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Search for system-wide volk_gnsssdr_config file

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This commit is contained in:
Carles Fernandez 2019-05-29 15:56:12 +02:00
parent 80f6cf417b
commit fb350e788b
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GPG Key ID: 4C583C52B0C3877D
1 changed files with 42 additions and 9 deletions
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51
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/lib/volk_gnsssdr_prefs.c
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@ -19,6 +19,13 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#if defined(_MSC_VER)
#include <io.h>
#define access _access
#define F_OK 0
#else
#include <unistd.h>
#endif
#include <volk_gnsssdr/volk_gnsssdr_prefs.h> #include <volk_gnsssdr/volk_gnsssdr_prefs.h>
@ -29,7 +36,7 @@ void volk_gnsssdr_get_config_path(char *path)
const char *suffix2 = "/volk_gnsssdr/volk_gnsssdr_config"; // non-hidden const char *suffix2 = "/volk_gnsssdr/volk_gnsssdr_config"; // non-hidden
char *home = NULL; char *home = NULL;
//allows config redirection via env variable // allows config redirection via env variable
home = getenv("VOLK_CONFIGPATH"); home = getenv("VOLK_CONFIGPATH");
if (home != NULL) if (home != NULL)
{ {
@ -38,17 +45,43 @@ void volk_gnsssdr_get_config_path(char *path)
return; return;
} }
if (home == NULL) home = getenv("HOME"); // check for user-local config file
if (home == NULL) home = getenv("APPDATA"); home = getenv("HOME");
if (home == NULL) if (home != NULL)
{ {
path[0] = 0; strncpy(path, home, 512);
strcat(path, suffix);
if (access(path, F_OK) != -1)
{
return;
}
}
// check for config file in APPDATA (Windows)
home = getenv("APPDATA");
if (home != NULL)
{
strncpy(path, home, 512);
strcat(path, suffix);
if (access(path, F_OK) != -1)
{
return;
}
}
// check for system-wide config file
if (access("/etc/volk_gnsssdr/volk_gnsssdr_config", F_OK) != -1)
{
strncpy(path, "/etc", 512);
strcat(path, suffix2);
return; return;
} }
strncpy(path, home, 512);
strcat(path, suffix); path[0] = 0;
return;
} }
size_t volk_gnsssdr_load_preferences(volk_gnsssdr_arch_pref_t **prefs_res) size_t volk_gnsssdr_load_preferences(volk_gnsssdr_arch_pref_t **prefs_res)
{ {
FILE *config_file; FILE *config_file;
@ -56,13 +89,13 @@ size_t volk_gnsssdr_load_preferences(volk_gnsssdr_arch_pref_t **prefs_res)
size_t n_arch_prefs = 0; size_t n_arch_prefs = 0;
volk_gnsssdr_arch_pref_t *prefs = NULL; volk_gnsssdr_arch_pref_t *prefs = NULL;
//get the config path // get the config path
volk_gnsssdr_get_config_path(path); volk_gnsssdr_get_config_path(path);
if (!path[0]) return n_arch_prefs; //no prefs found if (!path[0]) return n_arch_prefs; //no prefs found
config_file = fopen(path, "r"); config_file = fopen(path, "r");
if (!config_file) return n_arch_prefs; //no prefs found if (!config_file) return n_arch_prefs; //no prefs found
//reset the file pointer and write the prefs into volk_gnsssdr_arch_prefs // reset the file pointer and write the prefs into volk_gnsssdr_arch_prefs
while (fgets(line, sizeof(line), config_file) != NULL) while (fgets(line, sizeof(line), config_file) != NULL)
{ {
prefs = (volk_gnsssdr_arch_pref_t *)realloc(prefs, (n_arch_prefs + 1) * sizeof(*prefs)); prefs = (volk_gnsssdr_arch_pref_t *)realloc(prefs, (n_arch_prefs + 1) * sizeof(*prefs));