/*
* read one file out of either /etc or the user's home directory.
* fileToRead tells which file to read.
*
* return 1 if it's time to reset the fileToRead (no more files to read).
*/
int ReadOneFile(int fileToRead)
{
char *dir = "/etc";
DIR *fd = opendir(dir);
int resetCount = 0;
#ifdef SOLARIS
/* grumble, Solaris does not define struct dirent to be the full length */
typedef union {
unsigned char space[sizeof(struct dirent) + MAXNAMELEN];
struct dirent dir;
} dirent_hack;
dirent_hack entry, firstEntry;
#define entry_dir entry.dir
#else
struct dirent entry, firstEntry;
#define entry_dir entry
#endif
int i, error = -1;
if (fd == NULL) {
dir = getenv("HOME");
if (dir) {
fd = opendir(dir);
}
}
if (fd == NULL) {
return 1;
}
for (i=0; i <= fileToRead; i++) {
struct dirent *result = NULL;
do {
error = readdir_r(fd, &entry_dir, &result);
} while (error == 0 && result != NULL &&
!ReadFileOK(dir,&result->d_name[0]));
if (error != 0 || result == NULL) {
resetCount = 1; /* read to the end, start again at the beginning */
if (i != 0) {
/* ran out of entries in the directory, use the first one */
entry = firstEntry;
error = 0;
break;
}
/* if i== 0, there were no readable entries in the directory */
break;
}
if (i==0) {
/* save the first entry in case we run out of entries */
firstEntry = entry;
}
}
if (error == 0) {
char filename[PATH_MAX];
int count = snprintf(filename, sizeof filename,
"%s/%s",dir, &entry_dir.d_name[0]);
if (count >= 1) {
ReadSingleFile(filename);
}
}
closedir(fd);
return resetCount;
}
/*
* read one file out of either /etc or the user's home directory.
* fileToRead tells which file to read.
*
* return 1 if it's time to reset the fileToRead (no more files to read).
*/
static int
ReadOneFile(int fileToRead)
{
char *dir = "/etc";
DIR *fd = opendir(dir);
int resetCount = 0;
struct dirent *entry;
#if defined(__sun)
char firstName[256];
#else
char firstName[NAME_MAX + 1];
#endif
const char *name = NULL;
int i;
if (fd == NULL) {
dir = PR_GetEnvSecure("HOME");
if (dir) {
fd = opendir(dir);
}
}
if (fd == NULL) {
return 1;
}
firstName[0] = '\0';
for (i=0; i <= fileToRead; i++) {
do {
/* readdir() isn't guaranteed to be thread safe on every platform;
* this code assumes the same directory isn't read concurrently.
* This usage is confirmed safe on Linux, see bug 1254334. */
entry = readdir(fd);
} while (entry != NULL && !ReadFileOK(dir, &entry->d_name[0]));
if (entry == NULL) {
resetCount = 1; /* read to the end, start again at the beginning */
if (firstName[0]) {
/* ran out of entries in the directory, use the first one */
name = firstName;
}
break;
}
name = entry->d_name;
if (i == 0) {
/* copy the name of the first in case we run out of entries */
PORT_Assert(PORT_Strlen(name) < sizeof(firstName));
PORT_Strncpy(firstName, name, sizeof(firstName) - 1);
firstName[sizeof(firstName) - 1] = '\0';
}
}
if (name) {
char filename[PATH_MAX];
int count = snprintf(filename, sizeof(filename), "%s/%s",dir, name);
if (count >= 1) {
ReadSingleFile(filename);
}
}
closedir(fd);
return resetCount;
}