X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Futil.c;h=9a82c71dcb249b1e268f8959385fecbc05782f59;hp=c1ee936aaf97d7166d26bc9dcb863d5243f8abc2;hb=ade509ce73ba1de3bcda8b012961a3045f721df7;hpb=e7db37dd19d540e9ac8b89c689914d44d15433c4

diff --git a/src/util.c b/src/util.c
index c1ee936aa..9a82c71dc 100644
--- a/src/util.c
+++ b/src/util.c
@@ -600,13 +600,13 @@ finish:
 
 int parse_env_file(
                 const char *fname,
-                const char *seperator, ...) {
+                const char *separator, ...) {
 
-        int r;
+        int r = 0;
         char *contents, *p;
 
         assert(fname);
-        assert(seperator);
+        assert(separator);
 
         if ((r = read_full_file(fname, &contents)) < 0)
                 return r;
@@ -615,7 +615,7 @@ int parse_env_file(
         for (;;) {
                 const char *key = NULL;
 
-                p += strspn(p, seperator);
+                p += strspn(p, separator);
                 p += strspn(p, WHITESPACE);
 
                 if (!*p)
@@ -625,7 +625,7 @@ int parse_env_file(
                         va_list ap;
                         char **value;
 
-                        va_start(ap, seperator);
+                        va_start(ap, separator);
                         while ((key = va_arg(ap, char *))) {
                                 size_t n;
                                 char *v;
@@ -638,7 +638,7 @@ int parse_env_file(
                                         continue;
 
                                 p += n + 1;
-                                n = strcspn(p, seperator);
+                                n = strcspn(p, separator);
 
                                 if (n >= 2 &&
                                     strchr(QUOTES, p[0]) &&
@@ -653,21 +653,27 @@ int parse_env_file(
                                         goto fail;
                                 }
 
+                                if (v[0] == '\0') {
+                                        /* return empty value strings as NULL */
+                                        free(v);
+                                        v = NULL;
+                                }
+
                                 free(*value);
                                 *value = v;
 
                                 p += n;
+
+                                r ++;
                                 break;
                         }
                         va_end(ap);
                 }
 
                 if (!key)
-                        p += strcspn(p, seperator);
+                        p += strcspn(p, separator);
         }
 
-        r = 0;
-
 fail:
         free(contents);
         return r;
@@ -1675,6 +1681,8 @@ bool ignore_file(const char *filename) {
         return
                 filename[0] == '.' ||
                 streq(filename, "lost+found") ||
+                streq(filename, "aquota.user") ||
+                streq(filename, "aquota.group") ||
                 endswith(filename, "~") ||
                 endswith(filename, ".rpmnew") ||
                 endswith(filename, ".rpmsave") ||
@@ -2009,23 +2017,29 @@ int read_one_char(FILE *f, char *ret, bool *need_nl) {
 }
 
 int ask(char *ret, const char *replies, const char *text, ...) {
+        bool on_tty;
+
         assert(ret);
         assert(replies);
         assert(text);
 
+        on_tty = isatty(STDOUT_FILENO);
+
         for (;;) {
                 va_list ap;
                 char c;
                 int r;
                 bool need_nl = true;
 
-                fputs("\x1B[1m", stdout);
+                if (on_tty)
+                        fputs("\x1B[1m", stdout);
 
                 va_start(ap, text);
                 vprintf(text, ap);
                 va_end(ap);
 
-                fputs("\x1B[0m", stdout);
+                if (on_tty)
+                        fputs("\x1B[0m", stdout);
 
                 fflush(stdout);
 
@@ -2235,26 +2249,34 @@ int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocst
                 assert(notify >= 0);
 
                 for (;;) {
-                        struct inotify_event e;
+                        uint8_t inotify_buffer[sizeof(struct inotify_event) + FILENAME_MAX];
                         ssize_t l;
+                        struct inotify_event *e;
+
+                        if ((l = read(notify, &inotify_buffer, sizeof(inotify_buffer))) < 0) {
 
-                        if ((l = read(notify, &e, sizeof(e))) != sizeof(e)) {
+                                if (errno == EINTR)
+                                        continue;
 
-                                if (l < 0) {
+                                r = -errno;
+                                goto fail;
+                        }
 
-                                        if (errno == EINTR)
-                                                continue;
+                        e = (struct inotify_event*) inotify_buffer;
+
+                        while (l > 0) {
+                                size_t step;
 
-                                        r = -errno;
-                                } else
+                                if (e->wd != wd || !(e->mask & IN_CLOSE)) {
                                         r = -EIO;
+                                        goto fail;
+                                }
 
-                                goto fail;
-                        }
+                                step = sizeof(struct inotify_event) + e->len;
+                                assert(step <= (size_t) l);
 
-                        if (e.wd != wd || !(e.mask & IN_CLOSE)) {
-                                r = -EIO;
-                                goto fail;
+                                e = (struct inotify_event*) ((uint8_t*) e + step);
+                                l -= step;
                         }
 
                         break;
@@ -2583,6 +2605,15 @@ int make_stdio(int fd) {
         return 0;
 }
 
+int make_null_stdio(void) {
+        int null_fd;
+
+        if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0)
+                return -errno;
+
+        return make_stdio(null_fd);
+}
+
 bool is_clean_exit(int code, int status) {
 
         if (code == CLD_EXITED)
@@ -3003,6 +3034,20 @@ void status_welcome(void) {
         status_printf("Welcome to Debian \x1B[1;31m%s\x1B[0m!\n", r); /* 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
@@ -3296,6 +3341,232 @@ int wait_for_terminate_and_warn(const char *name, pid_t pid) {
 
 }
 
+void freeze(void) {
+        for (;;)
+                pause();
+}
+
+bool null_or_empty(struct stat *st) {
+        assert(st);
+
+        if (S_ISREG(st->st_mode) && st->st_size <= 0)
+                return true;
+
+        if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
+                return true;
+
+        return false;
+}
+
+DIR *xopendirat(int fd, const char *name) {
+        return fdopendir(openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC));
+}
+
+int signal_from_string_try_harder(const char *s) {
+        int signo;
+        assert(s);
+
+        if ((signo = signal_from_string(s)) <= 0)
+                if (startswith(s, "SIG"))
+                        return signal_from_string(s+3);
+
+        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);
+        assert(name);
+        assert(t);
+
+        if (!dual_timestamp_is_set(t))
+                return;
+
+        fprintf(f, "%s=%llu %llu\n",
+                name,
+                (unsigned long long) t->realtime,
+                (unsigned long long) t->monotonic);
+}
+
+void dual_timestamp_deserialize(FILE *f, const char *value, dual_timestamp *t) {
+        unsigned long long a, b;
+
+        assert(f);
+        assert(value);
+        assert(t);
+
+        if (sscanf(value, "%lli %llu", &a, &b) != 2)
+                log_debug("Failed to parse finish timestamp value %s", value);
+        else {
+                t->realtime = a;
+                t->monotonic = b;
+        }
+}
+
 static const char *const ioprio_class_table[] = {
         [IOPRIO_CLASS_NONE] = "none",
         [IOPRIO_CLASS_RT] = "realtime",