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commandhelper: Factor out printFds

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Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Tim Wiederhake 2021-02-01 12:27:54 +01:00 committed by Peter Krempa
parent 7aa36ccacc
commit 6fedbe37a2
1 changed files with 24 additions and 13 deletions
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37
tests/commandhelper.c
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@ -140,10 +140,32 @@ static int printEnvironment(FILE *log)
return ret; return ret;
} }
static int printFds(FILE *log)
{
long int open_max = sysconf(_SC_OPEN_MAX);
size_t i;
if (open_max < 0)
return -1;
for (i = 0; i < open_max; i++) {
int ignore;
if (i == fileno(log))
continue;
if (fcntl(i, F_GETFD, &ignore) == -1 && errno == EBADF)
continue;
fprintf(log, "FD:%zu\n", i);
}
return 0;
}
int main(int argc, char **argv) { int main(int argc, char **argv) {
struct Arguments *args = parseArguments(argc, argv); struct Arguments *args = parseArguments(argc, argv);
size_t i; size_t i;
int open_max;
char *cwd; char *cwd;
FILE *log = fopen(abs_builddir "/commandhelper.log", "w"); FILE *log = fopen(abs_builddir "/commandhelper.log", "w");
int ret = EXIT_FAILURE; int ret = EXIT_FAILURE;
@ -162,19 +184,8 @@ int main(int argc, char **argv) {
if (printEnvironment(log) != 0) if (printEnvironment(log) != 0)
goto cleanup; goto cleanup;
open_max = sysconf(_SC_OPEN_MAX); if (printFds(log) != 0)
if (open_max < 0)
goto cleanup; goto cleanup;
for (i = 0; i < open_max; i++) {
int f;
int closed;
if (i == fileno(log))
continue;
closed = fcntl(i, F_GETFD, &f) == -1 &&
errno == EBADF;
if (!closed)
fprintf(log, "FD:%zu\n", i);
}
while (true) { while (true) {
bool daemonized = getpgrp() != getppid(); bool daemonized = getpgrp() != getppid();