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hurd: Fix FS_RETRY_MAGICAL "machtype" handling
We need to set file_name, not update retryname. This is what the other branches do. Before this change, any attempt to access such a file would segfault due to file_name being unset: $ settrans -ac /tmp/my-machtype /hurd/magic machtype $ cat /tmp/my-machtype Segmentation fault Checked on i686-gnu. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230429131354.2507443-7-bugaevc@gmail.com>
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89f1e04174
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@ -277,7 +277,6 @@ __hurd_file_name_lookup_retry (error_t (*use_init_port)
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error_t err;
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struct host_basic_info hostinfo;
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mach_msg_type_number_t hostinfocnt = HOST_BASIC_INFO_COUNT;
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char *p;
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/* XXX want client's host */
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if (err = __host_info (__mach_host_self (), HOST_BASIC_INFO,
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(integer_t *) &hostinfo,
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@ -288,13 +287,11 @@ __hurd_file_name_lookup_retry (error_t (*use_init_port)
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err = EGRATUITOUS;
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goto out;
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}
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p = _itoa (hostinfo.cpu_subtype, &retryname[8], 10, 0);
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*--p = '/';
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p = _itoa (hostinfo.cpu_type, &retryname[8], 10, 0);
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if (p < retryname)
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file_name = _itoa (hostinfo.cpu_subtype, &retryname[8], 10, 0);
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*--file_name = '/';
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file_name = _itoa (hostinfo.cpu_type, file_name, 10, 0);
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if (file_name < retryname)
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abort (); /* XXX write this right if this ever happens */
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if (p > retryname)
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memmove (retryname, p, strlen(p) + 1);
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startdir = *result;
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}
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else
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