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2a1095924b
This uses the .clang-format file in the follow-up commit, but committed prior to that to ease review of said file and various integrations. Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1246>
68 lines
2 KiB
C
68 lines
2 KiB
C
/*
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* Copyright © 2019 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <config.h>
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#pragma once
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#include <unistd.h>
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#include "util-strings.h"
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/**
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* Try to figure out the directory we're executing from and if it matches
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* the builddir true and set builddir (if not NULL) to the given builddir.
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*/
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static inline bool
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builddir_lookup(char **builddir)
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{
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char execdir[PATH_MAX];
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char *pathsep;
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ssize_t nread;
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/* In the case of release builds, the builddir is
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the empty string */
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if (streq(MESON_BUILD_ROOT, ""))
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return false;
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nread = readlink("/proc/self/exe", execdir, sizeof(execdir) - 1);
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if (nread <= 0 || nread == sizeof(execdir) - 1)
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return false;
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/* readlink doesn't terminate the string and readlink says
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anything past sz is undefined */
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execdir[nread] = '\0';
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pathsep = strrchr(execdir, '/');
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if (!pathsep)
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return false;
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*pathsep = '\0';
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if (!streq(execdir, MESON_BUILD_ROOT))
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return false;
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if (builddir)
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*builddir = safe_strdup(execdir);
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return true;
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}
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