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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
commit | b5896ba9f6047e7031e2bdee0622d543e11a6734 (patch) | |
tree | fd7b460593a2fee1be579bec5697e6d887ea3421 /src/util/allprint.c | |
parent | Initial commit. (diff) | |
download | postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.tar.xz postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.zip |
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/util/allprint.c')
-rw-r--r-- | src/util/allprint.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/util/allprint.c b/src/util/allprint.c new file mode 100644 index 0000000..6e9c519 --- /dev/null +++ b/src/util/allprint.c @@ -0,0 +1,50 @@ +/*++ +/* NAME +/* allprint 3 +/* SUMMARY +/* predicate if string is all printable +/* SYNOPSIS +/* #include <stringops.h> +/* +/* int allprint(buffer) +/* const char *buffer; +/* DESCRIPTION +/* allprint() determines if its argument is an all-printable string. +/* +/* Arguments: +/* .IP buffer +/* The null-terminated input string. +/* 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 <ctype.h> + +/* Utility library. */ + +#include "stringops.h" + +/* allprint - return true if string is all printable */ + +int allprint(const char *string) +{ + const char *cp; + int ch; + + if (*string == 0) + return (0); + for (cp = string; (ch = *(unsigned char *) cp) != 0; cp++) + if (!ISASCII(ch) || !ISPRINT(ch)) + return (0); + return (1); +} |