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-rw-r--r--validate.c1002
1 files changed, 0 insertions, 1002 deletions
diff --git a/validate.c b/validate.c
deleted file mode 100644
index f94a071..0000000
--- a/validate.c
+++ /dev/null
@@ -1,1002 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-#include <ctype.h>
-
-#include <arpa/inet.h>
-#include <netinet/ether.h>
-#include <sys/stat.h>
-
-#include "libvalidate.h"
-
-enum dt_optype {
- OP_UNKNOWN,
- OP_BOOL,
- OP_NUMBER,
- OP_STRING,
- OP_FUNCTION
-};
-
-struct dt_fun;
-
-struct dt_op {
- enum dt_optype type;
- const char *next;
- int length;
- int nextop;
- union {
- bool boolean;
- double number;
- const char *string;
- struct dt_fun *function;
- } value;
-};
-
-struct dt_state {
- int pos;
- int depth;
- const char *value;
- struct dt_op stack[32];
-};
-
-struct dt_fun {
- const char *name;
- bool (*call)(struct dt_state *s, int nargs);
-};
-
-static bool
-dt_test_number(double number, const char *value)
-{
- char *e;
- double n;
-
- n = strtod(value, &e);
-
- return (e > value && *e == 0 && n == number);
-}
-
-static bool
-dt_test_string(const char *s, const char *end, const char *value)
-{
- bool esc = false;
-
- while (*value)
- {
- if (s > end)
- return false;
-
- if (!esc && *s == '\\')
- {
- s++;
-
- if (s >= end)
- break;
-
- esc = true;
- continue;
- }
-
- if (*s != *value)
- return false;
-
- esc = false;
- value++;
- s++;
- }
-
- return (*s == *value || (s > end && *value == 0));
-}
-
-static bool
-dt_step(struct dt_state *s);
-
-static bool
-dt_call(struct dt_state *s);
-
-static bool
-dt_type_or(struct dt_state *s, int nargs)
-{
- while (nargs--)
- if (dt_step(s))
- return true;
-
- return false;
-}
-
-static bool
-dt_type_and(struct dt_state *s, int nargs)
-{
- while (nargs--)
- if (!dt_step(s))
- return false;
-
- return true;
-}
-
-static bool
-dt_type_not(struct dt_state *s, int nargs)
-{
- if (!nargs)
- return false;
-
- return !dt_step(s);
-}
-
-static bool
-dt_type_neg(struct dt_state *s, int nargs)
-{
- bool rv;
- const char *value = s->value;
-
- if (!nargs)
- return false;
-
- if (*s->value == '!')
- while (isspace(*++s->value));
-
- rv = dt_step(s);
- s->value = value;
-
- return rv;
-}
-
-static bool
-dt_type_list(struct dt_state *s, int nargs)
-{
- bool rv = true;
- int pos = s->pos;
- char *p, *str = strdup(s->value);
- const char *value = s->value;
-
- if (!str || !nargs)
- return false;
-
- for (p = strtok(str, " \t"); p; p = strtok(NULL, " \t"))
- {
- s->value = p;
-
- if (!dt_step(s))
- {
- rv = false;
- break;
- }
-
- s->pos = pos;
- }
-
- s->value = value;
- free(str);
-
- return rv;
-}
-
-static bool
-dt_type_min(struct dt_state *s, int nargs)
-{
- int n;
- char *e;
-
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
- {
- n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 &&
- n >= s->stack[s->pos].value.number);
- }
-
- return false;
-}
-
-static bool
-dt_type_max(struct dt_state *s, int nargs)
-{
- int n;
- char *e;
-
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
- {
- n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 &&
- n <= s->stack[s->pos].value.number);
- }
-
- return false;
-}
-
-static bool
-dt_type_range(struct dt_state *s, int nargs)
-{
- int n;
- char *e;
-
- if (nargs >= 2 &&
- s->stack[s->pos].type == OP_NUMBER &&
- s->stack[s->pos + 1].type == OP_NUMBER)
- {
- n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 &&
