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BSD 2.11 - man page for syserrlst (bsd section 5)

SYSERRLST(5)							File Formats Manual						      SYSERRLST(5)

syserrlst - error message file format
mkerrlst(1), creates error message files in the format described below. An ``error message file'' consists of a header, an array of structures specifying the offset and length of each message, and the array of message strings separated by newlines. The message strings are separated by newlines but the newline characters are not included in the size of the message. These newline char- acters serve only to make the file editable or printable (after stripping off the header). The file format is: /* * Definitions used by the 'mkerrlst' program which creates error message * files. * * The format of the file created is: * * struct ERRLSTHDR ehdr; * struct ERRLST emsg[num_of_messages]; * struct { * char msg[] = "error message string"; * char lf = '0; * } [num_of_messages]; * * Note: the newlines are NOT included in the message lengths, the newlines * are present to make it easy to 'cat' or 'vi' the file. */ struct ERRLSTHDR { short magic; short maxmsgnum; short maxmsglen; short pad[5]; /* Reserved */ }; struct ERRLST { off_t offmsg; short lenmsg; }; #define ERRMAGIC 012345
mkerrlst(1), syserrlst(3)
Format of the file isn't necessarily portable between machines.
This file format is new with 2.11BSD. 3rd Berkeley Distribution March 7, 1996 SYSERRLST(5)