fish-shell/src/libc.c
Fabian Boehm fc794bab4c Switch to the terminfo crate
This allows us to get the terminfo information without linking against curses.

That means we can get by without a bunch of awkward C-API trickery.

There is no global "cur_term" kept by a library for us that we need to invalidate.

Note that it still requires a "unhashed terminfo database", and I don't know how well it handles termcap.

I am not actually sure if there are systems that *can't* have terminfo, everything I looked at
has the ncurses terminfo available to install at least.
2024-02-22 20:10:16 +01:00

183 lines
2.8 KiB
C

#include <locale.h>
#include <paths.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/resource.h>
#include <unistd.h>
#define UNUSED(x) (void)(x)
size_t C_MB_CUR_MAX() { return MB_CUR_MAX; }
uint64_t C_ST_LOCAL() {
#if defined(ST_LOCAL)
return ST_LOCAL;
#else
return 0;
#endif
}
// confstr + _CS_PATH is only available on macOS with rust's libc
// we could just declare extern "C" confstr directly in Rust
// that would panic if it failed to link, which C++ did not
// therefore we define a backup, which just returns an error
// which for confstr is 0
#if defined(_CS_PATH)
#else
size_t confstr(int name, char* buf, size_t size) {
UNUSED(name);
UNUSED(buf);
UNUSED(size);
return 0;
}
#endif
int C_CS_PATH() {
#if defined(_CS_PATH)
return _CS_PATH;
#else
return -1;
#endif
}
uint64_t C_MNT_LOCAL() {
#if defined(MNT_LOCAL)
return MNT_LOCAL;
#else
return 0;
#endif
}
const char* C_PATH_BSHELL() { return _PATH_BSHELL; }
int C_PC_CASE_SENSITIVE() {
#ifdef _PC_CASE_SENSITIVE
return _PC_CASE_SENSITIVE;
#else
return 0;
#endif
}
FILE* stdout_stream() { return stdout; }
int C_RLIMIT_CORE() { return RLIMIT_CORE; }
int C_RLIMIT_DATA() { return RLIMIT_DATA; }
int C_RLIMIT_FSIZE() { return RLIMIT_FSIZE; }
int C_RLIMIT_NOFILE() { return RLIMIT_NOFILE; }
int C_RLIMIT_STACK() { return RLIMIT_STACK; }
int C_RLIMIT_CPU() { return RLIMIT_CPU; }
int C_RLIMIT_SBSIZE() {
#ifdef RLIMIT_SBSIZE
return RLIMIT_SBSIZE;
#else
return -1;
#endif
}
int C_RLIMIT_NICE() {
#ifdef RLIMIT_NICE
return RLIMIT_NICE;
#else
return -1;
#endif
}
int C_RLIMIT_SIGPENDING() {
#ifdef RLIMIT_SIGPENDING
return RLIMIT_SIGPENDING;
#else
return -1;
#endif
}
int C_RLIMIT_MEMLOCK() {
#ifdef RLIMIT_MEMLOCK
return RLIMIT_MEMLOCK;
#else
return -1;
#endif
}
int C_RLIMIT_RSS() {
#ifdef RLIMIT_RSS
return RLIMIT_RSS;
#else
return -1;
#endif
}
int C_RLIMIT_MSGQUEUE() {
#ifdef RLIMIT_MSGQUEUE
return RLIMIT_MSGQUEUE;
#else
return -1;
#endif
}
int C_RLIMIT_RTPRIO() {
#ifdef RLIMIT_RTPRIO
return RLIMIT_RTPRIO;
#else
return -1;
#endif
}
int C_RLIMIT_NPROC() {
#ifdef RLIMIT_NPROC
return RLIMIT_NPROC;
#else
return -1;
#endif
}
int C_RLIMIT_AS() {
#ifdef RLIMIT_AS
return RLIMIT_AS;
#else
return -1;
#endif
}
int C_RLIMIT_SWAP() {
#ifdef RLIMIT_SWAP
return RLIMIT_SWAP;
#else
return -1;
#endif
}
int C_RLIMIT_RTTIME() {
#ifdef RLIMIT_RTTIME
return RLIMIT_RTTIME;
#else
return -1;
#endif
}
int C_RLIMIT_KQUEUES() {
#ifdef RLIMIT_KQUEUES
return RLIMIT_KQUEUES;
#else
return -1;
#endif
}
int C_RLIMIT_NPTS() {
#ifdef RLIMIT_NPTS
return RLIMIT_NPTS;
#else
return -1;
#endif
}
int C_RLIMIT_NTHR() {
#ifdef RLIMIT_NTHR
return RLIMIT_NTHR;
#else
return -1;
#endif
}