summaryrefslogtreecommitdiffhomepage
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/driver/tbnf_amain.c97
-rw-r--r--src/driver/tbnf_driver_ctx.c254
-rw-r--r--src/driver/tbnf_map_input.c66
-rw-r--r--src/driver/tbnf_unit_ctx.c139
-rw-r--r--src/internal/treebnf_dprintf_impl.c65
-rw-r--r--src/internal/treebnf_dprintf_impl.h10
-rw-r--r--src/internal/treebnf_driver_impl.h127
-rw-r--r--src/internal/treebnf_errinfo_impl.c43
-rw-r--r--src/internal/treebnf_errinfo_impl.h85
-rw-r--r--src/internal/treebnf_tmpfile_impl.c89
-rw-r--r--src/internal/treebnf_tmpfile_impl.h6
-rw-r--r--src/internal/treebnf_visibility_impl.h26
-rw-r--r--src/output/tbnf_output_error.c192
-rw-r--r--src/skin/tbnf_skin_default.c12
-rw-r--r--src/treebnf.c6
15 files changed, 1214 insertions, 3 deletions
diff --git a/src/driver/tbnf_amain.c b/src/driver/tbnf_amain.c
new file mode 100644
index 0000000..62e66bc
--- /dev/null
+++ b/src/driver/tbnf_amain.c
@@ -0,0 +1,97 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <treebnf/treebnf.h>
+#include "treebnf_driver_impl.h"
+#include "treebnf_dprintf_impl.h"
+
+#ifndef TBNF_DRIVER_FLAGS
+#define TBNF_DRIVER_FLAGS TBNF_DRIVER_VERBOSITY_ERRORS \
+ | TBNF_DRIVER_VERBOSITY_USAGE
+#endif
+
+static const char vermsg[] = "%s%s%s (https://git.foss21.org/tulips/treebnf): "
+ "version %s%d.%d.%d%s.\n"
+ "[commit reference: %s%s%s]\n";
+
+static const char * const tbnf_ver_color[6] = {
+ "\x1b[1m\x1b[35m","\x1b[0m",
+ "\x1b[1m\x1b[32m","\x1b[0m",
+ "\x1b[1m\x1b[34m","\x1b[0m"
+};
+
+static const char * const tbnf_ver_plain[6] = {
+ "","",
+ "","",
+ "",""
+};
+
+static ssize_t tbnf_version(struct tbnf_driver_ctx * dctx, int fdout)
+{
+ const struct tbnf_source_version * verinfo;
+ const char * const * verclr;
+
+ verinfo = tbnf_api_source_version();
+ verclr = isatty(fdout) ? tbnf_ver_color : tbnf_ver_plain;
+
+ return tbnf_dprintf(
+ fdout,vermsg,
+ verclr[0],dctx->program,verclr[1],
+ verclr[2],verinfo->major,verinfo->minor,
+ verinfo->revision,verclr[3],
+ verclr[4],verinfo->commit,verclr[5]);
+}
+
+static void tbnf_perform_unit_actions(
+ const struct tbnf_driver_ctx * dctx,
+ struct tbnf_unit_ctx * uctx)
+{
+ uint64_t flags = dctx->cctx->fmtflags;
+
+ (void)dctx;
+ (void)uctx;
+ (void)flags;
+}
+
+static int tbnf_exit(struct tbnf_driver_ctx * dctx, int ret)
+{
+ tbnf_output_error_vector(dctx);
+ tbnf_lib_free_driver_ctx(dctx);
+ return ret;
+}
+
+int tbnf_main(char ** argv, char ** envp, const struct tbnf_fd_ctx * fdctx)
+{
+ int ret;
+ int fdout;
+ uint64_t flags;
+ struct tbnf_driver_ctx * dctx;
+ struct tbnf_unit_ctx * uctx;
+ const char ** unit;
+
+ flags = TBNF_DRIVER_FLAGS;
+ fdout = fdctx ? fdctx->fdout : STDOUT_FILENO;
+
+ if ((ret = tbnf_lib_get_driver_ctx(argv,envp,flags,fdctx,&dctx)))
+ return (ret == TBNF_USAGE)
+ ? !argv || !argv[0] || !argv[1]
+ : TBNF_ERROR;
+
+ if (dctx->cctx->drvflags & TBNF_DRIVER_VERSION)
+ if ((tbnf_version(dctx,fdout)) < 0)
+ return tbnf_exit(dctx,TBNF_ERROR);
+
+ for (unit=dctx->units; *unit; unit++) {
+ if (!(tbnf_lib_get_unit_ctx(dctx,*unit,&uctx))) {
+ tbnf_perform_unit_actions(dctx,uctx);
+ tbnf_lib_free_unit_ctx(uctx);
+ }
+ }
+
+ return tbnf_exit(dctx,dctx->errv[0] ? TBNF_ERROR : TBNF_OK);
+}
diff --git a/src/driver/tbnf_driver_ctx.c b/src/driver/tbnf_driver_ctx.c
