comparison contrib/chg/chg.c @ 28789:7f6e0a15189b

chg: replace abortmsg showing errno with abortmsgerrno

Since we have abortmsgerrno now, use it to show human friendly error messages
across platforms.

28788:57a78a64de44

static void preparesockdir(const char *sockdir)
{
	int r;
	r = mkdir(sockdir, 0700);
	if (r < 0 && errno != EEXIST)
		abortmsg("cannot create sockdir %s (errno = %d)",
			 sockdir, errno);

	struct stat st;
	r = lstat(sockdir, &st);
	if (r < 0)
		abortmsg("cannot stat %s (errno = %d)", sockdir, errno);
	if (!S_ISDIR(st.st_mode))
		abortmsg("cannot create sockdir %s (file exists)", sockdir);
	if (st.st_uid != geteuid() || st.st_mode & 0077)
		abortmsg("insecure sockdir %s", sockdir);
}

static void lockcmdserver(struct cmdserveropts *opts)
{
	if (opts->lockfd == -1) {
		opts->lockfd = open(opts->lockfile, O_RDWR | O_CREAT | O_NOFOLLOW, 0600);
		if (opts->lockfd == -1)
			abortmsg("cannot create lock file %s", opts->lockfile);
	}
	int r = flock(opts->lockfd, LOCK_EX);
	if (r == -1)
		abortmsg("cannot acquire lock");
}

/*
 * Release the file lock held by calling lockcmdserver. Will do nothing if
 * lockcmdserver is not called.

	memcpy(argv, baseargv, sizeof(baseargv));
	memcpy(argv + baseargvsize, opts->args, sizeof(char *) * opts->argsize);
	argv[argsize - 1] = NULL;

	if (putenv("CHGINTERNALMARK=") != 0)
		abortmsg("failed to putenv (errno = %d)", errno);
	if (execvp(hgcmd, (char **)argv) < 0)
		abortmsg("failed to exec cmdserver (errno = %d)", errno);
	free(argv);
}

/* Retry until we can connect to the server. Give up after some time. */
static hgclient_t *retryconnectcmdserver(struct cmdserveropts *opts, pid_t pid)

static void forwardsignal(int sig)
{
	assert(peerpid > 0);
	if (kill(peerpid, sig) < 0)
		abortmsg("cannot kill %d (errno = %d)", peerpid, errno);
	debugmsg("forward signal %d", sig);
}

static void handlestopsignal(int sig)
{

	if (sigaction(sig, &oldsa, NULL) < 0)
		goto error;
	return;

error:
	abortmsg("failed to handle stop signal (errno = %d)", errno);
}

static void setupsignalhandler(pid_t pid)
{
	if (pid <= 0)

		goto error;

	return;

error:
	abortmsg("failed to set up signal handlers (errno = %d)", errno);
}

/* This implementation is based on hgext/pager.py (pre 369741ef7253) */
static void setuppager(hgclient_t *hgc, const char *const args[],
		       size_t argsize)

		close(pipefds[0]);
		close(pipefds[1]);

		int r = execlp("/bin/sh", "/bin/sh", "-c", pagercmd, NULL);
		if (r < 0) {
			abortmsg("cannot start pager '%s' (errno = %d)",
				 pagercmd, errno);
		}
		return;
	}

error:
	close(pipefds[0]);
	close(pipefds[1]);
	abortmsg("failed to prepare pager (errno = %d)", errno);
}

/* Run instructions sent from the server like unlink and set redirect path
 * Return 1 if reconnect is needed, otherwise 0 */
static int runinstructions(struct cmdserveropts *opts, const char **insts)

static void execoriginalhg(const char *argv[])
{
	debugmsg("execute original hg");
	if (execvp(gethgcmd(), (char **)argv) < 0)
		abortmsg("failed to exec original hg (errno = %d)", errno);
}

int main(int argc, const char *argv[], const char *envp[])
{
	if (getenv("CHGDEBUG"))

28789:7f6e0a15189b

static void preparesockdir(const char *sockdir)
{
	int r;
	r = mkdir(sockdir, 0700);
	if (r < 0 && errno != EEXIST)
		abortmsgerrno("cannot create sockdir %s", sockdir);

	struct stat st;
	r = lstat(sockdir, &st);
	if (r < 0)
		abortmsgerrno("cannot stat %s", sockdir);
	if (!S_ISDIR(st.st_mode))
		abortmsg("cannot create sockdir %s (file exists)", sockdir);
	if (st.st_uid != geteuid() || st.st_mode & 0077)
		abortmsg("insecure sockdir %s", sockdir);
}

static void lockcmdserver(struct cmdserveropts *opts)
{
	if (opts->lockfd == -1) {
		opts->lockfd = open(opts->lockfile, O_RDWR | O_CREAT | O_NOFOLLOW, 0600);
		if (opts->lockfd == -1)
			abortmsgerrno("cannot create lock file %s",
				      opts->lockfile);
	}
	int r = flock(opts->lockfd, LOCK_EX);
	if (r == -1)
		abortmsgerrno("cannot acquire lock");
}

/*
 * Release the file lock held by calling lockcmdserver. Will do nothing if
 * lockcmdserver is not called.

	memcpy(argv, baseargv, sizeof(baseargv));
	memcpy(argv + baseargvsize, opts->args, sizeof(char *) * opts->argsize);
	argv[argsize - 1] = NULL;

	if (putenv("CHGINTERNALMARK=") != 0)
		abortmsgerrno("failed to putenv");
	if (execvp(hgcmd, (char **)argv) < 0)
		abortmsgerrno("failed to exec cmdserver");
	free(argv);
}

/* Retry until we can connect to the server. Give up after some time. */
static hgclient_t *retryconnectcmdserver(struct cmdserveropts *opts, pid_t pid)

static void forwardsignal(int sig)
{
	assert(peerpid > 0);
	if (kill(peerpid, sig) < 0)
		abortmsgerrno("cannot kill %d", peerpid);
	debugmsg("forward signal %d", sig);
}

static void handlestopsignal(int sig)
{

	if (sigaction(sig, &oldsa, NULL) < 0)
		goto error;
	return;

error:
	abortmsgerrno("failed to handle stop signal");
}

static void setupsignalhandler(pid_t pid)
{
	if (pid <= 0)

		goto error;

	return;

error:
	abortmsgerrno("failed to set up signal handlers");
}

/* This implementation is based on hgext/pager.py (pre 369741ef7253) */
static void setuppager(hgclient_t *hgc, const char *const args[],
		       size_t argsize)

		close(pipefds[0]);
		close(pipefds[1]);

		int r = execlp("/bin/sh", "/bin/sh", "-c", pagercmd, NULL);
		if (r < 0) {
			abortmsgerrno("cannot start pager '%s'", pagercmd);
		}
		return;
	}

error:
	close(pipefds[0]);
	close(pipefds[1]);
	abortmsgerrno("failed to prepare pager");
}

/* Run instructions sent from the server like unlink and set redirect path
 * Return 1 if reconnect is needed, otherwise 0 */
static int runinstructions(struct cmdserveropts *opts, const char **insts)

static void execoriginalhg(const char *argv[])
{
	debugmsg("execute original hg");
	if (execvp(gethgcmd(), (char **)argv) < 0)
		abortmsgerrno("failed to exec original hg");
}

int main(int argc, const char *argv[], const char *envp[])
{
	if (getenv("CHGDEBUG"))