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Reduce duplicate code.

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MFC after:	2 weeks
This commit is contained in:
Hajimu UMEMOTO 2010-04-04 07:31:10 +00:00
parent aea86367e8
commit dc6ab8ddb4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=206154
1 changed files with 33 additions and 59 deletions
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92
lib/libc/net/getservent.c
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@ -207,6 +207,32 @@ servent_unpack(char *p, struct servent *serv, char **aliases,
return 0; return 0;
} }
static int
parse_result(struct servent *serv, char *buffer, size_t bufsize,
char *resultbuf, size_t resultbuflen, int *errnop)
{
char **aliases;
int aliases_size;
if (bufsize <= resultbuflen + _ALIGNBYTES + sizeof(char *)) {
*errnop = ERANGE;
return (NS_RETURN);
}
aliases = (char **)_ALIGN(&buffer[resultbuflen + 1]);
aliases_size = (buffer + bufsize - (char *)aliases) / sizeof(char *);
if (aliases_size < 1) {
*errnop = ERANGE;
return (NS_RETURN);
}
memcpy(buffer, resultbuf, resultbuflen);
buffer[resultbuflen] = '\0';
if (servent_unpack(buffer, serv, aliases, aliases_size, errnop) != 0)
return ((*errnop == 0) ? NS_NOTFOUND : NS_RETURN);
return (NS_SUCCESS);
}
/* files backend implementation */ /* files backend implementation */
static void static void
files_endstate(void *p) files_endstate(void *p)
@ -258,8 +284,6 @@ files_servent(void *retval, void *mdata, va_list ap)
size_t bufsize; size_t bufsize;
int *errnop; int *errnop;
char **aliases;
int aliases_size;
size_t linesize; size_t linesize;
char *line; char *line;
char **cp; char **cp;
@ -347,35 +371,12 @@ files_servent(void *retval, void *mdata, va_list ap)
continue; continue;
} }
if (bufsize <= linesize + _ALIGNBYTES + sizeof(char *)) { rv = parse_result(serv, buffer, bufsize, line, linesize,
*errnop = ERANGE;
rv = NS_RETURN;
break;
}
aliases = (char **)_ALIGN(&buffer[linesize + 1]);
aliases_size = (buffer + bufsize -
(char *)aliases) / sizeof(char *);
if (aliases_size < 1) {
*errnop = ERANGE;
rv = NS_RETURN;
break;
}
memcpy(buffer, line, linesize);
buffer[linesize] = '\0';
rv = servent_unpack(buffer, serv, aliases, aliases_size,
errnop); errnop);
if (rv !=0 ) { if (rv == NS_NOTFOUND)
if (*errnop == 0) { continue;
rv = NS_NOTFOUND; if (rv == NS_RETURN)
continue; break;
}
else {
rv = NS_RETURN;
break;
}
}
rv = NS_NOTFOUND; rv = NS_NOTFOUND;
switch (serv_mdata->how) { switch (serv_mdata->how) {
@ -483,9 +484,6 @@ nis_servent(void *retval, void *mdata, va_list ap)
size_t bufsize; size_t bufsize;
int *errnop; int *errnop;
char **aliases;
int aliases_size;
name = NULL; name = NULL;
proto = NULL; proto = NULL;
how = (enum nss_lookup_type)mdata; how = (enum nss_lookup_type)mdata;
@ -591,32 +589,8 @@ nis_servent(void *retval, void *mdata, va_list ap)
break; break;
}; };
if (bufsize <= resultbuflen + _ALIGNBYTES + sizeof(char *)) { rv = parse_result(serv, buffer, bufsize, resultbuf,
*errnop = ERANGE; resultbuflen, errnop);
rv = NS_RETURN;
break;
}
aliases = (char **)_ALIGN(&buffer[resultbuflen + 1]);
aliases_size =
(buffer + bufsize - (char *)aliases) / sizeof(char *);
if (aliases_size < 1) {
*errnop = ERANGE;
rv = NS_RETURN;
break;
}
memcpy(buffer, resultbuf, resultbuflen);
buffer[resultbuflen] = '\0';
if (servent_unpack(buffer, serv, aliases, aliases_size,
errnop) != 0) {
if (*errnop == 0)
rv = NS_NOTFOUND;
else
rv = NS_RETURN;
} else
rv = NS_SUCCESS;
free(resultbuf); free(resultbuf);
} while (!(rv & NS_TERMINATE) && how == nss_lt_all); } while (!(rv & NS_TERMINATE) && how == nss_lt_all);