diff options
| -rw-r--r-- | src/pulse/proplist.c | 384 | ||||
| -rw-r--r-- | src/pulse/proplist.h | 2 |
2 files changed, 310 insertions, 76 deletions
diff --git a/src/pulse/proplist.c b/src/pulse/proplist.c index 282fe5cc..db4c9344 100644 --- a/src/pulse/proplist.c +++ b/src/pulse/proplist.c @@ -24,6 +24,7 @@ #endif #include <string.h> +#include <ctype.h> #include <pulse/xmalloc.h> #include <pulse/utf8.h> @@ -46,7 +47,7 @@ struct property { static pa_bool_t property_name_valid(const char *key) { - if (!pa_utf8_valid(key)) + if (!pa_ascii_valid(key)) return FALSE; if (strlen(key) <= 0) @@ -64,8 +65,6 @@ static void property_free(struct property *prop) { } pa_proplist* pa_proplist_new(void) { - pa_init_i18n(); - return MAKE_PROPLIST(pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func)); } @@ -83,6 +82,7 @@ int pa_proplist_sets(pa_proplist *p, const char *key, const char *value) { pa_assert(p); pa_assert(key); + pa_assert(value); if (!property_name_valid(key) || !pa_utf8_valid(value)) return -1; @@ -104,25 +104,130 @@ int pa_proplist_sets(pa_proplist *p, const char *key, const char *value) { } /** Will accept only valid UTF-8 */ +static int proplist_setn(pa_proplist *p, const char *key, size_t key_length, const char *value, size_t value_length) { + struct property *prop; + pa_bool_t add = FALSE; + char *k, *v; + + pa_assert(p); + pa_assert(key); + pa_assert(value); + + k = pa_xstrndup(key, key_length); + v = pa_xstrndup(value, value_length); + + if (!property_name_valid(k) || !pa_utf8_valid(v)) { + pa_xfree(k); + pa_xfree(v); + return -1; + } + + if (!(prop = pa_hashmap_get(MAKE_HASHMAP(p), k))) { + prop = pa_xnew(struct property, 1); + prop->key = k; + add = TRUE; + } else { + pa_xfree(prop->value); + pa_xfree(k); + } + + prop->value = v; + prop->nbytes = strlen(v)+1; + + if (add) + pa_hashmap_put(MAKE_HASHMAP(p), prop->key, prop); + + return 0; +} + +static int proplist_sethex(pa_proplist *p, const char *key, size_t key_length, const char *value, size_t value_length) { + struct property *prop; + pa_bool_t add = FALSE; + char *k, *v; + uint8_t *d; + size_t dn; + + pa_assert(p); + pa_assert(key); + pa_assert(value); + + k = pa_xstrndup(key, key_length); + + if (!property_name_valid(k)) { + pa_xfree(k); + return -1; + } + + v = pa_xstrndup(value, value_length); + d = pa_xmalloc(value_length*2+1); + + if ((dn = pa_parsehex(v, d, value_length*2)) == (size_t) -1) { + pa_xfree(k); + pa_xfree(v); + pa_xfree(d); + return -1; + } + + pa_xfree(v); + + if (!(prop = pa_hashmap_get(MAKE_HASHMAP(p), k))) { + prop = pa_xnew(struct property, 1); + prop->key = k; + add = TRUE; + } else { + pa_xfree(prop->value); + pa_xfree(k); + } + + d[dn] = 0; + prop->value = d; + prop->nbytes = dn; + + if (add) + pa_hashmap_put(MAKE_HASHMAP(p), prop->key, prop); + + return 0; +} + +/** Will accept only valid UTF-8 */ int pa_proplist_setf(pa_proplist *p, const char *key, const char *format, ...) { + struct property *prop; + pa_bool_t add = FALSE; va_list ap; - int r; - char *t; + char *v; pa_assert(p); pa_assert(key); + pa_assert(format); if (!property_name_valid(key) || !pa_utf8_valid(format)) return -1; va_start(ap, format); - t = pa_vsprintf_malloc(format, ap); + v = pa_vsprintf_malloc(format, ap); va_end(ap); - r = pa_proplist_sets(p, key, t); + if (!pa_utf8_valid(v)) + goto fail; - pa_xfree(t); - return r; + if (!