- n >= s->stack[s->pos].value.number &&
- n <= s->stack[s->pos + 1].value.number);
- }
-
- return false;
-}
-
-static bool
-dt_type_minlen(struct dt_state *s, int nargs)
-{
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
- return (strlen(s->value) >= s->stack[s->pos].value.number);
-
- return false;
-}
-
-static bool
-dt_type_maxlen(struct dt_state *s, int nargs)
-{
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
- return (strlen(s->value) <= s->stack[s->pos].value.number);
-
- return false;
-}
-
-static bool
-dt_type_rangelen(struct dt_state *s, int nargs)
-{
- if (nargs >= 2 &&
- s->stack[s->pos].type == OP_NUMBER &&
- s->stack[s->pos + 1].type == OP_NUMBER)
- return (strlen(s->value) >= s->stack[s->pos].value.number &&
- strlen(s->value) <= s->stack[s->pos + 1].value.number);
-
- return false;
-}
-
-static bool
-dt_type_int(struct dt_state *s, int nargs)
-{
- char *e;
-
- strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0);
-}
-
-static bool
-dt_type_uint(struct dt_state *s, int nargs)
-{
- int n;
- char *e;
-
- n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 && n >= 0);
-}
-
-static bool
-dt_type_float(struct dt_state *s, int nargs)
-{
- char *e;
-
- strtod(s->value, &e);
-
- return (e > s->value && *e == 0);
-}
-
-static bool
-dt_type_ufloat(struct dt_state *s, int nargs)
-{
- int n;
- char *e;
-
- n = strtod(s->value, &e);
-
- return (e > s->value && *e == 0 && n >= 0.0);
-}
-
-static bool
-dt_type_bool(struct dt_state *s, int nargs)
-{
- int i;
- const char *values[] = {
- "0", "off", "false", "no",
- "1", "on", "true", "yes"
- };
-
- for (i = 0; i < sizeof(values) / sizeof(values[0]); i++)
- if (!strcasecmp(values[i], s->value))
- return true;
-
- return false;
-}
-
-static bool
-dt_type_string(struct dt_state *s, int nargs)
-{
- return true;
-}
-
-static bool
-dt_type_ip4addr(struct dt_state *s, int nargs)
-{
- struct in6_addr a;
- return inet_pton(AF_INET, s->value, &a);
-}
-
-static bool
-dt_type_ip6addr(struct dt_state *s, int nargs)
-{
- struct in6_addr a;
- return inet_pton(AF_INET6, s->value, &a);
-}
-
-static bool
-dt_type_ipaddr(struct dt_state *s, int nargs)
-{
- return (dt_type_ip4addr(s, 0) || dt_type_ip6addr(s, 0));
-}
-
-static bool
-dt_type_netmask4(struct dt_state *s, int nargs)
-{
- int i;
- struct in_addr a;
-
- if (!inet_pton(AF_INET, s->value, &a))
- return false;
-
- if (a.s_addr == 0)
- return true;
-
- a.s_addr = ntohl(a.s_addr);
-
- for (i = 0; (i < 32) && !(a.s_addr & (1 << i)); i++);
-
- return ((uint32_t)(~((1 << i) - 1)) == a.s_addr);
-}
-
-static bool
-dt_type_netmask6(struct dt_state *s, int nargs)
-{
- int i;
- struct in6_addr a;
-
- if (!inet_pton(AF_INET6, s->value, &a))
- return false;
-
- for (i = 0; (i < 16) && (a.s6_addr[i] == 0xFF); i++);
-
- if (i == 16)
- return true;
-
- if ((a.s6_addr[i] != 255) && (a.s6_addr[i] != 254) &&
- (a.s6_addr[i] != 252) && (a.s6_addr[i] != 248) &&
- (a.s6_addr[i] != 240) && (a.s6_addr[i] != 224) &&
- (a.s6_addr[i] != 192) && (a.s6_addr[i] != 128) &&
- (a.s6_addr[i] != 0))
- return false;
-
- for (; (i < 16) && (a.s6_addr[i] == 0); i++);
-
- return (i == 16);
-}
-
-static bool
-dt_type_cidr4(struct dt_state *s, int nargs)
-{
- int n;
- struct in_addr a;
- char *p, buf[sizeof("255.255.255.255/32\0")];
-
- if (strlen(s->value) >= sizeof(buf))
- return false;
-
- strcpy(buf, s->value);
- p = strchr(buf, '/');
-
- if (p)
- {
- *p++ = 0;
