X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Factivate%2Factivate.c;h=d345e285679f397c6814e89a30a70d3e49f69b19;hp=c3309a8485f363d227f822f5f4f70d62fbe5a112;hb=b6e676ce41508e2aeea22202fc8f234126177f52;hpb=73f860db9893deab6aebceb53dd7d0deb662e832 diff --git a/src/activate/activate.c b/src/activate/activate.c index c3309a848..d345e2856 100644 --- a/src/activate/activate.c +++ b/src/activate/activate.c @@ -20,7 +20,6 @@ ***/ #include -#include #include #include #include @@ -51,10 +50,8 @@ static int add_epoll(int epoll_fd, int fd) { ev.data.fd = fd; r = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd, &ev); - if (r < 0) { - log_error("Failed to add event on epoll fd:%d for fd:%d: %m", epoll_fd, fd); - return -errno; - } + if (r < 0) + return log_error_errno(errno, "Failed to add event on epoll fd:%d for fd:%d: %m", epoll_fd, fd); return 0; } @@ -65,11 +62,8 @@ static int open_sockets(int *epoll_fd, bool accept) { int count = 0; n = sd_listen_fds(true); - if (n < 0) { - log_error("Failed to read listening file descriptors from environment: %s", - strerror(-n)); - return n; - } + if (n < 0) + return log_error_errno(n, "Failed to read listening file descriptors from environment: %m"); if (n > 0) { log_info("Received %i descriptors via the environment.", n); @@ -103,8 +97,7 @@ static int open_sockets(int *epoll_fd, bool accept) { fd = make_socket_fd(LOG_DEBUG, *address, SOCK_STREAM | (arg_accept*SOCK_CLOEXEC)); if (fd < 0) { log_open(); - log_error("Failed to open '%s': %s", *address, strerror(-fd)); - return fd; + return log_error_errno(fd, "Failed to open '%s': %m", *address); } assert(fd == SD_LISTEN_FDS_START + count); @@ -115,10 +108,8 @@ static int open_sockets(int *epoll_fd, bool accept) { log_open(); *epoll_fd = epoll_create1(EPOLL_CLOEXEC); - if (*epoll_fd < 0) { - log_error("Failed to create epoll object: %m"); - return -errno; - } + if (*epoll_fd < 0) + return log_error_errno(errno, "Failed to create epoll object: %m"); for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + count; fd++) { _cleanup_free_ char *name = NULL; @@ -179,7 +170,7 @@ static int launch(char* name, char **argv, char **env, int fds) { log_info("Execing %s (%s)", name, tmp); execvpe(name, argv, envp); - log_error("Failed to execp %s (%s): %m", name, tmp); + log_error_errno(errno, "Failed to execp %s (%s): %m", name, tmp); return -errno; } @@ -196,28 +187,26 @@ static int launch1(const char* child, char** argv, char **env, int fd) { parent_pid = getpid(); child_pid = fork(); - if (child_pid < 0) { - log_error("Failed to fork: %m"); - return -errno; - } + if (child_pid < 0) + return log_error_errno(errno, "Failed to fork: %m"); /* In the child */ if (child_pid == 0) { r = dup2(fd, STDIN_FILENO); if (r < 0) { - log_error("Failed to dup connection to stdin: %m"); + log_error_errno(errno, "Failed to dup connection to stdin: %m"); _exit(EXIT_FAILURE); } r = dup2(fd, STDOUT_FILENO); if (r < 0) { - log_error("Failed to dup connection to stdout: %m"); + log_error_errno(errno, "Failed to dup connection to stdout: %m"); _exit(EXIT_FAILURE); } r = close(fd); if (r < 0) { - log_error("Failed to close dupped connection: %m"); + log_error_errno(errno, "Failed to close dupped connection: %m"); _exit(EXIT_FAILURE); } @@ -231,7 +220,7 @@ static int launch1(const char* child, char** argv, char **env, int fd) { _exit(EXIT_SUCCESS); execvp(child, argv); - log_error("Failed to exec child %s: %m", child); + log_error_errno(errno, "Failed to exec child %s: %m", child); _exit(EXIT_FAILURE); } @@ -242,11 +231,11 @@ static int launch1(const char* child, char** argv, char **env, int fd) { static int do_accept(const char* name, char **argv, char **envp, int fd) { _cleanup_free_ char *local = NULL, *peer = NULL; - int fd2; + _cleanup_close_ int fd2 = -1; fd2 = accept(fd, NULL, NULL); if (fd2 < 0) { - log_error("Failed to accept connection on fd:%d: %m", fd); + log_error_errno(errno, "Failed to accept connection on fd:%d: %m", fd); return fd2; } @@ -275,11 +264,11 @@ static int install_chld_handler(void) { r = sigaction(SIGCHLD, &act, 0); if (r < 0) - log_error("Failed to install SIGCHLD handler: %m"); + log_error_errno(errno, "Failed to install SIGCHLD handler: %m"); return r; } -static int help(void) { +static void help(void) { printf("%s [OPTIONS...]\n\n" "Listen on sockets and launch child on connection.\n\n" "Options:\n" @@ -290,10 +279,7 @@ static int help(void) { " --version Print version string and exit\n" "\n" "Note: file descriptors from sd_listen_fds() will be passed through.\n" - , program_invocation_short_name - ); - - return 0; + , program_invocation_short_name); } static int parse_argv(int argc, char *argv[]) { @@ -319,7 +305,8 @@ static int parse_argv(int argc, char *argv[]) { while ((c = getopt_long(argc, argv, "+hl:aE:", options, NULL)) >= 0) switch(c) { case 'h': - return help(); + help(); + return 0; case ARG_VERSION: puts(PACKAGE_STRING); @@ -354,7 +341,7 @@ static int parse_argv(int argc, char *argv[]) { } if (optind == argc) { - log_error("Usage: %s [OPTION...] PROGRAM [OPTION...]", + log_error("%s: command to execute is missing.", program_invocation_short_name); return -EINVAL; } @@ -395,7 +382,7 @@ int main(int argc, char **argv, char **envp) { if (errno == EINTR) continue; - log_error("epoll_wait() failed: %m"); + log_error_errno(errno, "epoll_wait() failed: %m"); return EXIT_FAILURE; }