mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
#ifndef COSMOPOLITAN_LIBC_FMT_MAGNUMSTRS_H_
|
|
#define COSMOPOLITAN_LIBC_FMT_MAGNUMSTRS_H_
|
|
|
|
#define MAGNUM_TERMINATOR -123
|
|
|
|
#if !(__ASSEMBLER__ + __LINKER__ + 0)
|
|
COSMOPOLITAN_C_START_
|
|
|
|
#define MAGNUM_NUMBER(TABLE, INDEX) \
|
|
*(const int *)((uintptr_t)TABLE + TABLE[INDEX].x)
|
|
|
|
#define MAGNUM_STRING(TABLE, INDEX) \
|
|
(const char *)((uintptr_t)TABLE + TABLE[INDEX].s)
|
|
|
|
struct MagnumStr {
|
|
int x, s;
|
|
};
|
|
|
|
_Hide extern const struct MagnumStr kClockNames[];
|
|
_Hide extern const struct MagnumStr kErrnoDocs[];
|
|
_Hide extern const struct MagnumStr kErrnoNames[];
|
|
_Hide extern const struct MagnumStr kFcntlCmds[];
|
|
_Hide extern const struct MagnumStr kIpOptnames[];
|
|
_Hide extern const struct MagnumStr kOpenFlags[];
|
|
_Hide extern const struct MagnumStr kRlimitNames[];
|
|
_Hide extern const struct MagnumStr kSignalNames[];
|
|
_Hide extern const struct MagnumStr kSockOptnames[];
|
|
_Hide extern const struct MagnumStr kTcpOptnames[];
|
|
_Hide extern const struct MagnumStr kPollNames[];
|
|
|
|
char *DescribeMagnum(char *, const struct MagnumStr *, const char *, int);
|
|
|
|
__funline char *GetMagnumStr(const struct MagnumStr *ms, int x) {
|
|
int i;
|
|
for (i = 0; ms[i].x != MAGNUM_TERMINATOR; ++i) {
|
|
if (x == MAGNUM_NUMBER(ms, i)) {
|
|
return MAGNUM_STRING(ms, i);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Converts errno value to descriptive sentence.
|
|
* @return non-null rodata string or null if not found
|
|
*/
|
|
__funline char *_strerdoc(int x) {
|
|
if (x) {
|
|
return GetMagnumStr(kErrnoDocs, x);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Converts errno value to symbolic name.
|
|
* @return non-null rodata string or null if not found
|
|
*/
|
|
__funline char *_strerrno(int x) {
|
|
if (x) {
|
|
return GetMagnumStr(kErrnoNames, x);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
COSMOPOLITAN_C_END_
|
|
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
|
|
#endif /* COSMOPOLITAN_LIBC_FMT_MAGNUMSTRS_H_ */
|