-
- n = strtoul(p, &p, 10);
-
- if ((*p != 0) || (n > 32))
- return false;
- }
-
- return inet_pton(AF_INET, buf, &a);
-}
-
-static bool
-dt_type_cidr6(struct dt_state *s, int nargs)
-{
- int n;
- struct in6_addr a;
- char *p, buf[sizeof("FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:255.255.255.255/128\0")];
-
- if (strlen(s->value) >= sizeof(buf))
- return false;
-
- strcpy(buf, s->value);
- p = strchr(buf, '/');
-
- if (p)
- {
- *p++ = 0;
-
- n = strtoul(p, &p, 10);
-
- if ((*p != 0) || (n > 128))
- return false;
- }
-
- return inet_pton(AF_INET6, buf, &a);
-}
-
-static bool
-dt_type_cidr(struct dt_state *s, int nargs)
-{
- return (dt_type_cidr4(s, 0) || dt_type_cidr6(s, 0));
-}
-
-static bool
-dt_type_ipmask4(struct dt_state *s, int nargs)
-{
- bool rv;
- struct in_addr a;
- const char *value;
- char *p, buf[sizeof("255.255.255.255/255.255.255.255\0")];
-
- if (strlen(s->value) >= sizeof(buf))
- return false;
-
- strcpy(buf, s->value);
- p = strchr(buf, '/');
-
- if (p)
- {
- *p++ = 0;
-
- value = s->value;
- s->value = p;
- rv = dt_type_netmask4(s, 0);
- s->value = value;
-
- if (!rv)
- return false;
- }
-
- return inet_pton(AF_INET, buf, &a);
-}
-
-static bool
-dt_type_ipmask6(struct dt_state *s, int nargs)
-{
- bool rv;
- struct in6_addr a;
- const char *value;
- char *p, buf[sizeof("FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:255.255.255.255/"
- "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:255.255.255.255\0")];
-
- if (strlen(s->value) >= sizeof(buf))
- return false;
-
- strcpy(buf, s->value);
- p = strchr(buf, '/');
-
- if (p)
- {
- *p++ = 0;
-
- value = s->value;
- s->value = p;
- rv = dt_type_netmask6(s, 0);
- s->value = value;
-
- if (!rv)
- return false;
- }
-
- return inet_pton(AF_INET6, buf, &a);
-}
-
-static bool
-dt_type_ipmask(struct dt_state *s, int nargs)
-{
- return (dt_type_ipmask4(s, 0) || dt_type_ipmask6(s, 0));
-}
-
-static bool
-dt_type_port(struct dt_state *s, int nargs)
-{
- int n;
- char *e;
-
- n = strtoul(s->value, &e, 10);
-
- return (e > s->value && *e == 0 && n <= 65535);
-}
-
-static bool
-dt_type_portrange(struct dt_state *s, int nargs)
-{
- int n, m;
- char *e;
-
- n = strtoul(s->value, &e, 10);
-
- if (e == s->value || *e != '-')
- return false;
-
- m = strtoul(e + 1, &e, 10);
-
- return (*e == 0 && n <= 65535 && m <= 65535 && n <= m);
-}
-
-static bool
-dt_type_macaddr(struct dt_state *s, int nargs)
-{
- return !!ether_aton(s->value);
-}
-
-static bool
-dt_type_uciname(struct dt_state *s, int nargs)
-{
- const char *p;
-
- for (p = s->value;
- *p && ((*p >= 'A' && *p <= 'Z') || (*p >= 'a' && *p <= 'z') ||
- (*p >= '0' && *p <= '9') || (*p == '_'));
- p++);
-
- return (*p == 0);
-}
-
-static bool
-dt_type_wpakey(struct dt_state *s, int nargs)
-{
- int len = strlen(s->value);
- const char *p = s->value;
-
- if (len == 64)
- {
- while (isxdigit(*p))
- p++;
-
- return (*p == 0);
- }
-
- return (len >= 8 && len <= 63);
-}
-
-static bool
-dt_type_wepkey(struct dt_state *s, int nargs)
-{
- int len = strlen(s->value);
- const char *p = s->value;
-
- if (!strncmp(p, "s:", 2))
- {
- len -= 2;
- p += 2;
- }
-
- if (len == 10 || len == 26)
- {
- while (isxdigit(*p))
- p++;
-
- return (*p == 0);
- }
-
- return (len == 5 || len == 13);
-}
-
-static bool
-dt_type_hostname(struct dt_state *s, int nargs)
-{
- const char *p, *last;
-
- for (p = last = s->value; *p; p++)
- {
- if (*p == '.')
