2 * Copyright (C) 2006-2010 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
6 extern char *dss_errlist[];
7 extern char *dss_error_txt;
9 __printf_2_3 void dss_log(int ll, const char* fmt,...);
12 * This bit indicates whether a number is considered a system error number
13 * If yes, the system errno is just the result of clearing this bit from
16 #define SYSTEM_ERROR_BIT 30
18 /** Check whether the system error bit is set. */
19 #define IS_SYSTEM_ERROR(num) (!!((num) & (1 << SYSTEM_ERROR_BIT)))
21 /** Set the system error bit for the given number. */
22 #define ERRNO_TO_DSS_ERROR(num) ((num) | (1 << SYSTEM_ERROR_BIT))
25 * dss' version of strerror(3).
27 * \param num The error number.
29 * \return The error text of \a num.
31 static inline char *dss_strerror(int num)
34 if (IS_SYSTEM_ERROR(num))
35 return strerror((num) & ((1 << SYSTEM_ERROR_BIT) - 1));
37 return dss_errlist[num];
41 DSS_ERROR(SUCCESS, "success"), \
42 DSS_ERROR(SYNTAX, "syntax error"), \
43 DSS_ERROR(ATOI_OVERFLOW, "value too large"), \
44 DSS_ERROR(STRTOLL, "unknown strtoll error"), \
45 DSS_ERROR(ATOI_NO_DIGITS, "no digits found in string"), \
46 DSS_ERROR(ATOI_JUNK_AT_END, "further characters after number"), \
47 DSS_ERROR(INVALID_NUMBER, "invalid number"), \
48 DSS_ERROR(STRFTIME, "strftime() failed"), \
49 DSS_ERROR(LOCALTIME, "localtime() failed"), \
50 DSS_ERROR(NULL_OPEN, "can not open /dev/null"), \
51 DSS_ERROR(DUP_PIPE, "exec error: can not create pipe"), \
52 DSS_ERROR(INVOLUNTARY_EXIT, "unexpected termination cause"), \
53 DSS_ERROR(BAD_EXIT_CODE, "unexpected exit code"), \
54 DSS_ERROR(SIGNAL_SIG_ERR, "signal() returned SIG_ERR"), \
55 DSS_ERROR(SIGNAL, "caught terminating signal"), \
56 DSS_ERROR(BUG, "values of beta might cause dom!")
59 * This is temporarily defined to expand to its first argument (prefixed by
60 * 'E_') and gets later redefined to expand to the error text only
62 #define DSS_ERROR(err, msg) E_ ## err
64 enum dss_error_codes {
68 #define DSS_ERROR(err, msg) msg
69 #define DEFINE_DSS_ERRLIST char *dss_errlist[] = {DSS_ERRORS}