new file mode 100644
index 0000000..8d4b5e5
--- /dev/null
+++ b/src/driver/tbnf_driver_ctx.c
@@ -0,0 +1,254 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define ARGV_DRIVER
+
+#include <treebnf/treebnf.h>
+#include "treebnf_version.h"
+#include "treebnf_driver_impl.h"
+#include "argv/argv.h"
+
+/* package info */
+static const struct tbnf_source_version tbnf_src_version = {
+ TBNF_TAG_VER_MAJOR,
+ TBNF_TAG_VER_MINOR,
+ TBNF_TAG_VER_PATCH,
+ TREEBNF_GIT_VERSION
+};
+
+/* default fd context */
+static const struct tbnf_fd_ctx tbnf_default_fdctx = {
+ .fdin = STDIN_FILENO,
+ .fdout = STDOUT_FILENO,
+ .fderr = STDERR_FILENO,
+ .fdcwd = AT_FDCWD,
+ .fddst = AT_FDCWD,
+ .fdlog = (-1),
+};
+
+struct tbnf_driver_ctx_alloc {
+ struct argv_meta * meta;
+ struct tbnf_driver_ctx_impl ctx;
+ uint64_t guard;
+ const char * units[];
+};
+
+static uint32_t tbnf_argv_flags(uint32_t flags)
+{
+ uint32_t ret = ARGV_CLONE_VECTOR;
+
+ if (flags & TBNF_DRIVER_VERBOSITY_NONE)
+ ret |= ARGV_VERBOSITY_NONE;
+
+ if (flags & TBNF_DRIVER_VERBOSITY_ERRORS)
+ ret |= ARGV_VERBOSITY_ERRORS;
+
+ if (flags & TBNF_DRIVER_VERBOSITY_STATUS)
+ ret |= ARGV_VERBOSITY_STATUS;
+
+ return ret;
+}
+
+static int tbnf_driver_usage(
+ int fdout,
+ const char * program,
+ const char * arg,
+ const struct argv_option ** optv,
+ struct argv_meta * meta)
+{
+ char header[512];
+
+ snprintf(header,sizeof(header),
+ "Usage: %s [options] <file>...\n" "Options:\n",
+ program);
+
+ argv_usage(fdout,header,optv,arg);
+ argv_free(meta);
+
+ return TBNF_USAGE;
+}
+
+static struct tbnf_driver_ctx_impl * tbnf_driver_ctx_alloc(
+ struct argv_meta * meta,
+ const struct tbnf_fd_ctx * fdctx,
+ const struct tbnf_common_ctx * cctx,
+ size_t nunits)
+{
+ struct tbnf_driver_ctx_alloc * ictx;
+ size_t size;
+ struct argv_entry * entry;
+ const char ** units;
+ int elements;
+
+ size = sizeof(struct tbnf_driver_ctx_alloc);
+ size += (nunits+1)*sizeof(const char *);
+
+ if (!(ictx = calloc(1,size)))
+ return 0;
+
+ memcpy(&ictx->ctx.fdctx,fdctx,sizeof(*fdctx));
+ memcpy(&ictx->ctx.cctx,cctx,sizeof(*cctx));
+
+ elements = sizeof(ictx->ctx.erribuf) / sizeof(*ictx->ctx.erribuf);
+
+ ictx->ctx.errinfp = &ictx->ctx.erriptr[0];
+ ictx->ctx.erricap = &ictx->ctx.erriptr[--elements];
+
+ ictx->meta = meta;
+
+ for (entry=meta->entries,units=ictx->units; entry->fopt || entry->arg; entry++)
+ if (!entry->fopt)
+ *units++ = entry->arg;
+
+ ictx->ctx.fdtmpin = (-1);
+ ictx->ctx.ctx.units = ictx->units;
+ ictx->ctx.ctx.errv = ictx->ctx.errinfp;
+ return &ictx->ctx;
+}
+
+static int tbnf_get_driver_ctx_fail(struct argv_meta * meta)
+{
+ argv_free(meta);
+ return -1;
+}
+
+int tbnf_lib_get_driver_ctx(
+ char ** argv,
+ char ** envp,
+ uint64_t flags,
+ const struct tbnf_fd_ctx * fdctx,
+ struct tbnf_driver_ctx ** pctx)
+{
+ struct tbnf_driver_ctx_impl * ctx;
+ struct tbnf_common_ctx cctx;
+ const struct argv_option * optv[TBNF_OPTV_ELEMENTS];
+ struct argv_meta * meta;
+ struct argv_entry * entry;
+ size_t nunits;
+ const char * program;
+
+ (void)envp;
+
+ if (!fdctx)
+ fdctx = &tbnf_default_fdctx;
+
+ argv_optv_init(tbnf_default_options,optv);
+
+ if (!(meta = argv_get(
+ argv,optv,
+ tbnf_argv_flags(flags),
+ fdctx->fderr)))
+ return -1;
+
