src/basic/parse-util.c

6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering/***
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  This file is part of systemd.
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  Copyright 2010 Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  under the terms of the GNU Lesser General Public License as published by
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  (at your option) any later version.
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  systemd is distributed in the hope that it will be useful, but
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  Lesser General Public License for more details.
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  You should have received a copy of the GNU Lesser General Public License
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering***/
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <errno.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <inttypes.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <locale.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <stdio.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <stdlib.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <string.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <xlocale.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger#include "alloc-util.h"
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger#include "extract-word.h"
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include "macro.h"
93cc7779e0c121b75183920173f37cd1ee9d59cfThomas Hindoe Paaboel Andersen#include "parse-util.h"
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering#include "string-util.h"
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint parse_boolean(const char *v) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(v);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (streq(v, "1") || strcaseeq(v, "yes") || strcaseeq(v, "y") || strcaseeq(v, "true") || strcaseeq(v, "t") || strcaseeq(v, "on"))
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return 1;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        else if (streq(v, "0") || strcaseeq(v, "no") || strcaseeq(v, "n") || strcaseeq(v, "false") || strcaseeq(v, "f") || strcaseeq(v, "off"))
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint parse_pid(const char *s, pid_t* ret_pid) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned long ul = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        pid_t pid;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        int r;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret_pid);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        r = safe_atolu(s, &ul);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (r < 0)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return r;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        pid = (pid_t) ul;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if ((unsigned long) pid != ul)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (pid <= 0)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret_pid = pid;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint parse_mode(const char *s, mode_t *ret) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        s += strspn(s, WHITESPACE);
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (s[0] == '-')
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -ERANGE;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtol(s, &x, 8);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -errno;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (!x || x == s || *x)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (l < 0 || l  > 07777)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret = (mode_t) l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poetteringint parse_ifindex(const char *s, int *ret) {
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering        int ifi, r;
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering        r = safe_atoi(s, &ifi);
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering        if (r < 0)
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering                return r;
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering        if (ifi <= 0)
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering                return -EINVAL;
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering        *ret = ifi;
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering        return 0;
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering}
6ad623a3f77e087e308f334525fd4046811f2a9aLennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint parse_size(const char *t, uint64_t base, uint64_t *size) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        /* Soo, sometimes we want to parse IEC binary suffixes, and
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * sometimes SI decimal suffixes. This function can parse
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * both. Which one is the right way depends on the
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * context. Wikipedia suggests that SI is customary for
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * hardware metrics and network speeds, while IEC is
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * customary for most data sizes used by software and volatile
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * (RAM) memory. Hence be careful which one you pick!
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         *
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * In either case we use just K, M, G as suffix, and not Ki,
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * Mi, Gi or so (as IEC would suggest). That's because that's
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * frickin' ugly. But this means you really need to make sure
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * to document which base you are parsing when you use this
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering         * call. */
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        struct table {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                const char *suffix;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                unsigned long long factor;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        };
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        static const struct table iec[] = {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "E", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "T", 1024ULL*1024ULL*1024ULL*1024ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "G", 1024ULL*1024ULL*1024ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "M", 1024ULL*1024ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "K", 1024ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "B", 1ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "",  1ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        };
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        static const struct table si[] = {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "E", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "P", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "T", 1000ULL*1000ULL*1000ULL*1000ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "G", 1000ULL*1000ULL*1000ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "M", 1000ULL*1000ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "K", 1000ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "B", 1ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "",  1ULL },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        };
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        const struct table *table;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        const char *p;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned long long r = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned n_entries, start_pos = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(t);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(base == 1000 || base == 1024);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(size);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (base == 1000) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                table = si;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                n_entries = ELEMENTSOF(si);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        } else {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                table = iec;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                n_entries = ELEMENTSOF(iec);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        }
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        p = t;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        do {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                unsigned long long l, tmp;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                double frac = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                char *e;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                unsigned i;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                p += strspn(p, WHITESPACE);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                l = strtoull(p, &e, 10);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek                if (errno > 0)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        return -errno;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if (e == p)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        return -EINVAL;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                if (*p == '-')
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                        return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if (*e == '.') {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        e++;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        /* strtoull() itself would accept space/+/- */
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        if (*e >= '0' && *e <= '9') {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                unsigned long long l2;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                char *e2;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                l2 = strtoull(e, &e2, 10);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek                                if (errno > 0)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                        return -errno;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                /* Ignore failure. E.g. 10.M is valid */
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                frac = l2;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                for (; e < e2; e++)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                        frac /= 10;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        }
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                }
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                e += strspn(e, WHITESPACE);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                for (i = start_pos; i < n_entries; i++)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        if (startswith(e, table[i].suffix))
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                break;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if (i >= n_entries)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if (l + (frac > 0) > ULLONG_MAX / table[i].factor)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                tmp = l * table[i].factor + (unsigned long long) (frac * table[i].factor);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if (tmp > ULLONG_MAX - r)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                r += tmp;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if ((unsigned long long) (uint64_t) r != r)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                p = e + strlen(table[i].suffix);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                start_pos = i + 1;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        } while (*p);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *size = r;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburgerint parse_range(const char *t, unsigned *lower, unsigned *upper) {
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        _cleanup_free_ char *word = NULL;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        unsigned l, u;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        int r;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        assert(lower);
