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Diffstat (limited to 'man3/setaliasent.3')
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diff --git a/man3/setaliasent.3 b/man3/setaliasent.3 deleted file mode 100644 index acdad17..0000000 --- a/man3/setaliasent.3 +++ /dev/null @@ -1,184 +0,0 @@ -'\" t -.\" Copyright 2003 Walter Harms (walter.harms@informatik.uni-oldenburg.de) -.\" -.\" SPDX-License-Identifier: GPL-1.0-or-later -.\" -.\" Polished a bit, added a little, aeb -.\" -.TH setaliasent 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -setaliasent, endaliasent, getaliasent, getaliasent_r, -getaliasbyname, getaliasbyname_r \- read an alias entry -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include <aliases.h> -.P -.B "void setaliasent(void);" -.B "void endaliasent(void);" -.P -.B "struct aliasent *getaliasent(void);" -.BI "int getaliasent_r(struct aliasent *restrict " result , -.BI " char " buffer "[restrict ." buflen "], \ -size_t " buflen , -.BI " struct aliasent **restrict " res ); -.P -.BI "struct aliasent *getaliasbyname(const char *" name ); -.BI "int getaliasbyname_r(const char *restrict " name , -.BI " struct aliasent *restrict " result , -.BI " char " buffer "[restrict ." buflen "], \ -size_t " buflen , -.BI " struct aliasent **restrict " res ); -.fi -.SH DESCRIPTION -One of the databases available with the Name Service Switch (NSS) -is the aliases database, that contains mail aliases. -(To find out which databases are supported, try -.IR "getent \-\-help" .) -Six functions are provided to access the aliases database. -.P -The -.BR getaliasent () -function returns a pointer to a structure containing -the group information from the aliases database. -The first time it is called it returns the first entry; -thereafter, it returns successive entries. -.P -The -.BR setaliasent () -function rewinds the file pointer to the beginning of the -aliases database. -.P -The -.BR endaliasent () -function closes the aliases database. -.P -.BR getaliasent_r () -is the reentrant version of the previous function. -The requested structure -is stored via the first argument but the programmer needs to fill the other -arguments also. -Not providing enough space causes the function to fail. -.P -The function -.BR getaliasbyname () -takes the name argument and searches the aliases database. -The entry is returned as a pointer to a -.IR "struct aliasent" . -.P -.BR getaliasbyname_r () -is the reentrant version of the previous function. -The requested structure -is stored via the second argument but the programmer needs to fill the other -arguments also. -Not providing enough space causes the function to fail. -.P -The -.I "struct aliasent" -is defined in -.IR <aliases.h> : -.P -.in +4n -.EX -struct aliasent { - char *alias_name; /* alias name */ - size_t alias_members_len; - char **alias_members; /* alias name list */ - int alias_local; -}; -.EE -.in -.SH RETURN VALUE -The functions -.BR getaliasent_r () -and -.BR getaliasbyname_r () -return a nonzero value on error. -.SH FILES -The default alias database is the file -.IR /etc/aliases . -This can be changed in the -.I /etc/nsswitch.conf -file. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR setaliasent (), -.BR endaliasent (), -.BR getaliasent_r (), -.BR getaliasbyname_r () -T} Thread safety MT-Safe locale -T{ -.na -.nh -.BR getaliasent (), -.BR getaliasbyname () -T} Thread safety MT-Unsafe -.TE -.SH STANDARDS -GNU. -.SH HISTORY -The NeXT system has similar routines: -.P -.in +4n -.EX -#include <aliasdb.h> -\& -void alias_setent(void); -void alias_endent(void); -alias_ent *alias_getent(void); -alias_ent *alias_getbyname(char *name); -.EE -.in -.SH EXAMPLES -The following example compiles with -.IR "gcc example.c \-o example" . -It will dump all names in the alias database. -.P -.\" SRC BEGIN (setaliasent.c) -.EX -#include <aliases.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -\& -int -main(void) -{ - struct aliasent *al; -\& - setaliasent(); - for (;;) { - al = getaliasent(); - if (al == NULL) - break; - printf("Name: %s\en", al\->alias_name); - } - if (errno) { - perror("reading alias"); - exit(EXIT_FAILURE); - } - endaliasent(); - exit(EXIT_SUCCESS); -} -.EE -.\" SRC END -.SH SEE ALSO -.BR getgrent (3), -.BR getpwent (3), -.BR getspent (3), -.BR aliases (5) -.\" -.\" /etc/sendmail/aliases -.\" Yellow Pages -.\" newaliases, postalias |