+ nunits = 0;
+ program = argv_program_name(argv[0]);
+ memset(&cctx,0,sizeof(cctx));
+ cctx.drvflags = flags;
+
+ if (!argv[1] && (flags & TBNF_DRIVER_VERBOSITY_USAGE))
+ return tbnf_driver_usage(
+ fdctx->fderr,
+ program,
+ 0,optv,meta);
+
+ /* get options, count units */
+ for (entry=meta->entries; entry->fopt || entry->arg; entry++) {
+ if (entry->fopt) {
+ switch (entry->tag) {
+ case TAG_HELP:
+ if (flags & TBNF_DRIVER_VERBOSITY_USAGE)
+ return tbnf_driver_usage(
+ fdctx->fdout,
+ program,entry->arg,
+ optv,meta);
+ break;
+
+ case TAG_VERSION:
+ cctx.drvflags |= TBNF_DRIVER_VERSION;
+ break;
+ }
+ } else {
+ nunits++;
+ }
+ }
+
+ if (!(ctx = tbnf_driver_ctx_alloc(meta,fdctx,&cctx,nunits)))
+ return tbnf_get_driver_ctx_fail(meta);
+
+ ctx->ctx.program = program;
+ ctx->ctx.cctx = &ctx->cctx;
+
+ *pctx = &ctx->ctx;
+
+ return TBNF_OK;
+}
+
+static void tbnf_free_driver_ctx_impl(struct tbnf_driver_ctx_alloc * ictx)
+{
+ if (ictx->ctx.fdtmpin)
+ close(ictx->ctx.fdtmpin);
+
+ argv_free(ictx->meta);
+ free(ictx);
+}
+
+void tbnf_lib_free_driver_ctx(struct tbnf_driver_ctx * ctx)
+{
+ struct tbnf_driver_ctx_alloc * ictx;
+ uintptr_t addr;
+
+ if (ctx) {
+ addr = (uintptr_t)ctx - offsetof(struct tbnf_driver_ctx_impl,ctx);
+ addr = addr - offsetof(struct tbnf_driver_ctx_alloc,ctx);
+ ictx = (struct tbnf_driver_ctx_alloc *)addr;
+ tbnf_free_driver_ctx_impl(ictx);
+ }
+}
+
+const struct tbnf_source_version * tbnf_api_source_version(void)
+{
+ return &tbnf_src_version;
+}
+
+int tbnf_lib_get_driver_fdctx(
+ const struct tbnf_driver_ctx * dctx,
+ struct tbnf_fd_ctx * fdctx)
+{
+ struct tbnf_driver_ctx_impl * ictx;
+
+ ictx = tbnf_get_driver_ictx(dctx);
+
+ fdctx->fdin = ictx->fdctx.fdin;
+ fdctx->fdout = ictx->fdctx.fdout;
+ fdctx->fderr = ictx->fdctx.fderr;
+ fdctx->fdlog = ictx->fdctx.fdlog;
+ fdctx->fdcwd = ictx->fdctx.fdcwd;
+ fdctx->fddst = ictx->fdctx.fddst;
+
+ return 0;
+}
+
+int tbnf_lib_set_driver_fdctx(
+ struct tbnf_driver_ctx * dctx,
+ const struct tbnf_fd_ctx * fdctx)
+{
+ struct tbnf_driver_ctx_impl * ictx;
+
+ ictx = tbnf_get_driver_ictx(dctx);
+
+ ictx->fdctx.fdin = fdctx->fdin;
+ ictx->fdctx.fdout = fdctx->fdout;
+ ictx->fdctx.fderr = fdctx->fderr;
+ ictx->fdctx.fdlog = fdctx->fdlog;
+ ictx->fdctx.fdcwd = fdctx->fdcwd;
+ ictx->fdctx.fddst = fdctx->fddst;
+
+ return 0;
+}
diff --git a/src/driver/tbnf_map_input.c b/src/driver/tbnf_map_input.c
new file mode 100644
index 0000000..629672a
--- /dev/null
+++ b/src/driver/tbnf_map_input.c
@@ -0,0 +1,66 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <treebnf/treebnf.h>
+#include "treebnf_driver_impl.h"
+#include "treebnf_errinfo_impl.h"
+
+int tbnf_lib_map_raw_input(
+ const struct tbnf_driver_ctx * dctx,
+ int fd,
+ const char * path,
+ int prot,
+ struct tbnf_raw_input * map)
+{
+ int ret;
+ struct stat st;
+ bool fnew;
+ int fdcwd;
+
+ fdcwd = tbnf_driver_fdcwd(dctx);
+
+ if ((fnew = (fd < 0)))
+ fd = openat(fdcwd,path,O_RDONLY | O_CLOEXEC);
+
+ if (fd < 0)
+ return TBNF_SYSTEM_ERROR(dctx,path);
+
+ if ((ret = fstat(fd,&st) < 0) && fnew)
+ close(fd);
+
+ else if ((st.st_size == 0) && fnew)
+ close(fd);
+
+ if (ret < 0)
+ return TBNF_SYSTEM_ERROR(dctx,path);
+
+ else if (st.st_size == 0)
+ return TBNF_CUSTOM_ERROR(
