81 lines
1.5 KiB
C
81 lines
1.5 KiB
C
/*
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#progos: linux
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*/
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#include <unistd.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int main (int argc, char *argv[])
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{
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char buf[1024];
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char buf2[1024];
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int err;
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/* This is a special feature handled in the simulator. The "42"
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should be formed from getpid () if this was a real program. */
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err = readlink ("/proc/42/exe", buf, sizeof (buf));
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if (err < 0)
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{
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if (err == -1 && errno == ENOSYS)
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printf ("ENOSYS\n");
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printf ("xyzzy\n");
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exit (0);
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}
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/* Don't use an abort in the following; it might cause the printf to
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not make it all the way to output and make debugging more
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difficult. */
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/* We assume the program is called with no path, so we might need to
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prepend it. */
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if (getcwd (buf2, sizeof (buf2)) != buf2)
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{
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perror ("getcwd");
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exit (1);
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}
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if (argv[0][0] == '/')
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{
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#ifdef SYSROOTED
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if (strchr (argv[0] + 1, '/') != NULL)
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{
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printf ("%s != %s\n", argv[0], strrchr (argv[0] + 1, '/'));
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exit (1);
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}
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#endif
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if (strcmp (argv[0], buf) != 0)
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{
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printf ("%s != %s\n", buf, argv[0]);
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exit (1);
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}
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}
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else if (argv[0][0] != '.')
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{
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if (buf2[strlen (buf2) - 1] != '/')
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strcat (buf2, "/");
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strcat (buf2, argv[0]);
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if (strcmp (buf2, buf) != 0)
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{
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printf ("%s != %s\n", buf, buf2);
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exit (1);
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}
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}
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else
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{
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strcat (buf2, argv[0] + 1);
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if (strcmp (buf, buf2) != 0)
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{
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printf ("%s != %s\n", buf, buf2);
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exit (1);
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}
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}
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printf ("pass\n");
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exit (0);
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}
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