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add value processing to conf.c

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Quinn
2025-12-16 11:36:31 +01:00
parent 3a2041194c
commit b595d83468
2 changed files with 49 additions and 1 deletions
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36
src/io/conf.c
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@@ -5,6 +5,9 @@
* at: www.github.com/thepigeongenerator/mcaselector-lite */
#include "conf.h"
#include <assert.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include "../types.h"
@@ -37,4 +40,35 @@ int conf_getkeyval(const char *restrict buf, const char *const restrict *restric
return i;
}
int conf_val(int);
int conf_procval(u8 type, const char *val, void *out)
{
char *end;
switch (type) {
case CONF_STR: *(char **)out = strdup(val); return 0;
case CONF_I8: *(i8 *)out = strtoimax(val, &end, 0); return (end && !*end);
case CONF_I16: *(i16 *)out = strtoimax(val, &end, 0); return (end && !*end);
case CONF_I32: *(i32 *)out = strtoimax(val, &end, 0); return (end && !*end);
case CONF_I64: *(i64 *)out = strtoimax(val, &end, 0); return (end && !*end);
case CONF_U8: *(u8 *)out = strtoumax(val, &end, 0); return (end && !*end);
case CONF_U16: *(u16 *)out = strtoumax(val, &end, 0); return (end && !*end);
case CONF_U32: *(u32 *)out = strtoumax(val, &end, 0); return (end && !*end);
case CONF_U64: *(u64 *)out = strtoumax(val, &end, 0); return (end && !*end);
#if __SIZEOF_FLOAT__ == 4
case CONF_F32: *(f32 *)out = strtof(val, &end); return (end && !*end);
#else
#error float is not 4 bytes wide
#endif
#if __SIZEOF_DOUBLE__ == 8
case CONF_F64: *(f64 *)out = strtod(val, &end); return (end && !*end);
#elif __SIZEOF_LONG_DOUBLE__ == 8
case CONF_F64: *(f64 *)out = strtold(val, &end); return (end && !*end);
#else
#error double or long double are not 8 bytes wide
#endif
default: assert("invalid type");
}
return 0;
}

14
src/io/conf.h
View File

@@ -7,6 +7,20 @@
#include "../types.h"
#include "../util/atrb.h"
enum conf_type {
CONF_STR = 0x00,
CONF_I8 = 0x00 | 0x01,
CONF_I16 = 0x00 | 0x02,
CONF_I32 = 0x00 | 0x04,
CONF_I64 = 0x00 | 0x08,
CONF_U8 = 0x10 | 0x01,
CONF_U16 = 0x10 | 0x02,
CONF_U32 = 0x10 | 0x04,
CONF_U64 = 0x10 | 0x08,
CONF_F32 = 0x20 | 0x04,
CONF_F64 = 0x20 | 0x08,
};
/* Gets the key and value, if present. Writes the pointer for the value to `out`.
* Returns the key index, or <0 upon failure. */
int conf_getkeyval(const char *restrict buf, const char *const restrict *restrict keys, int klen,