+ dctx,TBNF_ERR_IMAGE_SIZE_ZERO);
+
+ map->map_size = st.st_size;
+ map->map_addr = mmap(0,map->map_size,prot,MAP_PRIVATE,fd,0);
+
+ if (fnew)
+ close(fd);
+
+ return (map->map_addr == MAP_FAILED)
+ ? TBNF_SYSTEM_ERROR(dctx,0)
+ : 0;
+}
+
+int tbnf_lib_unmap_raw_input(struct tbnf_raw_input * map)
+{
+ return munmap(map->map_addr,map->map_size);
+}
diff --git a/src/driver/tbnf_unit_ctx.c b/src/driver/tbnf_unit_ctx.c
new file mode 100644
index 0000000..fedcbaa
--- /dev/null
+++ b/src/driver/tbnf_unit_ctx.c
@@ -0,0 +1,139 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+
+#include <treebnf/treebnf.h>
+#include "treebnf_driver_impl.h"
+#include "treebnf_errinfo_impl.h"
+#include "treebnf_tmpfile_impl.h"
+
+static int tbnf_free_unit_ctx_impl(struct tbnf_unit_ctx_impl * ctx, int ret)
+{
+ if (ctx) {
+ tbnf_lib_unmap_raw_input(&ctx->map);
+ free(ctx);
+ }
+
+ return ret;
+}
+
+static int tbnf_stdin_to_tmp(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_driver_ctx_impl * ictx;
+ int fdtmp;
+
+ ssize_t ret;
+ ssize_t cnt;
+ char * ch;
+ char buf[4096];
+
+ ictx = tbnf_get_driver_ictx(dctx);
+
+ if (ictx->fdtmpin >= 0)
+ return dup(ictx->fdtmpin);
+
+ if ((fdtmp = tbnf_tmpfile()) < 0)
+ return -1;
+
+ if ((ictx->fdtmpin = dup(fdtmp)) < 0) {
+ close(fdtmp);
+ return -1;
+ }
+
+ for (;;) {
+ ret = read(0,buf,sizeof(buf)-1);
+
+ while ((ret < 0) && (errno == EINTR))
+ ret = read(0,buf,sizeof(buf)-1);
+
+ if (ret < 0) {
+ close(fdtmp);
+ return -1;
+
+ } else if (ret == 0) {
+ return fdtmp;
+
+ } else {
+ ch = buf;
+ cnt = ret;
+
+ for (; cnt; ) {
+ ret = write(fdtmp,ch,cnt);
+
+ while ((ret < 0) && (errno == EINTR))
+ ret = write(fdtmp,ch,cnt);
+
+ if (ret < 0) {
+ close(fdtmp);
+ return -1;
+ }
+
+ ch += ret;
+ cnt -= ret;
+ }
+ }
+ }
+}
+
+int tbnf_lib_get_unit_ctx(
+ const struct tbnf_driver_ctx * dctx,
+ const char * path,
+ struct tbnf_unit_ctx ** pctx)
+{
+ struct tbnf_unit_ctx_impl * ctx;
+ int prot;
+ int fd;
+
+ if (!dctx)
+ return TBNF_CUSTOM_ERROR(
+ dctx,TBNF_ERR_NULL_CONTEXT);
+
+ else if (!(ctx = calloc(1,sizeof(*ctx))))
+ return TBNF_BUFFER_ERROR(dctx);
+
+ tbnf_driver_set_ectx(
+ dctx,0,path);
+
+ prot = PROT_READ;
+
+ if (strcmp(path,"-"))
+ fd = -1;
+
+ else if ((fd = tbnf_stdin_to_tmp(dctx)) < 0)
+ return tbnf_free_unit_ctx_impl(
+ ctx,TBNF_FILE_ERROR(dctx));
+
+ if (tbnf_lib_map_raw_input(dctx,fd,path,prot,&ctx->map))
+ return tbnf_free_unit_ctx_impl(
+ ctx,TBNF_NESTED_ERROR(dctx));
+
+ if (fd >= 0)
+ close(fd);
+
+ ctx->path = path;
+ ctx->uctx.path = &ctx->path;
+ ctx->uctx.map = &ctx->map;
+
+ *pctx = &ctx->uctx;
+ return 0;
+}
+
+void tbnf_lib_free_unit_ctx(struct tbnf_unit_ctx * ctx)
+{
+ struct tbnf_unit_ctx_impl * ictx;
+ uintptr_t addr;
+
+ if (ctx) {
+ addr = (uintptr_t)ctx - offsetof(struct tbnf_unit_ctx_impl,uctx);
+ ictx = (struct tbnf_unit_ctx_impl *)addr;
+ tbnf_free_unit_ctx_impl(ictx,0);
+ }
+}
diff --git a/src/internal/treebnf_dprintf_impl.c b/src/internal/treebnf_dprintf_impl.c
new file mode 100644
index 0000000..8b24a93
--- /dev/null
+++ b/src/internal/treebnf_dprintf_impl.c
@@ -0,0 +1,65 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "treebnf_dprintf_impl.h"
+#include "treebnf_visibility_impl.h"
+
+tbnf_hidden int tbnf_dprintf(int fd, const char * fmt, ...)
