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[Qemu-devel] [PATCH 3/4] QemuOpts: parse config from file.
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 3/4] QemuOpts: parse config from file. |
Date: |
Wed, 14 Oct 2009 10:39:27 +0200 |
Add functions to parse QemuOpts from a git-style config file.
Signed-off-by: Gerd Hoffmann <address@hidden>
---
qemu-config.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
qemu-config.h | 1 +
2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/qemu-config.c b/qemu-config.c
index fa236e9..1b24ec8 100644
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -277,3 +277,53 @@ 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;
+}
diff --git a/qemu-config.h b/qemu-config.h
index 33fce7e..0448ab4 100644
--- a/qemu-config.h
+++ b/qemu-config.h
@@ -10,5 +10,6 @@ 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 */
--
1.6.2.5
- [Qemu-devel] [PATCH 0/4] QemuOpts: config file support., Gerd Hoffmann, 2009/10/14
- [Qemu-devel] [PATCH 1/4] QemuOpts: add find_list(), Gerd Hoffmann, 2009/10/14
- [Qemu-devel] [PATCH 4/4] QemuOpts: command line switches for the config file., Gerd Hoffmann, 2009/10/14
- [Qemu-devel] [PATCH 3/4] QemuOpts: parse config from file.,
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 2/4] QemuOpts: dump config., Gerd Hoffmann, 2009/10/14
- Re: [Qemu-devel] [PATCH 0/4] QemuOpts: config file support., Anthony Liguori, 2009/10/14
- Re: [Qemu-devel] [PATCH 0/4] QemuOpts: config file support., Anthony Liguori, 2009/10/14