- {
- if ((p - last) == 0 || (p - last) > 63)
- return false;
-
- last = p + 1;
- continue;
- }
- else if ((*p >= 'A' && *p <= 'Z') || (*p >= 'a' && *p <= 'z') ||
- (*p >= '0' && *p <= '9') || (*p == '_') || (*p == '-'))
- {
- continue;
- }
-
- return false;
- }
-
- return ((p - last) > 0 && (p - last) <= 255);
-}
-
-static bool
-dt_type_host(struct dt_state *s, int nargs)
-{
- return (dt_type_hostname(s, 0) || dt_type_ipaddr(s, 0));
-}
-
-static bool
-dt_type_network(struct dt_state *s, int nargs)
-{
- return (dt_type_uciname(s, 0) || dt_type_host(s, 0));
-}
-
-static bool
-dt_type_phonedigit(struct dt_state *s, int nargs)
-{
- const char *p;
-
- for (p = s->value;
- *p && ((*p >= '0' && *p <= '9') || (*p == '*') || (*p == '#') ||
- (*p == '!') || (*p == '.'));
- p++);
-
- return (*p == 0);
-}
-
-static bool
-dt_type_directory(struct dt_state *s, int nargs)
-{
- struct stat st;
- return (!stat(s->value, &st) && S_ISDIR(st.st_mode));
-}
-
-
-static bool
-dt_type_device(struct dt_state *s, int nargs)
-{
- struct stat st;
- return (!stat(s->value, &st) &&
- (S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode)));
-}
-
-static bool
-dt_type_file(struct dt_state *s, int nargs)
-{
- struct stat st;
- return (!stat(s->value, &st) && S_ISREG(st.st_mode));
-}
-
-
-static struct dt_fun dt_types[] = {
- { "or", dt_type_or },
- { "and", dt_type_and },
- { "not", dt_type_not },
- { "neg", dt_type_neg },
- { "list", dt_type_list },
- { "min", dt_type_min },
- { "max", dt_type_max },
- { "range", dt_type_range },
- { "minlength", dt_type_minlen },
- { "maxlength", dt_type_maxlen },
- { "rangelength", dt_type_rangelen },
- { "integer", dt_type_int },
- { "uinteger", dt_type_uint },
- { "float", dt_type_float },
- { "ufloat", dt_type_ufloat },
- { "bool", dt_type_bool },
- { "string", dt_type_string },
- { "ip4addr", dt_type_ip4addr },
- { "ip6addr", dt_type_ip6addr },
- { "ipaddr", dt_type_ipaddr },
- { "cidr4", dt_type_cidr4 },
- { "cidr6", dt_type_cidr6 },
- { "cidr", dt_type_cidr },
- { "netmask4", dt_type_netmask4 },
- { "netmask6", dt_type_netmask6 },
- { "ipmask4", dt_type_ipmask4 },
- { "ipmask6", dt_type_ipmask6 },
- { "ipmask", dt_type_ipmask },
- { "port", dt_type_port },
- { "portrange", dt_type_portrange },
- { "macaddr", dt_type_macaddr },
- { "uciname", dt_type_uciname },
- { "wpakey", dt_type_wpakey },
- { "wepkey", dt_type_wepkey },
- { "hostname", dt_type_hostname },
- { "host", dt_type_host },
- { "network", dt_type_network },
- { "phonedigit", dt_type_phonedigit },
- { "directory", dt_type_directory },
- { "device", dt_type_device },
- { "file", dt_type_file },
-
- { }
-};
-
-static struct dt_fun *
-dt_lookup_function(const char *s, const char *e)
-{
- struct dt_fun *fun = dt_types;
-
- while (fun->name)
- {
- if (!strncmp(fun->name, s, e - s) && *(fun->name + (e - s)) == '\0')
- return fun;
-
- fun++;
- }
-
- return NULL;
-}
-
-static bool
-dt_parse_atom(struct dt_state *s, const char *label, const char *end)
-{
- char q, *e;
- const char *p;
- bool esc;
- double dval;
- struct dt_fun *func;
- struct dt_op *op = &s->stack[s->depth];
-
- if ((s->depth + 1) >= (sizeof(s->stack) / sizeof(s->stack[0])))
- {
- printf("Syntax error, expression too long\n");
- return false;
- }
-
- while (isspace(*label))
- label++;
-
- /* test whether label is a float */
- dval = strtod(label, &e);
-
- if (e > label)
- {
- op->next = e;
- op->type = OP_NUMBER;
- op->value.number = dval;
- op->nextop = ++s->depth;
-
- return true;
- }
- else if ((*label == '"') || (*label == '\''))
- {
- for (p = label + 1, q = *label, esc = false; p <= end; p++)