(prop = pa_hashmap_get(MAKE_HASHMAP(p), key))) { + prop = pa_xnew(struct property, 1); + prop->key = pa_xstrdup(key); + add = TRUE; + } else + pa_xfree(prop->value); + + prop->value = v; + prop->nbytes = strlen(v)+1; + + if (add) + pa_hashmap_put(MAKE_HASHMAP(p), prop->key, prop); + + return 0; + +fail: + pa_xfree(v); + return -1; } int pa_proplist_set(pa_proplist *p, const char *key, const void *data, size_t nbytes) { @@ -131,6 +236,7 @@ int pa_proplist_set(pa_proplist *p, const char *key, const void *data, size_t nb pa_assert(p); pa_assert(key); + pa_assert(data); if (!property_name_valid(key)) return -1; @@ -142,7 +248,9 @@ int pa_proplist_set(pa_proplist *p, const char *key, const void *data, size_t nb } else pa_xfree(prop->value); - prop->value = pa_xmemdup(data, nbytes); + prop->value = pa_xmalloc(nbytes+1); + memcpy(prop->value, data, nbytes); + ((char*) prop->value)[nbytes] = 0; prop->nbytes = nbytes; if (add) @@ -183,6 +291,8 @@ int pa_proplist_get(pa_proplist *p, const char *key, const void **data, size_t * pa_assert(p); pa_assert(key); + pa_assert(data); + pa_assert(nbytes); if (!property_name_valid(key)) return -1; @@ -275,9 +385,32 @@ char *pa_proplist_to_string_sep(pa_proplist *p, const char *sep) { if (!pa_strbuf_isempty(buf)) pa_strbuf_puts(buf, sep); - if ((v = pa_proplist_gets(p, key))) - pa_strbuf_printf(buf, "%s = \"%s\"", key, v); - else { + if ((v = pa_proplist_gets(p, key))) { + const char *t; + + pa_strbuf_printf(buf, "%s = \"", key); + + for (t = v;;) { + size_t h; + + h = strcspn(t, "\""); + + if (h > 0) + pa_strbuf_putsn(buf, t, h); + + t += h; + + if (*t == 0) + break; + + pa_assert(*t == '"'); + pa_strbuf_puts(buf, "\\\""); + + t++; + } + + pa_strbuf_puts(buf, "\""); + } else { const void *value; size_t nbytes; char *c; @@ -304,88 +437,189 @@ char *pa_proplist_to_string(pa_proplist *p) { return t; } -/* Remove all whitepsapce from the beginning and the end of *s. *s may - * be modified. (from conf-parser.c) */ -#define WHITESPACE " \t\n" -#define in_string(c,s) (strchr(s,c) != NULL) - -static char *strip(char *s) { - char *b = s+strspn(s, WHITESPACE); - char *e, *l = NULL; - - for (e = b; *e; e++) - if (!in_string(*e, WHITESPACE)) - l = e; +pa_proplist *pa_proplist_from_string(const char *s) { + enum { + WHITESPACE, + KEY, + AFTER_KEY, + VALUE_START, + VALUE_SIMPLE, + VALUE_DOUBLE_QUOTES, + VALUE_DOUBLE_QUOTES_ESCAPE, + VALUE_TICKS, + VALUE_TICKS_ESCAPED, + VALUE_HEX + } state; + + pa_proplist *pl; + const char *p, *key = NULL, *value = NULL; + size_t key_len = 0, value_len = 0; + + pa_assert(s); + + pl = pa_proplist_new(); + + state = WHITESPACE; + + for (p = s;; p++) { + switch (state) { + + case WHITESPACE: + if (*p == 0) + goto success; + else if (*p == '=') + goto fail; + else if (!isspace(*p)) { + key = p; + state = KEY; + key_len = 1; + } + break; - if (l) - *(l+1) = 0; + case KEY: + if (*p == 0) + goto fail; + else if (*p == '=') + state = VALUE_START; + else if (isspace(*p)) + state = AFTER_KEY; + else + key_len++; + break; - return b; -} + case AFTER_KEY: + if (*p == 0) + goto fail; + else if (*p == '=') + state = VALUE_START; + else if (!isspace(*p)) + goto fail; + break; -pa_proplist *pa_proplist_from_string(const char *str) { - pa_proplist *p; - char *s, *v, *k, *e; + case VALUE_START: + if (*p == 0) + goto fail; + else if (strncmp(p, "hex:", 4) == 0) { + state = VALUE_HEX; + value = p+4; + value_len = 0; + p += 3; + } else if (*p == '\'') { + state = VALUE_TICKS; + value = p+1; + value_len = 0; + } else if (*p == '"') { + state = VALUE_DOUBLE_QUOTES; + value = p+1; + value_len = 0; + } else if (!isspace(*p)) { + state = VALUE_SIMPLE; + value = p; + value_len = 1; + } + break; - pa_assert(str); - pa_assert_se(p = pa_proplist_new()); - pa_assert_se(s = strdup(str)); + case VALUE_SIMPLE: + if (*p == 0 || isspace(*p)) { + if (proplist_setn(pl, key, key_len, value, value_len) < 0) + goto fail; - for (k = s; *k; k = e) { - k = k+strspn(k, WHITESPACE); + if (*p == 0) + goto success; - if (!