/*++ /* NAME /* name_code 3 /* SUMMARY /* name to number table mapping /* SYNOPSIS /* #include <name_code.h> /* /* typedef struct { /* .in +4 /* const char *name; /* int code; /* .in -4 /* } NAME_CODE; /* /* int name_code(table, flags, name) /* const NAME_CODE *table; /* int flags; /* const char *name; /* /* const char *str_name_code(table, code) /* const NAME_CODE *table; /* int code; /* DESCRIPTION /* This module does simple name<->number mapping. The process /* is controlled by a table of (name, code) values. /* The table is terminated with a null pointer and a code that /* corresponds to "name not found". /* /* name_code() looks up the code that corresponds with the name. /* The lookup is case insensitive. The flags argument specifies /* zero or more of the following: /* .IP NAME_CODE_FLAG_STRICT_CASE /* String lookups are case sensitive. /* .PP /* For convenience the constant NAME_CODE_FLAG_NONE requests /* no special processing. /* /* str_name_code() translates a number to its equivalent string. /* DIAGNOSTICS /* When the search fails, the result is the "name not found" code /* or the null pointer, respectively. /* LICENSE /* .ad /* .fi /* The Secure Mailer license must be distributed with this software. /* AUTHOR(S) /* Wietse Venema /* IBM T.J. Watson Research /* P.O. Box 704 /* Yorktown Heights, NY 10598, USA /*--*/ /* System library. */ #include <sys_defs.h> #include <string.h> #ifdef STRCASECMP_IN_STRINGS_H #include <strings.h> #endif /* Utility library. */ #include <name_code.h> /* name_code - look up code by name */ int name_code(const NAME_CODE *table, int flags, const char *name) { const NAME_CODE *np; int (*lookup) (const char *, const char *); if (flags & NAME_CODE_FLAG_STRICT_CASE) lookup = strcmp; else lookup = strcasecmp; for (np = table; np->name; np++) if (lookup(name, np->name) == 0) break; return (np->code); } /* str_name_code - look up name by code */ const char *str_name_code(const NAME_CODE *table, int code) { const NAME_CODE *np; for (np = table; np->name; np++) if (code == np->code) break; return (np->name); }