From 2c73156874bd0c222f414a2988271c4870d4293b Mon Sep 17 00:00:00 2001 From: coreyhuinker Date: Thu, 12 Jan 2023 23:04:31 -0500 Subject: [PATCH v6 2/3] Add wait_result_to_exit_code(). --- src/common/wait_error.c | 15 +++++++++++++++ src/include/port.h | 1 + 2 files changed, 16 insertions(+) diff --git a/src/common/wait_error.c b/src/common/wait_error.c index 4a3c3c61af..1eb7ff3fa2 100644 --- a/src/common/wait_error.c +++ b/src/common/wait_error.c @@ -127,3 +127,18 @@ wait_result_is_any_signal(int exit_status, bool include_command_not_found) return true; return false; } + +/* + * Return the POSIX exit code (0 to 255) that corresponds to the argument. + * The argument is a return code returned by wait(2) or waitpid(2), which + * also applies to pclose(3) and system(3). + */ +int +wait_result_to_exit_code(int exit_status) +{ + if (WIFEXITED(exit_status)) + return WEXITSTATUS(exit_status); + if (WIFSIGNALED(exit_status)) + return WTERMSIG(exit_status); + return 0; +} diff --git a/src/include/port.h b/src/include/port.h index e66193bed9..1b119a3c56 100644 --- a/src/include/port.h +++ b/src/include/port.h @@ -495,6 +495,7 @@ extern char *escape_single_quotes_ascii(const char *src); extern char *wait_result_to_str(int exitstatus); extern bool wait_result_is_signal(int exit_status, int signum); extern bool wait_result_is_any_signal(int exit_status, bool include_command_not_found); +extern int wait_result_to_exit_code(int exit_status); /* * Interfaces that we assume all Unix system have. We retain individual macros -- 2.39.0