build-sys: split internal basic/ library from shared/

basic/      can be used by everything
            cannot use anything outside of basic/

libsystemd/ can use basic/
            cannot use shared/

shared/     can use libsystemd/

1 files changed, 0 insertions, 817 deletions

diff --git a/src/shared/fileio.c b/src/shared/fileio.c
deleted file mode 100644
index ff6b1a7ed7..0000000000
--- a/src/shared/fileio.c
+++ /dev/null
@@ -1,817 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <unistd.h>
-
-#include "util.h"
-#include "strv.h"
-#include "utf8.h"
-#include "ctype.h"
-#include "fileio.h"
-
-int write_string_stream(FILE *f, const char *line) {
-        assert(f);
-        assert(line);
-
-        errno = 0;
-
-        fputs(line, f);
-        if (!endswith(line, "\n"))
-                fputc('\n', f);
-
-        fflush(f);
-
-        if (ferror(f))
-                return errno ? -errno : -EIO;
-
-        return 0;
-}
-
-int write_string_file(const char *fn, const char *line) {
-        _cleanup_fclose_ FILE *f = NULL;
-
-        assert(fn);
-        assert(line);
-
-        f = fopen(fn, "we");
-        if (!f)
-                return -errno;
-
-        return write_string_stream(f, line);
-}
-
-int write_string_file_no_create(const char *fn, const char *line) {
-        _cleanup_fclose_ FILE *f = NULL;
-        int fd;
-
-        assert(fn);
-        assert(line);
-
-        /* We manually build our own version of fopen(..., "we") that
-         * works without O_CREAT */
-        fd = open(fn, O_WRONLY|O_CLOEXEC|O_NOCTTY);
-        if (fd < 0)
-                return -errno;
-
-        f = fdopen(fd, "we");
-        if (!f) {
-                safe_close(fd);
-                return -errno;
-        }
-
-        return write_string_stream(f, line);
-}
-
-int write_string_file_atomic(const char *fn, const char *line) {
-        _cleanup_fclose_ FILE *f = NULL;
-        _cleanup_free_ char *p = NULL;
-        int r;
-
-        assert(fn);
-        assert(line);
-
-        r = fopen_temporary(fn, &f, &p);
-        if (r < 0)
-                return r;
-
-        fchmod_umask(fileno(f), 0644);
-
-        r = write_string_stream(f, line);
-        if (r >= 0) {
-                if (rename(p, fn) < 0)
-                        r = -errno;
-        }
-
-        if (r < 0)
-                unlink(p);
-
-        return r;
-}
-
-int read_one_line_file(const char *fn, char **line) {
-        _cleanup_fclose_ FILE *f = NULL;
-        char t[LINE_MAX], *c;
-
-        assert(fn);
-        assert(line);
-
-        f = fopen(fn, "re");
-        if (!f)
-                return -errno;
-
-        if (!fgets(t, sizeof(t), f)) {
-
-                if (ferror(f))
-                        return errno ? -errno : -EIO;
-
-                t[0] = 0;
-        }
-
-        c = strdup(t);
-        if (!c)
-                return -ENOMEM;
-        truncate_nl(c);
-
-        *line = c;
-        return 0;
-}
-
-int read_full_stream(FILE *f, char **contents, size_t *size) {
-        size_t n, l;
-        _cleanup_free_ char *buf = NULL;
-        struct stat st;
-
-        assert(f);
-        assert(contents);
-
-        if (fstat(fileno(f), &st) < 0)
-                return -errno;
-
-        n = LINE_MAX;
-
-        if (S_ISREG(st.st_mode)) {
-
-                /* Safety check */
-                if (st.st_size > 4*1024*1024)
-                        return -E2BIG;
-
-                /* Start with the right file size, but be prepared for
-                 * files from /proc which generally report a file size
-                 * of 0 */
-                if (st.st_size > 0)
-                        n = st.st_size;
-        }
-
-        l = 0;
-        for (;;) {
-                char *t;
-                size_t k;
-
-                t = realloc(buf, n+1);
-                if (!t)
-                        return -ENOMEM;
-
-                buf = t;
-                k = fread(buf + l, 1, n - l, f);
-
-                if (k <= 0) {
-                        if (ferror(f))
-                                return -errno;
-
-                        break;
-                }
-
-                l += k;
-                n *= 2;
-
-                /* Safety check */
-                if (n > 4*1024*1024)
-                        return -E2BIG;
-        }
-
-        buf[l] = 0;
-        *contents = buf;
-        buf = NULL; /* do not free */
-
-        if (size)
-                *size = l;
-
-        return 0;
-}
-
