30 lines
729 B
C
30 lines
729 B
C
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/* apk_pathbuilder.h - Alpine Package Keeper (APK)
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*
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* Copyright (C) 2021 Timo Teräs <timo.teras@iki.fi>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#include <errno.h>
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#include "apk_pathbuilder.h"
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int apk_pathbuilder_pushb(struct apk_pathbuilder *pb, apk_blob_t b)
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{
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size_t i = pb->namelen;
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if (i + b.len + 2 >= ARRAY_SIZE(pb->name)) return -ENAMETOOLONG;
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if (i) pb->name[i++] = '/';
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memcpy(&pb->name[i], b.ptr, b.len);
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pb->namelen = i + b.len;
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pb->name[pb->namelen] = 0;
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return 0;
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}
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void apk_pathbuilder_pop(struct apk_pathbuilder *pb)
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{
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char *slash = memrchr(pb->name, '/', pb->namelen);
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if (slash) pb->namelen = slash - pb->name;
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else pb->namelen = 0;
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pb->name[pb->namelen] = 0;
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}
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