diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/config.c | 141 | ||||
| -rw-r--r-- | src/ini.c | 4 | ||||
| -rw-r--r-- | src/main.c | 39 |
3 files changed, 179 insertions, 5 deletions
diff --git a/src/config.c b/src/config.c new file mode 100644 index 0000000..847af6e --- /dev/null +++ b/src/config.c @@ -0,0 +1,141 @@ +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "config.h" +#include "ini.h" + +struct gmnisrv_host * +gmnisrv_config_get_host(struct gmnisrv_config *conf, const char *hostname) +{ + struct gmnisrv_host *host = conf->hosts; + while (host) { + if (strcmp(host->hostname, hostname) == 0) { + return host; + } + host = host->next; + } + return NULL; +} + +static int +parse_listen(struct gmnisrv_config *conf, const char *value) +{ + // TODO + (void)conf; + (void)value; + return 1; +} + +static int +conf_ini_handler(void *user, const char *section, + const char *name, const char *value) +{ + struct gmnisrv_config *conf = (struct gmnisrv_config *)user; + struct { + char *section; + char *name; + char **value; + } strvars[] = { + { ":tls", "store", &conf->tls.store }, + { ":tls", "organization", &conf->tls.organization }, + { ":tls", "email", &conf->tls.email }, + }; + struct { + char *section; + char *name; + int (*fn)(struct gmnisrv_config *conf, const char *value); + } fnvars[] = { + { "", "listen", &parse_listen, } + }; + + for (size_t i = 0; i < sizeof(strvars) / sizeof(strvars[0]); ++i) { + if (strcmp(strvars[i].section, section) != 0) { + continue; + } + if (strcmp(strvars[i].name, name) != 0) { + continue; + } + *strvars[i].value = strdup(value); + return 1; + } + + for (size_t i = 0; i < sizeof(fnvars) / sizeof(fnvars[0]); ++i) { + if (strcmp(fnvars[i].section, section) != 0) { + continue; + } + if (strcmp(fnvars[i].name, name) != 0) { + continue; + } + return fnvars[i].fn(conf, value); + } + + if (section[0] == '\0' || section[0] == ':') { + fprintf(stderr, "Unknown config option [%s]%s\n", section, name); + return 0; + } + + struct gmnisrv_host *host = gmnisrv_config_get_host(conf, section); + if (!host) { + host = calloc(1, sizeof(struct gmnisrv_host)); + host->hostname = strdup(section); + host->next = conf->hosts; + conf->hosts = host; + } + + struct { + char *name; + char **value; + } host_strvars[] = { + { "root", &host->root }, + }; + + for (size_t i = 0; i < sizeof(host_strvars) / sizeof(host_strvars[0]); ++i) { + if (strcmp(host_strvars[i].name, name) != 0) { + continue; + } + *host_strvars[i].value = strdup(value); + return 1; + } + + fprintf(stderr, "Unknown config option [%s]%s\n", section, name); + return 0; +} + +static int +validate_config(struct gmnisrv_config *conf) +{ + if (!conf->binds) { + fprintf(stderr, "Error: config missing listen directive\n"); + return 1; + } + if (!conf->hosts) { + fprintf(stderr, "Error: config defines no hosts\n"); + return 1; + } + if (!conf->tls.store) { + fprintf(stderr, "Error: config defines no certificate store\n"); + return 1; + } + return 0; +} + +int +load_config(struct gmnisrv_config *conf, const char *path) +{ + FILE *f = fopen(path, "r"); + if (!f) { + fprintf(stderr, "Error opening %s: %s\n", + path, strerror(errno)); + return 1; + } + + int n = ini_parse_file(f, conf_ini_handler, conf); + fclose(f); + if (n != 0) { + fprintf(stderr, "at %s:%d\n", path, n); + return 1; + } + + return validate_config(conf); +} @@ -20,8 +20,8 @@ https://github.com/benhoyt/inih #include <stdlib.h> #endif -#define MAX_SECTION 50 -#define MAX_NAME 50 +#define MAX_SECTION 512 +#define MAX_NAME 512 /* Strip whitespace chars off end of given string, in place. Return s. */ static char* rstrip(char* s) @@ -1,10 +1,43 @@ +#include <getopt.h> #include <stdio.h> +#include "config.h" + +static void +usage(const char *argv_0) +{ + fprintf(stderr, "Usage: %s [-C path]\n", argv_0); +} int main(int argc, char **argv) { - printf("Hello world!\n"); - (void)argc; - (void)argv; + struct gmnisrv_config conf = {0}; + + char *confpath = SYSCONFDIR "/gmnisrv.ini"; + int c; + while ((c = getopt(argc, argv, "C:h")) != -1) { + switch (c) { + case 'C': + confpath = optarg; + break; + case 'h': + usage(argv[0]); + return 0; + default: + fprintf(stderr, "Unknown flag %c\n", c); + usage(argv[0]); + return 1; + } + } + if (optind < argc) { + usage(argv[0]); + return 1; + } + + int r = load_config(&conf, confpath); + if (r != 0) { + return r; + } + return 0; } |