eclair snapshot
diff --git a/updater/install.c b/updater/install.c
index c4f5e03..aa80d75 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"
@@ -85,6 +86,8 @@
} else {
if (mount(location, mount_point, type,
MS_NOATIME | MS_NODEV | MS_NODIRATIME, "") < 0) {
+ fprintf(stderr, "%s: failed to mount %s at %s: %s\n",
+ name, location, mount_point, strerror(errno));
result = strdup("");
} else {
result = mount_point;
@@ -347,6 +350,7 @@
// symlink target src1 src2 ...
+// unlinks any previously existing src1, src2, etc before creating symlinks.
char* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc == 0) {
return ErrorAbort(state, "%s() expects 1+ args, got %d", name, argc);
@@ -363,7 +367,16 @@
int i;
for (i = 0; i < argc-1; ++i) {
- symlink(target, srcs[i]);
+ if (unlink(srcs[i]) < 0) {
+ if (errno != ENOENT) {
+ fprintf(stderr, "%s: failed to remove %s: %s\n",
+ name, srcs[i], strerror(errno));
+ }
+ }
+ if (symlink(target, srcs[i]) < 0) {
+ fprintf(stderr, "%s: failed to symlink %s to %s: %s\n",
+ name, srcs[i], target, strerror(errno));
+ }
free(srcs[i]);
}
free(srcs);
@@ -423,8 +436,14 @@
}
for (i = 3; i < argc; ++i) {
- chown(args[i], uid, gid);
- chmod(args[i], mode);
+ if (chown(args[i], uid, gid) < 0) {
+ fprintf(stderr, "%s: chown of %s to %d %d failed: %s\n",
+ name, args[i], uid, gid, strerror(errno));
+ }
+ if (chmod(args[i], mode) < 0) {
+ fprintf(stderr, "%s: chmod of %s to %o failed: %s\n",
+ name, args[i], mode, strerror(errno));
+ }
}
}
result = strdup("");
@@ -759,6 +778,52 @@
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 +850,6 @@
RegisterFunction("apply_patch_space", ApplyPatchFn);
RegisterFunction("ui_print", UIPrintFn);
+
+ RegisterFunction("run_program", RunProgramFn);
}