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/* SPDX-License-Identifier: ISC */
#include "libcfg.h"
#include <string.h>
#include <stdio.h>
#include <ctype.h>
static const cfg_param_t *find_param(rdline_t *rd, const char *name,
const cfg_param_t *params, size_t count)
{
size_t i;
for (i = 0; i < count; ++i) {
if (!strcmp(params[i].key, name))
return params + i;
}
fprintf(stderr, "%s: %zu: unknown keyword '%s'\n",
rd->filename, rd->lineno, name);
return NULL;
}
static int splitkv(rdline_t *rd, char **k, char **v)
{
char *key = rd->line, *value = rd->line;
while (*value != ' ' && *value != '\0') {
if (!isalpha(*value)) {
fprintf(stderr,
"%s: %zu: unexpected '%c' in keyword\n",
rd->filename, rd->lineno, *value);
return -1;
}
++value;
}
if (*value != ' ') {
fprintf(stderr, "%s: %zu: expected argument after '%s'\n",
rd->filename, rd->lineno, key);
return -1;
}
*(value++) = '\0';
*k = key;
*v = value;
return 0;
}
int rdcfg(void *cfgobj, rdline_t *rd, const cfg_param_t *params, size_t count)
{
const cfg_param_t *p;
char *key, *value;
int ret;
while ((ret = rdline(rd)) == 0) {
if (splitkv(rd, &key, &value))
return -1;
p = find_param(rd, key, params, count);
if (p == NULL)
return -1;
if (p->allow_block && *value == '{') {
for (++value; *value == ' '; ++value)
;
if (*value != '\0') {
ret = p->handle(cfgobj, value, rd);
if (ret)
return -1;
}
while ((ret = rdline(rd)) == 0) {
if (strcmp(rd->line, "}") == 0)
break;
if (p->handle(cfgobj, rd->line, rd))
return -1;
}
if (ret < 0)
return -1;
if (ret > 0)
goto fail_bra;
} else if (p->handle(cfgobj, value, rd)) {
return -1;
}
}
return ret < 0 ? -1 : 0;
fail_bra:
fprintf(stderr, "%s: missing '}' before end-of-file\n", rd->filename);
return -1;
}
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