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author | An-Cheng Huang <ancheng@vyatta.com> | 2007-11-12 13:06:02 -0800 |
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committer | An-Cheng Huang <ancheng@vyatta.com> | 2007-11-12 13:06:02 -0800 |
commit | b7fc9e0f6d6105ba2203f219743d4b269415e84b (patch) | |
tree | ef6586dfc62798c2b17487b443864699aca55f31 /examples/loadables/logname.c | |
download | vyatta-bash-b7fc9e0f6d6105ba2203f219743d4b269415e84b.tar.gz vyatta-bash-b7fc9e0f6d6105ba2203f219743d4b269415e84b.zip |
initial import from bash_3.1dfsg.orig.tar.gz
Diffstat (limited to 'examples/loadables/logname.c')
-rw-r--r-- | examples/loadables/logname.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/examples/loadables/logname.c b/examples/loadables/logname.c new file mode 100644 index 0000000..00cfd19 --- /dev/null +++ b/examples/loadables/logname.c @@ -0,0 +1,52 @@ +/* logname - print login name of current user */ + +#include <config.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <stdio.h> +#include <errno.h> + +#include "builtins.h" +#include "shell.h" + +#if !defined (errno) +extern int errno; +#endif + +logname_builtin (list) + WORD_LIST *list; +{ + char *np; + + if (no_options (list)) + return (EX_USAGE); + + np = getlogin (); + if (np == 0) + { + builtin_error ("cannot find username: %s", strerror (errno)); + return (EXECUTION_FAILURE); + } + printf ("%s\n", np); + return (EXECUTION_SUCCESS); +} + +char *logname_doc[] = { + "write the current user's login name to the standard output", + "and exit. logname ignores the LOGNAME and USER variables.", + "logname ignores any non-option arguments.", + (char *)NULL +}; + +struct builtin logname_struct = { + "logname", + logname_builtin, + BUILTIN_ENABLED, + logname_doc, + "logname", + 0 +}; + |