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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
// This is an open source non-commercial project. Dear PVS-Studio, please check
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// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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#include <stdio.h>
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#ifdef WIN32
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# include <windows.h>
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#else
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# include <stdlib.h>
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#endif
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#ifdef WIN32
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int wmain(int argc, wchar_t **argv)
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#else
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int main(int argc, char **argv)
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#endif
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{
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if (argc != 2) {
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return 1;
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}
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#ifdef WIN32
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wchar_t *value = _wgetenv(argv[1]);
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if (value == NULL) {
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return 1;
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}
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int utf8_len = WideCharToMultiByte(CP_UTF8,
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0,
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value,
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-1,
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NULL,
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0,
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NULL,
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NULL);
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if (utf8_len == 0) {
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return (int)GetLastError();
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}
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char *utf8_value = (char *)calloc((size_t)utf8_len, sizeof(char));
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utf8_len = WideCharToMultiByte(CP_UTF8,
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0,
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value,
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-1,
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utf8_value,
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utf8_len,
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NULL,
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NULL);
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fprintf(stdout, "%s", utf8_value);
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free(utf8_value);
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#else
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char *value = getenv(argv[1]);
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if (value == NULL) {
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fprintf(stderr, "env var not found: %s", argv[1]);
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return 1;
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}
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fprintf(stdout, "%s", value);
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#endif
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fflush(stdout);
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return 0;
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}
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