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| author | Andrew G. Morgan <morgan@kernel.org> | 2021-11-09 07:28:59 -0800 |
|---|---|---|
| committer | Andrew G. Morgan <morgan@kernel.org> | 2021-11-09 07:28:59 -0800 |
| commit | 2e4335523e0a705b4ce6b49b1bfccfe519f559ce (patch) | |
| tree | 582d4037086e4558bb5370deb62748de567ce867 | |
| parent | 95085598764ca6c874dc1ee48364dbd2921fc000 (diff) | |
| download | libcap-2e4335523e0a705b4ce6b49b1bfccfe519f559ce.tar.gz | |
Include some helpful debugging for capso.so
This makes explaining how the program works more straightforward.
That is:
make CAPSO_DEBUG=-DCAPSO_DEBUG clean all
builds a version that prints out some helpful info and pauses so
the user can observe the capability state of the process tree at
different stages of execution.
Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
| -rw-r--r-- | contrib/capso/Makefile | 2 | ||||
| -rw-r--r-- | contrib/capso/capso.c | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/contrib/capso/Makefile b/contrib/capso/Makefile index 87ed34b..70af7f9 100644 --- a/contrib/capso/Makefile +++ b/contrib/capso/Makefile @@ -2,7 +2,7 @@ topdir=$(shell pwd)/../.. include ../../Make.Rules # Always build sources this way: -CFLAGS += -fPIC +CFLAGS += -fPIC $(CAPSO_DEBUG) all: bind diff --git a/contrib/capso/capso.c b/contrib/capso/capso.c index 3f2f3ba..2a357c0 100644 --- a/contrib/capso/capso.c +++ b/contrib/capso/capso.c @@ -138,6 +138,11 @@ int bind80(const char *hostname) return fd; } +#ifdef CAPSO_DEBUG + printf("application bind80(%s) attempt failed\n", hostname); + sleep(30); +#endif + iov = calloc(1, sizeof(struct iovec)); if (iov == NULL) { return -1; @@ -226,6 +231,11 @@ SO_MAIN(int argc, char **argv) char data[CMSG_SPACE(sizeof(fd))]; char junk[1]; +#ifdef CAPSO_DEBUG + printf("invoking %s standalone\n", argv[0]); + sleep(30); +#endif + if (argv != NULL) { cmd = argv[0]; } @@ -280,5 +290,10 @@ SO_MAIN(int argc, char **argv) perror("failed to write fd"); } +#ifdef CAPSO_DEBUG + printf("exiting standalone %s\n", argv[0]); + sleep(30); +#endif + exit(0); } |