+{
+ int ret;
+ int cnt;
+ int size;
+ va_list ap;
+ char * ch;
+ char * buf;
+ char chbuf[2048];
+
+ va_start(ap,fmt);
+
+ size = sizeof(chbuf);
+ buf = ((cnt = vsnprintf(chbuf,size,fmt,ap)) < size)
+ ? chbuf : malloc(cnt + 1);
+
+ va_end(ap);
+
+ if (buf == chbuf) {
+ (void)0;
+
+ } else if (buf) {
+ va_start(ap,fmt);
+ vsprintf(buf,fmt,ap);
+ va_end(ap);
+
+ } else {
+ return -1;
+ }
+
+ ret = 0;
+ ch = buf;
+
+ for (; cnt && ret>=0; ) {
+ ret = write(fd,ch,cnt);
+
+ while ((ret < 0) && (errno == EINTR))
+ ret = write(fd,ch,cnt);
+
+ ch += ret;
+ cnt -= ret;
+ }
+
+ ret = (ret < 0) ? -1 : ch - buf;
+
+ if (buf != chbuf)
+ free(buf);
+
+ return ret;
+}
diff --git a/src/internal/treebnf_dprintf_impl.h b/src/internal/treebnf_dprintf_impl.h
new file mode 100644
index 0000000..d00ac0f
--- /dev/null
+++ b/src/internal/treebnf_dprintf_impl.h
@@ -0,0 +1,10 @@
+#ifndef TREEBNF_DPRINTF_IMPL_H
+#define TREEBNF_DPRINTF_IMPL_H
+
+#ifdef ARGV_DRIVER
+#define argv_dprintf tbnf_dprintf
+#endif
+
+int tbnf_dprintf(int fd, const char * fmt, ...);
+
+#endif
diff --git a/src/internal/treebnf_driver_impl.h b/src/internal/treebnf_driver_impl.h
new file mode 100644
index 0000000..7fcdd43
--- /dev/null
+++ b/src/internal/treebnf_driver_impl.h
@@ -0,0 +1,127 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#ifndef TREEBNF_DRIVER_IMPL_H
+#define TREEBNF_DRIVER_IMPL_H
+
+#include <stdint.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <treebnf/treebnf.h>
+#include "argv/argv.h"
+
+#define TBNF_OPTV_ELEMENTS 128
+
+extern const struct argv_option tbnf_default_options[];
+
+enum app_tags {
+ TAG_HELP,
+ TAG_VERSION,
+};
+
+struct tbnf_driver_ctx_impl {
+ struct tbnf_common_ctx cctx;
+ struct tbnf_driver_ctx ctx;
+ struct tbnf_fd_ctx fdctx;
+ int fdtmpin;
+ const struct tbnf_unit_ctx * euctx;
+ const char * eunit;
+ struct tbnf_error_info ** errinfp;
+ struct tbnf_error_info ** erricap;
+ struct tbnf_error_info * erriptr[64];
+ struct tbnf_error_info erribuf[64];
+};
+
+struct tbnf_unit_ctx_impl {
+ const char * path;
+ struct tbnf_unit_ctx uctx;
+ struct tbnf_raw_input map;
+ struct stat st;
+};
+
+
+static inline struct tbnf_driver_ctx_impl * tbnf_get_driver_ictx(
+ const struct tbnf_driver_ctx * dctx)
+{
+ uintptr_t addr;
+
+ if (dctx) {
+ addr = (uintptr_t)dctx - offsetof(struct tbnf_driver_ctx_impl,ctx);
+ return (struct tbnf_driver_ctx_impl *)addr;
+ }
+
+ return 0;
+}
+
+static inline struct tbnf_unit_ctx_impl * tbnf_get_unit_ictx(
+ const struct tbnf_unit_ctx * uctx)
+{
+ struct tbnf_unit_ctx_impl * ictx;
+ uintptr_t addr;
+
+ addr = (uintptr_t)uctx - offsetof(struct tbnf_unit_ctx_impl,uctx);
+ ictx = (struct tbnf_unit_ctx_impl *)addr;
+ return ictx;
+}
+
+static inline void tbnf_driver_set_ectx(
+ const struct tbnf_driver_ctx * dctx,
+ const struct tbnf_unit_ctx * uctx,
+ const char * unit)
+{
+ struct tbnf_driver_ctx_impl * ictx;
+
+ ictx = tbnf_get_driver_ictx(dctx);
+ ictx->euctx = uctx;
+ ictx->eunit = unit;
+}
+
+static inline int tbnf_driver_fdin(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_fd_ctx fdctx;
+ tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+ return fdctx.fdin;
+}
+
+static inline int tbnf_driver_fdout(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_fd_ctx fdctx;
+ tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+ return fdctx.fdout;
+}
+
+static inline int tbnf_driver_fderr(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_fd_ctx fdctx;
+ tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+ return fdctx.fderr;
+}
+
+static inline int tbnf_driver_fdlog(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_fd_ctx fdctx;
+ tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+ return fdctx.fdlog;
+}
+
+static inline int tbnf_driver_fdcwd(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_fd_ctx fdctx;
+ tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+ return fdctx.fdcwd;
+}
+
+static inline int tbnf_driver_fddst(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_fd_ctx fdctx;
+ tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+ return fdctx.fddst;
+}
+
+#endif
diff --git a/src/internal/treebnf_errinfo_impl.c b/src/internal/treebnf_errinfo_impl.c
new file mode 100644
index 0000000..a639f27
--- /dev/null
+++ b/src/internal/treebnf_errinfo_impl.c
@@ -0,0 +1,43 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <treebnf/treebnf.h>
+#include "treebnf_driver_impl.h"
+#include "treebnf_errinfo_impl.h"
+#include "treebnf_visibility_impl.h"
+
+tbnf_hidden int tbnf_record_error(
+ const struct tbnf_driver_ctx * dctx,
+ int esyscode,
+ int elibcode,
+ const char * efunction,
+ int eline,
+ unsigned eflags,
+ void * eany)
+{
+ struct tbnf_driver_ctx_impl * ictx;
+ struct tbnf_error_info * erri;
+
+ ictx = tbnf_get_driver_ictx(dctx);
+
+ if (ictx->errinfp == ictx->erricap)
+ return -1;
+
+ *ictx->errinfp = &ictx->erribuf[ictx->errinfp - ictx->erriptr];
+ erri = *ictx->errinfp;
+
+ erri->edctx = dctx;
+ erri->esyscode = esyscode;
+ erri->elibcode = elibcode;
+ erri->efunction = efunction;
+ erri->eline = eline;
+ erri->eflags = eflags;
+ erri->eany = (eany && (esyscode == ENOENT)) ? strdup(eany) : eany;
+
+ ictx->errinfp++;
+
+ return -1;
+}
diff --git a/src/internal/treebnf_errinfo_impl.h b/src/internal/treebnf_errinfo_impl.h
new file mode 100644
index 0000000..45a7e14
--- /dev/null
+++ b/src/internal/treebnf_errinfo_impl.h
@@ -0,0 +1,85 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#ifndef TREEBNF_ERRINFO_IMPL_H
+#define TREEBNF_ERRINFO_IMPL_H
+
+#include <errno.h>
+#include <treebnf/treebnf.h>
+
+int tbnf_record_error(
+ const struct tbnf_driver_ctx *,
+ int esyscode,
+ int elibcode,
+ const char * efunction,
+ int eline,
+ unsigned eflags,
+ void * eany);
+
+#define TBNF_SYSTEM_ERROR(dctx,eany) \
+ tbnf_record_error( \
+ dctx, \
+ errno, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ TBNF_ERROR_TOP_LEVEL, \
+ (void *)eany)
+
+#define TBNF_BUFFER_ERROR(dctx) \
+ tbnf_record_error( \
+ dctx, \
+ ENOBUFS, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ TBNF_ERROR_TOP_LEVEL, \
+ 0)
+
+#define TBNF_SPAWN_ERROR(dctx) \
+ tbnf_record_error( \
+ dctx, \
+ errno, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ TBNF_ERROR_TOP_LEVEL \
+ | (errno ? 0 \
+ : TBNF_ERROR_CHILD), \
+ 0)
+
+#define TBNF_FILE_ERROR(dctx) \
+ tbnf_record_error( \
+ dctx, \
+ EIO, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ TBNF_ERROR_TOP_LEVEL, \
+ 0)
+
+#define TBNF_CUSTOM_ERROR(dctx,elibcode) \
+ tbnf_record_error( \
+ dctx, \
+ 0, \
+ elibcode, \
+ __func__, \
+ __LINE__, \
+ TBNF_ERROR_TOP_LEVEL \
+ | TBNF_ERROR_CUSTOM, \
+ 0)
+
+#define TBNF_NESTED_ERROR(dctx) \
+ tbnf_record_error( \
+ dctx, \
+ 0, \
+ 0, \
+ __func__, \
+ __LINE__, \
+ TBNF_ERROR_NESTED, \
+ 0)
+
+#endif
diff --git a/src/internal/treebnf_tmpfile_impl.c b/src/internal/treebnf_tmpfile_impl.c
new file mode 100644
index 0000000..2a5eb45
--- /dev/null
+++ b/src/internal/treebnf_tmpfile_impl.c
@@ -0,0 +1,89 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#define _GNU_SOURCE
+#include <time.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+#include <inttypes.h>
+
+#include "treebnf_visibility_impl.h"
+
+#define PPRIX64 "%"PRIx64
+
+/* mkostemp might be guarded by non-standard macros */
+/* unless HAVE_NO_MKOSTEMP, assume it is available */
+extern int mkstemp(char *);
+extern int mkostemp(char *, int);
+
+/* __fs_tmpfile() atomically provides a private tmpfile */
+static int tbnf_tmpfile_by_framework(void)
+{
+#ifdef _MIDIPIX_ABI
+ extern int __fs_tmpfile(int);
+ return __fs_tmpfile(O_CLOEXEC);
+#else
+ return (-1);
+#endif
+}
+
+/* O_TMPFILE atomically provides a private tmpfile */
+static int tbnf_tmpfile_by_kernel(void)
+{
+#ifdef O_TMPFILE
+ return openat(AT_FDCWD,"/tmp",O_RDWR|O_TMPFILE|O_CLOEXEC,0);
+#else
+ return (-1);
+#endif
+}
+
+/* mk{o}stemp() provides a non-private tmpfile */
+static int tbnf_mkostemp(char * tmplate)
+{
+ int fd;
+#ifdef HAVE_NO_MKOSTEMP
