X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Futil.c;h=2c7b1f9a56bd4cd7ae0f83619668a49eaeba4cbe;hp=f41861b64eda1db93d0a50cb7cfb710f206027db;hb=71656790d6540f817661cc22b8bc1d33720ce96a;hpb=e9ddabc246ced239cbce436e16792dc4c3d1b52d diff --git a/src/util.c b/src/util.c index f41861b64..2c7b1f9a5 100644 --- a/src/util.c +++ b/src/util.c @@ -495,6 +495,9 @@ int write_one_line_file(const char *fn, const char *line) { goto finish; } + if (!endswith(line, "\n")) + fputc('\n', f); + r = 0; finish: fclose(f); @@ -2979,80 +2982,114 @@ void status_printf(const char *format, ...) { } void status_welcome(void) { + char *pretty_name = NULL, *ansi_color = NULL; + const char *const_pretty = NULL, *const_color = NULL; + int r; -#if defined(TARGET_FEDORA) - char *r; + if ((r = parse_env_file("/etc/os-release", NEWLINE, + "PRETTY_NAME", &pretty_name, + "ANSI_COLOR", &ansi_color, + NULL)) < 0) { - if (read_one_line_file("/etc/system-release", &r) < 0) - return; + if (r != -ENOENT) + log_warning("Failed to read /etc/os-release: %s", strerror(-r)); + } - truncate_nl(r); +#if defined(TARGET_FEDORA) + if (!pretty_name) { + if ((r = read_one_line_file("/etc/system-release", &pretty_name)) < 0) { - /* This tries to mimic the color magic the old Red Hat sysinit - * script did. */ + if (r != -ENOENT) + log_warning("Failed to read /etc/system-release: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - if (startswith(r, "Red Hat")) - status_printf("Welcome to \x1B[0;31m%s\x1B[0m!\n", r); /* Red for RHEL */ - else if (startswith(r, "Fedora")) - status_printf("Welcome to \x1B[0;34m%s\x1B[0m!\n", r); /* Blue for Fedora */ - else - status_printf("Welcome to %s!\n", r); + if (!ansi_color && pretty_name) { - free(r); + /* This tries to mimic the color magic the old Red Hat sysinit + * script did. */ + + if (startswith(pretty_name, "Red Hat")) + const_color = "0;31"; /* Red for RHEL */ + else if (startswith(pretty_name, "Fedora")) + const_color = "0;34"; /* Blue for Fedora */ + } #elif defined(TARGET_SUSE) - char *r; - if (read_one_line_file("/etc/SuSE-release", &r) < 0) - return; + if (!pretty_name) { + if ((r = read_one_line_file("/etc/SuSE-release", &pretty_name)) < 0) { - truncate_nl(r); + if (r != -ENOENT) + log_warning("Failed to read /etc/SuSE-release: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - status_printf("Welcome to \x1B[0;32m%s\x1B[0m!\n", r); /* Green for SUSE */ - free(r); + if (!ansi_color) + const_color = "0;32"; /* Green for openSUSE */ #elif defined(TARGET_GENTOO) - char *r; - if (read_one_line_file("/etc/gentoo-release", &r) < 0) - return; - - truncate_nl(r); + if (!pretty_name) { + if ((r = read_one_line_file("/etc/gentoo-release", &pretty_name)) < 0) { - status_printf("Welcome to \x1B[1;34m%s\x1B[0m!\n", r); /* Light Blue for Gentoo */ + if (r != -ENOENT) + log_warning("Failed to read /etc/gentoo-release: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - free(r); + if (!ansi_color) + const_color = "1;34"; /* Light Blue for Gentoo */ #elif defined(TARGET_DEBIAN) - char *r; - if (read_one_line_file("/etc/debian_version", &r) < 0) - return; + if (!pretty_name) { + char *version; - truncate_nl(r); + if ((r = read_one_line_file("/etc/debian_version", &version)) < 0) { - status_printf("Welcome to Debian \x1B[1;31m%s\x1B[0m!\n", r); /* Light Red for Debian */ + if (r != -ENOENT) + log_warning("Failed to read /etc/debian_version: %s", strerror(-r)); + } else { + truncate_nl(version); + pretty_name = strappend("Debian ", version); + free(version); + + if (!pretty_name) + log_warning("Failed to allocate Debian version string."); + } + } + + if (!ansi_color) + const_color = "1;31"; /* Light Red for Debian */ - free(r); #elif defined(TARGET_UBUNTU) - char *desc = NULL; - char *codename = NULL; - if (parse_env_file("/etc/lsb-release", NEWLINE, - "DISTRIB_DESCRIPTION", &desc, - "DISTRIB_CODENAME", &codename, NULL) < 0) - return; - if (desc && codename) - /* Light Red for Ubuntu */ - status_printf("Welcome to \x1B[1;31m%s\x1B[0m (%s)\n", - desc, codename); - free(desc); - free(codename); -#elif defined(TARGET_ARCH) - status_printf("Welcome to \x1B[1;36mArch Linux\x1B[0m!\n"); /* Cyan for Arch */ -#else -#warning "You probably should add a welcome text logic here." + if ((r = parse_env_file("/etc/lsb-release", NEWLINE, + "DISTRIB_DESCRIPTION", &pretty_name, + NULL)) < 0) { + + if (r != -ENOENT) + log_warning("Failed to read /etc/lsb-release: %s", strerror(-r)); + } + + if (!ansi_color) + const_color = "0;33"; /* Orange/Brown for Ubuntu */ + #endif + + if (!pretty_name && !const_pretty) + const_pretty = "Linux"; + + if (!ansi_color && !const_color) + const_color = "1"; + + status_printf("Welcome to \x1B[%sm%s\x1B[0m!