mirror of
https://github.com/drasko/codezero.git
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7ba7a2e796
Removed dependency on hard-coded pager id. Pager id is now passed as an environment string `pagerid' to tasks. Alternatively, this could take space in the utcb of each task.
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/*
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* Execve test.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <tests.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#include <alloca.h>
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#include <l4lib/ipcdefs.h>
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#define PAGE_SIZE 0x1000
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extern char _start_test_exec[];
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extern char _end_test_exec[];
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int exectest(pid_t parent_of_all)
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{
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int fd, err;
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void *exec_start = (void *)_start_test_exec;
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unsigned long size = _end_test_exec - _start_test_exec;
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char filename[128];
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char env_string1[30];
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char env_string2[30];
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int left, cnt;
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char *argv[5];
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char *envp[3];
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memset(filename, 0, 128);
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sprintf(filename, "/home/bahadir/execfile%d", getpid());
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/* First create a new file and write the executable data to that file */
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if ((fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, S_IRWXU)) < 0) {
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err = errno;
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test_printf("OPEN: %d, for %s\n", errno, filename);
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/*
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* If it is a minor error like EEXIST,
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* create one with different name
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*/
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if (errno == EEXIST) {
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sprintf(filename, "/home/bahadir/execfile%d-2",
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getpid());
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if ((fd = open(filename,
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O_RDWR | O_CREAT | O_TRUNC, S_IRWXU))
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< 0) {
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printf("OPEN: %d, failed twice, "
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"last time for %s\n",
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errno, filename);
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goto out_err;
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}
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} else
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goto out_err;
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}
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left = size;
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test_printf("Writing %x bytes to %s\n", left, filename);
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while (left != 0) {
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if ((cnt = write(fd, exec_start, left)) < 0)
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goto out_err;
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left -= cnt;
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}
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if ((err = close(fd)) < 0) {
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goto out_err;
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}
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#if 0
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/* Reopen */
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if ((fd = open(filename, O_RDONLY, S_IRWXU)) < 0) {
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err = errno;
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test_printf("OPEN: %d, for %s\n", errno, filename);
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}
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printf("Reopened %s\n", filename);
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buf = alloca(PAGE_SIZE);
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read(fd, buf, PAGE_SIZE);
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if (memcmp(exec_start, buf, PAGE_SIZE))
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printf("First page of read and written file doesn't match\n");
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else
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printf("First page matches.\n");
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#endif
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/* Set up some arguments */
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argv[0] = "FIRST ARG";
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argv[1] = "SECOND ARG";
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argv[2] = "THIRD ARG";
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argv[3] = "FOURTH ARG";
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argv[4] = 0;
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memset(env_string1, 0, 30);
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memset(env_string2, 0, 30);
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sprintf(env_string1, "parent_of_all=%d", parent_of_all);
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sprintf(env_string2, "pagerid=%d", pagerid);
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envp[0] = env_string1;
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envp[1] = env_string2;
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envp[2] = 0; /* This is important as the array needs to end with a null */
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/* Execute the file */
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err = execve(filename, argv, envp);
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out_err:
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printf("EXECVE failed with %d\n", err);
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printf("EXECVE TEST -- FAILED --\n");
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return 0;
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}
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