+ if ((fd = mkstemp(tmplate)) >= 0)
+ fcntl(fd,F_SETFD,FD_CLOEXEC);
+#else
+ fd = mkostemp(tmplate,O_CLOEXEC);
+#endif
+ return fd;
+}
+
+tbnf_hidden int tbnf_tmpfile(void)
+{
+ int fd;
+ void * addr;
+ char tmplate[128];
+
+ /* try with __fs_tmpfile() */
+ if ((fd = tbnf_tmpfile_by_framework()) >= 0)
+ return fd;
+
+ /* try with O_TMPFILE */
+ if ((fd = tbnf_tmpfile_by_kernel()) >= 0)
+ return fd;
+
+ /* fallback to mk{o}stemp */
+ addr = tmplate;
+ memset(tmplate,0,sizeof(tmplate));
+ snprintf(tmplate,sizeof(tmplate),
+ "/tmp/"
+ ".treebnf.tmpfile"
+ ".time."PPRIX64
+ ".salt.%p"
+ ".pid.%d"
+ ".XXXXXXXXXXXX",
+ time(0),
+ addr,
+ getpid());
+
+ return tbnf_mkostemp(tmplate);
+}
diff --git a/src/internal/treebnf_tmpfile_impl.h b/src/internal/treebnf_tmpfile_impl.h
new file mode 100644
index 0000000..c295072
--- /dev/null
+++ b/src/internal/treebnf_tmpfile_impl.h
@@ -0,0 +1,6 @@
+#ifndef TREEBNF_TMPFILE_IMPL_H
+#define TREEBNF_TMPFILE_IMPL_H
+
+int tbnf_tmpfile(void);
+
+#endif
diff --git a/src/internal/treebnf_visibility_impl.h b/src/internal/treebnf_visibility_impl.h
new file mode 100644
index 0000000..9599010
--- /dev/null
+++ b/src/internal/treebnf_visibility_impl.h
@@ -0,0 +1,26 @@
+#ifndef TREEBNF_VISIBILITY_IMPL_H
+#define TREEBNF_VISIBILITY_IMPL_H
+
+/**********************************************************************/
+/* PE targets: __dllexport suffices for the purpose of exporting only */
+/* the desired subset of global symbols; this makes the visibility */
+/* attribute not only redundant, but also tricky if not properly */
+/* supported by the toolchain. */
+/* */
+/* When targeting Midipix, __PE__, __dllexport and __dllimport are */
+/* always defined by the toolchain. Otherwise, the absnece of these */
+/* macros has been detected by sofort's ccenv.sh during ./configure, */
+/* and they have accordingly been added to CFLAGS_OS. */
+/**********************************************************************/
+
+#ifdef __PE__
+#define tbnf_hidden
+#else
+#ifdef _ATTR_VISIBILITY_HIDDEN
+#define tbnf_hidden _ATTR_VISIBILITY_HIDDEN
+#else
+#define tbnf_hidden
+#endif
+#endif
+
+#endif
diff --git a/src/output/tbnf_output_error.c b/src/output/tbnf_output_error.c
new file mode 100644
index 0000000..d607e54
--- /dev/null
+++ b/src/output/tbnf_output_error.c
@@ -0,0 +1,192 @@
+/**************************************************************/
+/* treebnf: a tree oriented bnf library */
+/* Copyright (C) 2024 SysDeer Technologies, LLC */
+/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
+/**************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <treebnf/treebnf.h>
+
+#include "treebnf_driver_impl.h"
+#include "treebnf_dprintf_impl.h"
+
+static const char aclr_reset[] = "\x1b[0m";
+static const char aclr_bold[] = "\x1b[1m";
+
+static const char aclr_green[] = "\x1b[32m";
+static const char aclr_blue[] = "\x1b[34m";
+static const char aclr_magenta[] = "\x1b[35m";
+
+static const char * tbnf_output_error_header(const struct tbnf_error_info * erri)
+{
+ if (erri->eflags & TBNF_ERROR_CHILD)
+ return "exec error upon";
+
+ else if (erri->eflags & TBNF_ERROR_TOP_LEVEL)
+ return "error logged in";
+
+ else if (erri->eflags & TBNF_ERROR_NESTED)
+ return "< returned to >";
+
+ else
+ return "distorted state";
+}
+
+static const char * tbnf_output_strerror(
+ const struct tbnf_error_info * erri,
+ char (*errbuf)[256])
+{
+ if (erri->eflags & TBNF_ERROR_CUSTOM)
+ return "flow error: unexpected condition or other";
+
+ else if (erri->eflags & TBNF_ERROR_NESTED)
+ return "";
+
+ else if (erri->eflags & TBNF_ERROR_CHILD)
+ return "(see child process error messages)";
+
+ else if (erri->esyscode == ENOBUFS)
+ return "input error: string length exceeds buffer size";
+
+ else if ((erri->esyscode == ENOENT) && erri->eany)
+ return "path not found: ";
+
+ else
+ return strerror_r(erri->esyscode,*errbuf,sizeof(*errbuf))
+ ? "internal error: strerror_r(3) call failed"
+ : *errbuf;
+}
+
+static int tbnf_output_error_record_plain(
