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66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/* vi:set ts=2 sts=2 sw=2:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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/*
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* env.c -- environment variable access
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*/
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#include <uv.h>
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#include "os/os.h"
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#include "misc2.h"
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#ifdef HAVE_CRT_EXTERNS_H
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#include <crt_externs.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(AMIGA) || defined(__MRC__) || defined(__SC__)
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/*
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* No environ[] on the Amiga and on the Mac (using MPW).
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*/
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return NULL;
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# else
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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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int 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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# endif
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}
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