diff options
| -rw-r--r-- | tests/test-qemu-opts.c | 18 | ||||
| -rw-r--r-- | util/qemu-option.c | 44 |
2 files changed, 22 insertions, 40 deletions
diff --git a/tests/test-qemu-opts.c b/tests/test-qemu-opts.c index 77dd72b403..7092e216f7 100644 --- a/tests/test-qemu-opts.c +++ b/tests/test-qemu-opts.c @@ -459,8 +459,6 @@ static void test_opts_parse(void) { Error *err = NULL; QemuOpts *opts; - char long_key[129]; - char *params; /* Nothing */ opts = qemu_opts_parse(&opts_list_03, "", false, &error_abort); @@ -471,22 +469,6 @@ static void test_opts_parse(void) g_assert_cmpuint(opts_count(opts), ==, 1); g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "val"); - /* Long key */ - memset(long_key, 'a', 127); - long_key[127] = 'z'; - long_key[128] = 0; - params = g_strdup_printf("%s=v", long_key); - opts = qemu_opts_parse(&opts_list_03, params + 1, NULL, &error_abort); - g_assert_cmpuint(opts_count(opts), ==, 1); - g_assert_cmpstr(qemu_opt_get(opts, long_key + 1), ==, "v"); - - /* Overlong key gets truncated */ - opts = qemu_opts_parse(&opts_list_03, params, NULL, &error_abort); - g_assert(opts_count(opts) == 1); - long_key[127] = 0; - g_assert_cmpstr(qemu_opt_get(opts, long_key), ==, "v"); - g_free(params); - /* Multiple keys, last one wins */ opts = qemu_opts_parse(&opts_list_03, "a=1,b=2,,x,a=3", false, &error_abort); diff --git a/util/qemu-option.c b/util/qemu-option.c index baca40fb94..fa1a9f17fc 100644 --- a/util/qemu-option.c +++ b/util/qemu-option.c @@ -43,27 +43,23 @@ * first byte of the option name) * * The option name is delimited by delim (usually , or =) or the string end - * and is copied into buf. If the option name is longer than buf_size, it is - * truncated. buf is always zero terminated. + * and is copied into option. The caller is responsible for free'ing option + * when no longer required. * * The return value is the position of the delimiter/zero byte after the option * name in p. */ -static const char *get_opt_name(char *buf, int buf_size, const char *p, - char delim) +static const char *get_opt_name(const char *p, char **option, char delim) { - char *q; + char *offset = strchr(p, delim); - q = buf; - while (*p != '\0' && *p != delim) { - if (q && (q - buf) < buf_size - 1) - *q++ = *p; - p++; + if (offset) { + *option = g_strndup(p, offset - p); + return offset; + } else { + *option = g_strdup(p); + return p + strlen(p); } - if (q) - *q = '\0'; - - return p; } /* @@ -758,7 +754,8 @@ void qemu_opts_print(QemuOpts *opts, const char *separator) static void opts_do_parse(QemuOpts *opts, const char *params, const char *firstname, bool prepend, Error **errp) { - char option[128], value[1024]; + char *option = NULL; + char value[1024]; const char *p,*pe,*pc; Error *local_err = NULL; @@ -769,11 +766,11 @@ static void opts_do_parse(QemuOpts *opts, const char *params, /* found "foo,more" */ if (p == params && firstname) { /* implicitly named first option */ - pstrcpy(option, sizeof(option), firstname); + option = g_strdup(firstname); p = get_opt_value(value, sizeof(value), p); } else { /* option without value, probably a flag */ - p = get_opt_name(option, sizeof(option), p, ','); + p = get_opt_name(p, &option, ','); if (strncmp(option, "no", 2) == 0) { memmove(option, option+2, strlen(option+2)+1); pstrcpy(value, sizeof(value), "off"); @@ -783,10 +780,8 @@ static void opts_do_parse(QemuOpts *opts, const char *params, } } else { /* found "foo=bar,more" */ - p = get_opt_name(option, sizeof(option), p, '='); - if (*p != '=') { - break; - } + p = get_opt_name(p, &option, '='); + assert(*p == '='); p++; p = get_opt_value(value, sizeof(value), p); } @@ -795,13 +790,18 @@ static void opts_do_parse(QemuOpts *opts, const char *params, opt_set(opts, option, value, prepend, &local_err); if (local_err) { error_propagate(errp, local_err); - return; + goto cleanup; } } if (*p != ',') { break; } + g_free(option); + option = NULL; } + + cleanup: + g_free(option); } /** |