34 lines
565 B
C
34 lines
565 B
C
/* cuserid(3)
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*
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* Author: Terrence W. Holm Sept. 1987
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*/
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#include <lib.h>
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#include <pwd.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdio.h>
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#ifndef L_cuserid
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#define L_cuserid 9
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#endif
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char *cuserid(user_name)
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char *user_name;
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{
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PRIVATE char userid[L_cuserid];
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struct passwd *pw_entry;
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if (user_name == (char *)NULL) user_name = userid;
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pw_entry = getpwuid(geteuid());
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if (pw_entry == (struct passwd *)NULL) {
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*user_name = '\0';
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return((char *)NULL);
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}
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strcpy(user_name, pw_entry->pw_name);
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return(user_name);
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}
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