src/shared/strv.c

	strv.c revision d7832d2c6e0ef5f2839a2296c1cc2fc85c7d9632
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering/***
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  This file is part of systemd.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  Copyright 2010 Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  under the terms of the GNU General Public License as published by
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  the Free Software Foundation; either version 2 of the License, or
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  (at your option) any later version.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  systemd is distributed in the hope that it will be useful, but
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  General Public License for more details.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  You should have received a copy of the GNU General Public License
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering***/
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include <assert.h>
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include <stdlib.h>
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include <stdarg.h>
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include <string.h>
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include <errno.h>
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include "util.h"
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek#include "strv.h"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar *strv_find(char **l, const char *name) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(name);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        STRV_FOREACH(i, l)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (streq(*i, name))
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek                        return *i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar *strv_find_prefix(char **l, const char *name) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        char **i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(name);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        STRV_FOREACH(i, l)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (startswith(*i, name))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return *i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringvoid strv_free(char **l) {
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        char **k;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        if (!l)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (k = l; *k; k++)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                free(*k);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        free(l);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidtchar **strv_copy(char **l) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **r, **k;
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering        k = r = new(char*, strv_length(l)+1);
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering        if (!k)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering        if (l)
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering                for (; *l; k++, l++)
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering                        if (!(*k = strdup(*l)))
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering                                goto fail;
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering        *k = NULL;
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering        return r;
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringfail:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (k--; k >= r; k--)
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                free(*k);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        free(r);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringunsigned strv_length(char **l) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        unsigned n = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!l)
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek                return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (; *l; l++)
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                n++;
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt        return n;
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt}
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_new_ap(const char *x, va_list ap) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        const char *s;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **a;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        unsigned n = 0, i = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_list aq;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (x) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                n = 1;
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                va_copy(aq, ap);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                while (va_arg(aq, const char*))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n++;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                va_end(aq);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(a = new(char*, n+1)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (x) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (!(a[i] = strdup(x))) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        free(a);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                i++;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                while ((s = va_arg(ap, const char*))) {
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                        if (!(a[i] = strdup(s)))
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                                goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        i++;
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek                }
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        }
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        a[i] = NULL;
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        return a;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmekfail:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (; i > 0; i--)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (a[i-1])
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                        free(a[i-1]);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        free(a);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        return NULL;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek}
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmekchar **strv_new(const char *x, ...) {
4b8268f843b0da1cfe1995d93a0b1f95faccc454Zbigniew Jędrzejewski-Szmek        char **r;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        va_list ap;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
4b8268f843b0da1cfe1995d93a0b1f95faccc454Zbigniew Jędrzejewski-Szmek        va_start(ap, x);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        r = strv_new_ap(x, ap);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        va_end(ap);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        return r;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek}
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmekchar **strv_merge(char **a, char **b) {
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        char **r, **k;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        if (!a)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                return strv_copy(b);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        if (!b)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                return strv_copy(a);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        if (!(r = new(char*, strv_length(a)+strv_length(b)+1)))
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                return NULL;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        for (k = r; *a; k++, a++)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                if (!(*k = strdup(*a)))
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                        goto fail;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        for (; *b; k++, b++)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                if (!(*k = strdup(*b)))
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                        goto fail;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        *k = NULL;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        return r;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmekfail:
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        for (k--; k >= r; k--)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                free(*k);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        free(r);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        return NULL;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek}
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmekchar **strv_merge_concat(char **a, char **b, const char *suffix) {
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        char **r, **k;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        /* Like strv_merge(), but appends suffix to all strings in b, before adding */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!b)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return strv_copy(a);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r = new(char*, strv_length(a) + strv_length(b) + 1);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        if (!r)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        k = r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (a)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                for (; *a; k++, a++) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        *k = strdup(*a);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        if (!*k)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (; *b; k++, b++) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                *k = strappend(*b, suffix);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (!*k)
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                        goto fail;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        }
