mirror of https://github.com/mpv-player/mpv
msg: handle vsnprintf errors
I don't know under which circumstances this can error (other than a broken format string). It seems it won't return an error code on I/O errors, so maybe broken format strings are the only case. Either way, don't continue if an error is returned.
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@ -155,7 +155,8 @@ void mp_msg_log_va(struct mp_log *log, int lev, const char *format, va_list va)
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FILE *stream = (mp_msg_stdout_in_use || lev == MSGL_STATUS) ? stderr : stdout;
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char tmp[MSGSIZE_MAX];
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vsnprintf(tmp, MSGSIZE_MAX, format, va);
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if (vsnprintf(tmp, MSGSIZE_MAX, format, va) < 0)
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snprintf(tmp, MSGSIZE_MAX, "[fprintf error]\n");
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tmp[MSGSIZE_MAX - 2] = '\n';
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tmp[MSGSIZE_MAX - 1] = 0;
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