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Filter: Don't fail badly when trying to access non-existent route in config time

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This commit is contained in:
Maria Matejka 2019-07-15 12:03:13 +02:00
parent bfa15a642f
commit 547be53b8c
2 changed files with 2 additions and 4 deletions
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2
filter/decl.m4
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@ -189,7 +189,7 @@ m4_define(SYMBOL, `FID_MEMBER(struct symbol *, sym, [[strcmp(f1->sym->name, f2->
m4_define(RTC, `FID_MEMBER(struct rtable_config *, rtc, [[strcmp(f1->rtc->name, f2->rtc->name)]], route table %s, item->rtc->name)')
m4_define(STATIC_ATTR, `FID_MEMBER(struct f_static_attr, sa, f1->sa.sa_code != f2->sa.sa_code,,)')
m4_define(DYNAMIC_ATTR, `FID_MEMBER(struct f_dynamic_attr, da, f1->da.ea_code != f2->da.ea_code,,)')
m4_define(ACCESS_RTE, `NEVER_CONSTANT()')
m4_define(ACCESS_RTE, `FID_HIC(,[[do { if (!fs->rte) runtime("No route to access"); } while (0)]],NEVER_CONSTANT())')
# 2) Code wrapping
# The code produced in 1xx temporary diversions is a raw code without

4
filter/filter.c
View File

@ -210,7 +210,6 @@ interpret(struct filter_state *fs, const struct f_line *line, struct f_val *val)
#define falloc(size) lp_alloc(fs->pool, size)
#define fpool fs->pool
#define ACCESS_RTE do { if (!fs->rte) runtime("No route to access"); } while (0)
#define ACCESS_EATTRS do { if (!fs->eattrs) f_cache_eattrs(fs); } while (0)
#include "filter/inst-interpret.c"
@ -221,7 +220,6 @@ interpret(struct filter_state *fs, const struct f_line *line, struct f_val *val)
#undef runtime
#undef falloc
#undef fpool
#undef ACCESS_RTE
#undef ACCESS_EATTRS
}
}
@ -400,7 +398,7 @@ f_eval_int(const struct f_line *expr)
LOG_BUFFER_INIT(filter_state.buf);
if (interpret(&filter_state, expr, &val) > F_RETURN)
cf_error("Runtime error while evaluating expression");
cf_error("Runtime error while evaluating expression; see log for details");
if (val.type != T_INT)
cf_error("Integer expression expected");