/*++ /* NAME /* neuter 3 /* SUMMARY /* neutralize characters before they can explode /* SYNOPSIS /* #include <stringops.h> /* /* char *neuter(buffer, bad, replacement) /* char *buffer; /* const char *bad; /* int replacement; /* DESCRIPTION /* neuter() replaces bad characters in its input /* by the given replacement. /* /* Arguments: /* .IP buffer /* The null-terminated input string. /* .IP bad /* The null-terminated bad character string. /* .IP replacement /* Replacement value for characters in \fIbuffer\fR that do not /* pass the bad character test. /* 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> /* Utility library. */ #include <stringops.h> /* neuter - neutralize bad characters */ char *neuter(char *string, const char *bad, int replacement) { char *cp; int ch; for (cp = string; (ch = *(unsigned char *) cp) != 0; cp++) if (strchr(bad, ch) != 0) *cp = replacement; return (string); }