-int read_full_file(const char *fn, char **contents, size_t *size) {
-        _cleanup_fclose_ FILE *f = NULL;
-
-        assert(fn);
-        assert(contents);
-
-        f = fopen(fn, "re");
-        if (!f)
-                return -errno;
-
-        return read_full_stream(f, contents, size);
-}
-
-static int parse_env_file_internal(
-                FILE *f,
-                const char *fname,
-                const char *newline,
-                int (*push) (const char *filename, unsigned line,
-                             const char *key, char *value, void *userdata, int *n_pushed),
-                void *userdata,
-                int *n_pushed) {
-
-        _cleanup_free_ char *contents = NULL, *key = NULL;
-        size_t key_alloc = 0, n_key = 0, value_alloc = 0, n_value = 0, last_value_whitespace = (size_t) -1, last_key_whitespace = (size_t) -1;
-        char *p, *value = NULL;
-        int r;
-        unsigned line = 1;
-
-        enum {
-                PRE_KEY,
-                KEY,
-                PRE_VALUE,
-                VALUE,
-                VALUE_ESCAPE,
-                SINGLE_QUOTE_VALUE,
-                SINGLE_QUOTE_VALUE_ESCAPE,
-                DOUBLE_QUOTE_VALUE,
-                DOUBLE_QUOTE_VALUE_ESCAPE,
-                COMMENT,
-                COMMENT_ESCAPE
-        } state = PRE_KEY;
-
-        assert(newline);
-
-        if (f)
-                r = read_full_stream(f, &contents, NULL);
-        else
-                r = read_full_file(fname, &contents, NULL);
-        if (r < 0)
-                return r;
-
-        for (p = contents; *p; p++) {
-                char c = *p;
-
-                switch (state) {
-
-                case PRE_KEY:
-                        if (strchr(COMMENTS, c))
-                                state = COMMENT;
-                        else if (!strchr(WHITESPACE, c)) {
-                                state = KEY;
-                                last_key_whitespace = (size_t) -1;
-
-                                if (!GREEDY_REALLOC(key, key_alloc, n_key+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                key[n_key++] = c;
-                        }
-                        break;
-
-                case KEY:
-                        if (strchr(newline, c)) {
-                                state = PRE_KEY;
-                                line ++;
-                                n_key = 0;
-                        } else if (c == '=') {
-                                state = PRE_VALUE;
-                                last_value_whitespace = (size_t) -1;
-                        } else {
-                                if (!strchr(WHITESPACE, c))
-                                        last_key_whitespace = (size_t) -1;
-                                else if (last_key_whitespace == (size_t) -1)
-                                         last_key_whitespace = n_key;
-
-                                if (!GREEDY_REALLOC(key, key_alloc, n_key+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                key[n_key++] = c;
-                        }
-
-                        break;
-
-                case PRE_VALUE:
-                        if (strchr(newline, c)) {
-                                state = PRE_KEY;
-                                line ++;
-                                key[n_key] = 0;
-
-                                if (value)
-                                        value[n_value] = 0;
-
-                                /* strip trailing whitespace from key */
-                                if (last_key_whitespace != (size_t) -1)
-                                        key[last_key_whitespace] = 0;
-
-                                r = push(fname, line, key, value, userdata, n_pushed);
-                                if (r < 0)
-                                        goto fail;
-
-                                n_key = 0;
-                                value = NULL;
-                                value_alloc = n_value = 0;
-
-                        } else if (c == '\'')
-                                state = SINGLE_QUOTE_VALUE;
-                        else if (c == '\"')
-                                state = DOUBLE_QUOTE_VALUE;
-                        else if (c == '\\')
-                                state = VALUE_ESCAPE;
-                        else if (!strchr(WHITESPACE, c)) {
-                                state = VALUE;
-