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        assert(upper);
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        /* Extract the lower bound. */
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        r = extract_first_word(&t, &word, "-", EXTRACT_DONT_COALESCE_SEPARATORS);
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        if (r < 0)
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                return r;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        if (r == 0)
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                return -EINVAL;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        r = safe_atou(word, &l);
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        if (r < 0)
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                return r;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        /* Check for the upper bound and extract it if needed */
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        if (!t)
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                /* Single number with no dashes. */
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                u = l;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        else if (!*t)
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                /* Trailing dash is an error. */
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                return -EINVAL;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        else {
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                r = safe_atou(t, &u);
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                if (r < 0)
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger                        return r;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        }
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        *lower = l;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        *upper = u;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger        return 0;
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger}
28cb17ef0281efc3a46e5d0e702b0b0ddeaafaa4Filipe Brandenburger
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringchar *format_bytes(char *buf, size_t l, uint64_t t) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned i;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        /* This only does IEC units so far */
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        static const struct {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                const char *suffix;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                uint64_t factor;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        } table[] = {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "E", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "P", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "T", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "G", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "M", UINT64_C(1024)*UINT64_C(1024) },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                { "K", UINT64_C(1024) },
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        };
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (t == (uint64_t) -1)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        for (i = 0; i < ELEMENTSOF(table); i++) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                if (t >= table[i].factor) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        snprintf(buf, l,
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                 "%" PRIu64 ".%" PRIu64 "%s",
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                 t / table[i].factor,
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                 ((t*UINT64_C(10)) / table[i].factor) % UINT64_C(10),
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                                 table[i].suffix);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                        goto finish;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                }
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        }
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        snprintf(buf, l, "%" PRIu64 "B", t);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringfinish:
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        buf[l-1] = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return buf;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atou(const char *s, unsigned *ret_u) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret_u);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        /* strtoul() is happy to parse negative values, and silently
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering         * converts them to unsigned values without generating an
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering         * error. We want a clean error, hence let's look for the "-"
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering         * prefix on our own, and generate an error. But let's do so
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering         * only after strtoul() validated that the string is clean
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering         * otherwise, so that we return EINVAL preferably over
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering         * ERANGE. */
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        s += strspn(s, WHITESPACE);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        errno = 0;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        l = strtoul(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (s[0] == '-')
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if ((unsigned long) (unsigned) l != l)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret_u = (unsigned) l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atoi(const char *s, int *ret_i) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret_i);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtol(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if ((long) (int) l != l)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret_i = (int) l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atollu(const char *s, long long unsigned *ret_llu) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned long long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret_llu);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        s += strspn(s, WHITESPACE);
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtoull(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (*s == '-')
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret_llu = l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atolli(const char *s, long long int *ret_lli) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        long long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret_lli);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtoll(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret_lli = l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atou8(const char *s, uint8_t *ret) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        s += strspn(s, WHITESPACE);
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtoul(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (s[0] == '-')
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if ((unsigned long) (uint8_t) l != l)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret = (uint8_t) l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atou16(const char *s, uint16_t *ret) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        unsigned long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        s += strspn(s, WHITESPACE);
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtoul(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (s[0] == '-')
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if ((unsigned long) (uint16_t) l != l)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret = (uint16_t) l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atoi16(const char *s, int16_t *ret) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        long l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        l = strtol(s, &x, 0);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x)
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if ((long) (int16_t) l != l)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -ERANGE;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret = (int16_t) l;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poetteringint safe_atod(const char *s, double *ret_d) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        char *x = NULL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        double d = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        locale_t loc;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(s);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        assert(ret_d);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        loc = newlocale(LC_NUMERIC_MASK, "C", (locale_t) 0);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        if (loc == (locale_t) 0)
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                return -errno;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        errno = 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        d = strtod_l(s, &x, loc);
b3267152783d5784c45010615045d4e8ee459da2Zbigniew Jędrzejewski-Szmek        if (errno > 0) {
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering                freelocale(loc);
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -errno;
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        }
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering        if (!x || x == s || *x) {
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                freelocale(loc);
2d49a208f8ad9d1c4e79fa4302451e35d06de707Lennart Poettering                return -EINVAL;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        }
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        freelocale(loc);
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        *ret_d = (double) d;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering        return 0;
6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering}
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venevint parse_fractional_part_u(const char **p, size_t digits, unsigned *res) {
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        size_t i;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        unsigned val = 0;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        const char *s;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        s = *p;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        /* accept any number of digits, strtoull is limted to 19 */
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        for(i=0; i < digits; i++,s++) {
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                if (*s < '0' || *s > '9') {
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                        if (i == 0)
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                                return -EINVAL;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                        /* too few digits, pad with 0 */
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                        for (; i < digits; i++)
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                                val *= 10;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                        break;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                }
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                val *= 10;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                val += *s - '0';
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        }
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        /* maybe round up */
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        if (*s >= '5' && *s <= '9')
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev                val++;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        s += strspn(s, DIGITS);
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        *p = s;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        *res = val;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev        return 0;
436dd70f5331ec541ebdd84e106abaa63203f6f1Hristo Venev}