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/*
* Cmdline error reporting.
*
* Copyright (c) 2009 Marko Kreen
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <usual/err.h>
#include <usual/string.h>
#ifndef HAVE_SETPROGNAME
static const char *progname;
#endif
#ifndef HAVE_ERR
void err(int e, const char *fmt, ...)
{
char buf[1024], ebuf[256];
va_list ap;
int olderrno = errno;
if (fmt) {
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
errx(e, "%s: %s", buf, strerror_r(olderrno, ebuf, sizeof(ebuf)));
} else {
errx(e, "%s", strerror_r(olderrno, ebuf, sizeof(ebuf)));
}
}
#endif
#ifndef HAVE_ERRX
void errx(int e, const char *fmt, ...)
{
va_list ap;
if (progname)
fprintf(stderr, "%s: ", progname);
if (fmt) {
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
fprintf(stderr, "\n");
exit(e);
}
#endif
#ifndef HAVE_WARN
void warn(const char *fmt, ...)
{
char buf[1024], ebuf[256];
va_list ap;
int olderrno = errno;
if (fmt) {
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
warnx("%s: %s", buf, strerror_r(olderrno, ebuf, sizeof(ebuf)));
} else {
warnx("%s", strerror_r(olderrno, ebuf, sizeof(ebuf)));
}
}
#endif
#ifndef HAVE_WARNX
void warnx(const char *fmt, ...)
{
va_list ap;
if (progname)
fprintf(stderr, "%s: ", progname);
if (fmt) {
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
}
#endif
#ifndef HAVE_SETPROGNAME
void setprogname(const char *s)
{
const char *ss = strrchr(s, '/');
progname = ss ? (ss + 1) : s;
}
#endif
#ifndef HAVE_GETPROGNAME
const char *getprogname(void)
{
return progname;
}
#endif
void *xmalloc(size_t len)
{
void *p = malloc(len);
if (!p)
err(1, "no mem");
return p;
}
void *xrealloc(void *p, size_t len)
{
void *p2 = realloc(p, len);
if (!p2)
err(1, "no mem");
return p2;
}
char *xstrdup(const char *s)
{
void *s2 = strdup(s);
if (!s2)
err(1, "no mem");
return s2;
}
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