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-
-                        break;
-
-                case VALUE:
-                        if (strchr(newline, c)) {
-                                state = PRE_KEY;
-                                line ++;
-
-                                key[n_key] = 0;
-
-                                if (value)
-                                        value[n_value] = 0;
-
-                                /* Chomp off trailing whitespace from value */
-                                if (last_value_whitespace != (size_t) -1)
-                                        value[last_value_whitespace] = 0;
-
-                                /* strip trailing whitespace from key */
-                                if (last_key_whitespace != (size_t) -1)
-                                        key[last_key_whitespace] = 0;
-
-                                r = push(fname, line, key, value, userdata, n_pushed);
-                                if (r < 0)
-                                        goto fail;
-
-                                n_key = 0;
-                                value = NULL;
-                                value_alloc = n_value = 0;
-
-                        } else if (c == '\\') {
-                                state = VALUE_ESCAPE;
-                                last_value_whitespace = (size_t) -1;
-                        } else {
-                                if (!strchr(WHITESPACE, c))
-                                        last_value_whitespace = (size_t) -1;
-                                else if (last_value_whitespace == (size_t) -1)
-                                        last_value_whitespace = n_value;
-
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-
-                        break;
-
-                case VALUE_ESCAPE:
-                        state = VALUE;
-
-                        if (!strchr(newline, c)) {
-                                /* Escaped newlines we eat up entirely */
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-                        break;
-
-                case SINGLE_QUOTE_VALUE:
-                        if (c == '\'')
-                                state = PRE_VALUE;
-                        else if (c == '\\')
-                                state = SINGLE_QUOTE_VALUE_ESCAPE;
-                        else {
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-
-                        break;
-
-                case SINGLE_QUOTE_VALUE_ESCAPE:
-                        state = SINGLE_QUOTE_VALUE;
-
-                        if (!strchr(newline, c)) {
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-                        break;
-
-                case DOUBLE_QUOTE_VALUE:
-                        if (c == '\"')
-                                state = PRE_VALUE;
-                        else if (c == '\\')
-                                state = DOUBLE_QUOTE_VALUE_ESCAPE;
-                        else {
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-
-                        break;
-
-                case DOUBLE_QUOTE_VALUE_ESCAPE:
-                        state = DOUBLE_QUOTE_VALUE;
-
-                        if (!strchr(newline, c)) {
-                                if (!GREEDY_REALLOC(value, value_alloc, n_value+2)) {
-                                        r = -ENOMEM;
-                                        goto fail;
-                                }
-
-                                value[n_value++] = c;
-                        }
-                        break;
-
-                case COMMENT:
-                        if (c == '\\')
-                                state = COMMENT_ESCAPE;
-                        else if (strchr(newline, c)) {
-                                state = PRE_KEY;
-                                line ++;
-                        }
-                        break;
-
-                case COMMENT_ESCAPE:
-                        state = COMMENT;
-                        break;
-                }
-        }
-
-        if (state == PRE_VALUE ||
-            state == VALUE ||
-            state == VALUE_ESCAPE ||
-            state == SINGLE_QUOTE_VALUE ||
-            state == SINGLE_QUOTE_VALUE_ESCAPE ||
-            state == DOUBLE_QUOTE_VALUE ||
-            state == DOUBLE_QUOTE_VALUE_ESCAPE) {
-
-                key[n_key] = 0;
-
-                if (value)
-                        value[n_value] = 0;
-
-                if (state == VALUE)
