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Diffstat (limited to 'usr/src/lib/nsswitch/files/common/files_common.c')
-rw-r--r--usr/src/lib/nsswitch/files/common/files_common.c142
1 files changed, 109 insertions, 33 deletions
diff --git a/usr/src/lib/nsswitch/files/common/files_common.c b/usr/src/lib/nsswitch/files/common/files_common.c
index bdf03a3ca9..0f89f25d0b 100644
--- a/usr/src/lib/nsswitch/files/common/files_common.c
+++ b/usr/src/lib/nsswitch/files/common/files_common.c
@@ -41,6 +41,7 @@
#include <poll.h>
#include <unistd.h>
#include <sys/stat.h>
+#include <sys/mman.h>
/*ARGSUSED*/
nss_status_t
@@ -69,7 +70,7 @@ _nss_files_endent(be, dummy)
void *dummy;
{
if (be->f != 0) {
- fclose(be->f);
+ (void) fclose(be->f);
be->f = 0;
}
if (be->buf != 0) {
@@ -186,7 +187,7 @@ _nss_files_do_all(be, args, filter, func)
} while (res == NSS_NOTFOUND);
- _nss_files_endent(be, 0);
+ (void) _nss_files_endent(be, 0);
return (res);
}
@@ -208,6 +209,8 @@ _nss_files_XY_all(be, args, netdb, filter, check)
int parsestat;
int (*func)();
+ if (filter != NULL && *filter == '\0')
+ return (NSS_NOTFOUND);
if (be->buf == 0 &&
(be->buf = malloc(be->minbuf)) == 0) {
return (NSS_UNAVAIL); /* really panic, malloc failed */
@@ -230,7 +233,7 @@ _nss_files_XY_all(be, args, netdb, filter, check)
be->minbuf)) < 0) {
/* End of file */
args->returnval = 0;
- args->erange = 0;
+ args->returnlen = 0;
break;
}
if (filter != 0 && strstr(instr, filter) == 0) {
@@ -277,17 +280,21 @@ _nss_files_XY_all(be, args, netdb, filter, check)
}
args->returnval = 0;
+ args->returnlen = 0;
+
+ if (check != NULL && (*check)(args, instr, linelen) == 0)
+ continue;
func = args->str2ent;
parsestat = (*func)(instr, linelen, args->buf.result,
args->buf.buffer, args->buf.buflen);
if (parsestat == NSS_STR_PARSE_SUCCESS) {
- args->returnval = args->buf.result;
- if (check == 0 || (*check)(args)) {
- res = NSS_SUCCESS;
- break;
- }
+ args->returnval = (args->buf.result != NULL)?
+ args->buf.result : args->buf.buffer;
+ args->returnlen = linelen;
+ res = NSS_SUCCESS;
+ break;
} else if (parsestat == NSS_STR_PARSE_ERANGE) {
args->erange = 1;
break;
@@ -339,15 +346,22 @@ _nss_files_hash_destroy(files_hash_t *fhp)
extern void __nss_use_files_hash(void);
#endif /* pic */
+/*ARGSUSED*/
nss_status_t
_nss_files_XY_hash(files_backend_ptr_t be, nss_XbyY_args_t *args,
int netdb, files_hash_t *fhp, int hashop, files_XY_check_func check)
{
+ /* LINTED E_FUNC_VAR_UNUSED */
int fd, retries, ht;
+ /* LINTED E_FUNC_VAR_UNUSED */
uint_t hash, line, f;
+ /* LINTED E_FUNC_VAR_UNUSED */
files_hashent_t *hp, *htab;
+ /* LINTED E_FUNC_VAR_UNUSED */
char *cp, *first, *last;
+ /* LINTED E_FUNC_VAR_UNUSED */
nss_XbyY_args_t xargs;
+ /* LINTED E_FUNC_VAR_UNUSED */
struct stat64 st;
#ifndef PIC
@@ -375,26 +389,30 @@ retry:
st.st_mtim.tv_nsec == fhp->fh_mtime.tv_nsec &&
fhp->fh_table != NULL) {
htab = &fhp->fh_table[hashop * fhp->fh_size];
- hash = fhp->fh_hash_func[hashop](args, 1);
+ hash = fhp->fh_hash_func[hashop](args, 1, NULL, 0);
for (hp = htab[hash % fhp->fh_size].h_first; hp != NULL;
hp = hp->h_next) {
if (hp->h_hash != hash)
continue;
line = hp - htab;
+ if ((*check)(args, fhp->fh_line[line].l_start,
+ fhp->fh_line[line].l_len) == 0)
+ continue;
if ((*args->str2ent)(fhp->fh_line[line].l_start,
fhp->fh_line[line].l_len, args->buf.result,
args->buf.buffer, args->buf.buflen) ==
NSS_STR_PARSE_SUCCESS) {
- args->returnval = args->buf.result;
- if ((*check)(args)) {
- mutex_unlock(&fhp->fh_lock);
- return (NSS_SUCCESS);
- }
+ args->returnval = (args->buf.result)?
