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remap: change the mode argument from a boolean to a character

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Instead of taking a boolean value for get/put, pass a character; this
allows us to extend the number of possibilities in the future.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2011-05-05 10:08:53 -07:00
parent e7a7b19483
commit 0b5732e263
3 changed files with 11 additions and 15 deletions
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21
tftpd/remap.c
View file

@ -30,14 +30,13 @@
#define RULE_EXIT 0x04 /* Exit after matching this rule */
#define RULE_RESTART 0x08 /* Restart at the top after matching this rule */
#define RULE_ABORT 0x10 /* Terminate processing with an error */
#define RULE_GETONLY 0x20 /* Applicable to GET only */
#define RULE_PUTONLY 0x40 /* Applicable to PUT only */
#define RULE_INVERSE 0x80 /* Execute if regex *doesn't* match */
#define RULE_INVERSE 0x20 /* Execute if regex *doesn't* match */
struct rule {
struct rule *next;
int nrule;
int rule_flags;
char rule_mode;
regex_t rx;
const char *pattern;
};
@ -221,15 +220,13 @@ static int parseline(char *line, struct rule *r, int lineno)
case 'i':
rxflags |= REG_ICASE;
break;
case 'G':
r->rule_flags |= RULE_GETONLY;
break;
case 'P':
r->rule_flags |= RULE_PUTONLY;
break;
case '~':
r->rule_flags |= RULE_INVERSE;
break;
case 'G':
case 'P':
r->rule_mode = *p;
break;
default:
syslog(LOG_ERR,
"Remap command \"%s\" on line %d contains invalid char \"%c\"",
@ -329,7 +326,7 @@ void freerules(struct rule *r)
/* Execute a rule set on a string; returns a malloc'd new string. */
char *rewrite_string(const char *input, const struct rule *rules,
int is_put, match_pattern_callback macrosub,
char mode, match_pattern_callback macrosub,
const char **errmsg)
{
char *current = tfstrdup(input);
@ -348,10 +345,8 @@ char *rewrite_string(const char *input, const struct rule *rules,
}
for (ruleptr = rules; ruleptr; ruleptr = ruleptr->next) {
if (((ruleptr->rule_flags & RULE_GETONLY) && is_put) ||
((ruleptr->rule_flags & RULE_PUTONLY) && !is_put)) {
if (ruleptr->rule_mode && ruleptr->rule_mode != mode)
continue; /* Rule not applicable, try next */
}
if (!deadman--) {
syslog(LOG_WARNING,

2
tftpd/remap.h
View file

@ -35,7 +35,7 @@ struct rule *parserulefile(FILE *);
void freerules(struct rule *);
/* Execute a rule set on a string; returns a malloc'd new string. */
char *rewrite_string(const char *, const struct rule *, int,
char *rewrite_string(const char *, const struct rule *, char,
match_pattern_callback, const char **);
#endif /* WITH_REGEX */

3
tftpd/tftpd.c
View file

@ -1388,7 +1388,8 @@ static char *rewrite_access(char *filename, int mode, const char **msg)
{
if (rewrite_rules) {
char *newname =
rewrite_string(filename, rewrite_rules, mode != RRQ,
rewrite_string(filename, rewrite_rules,
mode != RRQ ? 'P' : 'G',
rewrite_macros, msg);
filename = newname;
}