*k) - break; + state = WHITESPACE; + } else + value_len++; + break; - if (!(v = strchr(k, '='))) { - pa_log("Missing '='."); - break; - } + case VALUE_DOUBLE_QUOTES: + if (*p == 0) + goto fail; + else if (*p == '"') { + char *v; + + v = pa_unescape(pa_xstrndup(value, value_len)); + + if (proplist_setn(pl, key, key_len, v, strlen(v)) < 0) { + pa_xfree(v); + goto fail; + } + + pa_xfree(v); + state = WHITESPACE; + } else if (*p == '\\') { + state = VALUE_DOUBLE_QUOTES_ESCAPE; + value_len++; + } else + value_len++; + break; - *v++ = '\0'; - k = strip(k); + case VALUE_DOUBLE_QUOTES_ESCAPE: + if (*p == 0) + goto fail; + else { + state = VALUE_DOUBLE_QUOTES; + value_len++; + } + break; - v = v+strspn(v, WHITESPACE); - if (*v == '"') { - v++; - if (!(e = strchr(v, '"'))) { /* FIXME: handle escape */ - pa_log("Missing '\"' at end of string value."); + case VALUE_TICKS: + if (*p == 0) + goto fail; + else if (*p == '\'') { + char *v; + + v = pa_unescape(pa_xstrndup(value, value_len)); + + if (proplist_setn(pl, key, key_len, v, strlen(v)) < 0) { + pa_xfree(v); + goto fail; + } + + pa_xfree(v); + state = WHITESPACE; + } else if (*p == '\\') { + state = VALUE_TICKS_ESCAPED; + value_len++; + } else + value_len++; break; - } - *e++ = '\0'; - pa_proplist_sets(p, k, v); - } else { - uint8_t *blob; - if (*v++ != 'h' || *v++ != 'e' || *v++ != 'x' || *v++ != ':') { - pa_log("Value must be a string or \"hex:\""); + case VALUE_TICKS_ESCAPED: + if (*p == 0) + goto fail; + else { + state = VALUE_TICKS; + value_len++; + } break; - } - e = v; - while (in_string(*e, "0123456789abcdefABCDEF")) - ++e; + case VALUE_HEX: + if ((*p >= '0' && *p <= '9') || + (*p >= 'A' && *p <= 'F') || + (*p >= 'a' && *p <= 'f')) { + value_len++; + } else if (*p == 0 || isspace(*p)) { - if ((e - v) % 2) { - pa_log("Invalid \"hex:\" value data"); - break; - } + if (proplist_sethex(pl, key, key_len, value, value_len) < 0) + goto fail; - blob = pa_xmalloc((size_t)(e-v)/2); - if (pa_parsehex(v, blob, (e-v)/2) != (size_t)((e-v)/2)) { - pa_log("Invalid \"hex:\" value data"); - pa_xfree(blob); - break; - } + if (*p == 0) + goto success; - pa_proplist_set(p, k, blob, (e-v)/2); - pa_xfree(blob); + state = WHITESPACE; + } else + goto fail; + break; } } - pa_xfree(s); +success: + return MAKE_PROPLIST(pl); - return p; +fail: + pa_proplist_free(pl); + return NULL; } int pa_proplist_contains(pa_proplist *p, const char *key) { diff --git a/src/pulse/proplist.h b/src/pulse/proplist.h index 990ffd19..d6114062 100644 --- a/src/pulse/proplist.h +++ b/src/pulse/proplist.h @@ -136,7 +136,7 @@ PA_C_DECL_BEGIN #define PA_PROP_MODULE_USAGE "module.usage" #define PA_PROP_MODULE_VERSION "module.version" -/** A property list object. Basically a dictionary with UTF-8 strings +/** A property list object. Basically a dictionary with ASCII strings * as keys and arbitrary data as values. \since 0.9.11 */ typedef struct pa_proplist pa_proplist; |