+ args->buf.result:args->buf.buffer;
+ args->returnlen = fhp->fh_line[line].l_len;
+ mutex_unlock(&fhp->fh_lock);
+ return (NSS_SUCCESS);
} else {
args->erange = 1;
}
}
args->returnval = 0;
+ args->returnlen = 0;
mutex_unlock(&fhp->fh_lock);
return (NSS_NOTFOUND);
}
@@ -461,14 +479,6 @@ retry:
if (fhp->fh_line == NULL || fhp->fh_table == NULL)
goto unavail;
- xargs = *args;
- xargs.buf.result = malloc(fhp->fh_resultsize + fhp->fh_bufsize);
- if (xargs.buf.result == NULL)
- goto unavail;
- xargs.buf.buffer = (char *)xargs.buf.result + fhp->fh_resultsize;
- xargs.buf.buflen = fhp->fh_bufsize;
- xargs.returnval = xargs.buf.result;
-
line = 0;
cp = fhp->fh_file_start;
while (cp < fhp->fh_file_end) {
@@ -494,18 +504,14 @@ retry:
--last;
*++last = '\0';
}
- if ((*xargs.str2ent)(first, last - first,
- xargs.buf.result, xargs.buf.buffer, xargs.buf.buflen) !=
- NSS_STR_PARSE_SUCCESS)
- continue;
for (ht = 0; ht < fhp->fh_nhtab; ht++) {
hp = &fhp->fh_table[ht * fhp->fh_size + line];
- hp->h_hash = fhp->fh_hash_func[ht](&xargs, 0);
+ hp->h_hash = fhp->fh_hash_func[ht](&xargs, 0, first,
+ last - first);
}
fhp->fh_line[line].l_start = first;
fhp->fh_line[line++].l_len = last - first;
}
- free(xargs.buf.result);
/*
* Populate the hash tables in reverse order so that the hash chains
@@ -561,13 +567,13 @@ _nss_files_destr(be, dummy)
{
if (be != 0) {
if (be->f != 0) {
- _nss_files_endent(be, 0);
+ (void) _nss_files_endent(be, 0);
}
if (be->hashinfo != NULL) {
- mutex_lock(&be->hashinfo->fh_lock);
+ (void) mutex_lock(&be->hashinfo->fh_lock);
if (--be->hashinfo->fh_refcnt == 0)
_nss_files_hash_destroy(be->hashinfo);
- mutex_unlock(&be->hashinfo->fh_lock);
+ (void) mutex_unlock(&be->hashinfo->fh_lock);
}
free(be);
}
@@ -596,10 +602,80 @@ _nss_files_constr(ops, n_ops, filename, min_bufsize, fhp)
be->hashinfo = fhp;
if (fhp != NULL) {
- mutex_lock(&fhp->fh_lock);
+ (void) mutex_lock(&fhp->fh_lock);
fhp->fh_refcnt++;
- mutex_unlock(&fhp->fh_lock);
+ (void) mutex_unlock(&fhp->fh_lock);
}
return ((nss_backend_t *)be);
}
+
+int
+_nss_files_check_name_colon(nss_XbyY_args_t *argp, const char *line,
+ int linelen)
+{
+ const char *linep, *limit;
+ const char *keyp = argp->key.name;
+
+ linep = line;
+ limit = line + linelen;
+ while (*keyp && linep < limit && *keyp == *linep) {
+ keyp++;
+ linep++;
+ }
+ return (linep < limit && *keyp == '\0' && *linep == ':');
+}
+
+/*
+ * This routine is used to parse lines of the form:
+ * name number aliases
+ * It returns 1 if the key in argp matches any one of the
+ * names in the line, otherwise 0
+ * Used by rpc, networks, protocols
+ */
+int
+_nss_files_check_name_aliases(nss_XbyY_args_t *argp, const char *line,
+ int linelen)
+{
+ const char *limit, *linep, *keyp;
+
+ linep = line;
+ limit = line + linelen;
+ keyp = argp->key.name;
+
+ /* compare name */
+ while (*keyp && linep < limit && !isspace(*linep) && *keyp == *linep) {
+ keyp++;
+ linep++;
+ }
+ if (*keyp == '\0' && linep < limit && isspace(*linep))
+ return (1);
+ /* skip remainder of the name, if any */
+ while (linep < limit && !isspace(*linep))
+ linep++;
+ /* skip the delimiting spaces */
+ while (linep < limit && isspace(*linep))
+ linep++;
+ /* compare with the aliases */
+ while (linep < limit) {
+ /*
+ * 1st pass: skip number
+ * Other passes: skip remainder of the alias name, if any
+ */
+ while (linep < limit && !isspace(*linep))
+ linep++;
+ /* skip the delimiting spaces */
+ while (linep < limit && isspace(*linep))
+ linep++;
+ /* compare with the alias name */
+ keyp = argp->key.name;
+ while (*keyp && linep < limit && !isspace(*linep) &&
+ *keyp == *linep) {
+ keyp++;
+ linep++;
+ }
+ if (*keyp == '\0' && (linep == limit || isspace(*linep)))
+ return (1);
+ }
+ return (0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-28 07:08:56 +0000