-                        if (last_value_whitespace != (size_t) -1)
-                                value[last_value_whitespace] = 0;
-
-                /* strip trailing whitespace from key */
-                if (last_key_whitespace != (size_t) -1)
-                        key[last_key_whitespace] = 0;
-
-                r = push(fname, line, key, value, userdata, n_pushed);
-                if (r < 0)
-                        goto fail;
-        }
-
-        return 0;
-
-fail:
-        free(value);
-        return r;
-}
-
-static int parse_env_file_push(
-                const char *filename, unsigned line,
-                const char *key, char *value,
-                void *userdata,
-                int *n_pushed) {
-
-        const char *k;
-        va_list aq, *ap = userdata;
-
-        if (!utf8_is_valid(key)) {
-                _cleanup_free_ char *p;
-
-                p = utf8_escape_invalid(key);
-                log_error("%s:%u: invalid UTF-8 in key '%s', ignoring.", strna(filename), line, p);
-                return -EINVAL;
-        }
-
-        if (value && !utf8_is_valid(value)) {
-                _cleanup_free_ char *p;
-
-                p = utf8_escape_invalid(value);
-                log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.", strna(filename), line, key, p);
-                return -EINVAL;
-        }
-
-        va_copy(aq, *ap);
-
-        while ((k = va_arg(aq, const char *))) {
-                char **v;
-
-                v = va_arg(aq, char **);
-
-                if (streq(key, k)) {
-                        va_end(aq);
-                        free(*v);
-                        *v = value;
-
-                        if (n_pushed)
-                                (*n_pushed)++;
-
-                        return 1;
-                }
-        }
-
-        va_end(aq);
-        free(value);
-
-        return 0;
-}
-
-int parse_env_file(
-                const char *fname,
-                const char *newline, ...) {
-
-        va_list ap;
-        int r, n_pushed = 0;
-
-        if (!newline)
-                newline = NEWLINE;
-
-        va_start(ap, newline);
-        r = parse_env_file_internal(NULL, fname, newline, parse_env_file_push, &ap, &n_pushed);
-        va_end(ap);
-
-        return r < 0 ? r : n_pushed;
-}
-
-static int load_env_file_push(
-                const char *filename, unsigned line,
-                const char *key, char *value,
-                void *userdata,
-                int *n_pushed) {
-        char ***m = userdata;
-        char *p;
-        int r;
-
-        if (!utf8_is_valid(key)) {
-                _cleanup_free_ char *t = utf8_escape_invalid(key);
-
-                log_error("%s:%u: invalid UTF-8 for key '%s', ignoring.", strna(filename), line, t);
-                return -EINVAL;
-        }
-
-        if (value && !utf8_is_valid(value)) {
-                _cleanup_free_ char *t = utf8_escape_invalid(value);
-
-                log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.", strna(filename), line, key, t);
-                return -EINVAL;
-        }
-
-        p = strjoin(key, "=", strempty(value), NULL);
-        if (!p)
-                return -ENOMEM;
-
-        r = strv_consume(m, p);
-        if (r < 0)
-                return r;
-
-        if (n_pushed)
-                (*n_pushed)++;
-
-        free(value);
-        return 0;
-}
-
-int load_env_file(FILE *f, const char *fname, const char *newline, char ***rl) {
-        char **m = NULL;
-        int r;
-
-        if (!newline)
-                newline = NEWLINE;
-
-        r = parse_env_file_internal(f, fname, newline, load_env_file_push, &m, NULL);
-        if (r < 0) {
-                strv_free(m);
-                return r;
-        }
-
-        *rl = m;
-        return 0;
-}
-
-static int load_env_file_push_pairs(
-                const char *filename, unsigned line,
-                const char *key, char *value,
-                void *userdata,
-                int *n_pushed) {
-        char ***m = userdata;
-        int r;
-
-        if (!utf8_is_valid(key)) {
-                _cleanup_free_ char *t = utf8_escape_invalid(key);
-
-                log_error("%s:%u: invalid UTF-8 for key '%s', ignoring.", strna(filename), line, t);
-                return -EINVAL;
-        }
-
-        if (value && !utf8_is_valid(value)) {
-                _cleanup_free_ char *t = utf8_escape_invalid(value);
-
