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alsactl: redirect alsa-lib errors

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2020-05-14 19:09:45 +02:00
parent 4bea8fe3a7
commit 8fb4016a17
3 changed files with 19 additions and 0 deletions
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2
alsactl/alsactl.c
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@ -354,6 +354,8 @@ int main(int argc, char *argv[])
syslog(LOG_INFO, "alsactl " SND_UTIL_VERSION_STR " daemon started");
}
snd_lib_error_set_handler(error_handler);
if (!strcmp(cmd, "init")) {
res = init(initfile, cardname);
snd_config_update_free_global();

1
alsactl/alsactl.h
View file

@ -11,6 +11,7 @@ void info_(const char *fcn, long line, const char *fmt, ...);
void error_(const char *fcn, long line, const char *fmt, ...);
void cerror_(const char *fcn, long line, int cond, const char *fmt, ...);
void dbg_(const char *fcn, long line, const char *fmt, ...);
void error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...);
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define info(...) do { info_(__func__, __LINE__, __VA_ARGS__); } while (0)

16
alsactl/utils.c
View file

@ -177,3 +177,19 @@ void dbg_(const char *fcn, long line, const char *fmt, ...)
}
va_end(ap);
}
void error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...)
{
char buf[2048];
va_list arg;
va_start(arg, fmt);
vsnprintf(buf, sizeof(buf), fmt, arg);
va_end(arg);
if (use_syslog)
syslog(LOG_ERR, "alsa-lib %s:%i:(%s) %s%s%s\n", file, line, function,
buf, err ? ": " : "", err ? snd_strerror(err) : "");
else
fprintf(stderr, "alsa-lib %s:%i:(%s) %s%s%s\n", file, line, function,
buf, err ? ": " : "", err ? snd_strerror(err) : "");
}