mirror of
https://github.com/thepigeongenerator/mcaselector-lite
synced 2026-02-07 23:28:09 +01:00
Quinn
8a01cd3a47
This should be the end of the identity crisis with files' copyright headers/disclosures. We shall not be using names in the headers, since this does not make sense, this is covered by the git logs, and is preferred. The following commit will tackle the CONTRIBUTORS file, to specify how it should be generated.
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* Copyright (C)2025 MCA-Selector-Lite
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* Licensed under GPL-2.0-only. For further information,
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* view `git log`, and the COPYING and CONTRIBUTORS files
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* at www.github.com/thepigeongenerator/mcaselector-lite. */
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#include "conf.h"
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#include <assert.h>
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#include <inttypes.h>
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#include <mcaselector-lite/atrb.h>
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#include <mcaselector-lite/types.h>
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#include <stdlib.h>
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#include <string.h>
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/* Matches s1 with s2, returns a pointer to s1 where the match stopped. */
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static const char *strmat(const char *s1, const char *s2) PURE NONNULL((1, 2));
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static const char *strmat(const char *s1, const char *s2)
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{
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while ((*s1 == *s2) && *s1)
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s1++, s2++;
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return s1;
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}
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int conf_getkeyval(const char *restrict buf,
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const char *const restrict *restrict keys, int klen,
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const char *restrict *restrict out)
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{
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const char *tmp = NULL;
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ASSUME((klen > 0));
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int i = 0;
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for (; i < klen && !tmp; i++) {
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tmp = strmat(buf, keys[i]);
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tmp = keys[i][buf - tmp] ? tmp : NULL;
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}
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if (!tmp || *tmp != '=')
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return -1;
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*out = tmp + 1;
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return i;
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}
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int conf_procval(u8 type, const char *val, void *out)
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{
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char *end;
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switch (type) {
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case CONF_STR: *(char **)out = strdup(val); return 0;
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case CONF_S8: *(s8 *)out = strtoimax(val, &end, 0); return (end && !*end);
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case CONF_S16: *(s16 *)out = strtoimax(val, &end, 0); return (end && !*end);
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case CONF_S32: *(s32 *)out = strtoimax(val, &end, 0); return (end && !*end);
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case CONF_S64: *(s64 *)out = strtoimax(val, &end, 0); return (end && !*end);
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case CONF_U8: *(u8 *)out = strtoumax(val, &end, 0); return (end && !*end);
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case CONF_U16: *(u16 *)out = strtoumax(val, &end, 0); return (end && !*end);
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case CONF_U32: *(u32 *)out = strtoumax(val, &end, 0); return (end && !*end);
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case CONF_U64: *(u64 *)out = strtoumax(val, &end, 0); return (end && !*end);
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#if __SIZEOF_FLOAT__ == 4
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case CONF_F32: *(f32 *)out = strtof(val, &end); return (end && !*end);
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#else
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#error float is not 4 bytes wide
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#endif
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#if __SIZEOF_DOUBLE__ == 8
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case CONF_F64: *(f64 *)out = strtod(val, &end); return (end && !*end);
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#elif __SIZEOF_LONG_DOUBLE__ == 8
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case CONF_F64: *(f64 *)out = strtold(val, &end); return (end && !*end);
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#else
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#error double or long double are not 8 bytes wide
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#endif
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default: assert("invalid type");
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}
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return 0;
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}
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