-                log_error("%s:%u: invalid UTF-8 value for key %s: '%s', ignoring.", strna(filename), line, key, t);
-                return -EINVAL;
-        }
-
-        r = strv_extend(m, key);
-        if (r < 0)
-                return -ENOMEM;
-
-        if (!value) {
-                r = strv_extend(m, "");
-                if (r < 0)
-                        return -ENOMEM;
-        } else {
-                r = strv_push(m, value);
-                if (r < 0)
-                        return r;
-        }
-
-        if (n_pushed)
-                (*n_pushed)++;
-
-        return 0;
-}
-
-int load_env_file_pairs(FILE *f, const char *fname, const char *newline, char ***rl) {
-        char **m = NULL;
-        int r;
-
-        if (!newline)
-                newline = NEWLINE;
-
-        r = parse_env_file_internal(f, fname, newline, load_env_file_push_pairs, &m, NULL);
-        if (r < 0) {
-                strv_free(m);
-                return r;
-        }
-
-        *rl = m;
-        return 0;
-}
-
-static void write_env_var(FILE *f, const char *v) {
-        const char *p;
-
-        p = strchr(v, '=');
-        if (!p) {
-                /* Fallback */
-                fputs(v, f);
-                fputc('\n', f);
-                return;
-        }
-
-        p++;
-        fwrite(v, 1, p-v, f);
-
-        if (string_has_cc(p, NULL) || chars_intersect(p, WHITESPACE SHELL_NEED_QUOTES)) {
-                fputc('\"', f);
-
-                for (; *p; p++) {
-                        if (strchr(SHELL_NEED_ESCAPE, *p))
-                                fputc('\\', f);
-
-                        fputc(*p, f);
-                }
-
-                fputc('\"', f);
-        } else
-                fputs(p, f);
-
-        fputc('\n', f);
-}
-
-int write_env_file(const char *fname, char **l) {
-        _cleanup_fclose_ FILE *f = NULL;
-        _cleanup_free_ char *p = NULL;
-        char **i;
-        int r;
-
-        assert(fname);
-
-        r = fopen_temporary(fname, &f, &p);
-        if (r < 0)
-                return r;
-
-        fchmod_umask(fileno(f), 0644);
-
-        STRV_FOREACH(i, l)
-                write_env_var(f, *i);
-
-        r = fflush_and_check(f);
-        if (r >= 0) {
-                if (rename(p, fname) >= 0)
-                        return 0;
-
-                r = -errno;
-        }
-
-        unlink(p);
-        return r;
-}
-
-int executable_is_script(const char *path, char **interpreter) {
-        int r;
-        _cleanup_free_ char *line = NULL;
-        int len;
-        char *ans;
-
-        assert(path);
-
-        r = read_one_line_file(path, &line);
-        if (r < 0)
-                return r;
-
-        if (!startswith(line, "#!"))
-                return 0;
-
-        ans = strstrip(line + 2);
-        len = strcspn(ans, " \t");
-
-        if (len == 0)
-                return 0;
-
-        ans = strndup(ans, len);
-        if (!ans)
-                return -ENOMEM;
-
-        *interpreter = ans;
-        return 1;
-}
-
-/**
- * Retrieve one field from a file like /proc/self/status.  pattern
- * should start with '\n' and end with a ':'. Whitespace and zeros
- * after the ':' will be skipped. field must be freed afterwards.
- */
-int get_status_field(const char *filename, const char *pattern, char **field) {
-        _cleanup_free_ char *status = NULL;
-        char *t;
-        size_t len;
-        int r;
-
-        assert(filename);
-        assert(pattern);
-        assert(field);
-
-        r = read_full_file(filename, &status, NULL);
-        if (r < 0)
-                return r;
-
-        t = strstr(status, pattern);
-        if (!t)
-                return -ENOENT;
-
-        t += strlen(pattern);
-        if (*t) {
-                t += strspn(t, " \t");
-
-                /* Also skip zeros, because when this is used for
-                 * capabilities, we don't want the zeros. This way the
-                 * same capability set always maps to the same string,
-                 * irrespective of the total capability set size. For
-                 * other numbers it shouldn't matter. */
-                t += strspn(t, "0");
-                /* Back off one char if there's nothing but whitespace
-                   and zeros */
-                if (!*t || isspace(*t))
-                        t --;
-        }
-
-        len = strcspn(t, WHITESPACE);
-
-        *field = strndup(t, len);
-        if (!*field)
-                return -ENOMEM;
-
-        return 0;
-}