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Merged revisions 257544 via svnmerge from

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https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r257544 | tilghman | 2010-04-15 16:23:24 -0500 (Thu, 15 Apr 2010) | 6 lines
  
  Allow application options with arguments to contain parentheses, through a variety of escaping techniques.
  
  Fixes SWP-1194 (ABE-2143).
  
  Review: https://reviewboard.asterisk.org/r/604/
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@257560 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2010-04-15 21:26:19 +00:00
parent 84d0b95def
commit 8ced3317ed
3 changed files with 137 additions and 40 deletions
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88
main/app.c
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@@ -1809,13 +1809,19 @@ char *ast_read_textfile(const char *filename)
return output;
}
int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr)
static int parse_options(const struct ast_app_option *options, void *_flags, char **args, char *optstr, int flaglen)
{
char *s, *arg;
int curarg, res = 0;
unsigned int argloc;
struct ast_flags *flags = _flags;
struct ast_flags64 *flags64 = _flags;
ast_clear_flag(flags, AST_FLAGS_ALL);
if (flaglen == 32) {
ast_clear_flag(flags, AST_FLAGS_ALL);
} else {
flags64->flags = 0;
}
if (!optstr) {
return 0;
@@ -1826,8 +1832,40 @@ int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags
curarg = *s++ & 0x7f; /* the array (in app.h) has 128 entries */
argloc = options[curarg].arg_index;
if (*s == '(') {
int paren = 1, quote = 0;
int parsequotes = (s[1] == '"') ? 1 : 0;
/* Has argument */
arg = ++s;
for (; *s; s++) {
if (*s == '(' && !quote) {
paren++;
} else if (*s == ')' && !quote) {
/* Count parentheses, unless they're within quotes (or backslashed, below) */
paren--;
} else if (*s == '"' && parsequotes) {
/* Leave embedded quotes alone, unless they are the first character */
quote = quote ? 0 : 1;
ast_copy_string(s, s + 1, INT_MAX);
s--;
} else if (*s == '\\') {
if (!quote) {
/* If a backslash is found outside of quotes, remove it */
ast_copy_string(s, s + 1, INT_MAX);
} else if (quote && s[1] == '"') {
/* Backslash for a quote character within quotes, remove the backslash */
ast_copy_string(s, s + 1, INT_MAX);
} else {
/* Backslash within quotes, keep both characters */
s++;
}
}
if (paren == 0) {
break;
}
}
/* This will find the closing paren we found above, or none, if the string ended before we found one. */
if ((s = strchr(s, ')'))) {
if (argloc) {
args[argloc - 1] = arg;
@@ -1841,48 +1879,24 @@ int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags
} else if (argloc) {
args[argloc - 1] = "";
}
ast_set_flag(flags, options[curarg].flag);
if (flaglen == 32) {
ast_set_flag(flags, options[curarg].flag);
} else {
ast_set_flag64(flags64, options[curarg].flag);
}
}
return res;
}
int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr)
{
return parse_options(options, flags, args, optstr, 32);
}
int ast_app_parse_options64(const struct ast_app_option *options, struct ast_flags64 *flags, char **args, char *optstr)
{
char *s, *arg;
int curarg, res = 0;
unsigned int argloc;
flags->flags = 0;
if (!optstr) {
return 0;
}
s = optstr;
while (*s) {
curarg = *s++ & 0x7f; /* the array (in app.h) has 128 entries */
ast_set_flag64(flags, options[curarg].flag);
argloc = options[curarg].arg_index;
if (*s == '(') {
/* Has argument */
arg = ++s;
if ((s = strchr(s, ')'))) {
if (argloc) {
args[argloc - 1] = arg;
}
*s++ = '\0';
} else {
ast_log(LOG_WARNING, "Missing closing parenthesis for argument '%c' in string '%s'\n", curarg, arg);
res = -1;
break;
}
} else if (argloc) {
args[argloc - 1] = NULL;
}
}
return res;
return parse_options(options, flags, args, optstr, 64);
}
void ast_app_options2str64(const struct ast_app_option *options, struct ast_flags64 *flags, char *buf, size_t len)