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        *k = NULL;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        return r;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringfail:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (k--; k >= r; k--)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                free(*k);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        free(r);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_split(const char *s, const char *separator) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char *state;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char *w;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        size_t l;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        unsigned n, i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(s);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        FOREACH_WORD_SEPARATOR(w, l, s, separator, state)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                n++;
d3b6d0c21ea5a0d15ec6dbd8b8d179138b7463bcZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(r = new(char*, n+1)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        i = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        FOREACH_WORD_SEPARATOR(w, l, s, separator, state)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (!(r[i++] = strndup(w, l))) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        strv_free(r);
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek                        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r[i] = NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmekchar **strv_split_quoted(const char *s) {
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        char *state;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char *w;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        size_t l;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        unsigned n, i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **r;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(s);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        n = 0;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        FOREACH_WORD_QUOTED(w, l, s, state)
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                n++;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(r = new(char*, n+1)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        i = 0;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        FOREACH_WORD_QUOTED(w, l, s, state)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                if (!(r[i++] = cunescape_length(w, l))) {
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                        strv_free(r);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r[i] = NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmekchar *strv_join(char **l, const char *separator) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char *r, *e;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **s;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        size_t n, k;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!separator)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                separator = " ";
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        k = strlen(separator);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        STRV_FOREACH(s, l) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (n != 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n += k;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                n += strlen(*s);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(r = new(char, n+1)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        e = r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        STRV_FOREACH(s, l) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (e != r)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        e = stpcpy(e, separator);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                e = stpcpy(e, *s);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        *e = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_append(char **l, const char *s) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **r, **k;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        if (!l)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return strv_new(s, NULL);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!s)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return strv_copy(l);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r = new(char*, strv_length(l)+2);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!r)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                return NULL;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        for (k = r; *l; k++, l++)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (!(*k = strdup(*l)))
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        goto fail;
7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        if (!(*(k++) = strdup(s)))
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                goto fail;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        *k = NULL;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        return r;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekfail:
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        for (k--; k >= r; k--)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                free(*k);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        free(r);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        return NULL;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekchar **strv_uniq(char **l) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        char **i;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        /* Drops duplicate entries. The first identical string will be
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         * kept, the others dropped */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        STRV_FOREACH(i, l)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                strv_remove(i+1, *i);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
80343dc19a9bcd703275ad2ad88f43e5310559d6Zbigniew Jędrzejewski-Szmek        return l;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekchar **strv_remove(char **l, const char *s) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        char **f, **t;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        if (!l)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                return NULL;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(s);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        /* Drops every occurrence of s in the string list, edits
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         * in-place. */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        for (f = t = l; *f; f++) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (streq(*f, s)) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        free(*f);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        continue;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                }
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                *(t++) = *f;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        }
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        *t = NULL;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        return l;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekstatic int env_append(char **r, char ***k, char **a) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(r);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(k);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        if (!a)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                return 0;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        /* Add the entries of a to *k unless they already exist in *r
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         * in which case they are overridden instead. This assumes
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         * there is enough space in the r array. */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        for (; *a; a++) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                char **j;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                size_t n;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                n = strcspn(*a, "=");
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if ((*a)[n] == '=')
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n++;
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                for (j = r; j < *k; j++)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        if (strncmp(*j, *a, n) == 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                break;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (j >= *k)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        (*k)++;
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                else
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        free(*j);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (!(*j = strdup(*a)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return -ENOMEM;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_env_merge(unsigned n_lists, ...) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        size_t n = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **l, **k, **r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_list ap;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        unsigned i;
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        /* Merges an arbitrary number of environment sets */
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        va_start(ap, n_lists);
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        for (i = 0; i < n_lists; i++) {
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek                l = va_arg(ap, char**);
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek                n += strv_length(l);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_end(ap);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(r = new(char*, n+1)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
80343dc19a9bcd703275ad2ad88f43e5310559d6Zbigniew Jędrzejewski-Szmek
80343dc19a9bcd703275ad2ad88f43e5310559d6Zbigniew Jędrzejewski-Szmek        k = r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_start(ap, n_lists);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (i = 0; i < n_lists; i++) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                l = va_arg(ap, char**);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (env_append(r, &k, l) < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_end(ap);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        *k = NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        return r;