- {
- if (esc)
- {
- esc = false;
- continue;
- }
- else if (*p == '\\')
- {
- esc = true;
- continue;
- }
- else if (*p == q)
- {
- op->next = p + 1;
- op->type = OP_STRING;
- op->length = (p - label) - 2;
- op->value.string = label + 1;
- op->nextop = ++s->depth;
-
- return true;
- }
- }
-
- printf("Syntax error, unterminated string\n");
- return false;
- }
- else if (*label)
- {
- for (p = label;
- p <= end && ((*p >= 'A' && *p <= 'Z') ||
- (*p >= 'a' && *p <= 'z') ||
- (*p >= '0' && *p <= '9') ||
- (*p == '_'));
- p++);
-
- func = dt_lookup_function(label, p);
-
- if (!func)
- {
- printf("Syntax error, unrecognized function\n");
- return false;
- }
-
- op->next = p;
- op->type = OP_FUNCTION;
- op->value.function = func;
- op->nextop = ++s->depth;
-
- return true;
- }
-
- printf("Syntax error, unexpected EOF\n");
- return false;
-}
-
-static bool
-dt_parse_list(struct dt_state *s, const char *code, const char *end);
-
-static bool
-dt_parse_expr(const char *code, const char *end, struct dt_state *s)
-{
- struct dt_op *tok;
-
- if (!dt_parse_atom(s, code, end))
- return false;
-
- tok = &s->stack[s->depth - 1];
-
- while (isspace(*tok->next))
- tok->next++;
-
- if (tok->type == OP_FUNCTION)
- {
- if (*tok->next == '(')
- {
- end--;
-
- while (isspace(*end) && end > tok->next + 1)
- end--;
-
- return dt_parse_list(s, tok->next + 1, end);
- }
- else if (tok->next == end)
- {
- return dt_parse_list(s, tok->next, tok->next);
- }
-
- printf("Syntax error, expected '(' or EOF after function label\n");
- return false;
- }
- else if (tok->next == end)
- {
- return true;
- }
-
- printf("Syntax error, expected ',' after literal\n");
- return false;
-}
-
-static bool
-dt_parse_list(struct dt_state *s, const char *code, const char *end)
-{
- char c;
- bool esc;
- int nest;
- const char *p, *last;
- struct dt_op *fptr;
-
- if (!code)
- return false;
-
- fptr = &s->stack[s->depth - 1];
-
- for (nest = 0, p = last = code, esc = false, c = *p;
- p <= end;
- p++, c = (p < end) ? *p : '\0')
- {
- if (esc)
- {
- esc = false;
- continue;
- }
-
- switch (c)
- {
- case '\\':
- esc = true;
- break;
-
- case '(':
- nest++;
- break;
-
- case ')':
- nest--;
- break;
-
- case ',':
- case '\0':
- if (nest <= 0)
- {
- if (p > last)
- {
- if (!dt_parse_expr(last, p, s))
- return false;
-
- fptr->length++;
- }
-
- last = p + 1;
- }
-
- break;
- }
- }
-
- fptr->nextop = s->depth;
- return true;
-}
-
-static bool
-dt_step(struct dt_state *s)
-{
- bool rv;
- struct dt_op *op = &s->stack[s->pos];
-
- switch (op->type)
- {
- case OP_BOOL:
- rv = op->value.boolean;
- break;
-
- case OP_NUMBER:
- rv = dt_test_number(op->value.number, s->value);
- break;
-
- case OP_STRING:
- rv = dt_test_string(op->value.string, op->value.string + op->length, s->value);
- break;
-
- case OP_FUNCTION:
- rv = dt_call(s);
- break;
-
- default:
- rv = false;
- break;
- }
-
- s->pos = op->nextop;
- return rv;
-}
-
-static bool
-dt_call(struct dt_state *s)
-{
- bool rv;
- struct dt_op *fptr = &s->stack[s->pos];
- struct dt_fun *func = fptr->value.function;
-
- s->pos++;
-
- rv = func->call(s, fptr->length);
-
- s->pos = fptr->nextop;
-
- return rv;
-}
-
-bool
-dt_parse(const char *code, const char *value)
-{
- struct dt_state s = {
- .depth = 1,
- .stack = {
- {
- .type = OP_FUNCTION,
- .value.function = &dt_types[0],
- .next = code
- }
- }
- };
-
- if (!value || !*value)
- return false;
-
- if (!dt_parse_list(&s, code, code + strlen(code)))
- return false;
-
- s.value = value;
-
- return dt_call(&s);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 18:56:05 +0200