\n", + const_color ? const_color : ansi_color, + const_pretty ? const_pretty : pretty_name); } char *replace_env(const char *format, char **env) { @@ -3342,6 +3379,8 @@ int wait_for_terminate_and_warn(const char *name, pid_t pid) { } void freeze(void) { + sync(); + for (;;) pause(); } @@ -3358,8 +3397,8 @@ bool null_or_empty(struct stat *st) { return false; } -DIR *xopendirat(int fd, const char *name) { - return fdopendir(openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC)); +DIR *xopendirat(int fd, const char *name, int flags) { + return fdopendir(openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|flags)); } int signal_from_string_try_harder(const char *s) { @@ -3373,170 +3412,6 @@ int signal_from_string_try_harder(const char *s) { return signo; } -int ask_password_tty(const char *message, usec_t until, const char *flag_file, char **_passphrase) { - struct termios old_termios, new_termios; - char passphrase[LINE_MAX]; - size_t p = 0; - int r, ttyfd = -1, notify = -1; - struct pollfd pollfd[2]; - bool reset_tty = false; - enum { - POLL_TTY, - POLL_INOTIFY - }; - - assert(message); - assert(_passphrase); - - if (flag_file) { - if ((notify = inotify_init1(IN_CLOEXEC|IN_NONBLOCK)) < 0) { - r = -errno; - goto finish; - } - - if (inotify_add_watch(notify, flag_file, IN_ATTRIB /* for the link count */) < 0) { - r = -errno; - goto finish; - } - } - - if ((ttyfd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC)) >= 0) { - - if (tcgetattr(ttyfd, &old_termios) < 0) { - r = -errno; - goto finish; - } - - loop_write(ttyfd, "\x1B[1m", 4, false); - loop_write(ttyfd, message, strlen(message), false); - loop_write(ttyfd, ": ", 2, false); - loop_write(ttyfd, "\x1B[0m", 4, false); - - new_termios = old_termios; - new_termios.c_lflag &= ~(ICANON|ECHO); - new_termios.c_cc[VMIN] = 1; - new_termios.c_cc[VTIME] = 0; - - if (tcsetattr(ttyfd, TCSADRAIN, &new_termios) < 0) { - r = -errno; - goto finish; - } - - reset_tty = true; - } - - zero(pollfd); - - pollfd[POLL_TTY].fd = ttyfd >= 0 ? ttyfd : STDIN_FILENO; - pollfd[POLL_TTY].events = POLLIN; - pollfd[POLL_INOTIFY].fd = notify; - pollfd[POLL_INOTIFY].events = POLLIN; - - for (;;) { - char c; - int sleep_for = -1, k; - ssize_t n; - - if (until > 0) { - usec_t y; - - y = now(CLOCK_MONOTONIC); - - if (y > until) { - r = -ETIMEDOUT; - goto finish; - } - - sleep_for = (int) ((until - y) / USEC_PER_MSEC); - } - - if (flag_file) - if (access(flag_file, F_OK) < 0) { - r = -errno; - goto finish; - } - - if ((k = poll(pollfd, notify > 0 ? 2 : 1, sleep_for)) < 0) { - - if (errno == EINTR) - continue; - - r = -errno; - goto finish; - } else if (k == 0) { - r = -ETIMEDOUT; - goto finish; - } - - if (notify > 0 && pollfd[POLL_INOTIFY].revents != 0) - flush_fd(notify); - - if (pollfd[POLL_TTY].revents == 0) - continue; - - if ((n = read(ttyfd >= 0 ? ttyfd : STDIN_FILENO, &c, 1)) < 0) { - - if (errno == EINTR || errno == EAGAIN) - continue; - - r = -errno; - goto finish; - - } else if (n == 0) - break; - - if (c == '\n') - break; - else if (c == 21) { - - while (p > 0) { - p--; - - if (ttyfd >= 0) - loop_write(ttyfd, "\b \b", 3, false); - } - - } else if (c == '\b' || c == 127) { - if (p > 0) { - p--; - - if (ttyfd >= 0) - loop_write(ttyfd, "\b \b", 3, false); - } - } else { - passphrase[p++] = c; - - if (ttyfd >= 0) - loop_write(ttyfd, "*", 1, false); - } - } - - if (ttyfd >= 0) - loop_write(ttyfd, "\n", 1, false); - - passphrase[p] = 0; - - if (!(*_passphrase = strdup(passphrase))) { - r = -ENOMEM; - goto finish; - } - - r = 0; - -finish: - if (notify >= 0) - close_nointr_nofail(notify); - - if (ttyfd >= 0) { - if (reset_tty) - tcsetattr(ttyfd, TCSADRAIN, &old_termios); - - close_nointr_nofail(ttyfd); - } - - return r; -} - void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t) { assert(f); @@ -3634,6 +3509,21 @@ void filter_environ(const char *prefix) { environ[j] = NULL; } +const char *default_term_for_tty(const char *tty) { + assert(tty); + + if (startswith(tty, "/dev/")) + tty += 5; + + if (startswith(tty, "tty") && + tty[3] >= '0' && tty[3] <= '9') + return "TERM=linux"; + + /* FIXME: Proper handling of /dev/console would be cool */ + + return "TERM=vt100-nav"; +} + static const char *const ioprio_class_table[] = { [IOPRIO_CLASS_NONE] = "none", [IOPRIO_CLASS_RT] = "realtime",