52 lines
902 B
C
52 lines
902 B
C
/* logname - print login name of current user */
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#include <config.h>
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#if defined (HAVE_UNISTD_H)
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# include <unistd.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include "builtins.h"
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#include "shell.h"
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#if !defined (errno)
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extern int errno;
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#endif
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logname_builtin (list)
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WORD_LIST *list;
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{
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char *np;
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if (no_options (list))
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return (EX_USAGE);
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np = getlogin ();
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if (np == 0)
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{
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builtin_error ("cannot find username: %s", strerror (errno));
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return (EXECUTION_FAILURE);
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}
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printf ("%s\n", np);
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return (EXECUTION_SUCCESS);
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}
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char *logname_doc[] = {
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"write the current user's login name to the standard output",
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"and exit. logname ignores the LOGNAME and USER variables.",
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"logname ignores any non-option arguments.",
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(char *)NULL
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};
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struct builtin logname_struct = {
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"logname",
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logname_builtin,
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BUILTIN_ENABLED,
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logname_doc,
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"logname",
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0
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};
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