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Conf: Better error message when reading iproute2 config

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Reported by: Martin Weinelt <martin@darmstadt.freifunk.net>
This commit is contained in:
Maria Matejka 2020-02-04 10:34:46 +01:00
parent 027a3e66f7
commit ab089f4fb5
2 changed files with 13 additions and 9 deletions
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10
conf/conf.h
View File

@ -198,11 +198,11 @@ struct symbol *cf_localize_symbol(struct symbol *sym);
* Result: Pointer to the newly defined symbol. If we are in the top-level
* scope, it's the same @sym as passed to the function.
*/
#define cf_define_symbol(sym_, type_, var_, def_) ({ \
struct symbol *sym = cf_localize_symbol(sym_); \
sym->class = type_; \
sym->var_ = def_; \
sym; })
#define cf_define_symbol(osym_, type_, var_, def_) ({ \
struct symbol *sym_ = cf_localize_symbol(osym_); \
sym_->class = type_; \
sym_->var_ = def_; \
sym_; })
void cf_push_scope(struct symbol *);
void cf_pop_scope(void);

12
sysdep/unix/main.c
View File

@ -95,11 +95,15 @@ drop_gid(gid_t gid)
#ifdef PATH_IPROUTE_DIR
static inline void
add_num_const(char *name, int val)
add_num_const(char *name, int val, const char *file, const uint line)
{
struct f_val *v = cfg_alloc(sizeof(struct f_val));
*v = (struct f_val) { .type = T_INT, .val.i = val };
cf_define_symbol(cf_get_symbol(name), SYM_CONSTANT | T_INT, val, v);
struct symbol *sym = cf_get_symbol(name);
if (sym->class && (sym->scope == conf_this_scope))
cf_error("Error reading value for %s from %s:%d: already defined", name, file, line);
cf_define_symbol(sym, SYM_CONSTANT | T_INT, val, v);
}
/* the code of read_iproute_table() is based on
@ -119,7 +123,7 @@ read_iproute_table(char *file, char *prefix, int max)
if (!fp)
return;
while (fgets(buf, sizeof(buf), fp))
for (uint line = 1; fgets(buf, sizeof(buf), fp); line++)
{
char *p = buf;
@ -142,7 +146,7 @@ read_iproute_table(char *file, char *prefix, int max)
if ((*p < 'a' || *p > 'z') && (*p < 'A' || *p > 'Z') && (*p < '0' || *p > '9') && (*p != '_'))
*p = '_';
add_num_const(namebuf, val);
add_num_const(namebuf, val, file, line);
}
fclose(fp);