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104 lines
2.3 KiB
104 lines
2.3 KiB
/* |
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* Copyright 1987, 1988 by MIT Student Information Processing Board. |
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* |
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* Permission to use, copy, modify, and distribute this software and |
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* its documentation for any purpose is hereby granted, provided that |
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* the names of M.I.T. and the M.I.T. S.I.P.B. not be used in |
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* advertising or publicity pertaining to distribution of the software |
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* without specific, written prior permission. M.I.T. and the |
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* M.I.T. S.I.P.B. make no representations about the suitability of |
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* this software for any purpose. It is provided "as is" without |
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* express or implied warranty. |
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*/ |
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#include "config.h" |
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#include <stdio.h> |
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#ifdef HAVE_TERMIOS_H |
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#include <termios.h> |
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#endif |
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#ifdef HAVE_UNISTD_H |
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#include <unistd.h> |
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#endif |
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#include "com_err.h" |
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#include "error_table.h" |
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#include "internal.h" |
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static void |
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default_com_err_proc (const char *whoami, errcode_t code, const |
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char *fmt, va_list args) |
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COM_ERR_ATTR((format(printf, 3, 0))); |
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static void |
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default_com_err_proc (const char *whoami, errcode_t code, const |
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char *fmt, va_list args) |
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{ |
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int do_cr = 1, fd = fileno(stderr); |
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if (whoami) { |
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fputs(whoami, stderr); |
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fputs(": ", stderr); |
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} |
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if (code) { |
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fputs(error_message(code), stderr); |
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fputs(" ", stderr); |
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} |
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if (fmt) { |
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vfprintf (stderr, fmt, args); |
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} |
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if (!isatty(fd)) |
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do_cr = 0; |
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#ifdef HAVE_TERMIOS_H |
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else { |
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struct termios t; |
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if ((tcgetattr(fd, &t)) == 0 && |
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(t.c_oflag & OPOST) && (t.c_oflag & ONLCR)) |
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do_cr = 0; |
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} |
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#endif |
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if (do_cr) |
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fputc('\r', stderr); |
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fputc('\n', stderr); |
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fflush(stderr); |
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} |
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typedef void (*errf) (const char *, errcode_t, const char *, va_list); |
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errf com_err_hook = default_com_err_proc; |
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void com_err_va (const char *whoami, errcode_t code, const char *fmt, |
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va_list args) |
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{ |
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(*com_err_hook) (whoami, code, fmt, args); |
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} |
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void com_err (const char *whoami, |
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errcode_t code, |
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const char *fmt, ...) |
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{ |
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va_list pvar; |
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if (!com_err_hook) |
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com_err_hook = default_com_err_proc; |
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va_start(pvar, fmt); |
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com_err_va (whoami, code, fmt, pvar); |
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va_end(pvar); |
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} |
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errf set_com_err_hook(errf new_proc) |
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{ |
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errf x = com_err_hook; |
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if (new_proc) |
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com_err_hook = new_proc; |
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else |
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com_err_hook = default_com_err_proc; |
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return x; |
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} |
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errf reset_com_err_hook(void) { |
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errf x = com_err_hook; |
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com_err_hook = default_com_err_proc; |
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return x; |
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}
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