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/*
** Handling of errno.
*/
#include "upb/stdc/error.h"
#include <string.h>
void upb_status_fromerrno(upb_status *status, int code) {
if (code != 0 && !upb_errno_is_wouldblock(code)) {
status->error = true;
upb_status_setcode(status, &upb_stdc_errorspace, code);
}
}
bool upb_errno_is_wouldblock(int code) {
return
#ifdef EAGAIN
code == EAGAIN ||
#endif
#ifdef EWOULDBLOCK
code == EWOULDBLOCK ||
#endif
false;
}
bool upb_stdc_codetostr(int code, char *buf, size_t len) {
// strerror() may use static buffers and is not guaranteed to be thread-safe,
// but it appears that it is not subject to buffer overflows in practice, and
// it used by other portable and high-quality software like Lua. For more
// discussion see: http://thread.gmane.org/gmane.comp.lang.lua.general/89506
char *err = strerror(code);
if (strlen(err) >= len) return false;
strcpy(buf, err);
return true;
}
upb_errorspace upb_stdc_errorspace = {"stdc", &upb_stdc_codetostr};
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