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make stdio open, read, and write operations cancellation points
[oweals/musl.git]
/
src
/
misc
/
cuserid.c
1
#define _GNU_SOURCE
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#include <pwd.h>
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#include <stdio.h>
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#include <unistd.h>
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char *cuserid(char *buf)
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{
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struct passwd pw, *ppw;
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long pwb[256];
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if (getpwuid_r(geteuid(), &pw, (void *)pwb, sizeof pwb, &ppw))
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return 0;
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snprintf(buf, L_cuserid, "%s", pw.pw_name);
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return buf;
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}