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simple geteuid test
[tridge/junkcode.git]
/
getegid.c
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <errno.h>
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int main(void)
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{
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gid_t gid = (gid_t)-2;
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if (setegid(gid) != 0) {
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perror("setegid");
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exit(1);
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}
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errno = 0;
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gid = getegid();
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if (gid == (gid_t)-1 && errno == 2) {
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printf("oh oh - returned a gid as an errno?!\n");
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exit(1);
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}
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if (gid != (gid_t)-2) {
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printf("Failed to set egid!?\n");
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exit(1);
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}
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if (errno != 0) {
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printf("getegid overwrote errno - bad stuff\n");
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exit(1);
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}
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return 0;
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}