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmekfail:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_end(ap);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (k--; k >= r; k--)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                free(*k);
7ff7394d9e4e9189c30fd018235e6b1728c6f2d0Zbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        free(r);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        return NULL;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekstatic bool env_match(const char *t, const char *pattern) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(t);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(pattern);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        /* pattern a matches string a
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         *         a matches a=
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         *         a matches a=b
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         *         a= matches a=
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         *         a=b matches a=b
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         *         a= does not match a
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         *         a=b does not match a=
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         *         a=b does not match a
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         *         a=b does not match a=c */
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (streq(t, pattern))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return true;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!strchr(pattern, '=')) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                size_t l = strlen(pattern);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                return strncmp(t, pattern, l) == 0 && t[l] == '=';
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return false;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_env_delete(char **x, unsigned n_lists, ...) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        size_t n, i = 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **k, **r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        va_list ap;
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        /* Deletes every entry from x that is mentioned in the other
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         * string lists */
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n = strv_length(x);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering        r = new(char*, n+1);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!r)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        STRV_FOREACH(k, x) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                unsigned v;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                va_start(ap, n_lists);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                for (v = 0; v < n_lists; v++) {
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                        char **l, **j;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering                        l = va_arg(ap, char**);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        STRV_FOREACH(j, l)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                if (env_match(*k, *j))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                        goto skip;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                va_end(ap);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r[i] = strdup(*k);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (!r[i]) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        strv_free(r);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                i++;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                continue;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        skip:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                va_end(ap);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r[i] = NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(i <= n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return r;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_env_unset(char **l, const char *p) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **f, **t;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!l)
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(p);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        /* Drops every occurrence of the env var setting p in the
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering         * string list. edits in-place. */
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        for (f = t = l; *f; f++) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (env_match(*f, p)) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        free(*f);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        continue;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                *(t++) = *f;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        }
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        *t = NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return l;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_env_set(char **x, const char *p) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **k, **r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char* m[2] = { (char*) p, NULL };
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        /* Overrides the env var setting of p, returns a new copy */
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(r = new(char*, strv_length(x)+2)))
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        k = r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (env_append(r, &k, x) < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (env_append(r, &k, m) < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        *k = NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringfail:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (k--; k >= r; k--)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                free(*k);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        free(r);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar *strv_env_get_with_length(char **l, const char *name, size_t k) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **i;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(name);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        STRV_FOREACH(i, l)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (strncmp(*i, name, k) == 0 &&
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                    (*i)[k] == '=')
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return *i + k + 1;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar *strv_env_get(char **l, const char *name) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return strv_env_get_with_length(l, name, strlen(name));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringchar **strv_env_clean(char **l) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        char **r, **ret;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (r = ret = l; *l; l++) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                const char *equal;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                equal = strchr(*l, '=');
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (equal && equal[1] == 0) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        free(*l);
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        continue;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                }
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                *(r++) = *l;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        }
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        *r = NULL;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        return ret;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek}
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmekchar **strv_parse_nulstr(const char *s, size_t l) {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        const char *p;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        unsigned c = 0, i = 0;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        char **v;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(s || l <= 0);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (l <= 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return strv_new(NULL, NULL);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        for (p = s; p < s + l; p++)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (*p == 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        c++;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (s[l-1] != 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                c++;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!(v = new0(char*, c+1)))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        p = s;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        while (p < s + l) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                const char *e;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                e = memchr(p, 0, s + l - p);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (!(v[i++] = strndup(p, e ? e - p : s + l - p))) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        strv_free(v);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return NULL;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                if (!e)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        break;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                p = e + 1;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(i == c);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return v;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekbool strv_overlap(char **a, char **b) {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        char **i, **j;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        STRV_FOREACH(i, a) {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                STRV_FOREACH(j, b) {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        if (streq(*i, *j))
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                                return true;
7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer                }
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        }
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        return false;
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek}
2e8fb7026d3c560194cfe9f83935ce0b16263da0Lukas Nykryn