root/version.c

DEFINITIONS

1. git_user_agent
2. git_user_agent_sanitized

#include "git-compat-util.h"
#include "version.h"
#include "strbuf.h"

const char git_version_string[] = GIT_VERSION;

const char *git_user_agent(void)
{
        static const char *agent = NULL;

        if (!agent) {
                agent = getenv("GIT_USER_AGENT");
                if (!agent)
                        agent = GIT_USER_AGENT;
        }

        return agent;
}

const char *git_user_agent_sanitized(void)
{
        static const char *agent = NULL;

        if (!agent) {
                struct strbuf buf = STRBUF_INIT;
                int i;

                strbuf_addstr(&buf, git_user_agent());
                strbuf_trim(&buf);
                for (i = 0; i < buf.len; i++) {
                        if (buf.buf[i] <= 32 || buf.buf[i] >= 127)
                                buf.buf[i] = '.';
                }
                agent = buf.buf;
        }

        return agent;
}