| /* vi: set sw=4 ts=4: */ |
| /* |
| * Android/bionic glue. |
| * |
| * Copyright (C) 2010 by Dylan Simon <dylan@dylex.net> |
| * |
| * Licensed under GPLv2, see file LICENSE in this tarball for details. |
| */ |
| |
| #include <stdlib.h> |
| #include "libbb.h" |
| |
| #ifndef BIONIC_ICS |
| int clearenv(void) |
| { |
| char **P = environ; |
| |
| /* should never be NULL */ |
| if (!environ) |
| environ = (char **)xzalloc(sizeof(char *)); |
| |
| if (P != NULL) { |
| for (; *P; ++P) |
| *P = NULL; |
| } |
| return 0; |
| } |
| #endif |
| |
| /* no /etc/shells anyway */ |
| char *getusershell() { return NULL; } |
| void setusershell() {} |
| void endusershell() {} |
| |
| struct mntent *getmntent_r(FILE *fp, struct mntent *mnt, char *buf, int buflen) |
| { |
| char *tokp = NULL, *s; |
| |
| do { |
| if (!fgets(buf, buflen, fp)) |
| return NULL; |
| tokp = 0; |
| s = strtok_r(buf, " \t\n", &tokp); |
| } while (!s || *s == '#'); |
| |
| mnt->mnt_fsname = s; |
| mnt->mnt_freq = mnt->mnt_passno = 0; |
| if (!(mnt->mnt_dir = strtok_r(NULL, " \t\n", &tokp))) |
| return NULL; |
| if (!(mnt->mnt_type = strtok_r(NULL, " \t\n", &tokp))) |
| return NULL; |
| if (!(mnt->mnt_opts = strtok_r(NULL, " \t\n", &tokp))) |
| mnt->mnt_opts = ""; |
| else if ((s = strtok_r(NULL, " \t\n", &tokp))) |
| { |
| mnt->mnt_freq = atoi(s); |
| if ((s = strtok_r(NULL, " \t\n", &tokp))) |
| mnt->mnt_passno = atoi(s); |
| } |
| |
| return mnt; |
| } |
| |
| /* override definition in bionic/stubs.c */ |
| struct mntent *getmntent(FILE *fp) |
| { |
| static struct mntent mnt; |
| static char buf[256]; |
| return getmntent_r(fp, &mnt, buf, 256); |
| } |
| |
| /* not used anyway */ |
| int addmntent(FILE *fp UNUSED_PARAM, const struct mntent *mnt UNUSED_PARAM) |
| { |
| errno = ENOENT; |
| return 1; |
| } |
| |
| char *hasmntopt(const struct mntent *mnt, const char *opt) |
| { |
| char *o = mnt->mnt_opts; |
| size_t l = strlen(opt); |
| |
| while ((o = strstr(o, opt)) && |
| ((o > mnt->mnt_opts && o[-1] != ',') || |
| (o[l] != 0 && o[l] != ',' && o[l] != '='))); |
| return o; |
| } |
| |
| /* declared in grp.h, but not necessary */ |
| #if !ENABLE_USE_BB_PWD_GRP |
| int setpwent() { return 0; } |
| void setgrent() {} |
| void endgrent() {} |
| #endif |
| |