+ const struct tbnf_driver_ctx * dctx,
+ const struct tbnf_error_info * erri)
+{
+ char errbuf[256];
+
+ int fderr = tbnf_driver_fderr(dctx);
+ const char * errdesc = tbnf_output_strerror(erri,&errbuf);
+ const char * path;
+
+ path = ((erri->esyscode == ENOENT) && erri->eany)
+ ? erri->eany : "";
+
+ if (tbnf_dprintf(
+ fderr,
+ "%s: %s %s(), line %d%s%s%s.\n",
+ dctx->program,
+ tbnf_output_error_header(erri),
+ erri->efunction,
+ erri->eline,
+ strlen(errdesc) ? ": " : "",
+ errdesc,path) < 0)
+ return -1;
+
+ return 0;
+}
+
+static int tbnf_output_error_record_annotated(
+ const struct tbnf_driver_ctx * dctx,
+ const struct tbnf_error_info * erri)
+{
+ char errbuf[256];
+
+ int fderr = tbnf_driver_fderr(dctx);
+ const char * errdesc = tbnf_output_strerror(erri,&errbuf);
+ const char * path;
+
+ path = ((erri->esyscode == ENOENT) && erri->eany)
+ ? erri->eany : "";
+
+ if (tbnf_dprintf(
+ fderr,
+ "%s%s%s:%s %s%s%s %s%s%s()%s, %s%sline %d%s%s%s%s%s%s%s%s%s.\n",
+
+ aclr_bold,aclr_magenta,
+ dctx->program,
+ aclr_reset,
+
+ aclr_bold,
+ tbnf_output_error_header(erri),
+ aclr_reset,
+
+ aclr_bold,aclr_blue,
+ erri->efunction,
+ aclr_reset,
+
+ aclr_bold,aclr_green,
+ erri->eline,
+ aclr_reset,
+ strlen(errdesc) ? ": " : "",
+
+ aclr_bold,
+ errdesc,
+ aclr_reset,
+
+ aclr_bold,aclr_blue,
+ path,
+ aclr_reset) < 0)
+ return -1;
+
+ return 0;
+}
+
+int tbnf_output_error_record(
+ const struct tbnf_driver_ctx * dctx,
+ const struct tbnf_error_info * erri)
+{
+ int fderr = tbnf_driver_fderr(dctx);
+
+ if (dctx->cctx->drvflags & TBNF_DRIVER_ANNOTATE_NEVER)
+ return tbnf_output_error_record_plain(dctx,erri);
+
+ else if (dctx->cctx->drvflags & TBNF_DRIVER_ANNOTATE_ALWAYS)
+ return tbnf_output_error_record_annotated(dctx,erri);
+
+ else if (isatty(fderr))
+ return tbnf_output_error_record_annotated(dctx,erri);
+
+ else
+ return tbnf_output_error_record_plain(dctx,erri);
+}
+
+static int tbnf_output_error_vector_plain(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_error_info ** perr;
+
+ for (perr=dctx->errv; *perr; perr++)
+ if (tbnf_output_error_record_plain(dctx,*perr))
+ return -1;
+
+ return 0;
+}
+
+static int tbnf_output_error_vector_annotated(const struct tbnf_driver_ctx * dctx)
+{
+ struct tbnf_error_info ** perr;
+
+ for (perr=dctx->errv; *perr; perr++)
+ if (tbnf_output_error_record_annotated(dctx,*perr))
+ return -1;
+
+ return 0;
+}
+
+int tbnf_output_error_vector(const struct tbnf_driver_ctx * dctx)
+{
+ int fderr = tbnf_driver_fderr(dctx);
+
+ if (dctx->cctx->drvflags & TBNF_DRIVER_ANNOTATE_NEVER)
+ return tbnf_output_error_vector_plain(dctx);
+
+ else if (dctx->cctx->drvflags & TBNF_DRIVER_ANNOTATE_ALWAYS)
+ return tbnf_output_error_vector_annotated(dctx);
+
+ else if (isatty(fderr))
+ return tbnf_output_error_vector_annotated(dctx);
+
+ else
+ return tbnf_output_error_vector_plain(dctx);
+}
diff --git a/src/skin/tbnf_skin_default.c b/src/skin/tbnf_skin_default.c
new file mode 100644
index 0000000..219099a
--- /dev/null
+++ b/src/skin/tbnf_skin_default.c
@@ -0,0 +1,12 @@
+#include "treebnf_driver_impl.h"
+#include "argv/argv.h"
+
+const struct argv_option tbnf_default_options[] = {
+ {"version", 0,TAG_VERSION,ARGV_OPTARG_NONE,0,0,0,
+ "show version information"},
+
+ {"help", 0,TAG_HELP,ARGV_OPTARG_OPTIONAL,0,"short|long",0,
+ "show usage information [listing %s options only]"},
+
+ {0,0,0,0,0,0,0,0}
+};
diff --git a/src/treebnf.c b/src/treebnf.c
index 0b9862a..fa73ecc 100644
--- a/src/treebnf.c
+++ b/src/treebnf.c
@@ -4,12 +4,12 @@
/* Released under GPLv2 and GPLv3; see COPYING.TREEBNF. */
/**************************************************************/
+#include <treebnf/treebnf.h>
+
#define TBNF_UNUSED_PARAMETER(p) (void)p
int main(int argc, char ** argv, char ** envp)
{
TBNF_UNUSED_PARAMETER(argc);
- TBNF_UNUSED_PARAMETER(argv);
- TBNF_UNUSED_PARAMETER(envp);
- return 0;
+ return tbnf_main(argv,envp,0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 21:12:02 +0000