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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/alldig.c | |
parent | Initial commit. (diff) | |
download | postfix-b7c15c31519dc44c1f691e0466badd556ffe9423.tar.xz postfix-b7c15c31519dc44c1f691e0466badd556ffe9423.zip |
Adding upstream version 3.7.10.upstream/3.7.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/util/alldig.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/util/alldig.c b/src/util/alldig.c new file mode 100644 index 0000000..cabe5c3 --- /dev/null +++ b/src/util/alldig.c @@ -0,0 +1,73 @@ +/*++ +/* NAME +/* alldig 3 +/* SUMMARY +/* predicate if string is all numerical +/* SYNOPSIS +/* #include <stringops.h> +/* +/* int alldig(string) +/* const char *string; +/* +/* int allalnum(string) +/* const char *string; +/* DESCRIPTION +/* alldig() determines if its argument is an all-numerical string. +/* +/* allalnum() determines if its argument is an all-alphanumerical +/* string. +/* SEE ALSO +/* An alldig() routine appears in Brian W. Kernighan, P.J. Plauger: +/* "Software Tools", Addison-Wesley 1976. +/* 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 +/* +/* Wietse Venema +/* Google, Inc. +/* 111 8th Avenue +/* New York, NY 10011, USA +/*--*/ + +/* System library. */ + +#include <sys_defs.h> +#include <ctype.h> + +/* Utility library. */ + +#include <stringops.h> + +/* alldig - return true if string is all digits */ + +int alldig(const char *string) +{ + const char *cp; + + if (*string == 0) + return (0); + for (cp = string; *cp != 0; cp++) + if (!ISDIGIT(*cp)) + return (0); + return (1); +} + +/* allalnum - return true if string is all alphanum */ + +int allalnum(const char *string) +{ + const char *cp; + + if (*string == 0) + return (0); + for (cp = string; *cp != 0; cp++) + if (!ISALNUM(*cp)) + return (0); + return (1); +} |