/* * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <mntent.h> libc_hidden_proto(getmntent_r) libc_hidden_proto(setmntent) libc_hidden_proto(endmntent) libc_hidden_proto(strstr) libc_hidden_proto(strtok_r) libc_hidden_proto(atoi) libc_hidden_proto(fopen) libc_hidden_proto(fclose) libc_hidden_proto(fseek) libc_hidden_proto(fgets) libc_hidden_proto(abort) libc_hidden_proto(fprintf) #ifdef __UCLIBC_HAS_THREADS__ # include <pthread.h> static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER; #endif #define LOCK __pthread_mutex_lock(&mylock) #define UNLOCK __pthread_mutex_unlock(&mylock) /* Reentrant version of getmntent. */ struct mntent *getmntent_r (FILE *filep, struct mntent *mnt, char *buff, int bufsize) { char *cp, *ptrptr; const char *sep = " \t\n"; if (!filep || !mnt || !buff) return NULL; /* Loop on the file, skipping comment lines. - FvK 03/07/93 */ while ((cp = fgets(buff, bufsize, filep)) != NULL) { if (buff[0] == '#' || buff[0] == '\n') continue; break; } /* At the EOF, the buffer should be unchanged. We should * check the return value from fgets (). */ if (cp == NULL) return NULL; ptrptr = 0; mnt->mnt_fsname = strtok_r(buff, sep, &ptrptr); if (mnt->mnt_fsname == NULL) return NULL; mnt->mnt_dir = strtok_r(NULL, sep, &ptrptr); if (mnt->mnt_dir == NULL) return NULL; mnt->mnt_type = strtok_r(NULL, sep, &ptrptr); if (mnt->mnt_type == NULL) return NULL; mnt->mnt_opts = strtok_r(NULL, sep, &ptrptr); if (mnt->mnt_opts == NULL) mnt->mnt_opts = ""; cp = strtok_r(NULL, sep, &ptrptr); mnt->mnt_freq = (cp != NULL) ? atoi(cp) : 0; cp = strtok_r(NULL, sep, &ptrptr); mnt->mnt_passno = (cp != NULL) ? atoi(cp) : 0; return mnt; } libc_hidden_def(getmntent_r) struct mntent *getmntent(FILE * filep) { struct mntent *tmp; static char *buff = NULL; static struct mntent mnt; LOCK; if (!buff) { buff = malloc(BUFSIZ); if (!buff) abort(); } tmp = getmntent_r(filep, &mnt, buff, BUFSIZ); UNLOCK; return(tmp); } int addmntent(FILE * filep, const struct mntent *mnt) { if (fseek(filep, 0, SEEK_END) < 0) return 1; if (fprintf (filep, "%s %s %s %s %d %d\n", mnt->mnt_fsname, mnt->mnt_dir, mnt->mnt_type, mnt->mnt_opts, mnt->mnt_freq, mnt->mnt_passno) < 1) return 1; return 0; } char *hasmntopt(const struct mntent *mnt, const char *opt) { return strstr(mnt->mnt_opts, opt); } FILE *setmntent(const char *name, const char *mode) { return fopen(name, mode); } libc_hidden_def(setmntent) int endmntent(FILE * filep) { if (filep != NULL) fclose(filep); return 1; } libc_hidden_def(endmntent)