diff options
Diffstat (limited to 'updater')
| -rw-r--r-- | updater/install.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/updater/install.c b/updater/install.c index c4f5e0341..ad895569e 100644 --- a/updater/install.c +++ b/updater/install.c @@ -23,6 +23,7 @@ #include <sys/mount.h> #include <sys/stat.h> #include <sys/types.h> +#include <sys/wait.h> #include <unistd.h> #include "cutils/misc.h" @@ -759,6 +760,52 @@ char* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) { return buffer; } +char* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc < 1) { + return ErrorAbort(state, "%s() expects at least 1 arg", name); + } + char** args = ReadVarArgs(state, argc, argv); + if (args == NULL) { + return NULL; + } + + char** args2 = malloc(sizeof(char*) * (argc+1)); + memcpy(args2, args, sizeof(char*) * argc); + args2[argc] = NULL; + + fprintf(stderr, "about to run program [%s] with %d args\n", args2[0], argc); + + pid_t child = fork(); + if (child == 0) { + execv(args2[0], args2); + fprintf(stderr, "run_program: execv failed: %s\n", strerror(errno)); + _exit(1); + } + int status; + waitpid(child, &status, 0); + if (WIFEXITED(status)) { + if (WEXITSTATUS(status) != 0) { + fprintf(stderr, "run_program: child exited with status %d\n", + WEXITSTATUS(status)); + } + } else if (WIFSIGNALED(status)) { + fprintf(stderr, "run_program: child terminated by signal %d\n", + WTERMSIG(status)); + } + + int i; + for (i = 0; i < argc; ++i) { + free(args[i]); + } + free(args); + free(args2); + + char buffer[20]; + sprintf(buffer, "%d", status); + + return strdup(buffer); +} + void RegisterInstallFunctions() { RegisterFunction("mount", MountFn); @@ -785,4 +832,6 @@ void RegisterInstallFunctions() { RegisterFunction("apply_patch_space", ApplyPatchFn); RegisterFunction("ui_print", UIPrintFn); + + RegisterFunction("run_program", RunProgramFn); } |