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62d94b00f8
To consolidate the error reporting facility. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-b41iot1094katoffdf19w9zk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
47 lines
940 B
C
47 lines
940 B
C
/*
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* usage.c
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*
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* Various reporting routines.
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* Originally copied from GIT source.
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "util.h"
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#include "debug.h"
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static void report(const char *prefix, const char *err, va_list params)
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{
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char msg[1024];
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vsnprintf(msg, sizeof(msg), err, params);
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fprintf(stderr, " %s%s\n", prefix, msg);
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}
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static __noreturn void usage_builtin(const char *err)
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{
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fprintf(stderr, "\n Usage: %s\n", err);
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exit(129);
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}
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static __noreturn void die_builtin(const char *err, va_list params)
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{
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report(" Fatal: ", err, params);
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exit(128);
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}
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/* If we are in a dlopen()ed .so write to a global variable would segfault
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* (ugh), so keep things static. */
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static void (*usage_routine)(const char *err) __noreturn = usage_builtin;
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void usage(const char *err)
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{
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usage_routine(err);
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}
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void die(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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die_builtin(err, params);
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va_end(params);
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}
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