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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
static int
add_dirn(char ***dirsp, size_t *countp, size_t *sizep, const char *part1, size_t part1_len, const char *part2, size_t part2_len)
{
char *dir, **new;
size_t i;
if (*countp == *sizep) {
if (SIZE_MAX / sizeof(**dirsp) - 8)
goto enomem;
new = realloc(*dirsp, (*sizep + 8) * sizeof(**dirsp));
if (!new)
goto enomem;
*dirsp = new;
*sizep += 8;
}
dir = malloc(part1_len + part2_len + 1);
if (!dir) {
enomem:
errno = ENOMEM;
return -1;
}
memcpy(dir, part1, part1_len);
memcpy(&dir[part1_len], part2, part2_len + 1);
for (i = 0; i < *countp; i++) {
if (!strcmp(dir, (*dirsp)[i])) {
free(dir);
return 0;
}
}
(*dirsp)[(*countp)++] = dir;
return 0;
}
static int
add_dir(char ***dirsp, size_t *countp, size_t *sizep, const char *part1, const char *part2)
{
return add_dirn(dirsp, countp, sizep, part1, strlen(part1), part2, strlen(part2));
}
static int
add_dirs(char ***dirsp, size_t *countp, size_t *sizep, const char *env, const char *part2)
{
size_t part2_len = strlen(part2);
char *p;
for (; (p = strchr(env, ':')); env = &p[1])
if (*p != ':')
if (add_dirn(dirsp, countp, sizep, env, (size_t)(p - env), part2, part2_len))
return -1;
return *env ? add_dirn(dirsp, countp, sizep, env, strlen(env), part2, part2_len) : 0;
}
int
libfonts_get_font_root_dirs(char ***dirsp, size_t *countp, struct libfonts_context *ctx)
{
const char *env;
char **new, *home = NULL;
size_t size = 0;
*dirsp = NULL;
*countp = 0;
env = libfonts_getenv__("LIBFONTS_FONT_DIRS", ctx);
if (env && *env && add_dirs(dirsp, countp, &size, env, "/fonts"))
goto fail;
env = libfonts_getenv__("XDG_DATA_HOME", ctx);
if (env && *env && add_dir(dirsp, countp, &size, env, "/fonts"))
goto fail;
env = libfonts_getenv__("HOME", ctx);
if (env && *env && (add_dir(dirsp, countp, &size, env, "/.local/share/fonts") ||
add_dir(dirsp, countp, &size, env, "/.fonts")))
goto fail;
home = libfonts_gethome__(ctx);
if (home && *home && (add_dir(dirsp, countp, &size, env, "/.local/share/fonts") ||
add_dir(dirsp, countp, &size, env, "/.fonts")))
goto fail;
free(home);
home = NULL;
env = libfonts_getenv__("XDG_DATA_DIRS", ctx);
if (env && *env && add_dirs(dirsp, countp, &size, env, "/fonts"))
goto fail;
if (add_dirs(dirsp, countp, &size, "/usr/local/share", "/fonts"))
goto fail;
if (add_dirs(dirsp, countp, &size, "/usr/share", "/fonts"))
goto fail;
if (*countp == size) {
if (SIZE_MAX / sizeof(**dirsp) - 1)
goto enomem;
new = realloc(*dirsp, (size + 1) * sizeof(**dirsp));
if (!new)
goto enomem;
*dirsp = new;
}
(*dirsp)[*countp] = NULL;
return 0;
enomem:
errno = ENOMEM;
fail:
if (dirsp)
while (*countp)
free((*dirsp)[--*countp]);
free(*dirsp);
free(home);
*dirsp = NULL;
*countp = 0;
return -1;
}
#else
int
main(void)
{
return 0; /* XXX add test */
}
#endif
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