rpm/misc/getmntent.c

67 lines
1.3 KiB
C

#include "system.h"
#ifdef __aix__
#define COMMENTCHAR '*'
#else
#define COMMENTCHAR '#'
#endif
#if HAVE_STRUCT_MNTTAB
our_mntent * getmntent(FILE *filep) {
static struct mnttab entry;
static our_mntent item;
if (!fread(&entry, sizeof(entry), 1, filep)) return NULL;
item.our_mntdir = entry.mt_filsys;
return &item;
}
#else
our_mntent *getmntent(FILE *filep) {
static our_mntent item = { NULL };
char buf[1024], * start;
char * chptr;
if (item.our_mntdir) {
free(item.our_mntdir);
}
while (fgets(buf, sizeof(buf) - 1, filep)) {
/* chop off \n */
buf[strlen(buf) - 1] = '\0';
chptr = buf;
while (isspace(*chptr)) chptr++;
if (*chptr == COMMENTCHAR) continue;
# if __aix__
/* aix uses a screwed up file format */
if (*chptr == '/') {
start = chptr;
while (*chptr != ':') chptr++;
*chptr = '\0';
item.mnt_dir = strdup(start);
return &item;
}
# else
while (!isspace(*chptr) && (*chptr)) chptr++;
if (!*chptr) return NULL;
while (isspace(*chptr) && (*chptr)) chptr++;
if (!*chptr) return NULL;
start = chptr;
while (!isspace(*chptr) && (*chptr)) chptr++;
*chptr = '\0';
item.our_mntdir = strdup(start);
return &item;
# endif
}
return NULL;
}
#endif