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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/username.c | |
parent | Initial commit. (diff) | |
download | postfix-upstream/3.4.23.tar.xz postfix-upstream/3.4.23.zip |
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/util/username.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/util/username.c b/src/util/username.c new file mode 100644 index 0000000..680161c --- /dev/null +++ b/src/util/username.c @@ -0,0 +1,47 @@ +/*++ +/* NAME +/* username 3 +/* SUMMARY +/* lookup name of real user +/* SYNOPSIS +/* #include <username.h> +/* +/* const char *username() +/* DESCRIPTION +/* username() jumps whatever system-specific hoops it takes to +/* get the name of the user who started the process. The result +/* is volatile. Make a copy if it is to be used for an appreciable +/* amount of time. +/* 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 <unistd.h> +#include <pwd.h> + +/* Utility library. */ + +#include "username.h" + +/* username - get name of user */ + +const char *username(void) +{ + uid_t uid; + struct passwd *pwd; + + uid = getuid(); + if ((pwd = getpwuid(uid)) == 0) + return (0); + return (pwd->pw_name); +} |