openalbridge/errlib.c
author nemo
Fri, 16 Oct 2009 19:59:41 +0000
changeset 2507 c99f13e604d0
parent 2444 ace11b7d8eab
child 2529 51e5df1c8462
permissions -rw-r--r--
Missing deepspace theme
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/*
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 module: errlib.c
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 purpose: library of error functions
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 reference: Stevens, Unix network programming (2ed), p.922
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 */
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#include "errlib.h"
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#define MAXLINE 4095
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int daemon_proc = 0; /* set to 0 if stdout/stderr available, else set to 1 */
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static void err_doit (int errnoflag, int level, const char *fmt, va_list ap)
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{
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        int errno_save = errno, n;
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        char buf[MAXLINE+1];
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        vsnprintf (buf, MAXLINE, fmt, ap);
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        n = strlen(buf);
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        if (errnoflag)
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                snprintf (buf+n, MAXLINE-n, ": %s", strerror(errno_save));
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        strcat (buf, "\n");
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        if (daemon_proc)
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                syslog (level, buf);
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        else {
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                fflush (stdout);
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                fprintf (stderr, buf);
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                fflush (stderr);
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        }
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        return;
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}
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void err_ret (const char *fmt, ...)
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{
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        va_list ap;
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        va_start (ap, fmt);
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        err_doit (1, LOG_INFO, fmt, ap);
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        va_end (ap);
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        return;
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}
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void err_sys (const char *fmt, ...)
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{
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        va_list ap;
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        va_start (ap, fmt);
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        err_doit (1, LOG_ERR, fmt, ap);
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        va_end (ap);
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        exit (1);
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}
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void err_msg (const char *fmt, ...)
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{
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        va_list ap;
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        va_start (ap, fmt);
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        err_doit (0, LOG_INFO, fmt, ap);
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        va_end (ap);
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        return;
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}
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void err_quit (const char *fmt, ...)
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{
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        va_list ap;
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        va_start (ap, fmt);
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        err_doit (0, LOG_ERR, fmt, ap);
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        va_end (ap);
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        exit (1);
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}
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void err_dump (const char *fmt, ...)
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{
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        va_list ap;
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        va_start (ap, fmt);
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        err_doit (1, LOG_ERR, fmt, ap);
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        va_end (ap);
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        abort();
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}
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