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QemuOpts: parse config from file.

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Add functions to parse QemuOpts from a git-style config file.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-10-14 10:39:27 +02:00 committed by Anthony Liguori
parent 9d993394a1
commit 42262ba860
2 changed files with 51 additions and 0 deletions
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50
qemu-config.c
View File

@ -296,3 +296,53 @@ void qemu_config_write(FILE *fp)
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
}
}
int qemu_config_parse(FILE *fp)
{
char line[1024], group[64], id[64], arg[64], value[1024];
QemuOptsList *list = NULL;
QemuOpts *opts = NULL;
while (fgets(line, sizeof(line), fp) != NULL) {
if (line[0] == '\n') {
/* skip empty lines */
continue;
}
if (line[0] == '#') {
/* comment */
continue;
}
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
/* group with id */
list = find_list(group);
if (list == NULL)
return -1;
opts = qemu_opts_create(list, id, 1);
continue;
}
if (sscanf(line, "[%63[^]]]", group) == 1) {
/* group without id */
list = find_list(group);
if (list == NULL)
return -1;
opts = qemu_opts_create(list, NULL, 0);
continue;
}
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
/* arg = value */
if (opts == NULL) {
fprintf(stderr, "no group defined\n");
return -1;
}
if (qemu_opt_set(opts, arg, value) != 0) {
fprintf(stderr, "failed to set \"%s\" for %s\n",
arg, group);
return -1;
}
continue;
}
fprintf(stderr, "parse error: %s\n", line);
return -1;
}
return 0;
}

1
qemu-config.h
View File

@ -11,5 +11,6 @@ extern QemuOptsList qemu_rtc_opts;
int qemu_set_option(const char *str);
void qemu_config_write(FILE *fp);
int qemu_config_parse(FILE *fp);
#endif /* QEMU_CONFIG_H */