mirror of https://github.com/pygos/pkg-utils.git
57 lines
823 B
C
57 lines
823 B
C
/* SPDX-License-Identifier: ISC */
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#include <string.h>
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#include "util/util.h"
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int canonicalize_name(char *filename)
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{
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char *ptr = filename;
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int i;
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while (*ptr == '/')
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++ptr;
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if (ptr != filename) {
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memmove(filename, ptr, strlen(ptr) + 1);
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ptr = filename;
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}
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while (*ptr != '\0') {
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if (*ptr == '/') {
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for (i = 0; ptr[i] == '/'; ++i)
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;
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if (i > 1)
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memmove(ptr + 1, ptr + i, strlen(ptr + i) + 1);
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}
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if (ptr[0] == '/' && ptr[1] == '\0') {
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*ptr = '\0';
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break;
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}
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++ptr;
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}
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ptr = filename;
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while (*ptr != '\0') {
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if (ptr[0] == '.') {
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if (ptr[1] == '/' || ptr[1] == '\0')
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return -1;
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if (ptr[1] == '.' &&
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(ptr[2] == '/' || ptr[2] == '\0')) {
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return -1;
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}
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}
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while (*ptr != '\0' && *ptr != '/')
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++ptr;
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if (*ptr == '/')
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++ptr;
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}
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return 0;
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}
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