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initrd: fix prefixes

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Matheus
2024-05-12 13:56:45 -03:00
parent efecdade64
commit 6f37034ed0
1 changed files with 5 additions and 3 deletions
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kernel-src/fs/initrd.c
+5 -3
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@@ -38,7 +38,7 @@ typedef struct {
} tarheader_t; } tarheader_t;
typedef struct { typedef struct {
char name[256]; char name[257];
mode_t mode; mode_t mode;
gid_t gid; gid_t gid;
uid_t uid; uid_t uid;
@@ -68,14 +68,16 @@ static void buildentry(tarentry_t *entry, void *addr) {
char *namecpyptr = entry->name; char *namecpyptr = entry->name;
// name has a prefix // name has a prefix
if (header->name[99]) { if (header->prefix[0]) {
size_t len = header->prefix[154] ? 155 : strlen(header->prefix); size_t len = header->prefix[154] ? 155 : strlen(header->prefix);
memcpy(namecpyptr, header->prefix, len); memcpy(namecpyptr, header->prefix, len);
namecpyptr += len; namecpyptr += len;
*namecpyptr++ = '/';
} }
size_t namelen = header->name[99] ? 99 : strlen(header->name); size_t namelen = header->name[99] ? 99 : strlen(header->name);
memcpy(namecpyptr, header->name, namelen); memcpy(namecpyptr, header->name, namelen);
entry->name[namelen] = '\0'; namecpyptr += namelen;
*namecpyptr = '\0';
entry->mode = convert(header->mode, 7); entry->mode = convert(header->mode, 7);
entry->uid = convert(header->uid, 7); entry->uid = convert(header->uid, 7);