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tests: Check return values of write() and dup2().

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This commit is contained in:
Simon Ruderich
2013-06-21 18:49:11 +02:00
parent 0d7f306898
commit 219a9882ba
3 changed files with 38 additions and 18 deletions
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17
tests/example_exec.c
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@@ -27,6 +27,7 @@
#include <string.h>
#include <unistd.h>
#include "example.h"
#include "../src/compiler.h"
@@ -123,7 +124,7 @@ int main(int argc unused, char **argv) {
printf("\nCHECKING COLORING.\n\n");
fflush(stdout);
dup2(2, 3);
xdup2(2, 3);
char *args[] = { argv0, NULL };
char *envp[] = { ldpreload, NULL };
@@ -131,24 +132,24 @@ int main(int argc unused, char **argv) {
execve(argv[0], args, envp);
return EXIT_FAILURE;
} else if (!skip--) {
dup2(2, 4);
xdup2(2, 4);
execl(argv[0], argv0, NULL);
return EXIT_FAILURE;
} else if (!skip--) {
dup2(2, 5);
xdup2(2, 5);
execlp(argv[0], argv0, NULL);
return EXIT_FAILURE;
} else if (!skip--) {
dup2(2, 6);
xdup2(2, 6);
char *envp[] = { ldpreload, NULL };
execle(argv[0], argv0, NULL, envp);
return EXIT_FAILURE;
} else if (!skip--) {
dup2(2, 7);
xdup2(2, 7);
/* Test closing a few descriptors. */
close(5);
@@ -159,7 +160,7 @@ int main(int argc unused, char **argv) {
execv(argv[0], args);
return EXIT_FAILURE;
} else if (!skip--) {
dup2(2, 8);
xdup2(2, 8);
/* And a few more. */
close(7);
@@ -177,7 +178,7 @@ int main(int argc unused, char **argv) {
close(3);
close(8);
dup2(2, 5);
xdup2(2, 5);
char *args[] = { argv0, NULL };
char *envp[] = { ldpreload, "COLORED_STDERR_FDS=5,", NULL };
@@ -188,7 +189,7 @@ int main(int argc unused, char **argv) {
char *args[] = { argv0, NULL };
char *envp[] = { ldpreload, NULL };
dup2(5, 6);
xdup2(5, 6);
close(5);
execve(argv[0], args, envp);