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mount: use switch (compare_string_array(..))

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where appropriate, saves >100 bytes.
This commit is contained in:
Denis Vlasenko 2006-10-26 01:47:34 +00:00
parent 1457915afc
commit 68f2187265
1 changed files with 105 additions and 36 deletions
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141
util-linux/mount.c
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@ -872,99 +872,168 @@ static int nfsmount(struct mntent *mp, int vfsflags, char *filteropts)
for (opt = strtok(filteropts, ","); opt; opt = strtok(NULL, ",")) {
char *opteq = strchr(opt, '=');
if (opteq) {
const char *const options[] = {
/* 0 */ "rsize",
/* 1 */ "wsize",
/* 2 */ "timeo",
/* 3 */ "retrans",
/* 4 */ "acregmin",
/* 5 */ "acregmax",
/* 6 */ "acdirmin",
/* 7 */ "acdirmax",
/* 8 */ "actimeo",
/* 9 */ "retry",
/* 10 */ "port",
/* 11 */ "mountport",
/* 12 */ "mounthost",
/* 13 */ "mountprog",
/* 14 */ "mountvers",
/* 15 */ "nfsprog",
/* 16 */ "nfsvers",
/* 17 */ "vers",
/* 18 */ "proto",
/* 19 */ "namlen",
/* 20 */ "addr",
NULL
};
int val = xatoi_u(opteq + 1);
*opteq = '\0';
if (!strcmp(opt, "rsize"))
switch (compare_string_array(options, opt)) {
case 0: // "rsize"
data.rsize = val;
else if (!strcmp(opt, "wsize"))
break;
case 1: // "wsize"
data.wsize = val;
else if (!strcmp(opt, "timeo"))
break;
case 2: // "timeo"
data.timeo = val;
else if (!strcmp(opt, "retrans"))
break;
case 3: // "retrans"
data.retrans = val;
else if (!strcmp(opt, "acregmin"))
break;
case 4: // "acregmin"
data.acregmin = val;
else if (!strcmp(opt, "acregmax"))
break;
case 5: // "acregmax"
data.acregmax = val;
else if (!strcmp(opt, "acdirmin"))
break;
case 6: // "acdirmin"
data.acdirmin = val;
else if (!strcmp(opt, "acdirmax"))
break;
case 7: // "acdirmax"
data.acdirmax = val;
else if (!strcmp(opt, "actimeo")) {
break;
case 8: // "actimeo"
data.acregmin = val;
data.acregmax = val;
data.acdirmin = val;
data.acdirmax = val;
}
else if (!strcmp(opt, "retry"))
break;
case 9: // "retry"
retry = val;
else if (!strcmp(opt, "port"))
break;
case 10: // "port"
port = val;
else if (!strcmp(opt, "mountport"))
break;
case 11: // "mountport"
mountport = val;
else if (!strcmp(opt, "mounthost"))
break;
case 12: // "mounthost"
mounthost = xstrndup(opteq+1,
strcspn(opteq+1," \t\n\r,"));
else if (!strcmp(opt, "mountprog"))
break;
case 13: // "mountprog"
mountprog = val;
else if (!strcmp(opt, "mountvers"))
break;
case 14: // "mountvers"
mountvers = val;
else if (!strcmp(opt, "nfsprog"))
break;
case 15: // "nfsprog"
nfsprog = val;
else if (!strcmp(opt, "nfsvers") ||
!strcmp(opt, "vers"))
break;
case 16: // "nfsvers"
case 17: // "vers"
nfsvers = val;
else if (!strcmp(opt, "proto")) {
break;
case 18: // "proto"
if (!strncmp(opteq+1, "tcp", 3))
tcp = 1;
else if (!strncmp(opteq+1, "udp", 3))
tcp = 0;
else
bb_error_msg("warning: unrecognized proto= option");
} else if (!strcmp(opt, "namlen")) {
break;
case 19: // "namlen"
if (nfs_mount_version >= 2)
data.namlen = val;
else
bb_error_msg("warning: option namlen is not supported\n");
} else if (!strcmp(opt, "addr"))
/* ignore */;
else {
break;
case 20: // "addr" - ignore
break;
default:
bb_error_msg("unknown nfs mount parameter: %s=%d", opt, val);
goto fail;
}
}
else {
const char *const options[] = {
"bg",
"fg",
"soft",
"hard",
"intr",
"posix",
"cto",
"ac",
"tcp",
"udp",
"lock",
NULL
};
int val = 1;
if (!strncmp(opt, "no", 2)) {
val = 0;
opt += 2;
}
if (!strcmp(opt, "bg"))
switch (compare_string_array(options, opt)) {
case 0: // "bg"
bg = val;
else if (!strcmp(opt, "fg"))
break;
case 1: // "fg"
bg = !val;
else if (!strcmp(opt, "soft"))
break;
case 2: // "soft"
soft = val;
else if (!strcmp(opt, "hard"))
break;
case 3: // "hard"
soft = !val;
else if (!strcmp(opt, "intr"))
break;
case 4: // "intr"
intr = val;
else if (!strcmp(opt, "posix"))
break;
case 5: // "posix"
posix = val;
else if (!strcmp(opt, "cto"))
break;
case 6: // "cto"
nocto = !val;
else if (!strcmp(opt, "ac"))
break;
case 7: // "ac"
noac = !val;
else if (!strcmp(opt, "tcp"))
break;
case 8: // "tcp"
tcp = val;
else if (!strcmp(opt, "udp"))
break;
case 9: // "udp"
tcp = !val;
else if (!strcmp(opt, "lock")) {
break;
case 10: // "lock"
if (nfs_mount_version >= 3)
nolock = !val;
else
bb_error_msg("warning: option nolock is not supported");
} else {
break;
default:
bb_error_msg("unknown nfs mount option: %s%s", val ? "" : "no", opt);
goto fail;
}