diff options
Diffstat (limited to 'src/fs.c')
| -rw-r--r-- | src/fs.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/fs.c b/src/fs.c new file mode 100644 index 0000000..6acb05b --- /dev/null +++ b/src/fs.c @@ -0,0 +1,172 @@ +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <mntent.h> + +#include "librcc.h" + +static char *rccCreateFullName(const char *path, const char *filename) { + unsigned int i; + char *name; + + if (!path) { + if (filename) return strdup(filename); + else return strdup("/"); + } else if (!filename) return strdup(path); + + + i = strlen(path); + name = (char*)malloc(i+strlen(filename)+2)*sizeof(char)); + if (!name) return NULL; + + if ((path[i-1]=='/')||(filename[0]=='/')) + sprintf(name, "%s%s", path, filename); + else + sprintf(name, "%s/%s", path, filename); + + return name; +} + +static int rccIsFile(const char *filename) { + struct stat st; + + stat(filename,&st); + if (S_ISREG(st.st_mode)) return 1; + return 0; +} + +static char *rccCheckFile(const char *prefix, const char *name) { + char *temp; + + temp = rccCreateFullName(prefix, name); + if ((!temp)||(rccIsFile(temp))) return temp; + + free(temp); + return NULL; +} + +int rccFS0(const char *fspath, const char *filename, char **prefix, char **name) { + FILE *mtab; + struct mntent *fsentry; + char *tmp; + + if (fspath) { + tmp = strstr(filename, fspath); + if (tmp) tmp = filename + strlen(fspath); + } else { + mtab = setmntent(_PATH_MNTTAB, "r"); + if (mtab) { + while (!feof(mtab)) { + fsentry = getmntent(mtab); + if ((fsentry)&&(fsentry->mnt_dir)) { + tmp = strstr(filename, fsentry->mnt_dir); + if (tmp) tmp = filename + strlen(fsentry->mnt_dir); + } + } + endmntent(mtab); + } + } + + if (!tmp) tmp = filename; + + *name = strdup(tmp); + *prefix = strndup(filename, (tmp-filename)); + + if ((!*name)||(!*prefix)) { + if (*name) free(*name); + if (*prefix) free(*prefix); + return -1; + } + + return 0; +} + +int rccFS1(rcc_context *ctx, const char *fspath, char **prefix, char **name) { + int prefix_size; + char *result, *tmp; + char *path, *filename; + + path = *prefix; + filename = *name; + + + if ((path)&&(filename)) { + result = rccCreateFullName(path, filename); + if (!result) return -1; + } else if (filename) result = filename; + else if (path) result = path; + else return -1; + + + // Checking without recoding in case of autodetection + if (rccGetOption(ctx, RCC_AUTODETECT_FS_NAMES)) { + if (rccIsFile(name)) { + if ((path)&&(filename)) *name = result; + else if (filename) *name = strdup(filename); + else *name = strdup(path); + return 1; + } + } + + err = rccFS0(fspath, result, &prefix, &name); + if ((path)&&(filename)) free(name); + + return err; +} + +char *rccFS2(rcc_context *ctx, iconv_t icnv, const char *prefix, const char *name) { + if (icnv == (iconv_t)-1) return NULL; + if (icnv == (iconv_t)-2) { + strcpy(ctx->tmpbuffer, name); + ctx->tmpbuffer[len] = 0; + } else { + err = rccIConv(ctx, icnv, name, 0); + if (err<=0) return NULL; + } + + return rccCheckFile(prefix, ctx->tmpbuffer); +} + +char *rccFS3(rcc_context *ctx, rcc_language_id language_id, rcc_class_id class_id, const char *prefix, const char *name) { + rcc_charset charset; + rcc_language *language; + iconv_t icnv = ctx->fsiconv; + + if ((rccGetOption(ctx, RCC_AUTODETECT_FS_NAMES))&&(icnv != (iconv_t)-1)) { + result = rccFS2(ctx, icnv, prefix, name); + if (result) return result; + } + + result = rccFS2(ctx, ctx->iconv_to[class_id], prefix, name); + if (result) { + if ((icnv != (iconv_t)-1)||(icnv != (iconv_t)-2)) iconv_close(icnv); + ctx->fsiconv = (iconv_t)-1; + return result; + } + + if (rccGetOption(ctx, RCC_AUTODETECT_FS_NAMES)) { + language = ctx->language[language_id]; + if (language->charset[0]) { + for (i=1;(!result);i++) { + charset = language->charsets[i]; + if (!charset) break; + + if ((icnv != (iconv_t)-1)&&(icnv != (iconv_t)-2)) iconv_close(icnv); + + if (strcmp(charset, "UTF-8")&&strcmp(charset, "UTF8")) icnv = (iconv_t)-2; + else icnv = iconv_open(charset, "UTF-8"); + + result = rccFS2(ctx, icnv, prefix, name); + } + } + } + if (result) ctx->fsiconv = icnv; + else { + if ((icnv != (iconv_t)-1)&&(icnv != (iconv_t)-2)) iconv_close(icnv); + ctx->fsiconv = (iconv_t)-1; + } + + return result; +} |