 +5690,7 @@ static int done_word(o_string *word, struct parse_context *ctx)
|
||||
|
||||
#if ENABLE_HUSH_LOOPS
|
||||
if (ctx->ctx_res_w == RES_FOR) {
|
||||
if (word->o_quoted
|
||||
if (word->has_quoted_part
|
||||
|| !is_well_formed_var_name(command->argv[0], '\0')
|
||||
) {
|
||||
/* bash says just "not a valid identifier" */
|
||||
@ -5842,7 +5847,7 @@ static int parse_redirect(struct parse_context *ctx,
|
||||
* the redirection expression. For example:
|
||||
* echo \2>a
|
||||
* writes the character 2 into file a"
|
||||
* We are getting it right by setting ->o_quoted on any \<char>
|
||||
* We are getting it right by setting ->has_quoted_part on any \<char>
|
||||
*
|
||||
* A -1 return means no valid number was found,
|
||||
* the caller should use the appropriate default for this redirection.
|
||||
@ -6042,7 +6047,9 @@ static FILE *generate_stream_from_string(const char *s, pid_t *pid_p)
|
||||
*pid_p = pid;
|
||||
# if ENABLE_HUSH_FAST
|
||||
G.count_SIGCHLD++;
|
||||
//bb_error_msg("[%d] fork in generate_stream_from_string: G.count_SIGCHLD:%d G.handled_SIGCHLD:%d", getpid(), G.count_SIGCHLD, G.handled_SIGCHLD);
|
||||
//bb_error_msg("[%d] fork in generate_stream_from_string:"
|
||||
// " G.count_SIGCHLD:%d G.handled_SIGCHLD:%d",
|
||||
// getpid(), G.count_SIGCHLD, G.handled_SIGCHLD);
|
||||
# endif
|
||||
enable_restore_tty_pgrp_on_exit();
|
||||
# if !BB_MMU
|
||||
@ -6105,7 +6112,7 @@ static int parse_group(o_string *dest, struct parse_context *ctx,
|
||||
|
||||
debug_printf_parse("parse_group entered\n");
|
||||
#if ENABLE_HUSH_FUNCTIONS
|
||||
if (ch == '(' && !dest->o_quoted) {
|
||||
if (ch == '(' && !dest->has_quoted_part) {
|
||||
if (dest->length)
|
||||
if (done_word(dest, ctx))
|
||||
return 1;
|
||||
@ -6140,7 +6147,7 @@ static int parse_group(o_string *dest, struct parse_context *ctx,
|
||||
#if 0 /* Prevented by caller */
|
||||
if (command->argv /* word [word]{... */
|
||||
|| dest->length /* word{... */
|
||||
|| dest->o_quoted /* ""{... */
|
||||
|| dest->has_quoted_part /* ""{... */
|
||||
) {
|
||||
syntax_error(NULL);
|
||||
debug_printf_parse("parse_group return 1: "
|
||||
@ -6705,7 +6712,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
redir_type redir_style;
|
||||
|
||||
if (is_in_dquote) {
|
||||
/* dest.o_quoted = 1; - already is (see below) */
|
||||
/* dest.has_quoted_part = 1; - already is (see below) */
|
||||
if (parse_stream_dquoted(&ctx.as_string, &dest, input, '"')) {
|
||||
goto parse_error;
|
||||
}
|
||||
@ -6766,7 +6773,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
/* Are { and } special here? */
|
||||
if (ctx.command->argv /* word [word]{... - non-special */
|
||||
|| dest.length /* word{... - non-special */
|
||||
|| dest.o_quoted /* ""{... - non-special */
|
||||
|| dest.has_quoted_part /* ""{... - non-special */
|
||||
|| (next != ';' /* }; - special */
|
||||
&& next != ')' /* }) - special */
|
||||
&& next != '&' /* }& and }&& ... - special */
|
||||
@ -6830,7 +6837,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
if (ch == '}') {
|
||||
if (!IS_NULL_CMD(ctx.command) /* cmd } */
|
||||
|| dest.length != 0 /* word} */
|
||||
|| dest.o_quoted /* ""} */
|
||||
|| dest.has_quoted_part /* ""} */
|
||||
) {
|
||||
goto ordinary_char;
|
||||
}
|
||||
@ -6844,7 +6851,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
#if ENABLE_HUSH_CASE
|
||||
&& (ch != ')'
|
||||
|| ctx.ctx_res_w != RES_MATCH
|
||||
|| (!dest.o_quoted && strcmp(dest.data, "esac") == 0)
|
||||
|| (!dest.has_quoted_part && strcmp(dest.data, "esac") == 0)
|
||||
)
|
||||
#endif
|
||||
) {
|
||||
@ -6979,7 +6986,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
nommu_addchr(&ctx.as_string, ch);
|
||||
/* Example: echo Hello \2>file
|
||||
* we need to know that word 2 is quoted */
|
||||
dest.o_quoted = 1;
|
||||
dest.has_quoted_part = 1;
|
||||
}
|
||||
#if !BB_MMU
|
||||
else {
|
||||
@ -6996,7 +7003,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
}
|
||||
break;
|
||||
case '\'':
|
||||
dest.o_quoted = 1;
|
||||
dest.has_quoted_part = 1;
|
||||
while (1) {
|
||||
ch = i_getch(input);
|
||||
if (ch == EOF) {
|
||||
@ -7010,7 +7017,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
}
|
||||
break;
|
||||
case '"':
|
||||
dest.o_quoted = 1;
|
||||
dest.has_quoted_part = 1;
|
||||
is_in_dquote ^= 1; /* invert */
|
||||
if (dest.o_assignment == NOT_ASSIGNMENT)
|
||||
dest.o_escape ^= 1;
|
||||
@ -7101,7 +7108,7 @@ static struct pipe *parse_stream(char **pstring,
|
||||
if (ctx.ctx_res_w == RES_MATCH
|
||||
&& ctx.command->argv == NULL /* not (word|(... */
|
||||
&& dest.length == 0 /* not word(... */
|
||||
&& dest.o_quoted == 0 /* not ""(... */
|
||||
&& dest.has_quoted_part == 0 /* not ""(... */
|
||||
) {
|
||||
continue;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user