diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fs.c | 184 |
1 files changed, 184 insertions, 0 deletions
@@ -22,6 +22,9 @@ #include <sys/stat.h> #include <sys/types.h> #include <sys/sysmacros.h> +#include <grp.h> +#include <pwd.h> +#include <glob.h> #include "../module.h" @@ -655,6 +658,183 @@ uc_fs_chdir(uc_vm *vm, size_t nargs) return ucv_boolean_new(true); } +static uc_value_t * +uc_fs_chmod(uc_vm *vm, size_t nargs) +{ + uc_value_t *path = uc_get_arg(0); + uc_value_t *mode = uc_get_arg(1); + + if (ucv_type(path) != UC_STRING || + ucv_type(mode) != UC_INTEGER) + err_return(EINVAL); + + if (chmod(ucv_string_get(path), (mode_t)ucv_int64_get(mode)) == -1) + err_return(errno); + + return ucv_boolean_new(true); +} + +static bool +uc_fs_resolve_user(uc_value_t *v, uid_t *uid) +{ + struct passwd *pw = NULL; + int64_t n; + char *s; + + *uid = (uid_t)-1; + + switch (ucv_type(v)) { + case UC_INTEGER: + n = ucv_int64_get(v); + + if (n < -1) { + errno = ERANGE; + + return false; + } + + *uid = (uid_t)n; + + return true; + + case UC_STRING: + s = ucv_string_get(v); + pw = getpwnam(s); + + if (!pw) { + errno = ENOENT; + + return false; + } + + *uid = pw->pw_uid; + + return true; + + case UC_NULL: + return true; + + default: + errno = EINVAL; + + return false; + } +} + +static bool +uc_fs_resolve_group(uc_value_t *v, gid_t *gid) +{ + struct group *gr = NULL; + int64_t n; + char *s; + + *gid = (gid_t)-1; + + switch (ucv_type(v)) { + case UC_INTEGER: + n = ucv_int64_get(v); + + if (n < -1) { + errno = ERANGE; + + return false; + } + + *gid = (gid_t)n; + + return true; + + case UC_STRING: + s = ucv_string_get(v); + gr = getgrnam(s); + + if (!gr) { + errno = ENOENT; + + return false; + } + + *gid = gr->gr_gid; + + return true; + + case UC_NULL: + return true; + + default: + errno = EINVAL; + + return false; + } +} + +static uc_value_t * +uc_fs_chown(uc_vm *vm, size_t nargs) +{ + uc_value_t *path = uc_get_arg(0); + uc_value_t *user = uc_get_arg(1); + uc_value_t *group = uc_get_arg(2); + uid_t uid; + gid_t gid; + + if (ucv_type(path) != UC_STRING) + err_return(EINVAL); + + if (!uc_fs_resolve_user(user, &uid) || + !uc_fs_resolve_group(group, &gid)) + return NULL; + + if (chown(ucv_string_get(path), uid, gid) == -1) + return NULL; + + return ucv_boolean_new(true); +} + +static uc_value_t * +uc_fs_rename(uc_vm *vm, size_t nargs) +{ + uc_value_t *oldpath = uc_get_arg(0); + uc_value_t *newpath = uc_get_arg(1); + + if (ucv_type(oldpath) != UC_STRING || + ucv_type(newpath) != UC_STRING) + err_return(EINVAL); + + if (rename(ucv_string_get(oldpath), ucv_string_get(newpath))) + return NULL; + + return ucv_boolean_new(true); +} + +static uc_value_t * +uc_fs_glob(uc_vm *vm, size_t nargs) +{ + uc_value_t *pat, *arr; + glob_t gl = { 0 }; + size_t i; + + for (i = 0; i < nargs; i++) { + pat = uc_get_arg(i); + + if (ucv_type(pat) != UC_STRING) { + globfree(&gl); + err_return(EINVAL); + } + + glob(ucv_string_get(pat), i ? GLOB_APPEND : 0, NULL, &gl); + } + + arr = ucv_array_new(vm); + + for (i = 0; i < gl.gl_pathc; i++) + ucv_array_push(arr, ucv_string_new(gl.gl_pathv[i])); + + globfree(&gl); + + return arr; +} + + static const uc_cfunction_list proc_fns[] = { { "read", uc_fs_pread }, { "write", uc_fs_pwrite }, @@ -693,6 +873,10 @@ static const uc_cfunction_list global_fns[] = { { "unlink", uc_fs_unlink }, { "getcwd", uc_fs_getcwd }, { "chdir", uc_fs_chdir }, + { "chmod", uc_fs_chmod }, + { "chown", uc_fs_chown }, + { "rename", uc_fs_rename }, + { "glob", uc_fs_glob } }; |