mirror of
https://github.com/neovim/neovim.git
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90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
// env.c -- environment variable access
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#include <uv.h>
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#include "nvim/ascii.h"
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#include "nvim/os/os.h"
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#include "nvim/misc2.h"
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#include "nvim/strings.h"
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#ifdef HAVE__NSGETENVIRON
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#include <crt_externs.h>
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#endif
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#ifdef HAVE_SYS_UTSNAME_H
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#include <sys/utsname.h>
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#endif
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const char *os_getenv(const char *name)
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{
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return getenv(name);
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}
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int os_setenv(const char *name, const char *value, int overwrite)
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{
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return setenv(name, value, overwrite);
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}
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char *os_getenvname_at_index(size_t index)
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{
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# if defined(HAVE__NSGETENVIRON)
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char **environ = *_NSGetEnviron();
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# elif !defined(__WIN32__)
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// Borland C++ 5.2 has this in a header file.
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extern char **environ;
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# endif
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// check if index is inside the environ array
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for (size_t i = 0; i < index; i++) {
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if (environ[i] == NULL) {
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return NULL;
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}
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}
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char *str = environ[index];
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if (str == NULL) {
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return NULL;
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}
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size_t namesize = 0;
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while (str[namesize] != '=' && str[namesize] != NUL) {
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namesize++;
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}
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char *name = (char *)vim_strnsave((char_u *)str, namesize);
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return name;
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}
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/// Get the process ID of the Neovim process.
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///
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/// @return the process ID.
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int64_t os_get_pid(void)
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{
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#ifdef _WIN32
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return (int64_t)GetCurrentProcessId();
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#else
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return (int64_t)getpid();
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#endif
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}
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/// Get the hostname of the machine running Neovim.
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///
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/// @param hostname Buffer to store the hostname.
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/// @param len Length of `hostname`.
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void os_get_hostname(char *hostname, size_t len)
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{
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#ifdef HAVE_SYS_UTSNAME_H
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struct utsname vutsname;
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if (uname(&vutsname) < 0) {
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*hostname = '\0';
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} else {
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strncpy(hostname, vutsname.nodename, len - 1);
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hostname[len - 1] = '\0';
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}
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#else
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// TODO(unknown): Implement this for windows.
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// See the implementation used in vim:
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// https://code.google.com/p/vim/source/browse/src/os_win32.c?r=6b69d8dde19e32909f4ee3a6337e6a2ecfbb6f72#2899
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*hostname = '\0';
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#endif
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}
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