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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:18:56 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:18:56 +0000 |
commit | b7c15c31519dc44c1f691e0466badd556ffe9423 (patch) | |
tree | f944572f288bab482a615e09af627d9a2b6727d8 /src/util/allspace.c | |
parent | Initial commit. (diff) | |
download | postfix-upstream/3.7.10.tar.xz postfix-upstream/3.7.10.zip |
Adding upstream version 3.7.10.upstream/3.7.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/util/allspace.c')
-rw-r--r-- | src/util/allspace.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/util/allspace.c b/src/util/allspace.c new file mode 100644 index 0000000..9a05347 --- /dev/null +++ b/src/util/allspace.c @@ -0,0 +1,50 @@ +/*++ +/* NAME +/* allspace 3 +/* SUMMARY +/* predicate if string is all space +/* SYNOPSIS +/* #include <stringops.h> +/* +/* int allspace(buffer) +/* const char *buffer; +/* DESCRIPTION +/* allspace() determines if its argument is an all-space 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" + +/* allspace - return true if string is all space */ + +int allspace(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) || !ISSPACE(ch)) + return (0); + return (1); +} |