/* * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> * * Released under the terms of the GNU GPL v2.0. */ #include <string.h> #include "lkc.h" /* file already present in list? If not add it */ struct file *file_lookup(const char *name) { struct file *file; for (file = file_list; file; file = file->next) { if (!strcmp(name, file->name)) return file; } file = malloc(sizeof(*file)); memset(file, 0, sizeof(*file)); file->name = strdup(name); file->next = file_list; file_list = file; return file; } /* write a dependency file as used by kbuild to track dependencies */ int file_write_dep(const char *name) { struct file *file; FILE *out; if (!name) name = ".kconfig.d"; out = fopen("..config.tmp", "w"); if (!out) return 1; fprintf(out, "deps_config := \\\n"); for (file = file_list; file; file = file->next) { if (file->next) fprintf(out, "\t%s \\\n", file->name); else fprintf(out, "\t%s\n", file->name); } fprintf(out, "\n" ".config include/autoconf.h: $(deps_config)\n" "\n" "include/autoconf.h: .config\n" /* bbox */ "\n" "$(deps_config):\n"); fclose(out); rename("..config.tmp", name); return 0; } /* Allocate initial growable string */ struct gstr str_new(void) { struct gstr gs; gs.s = malloc(sizeof(char) * 64); gs.len = 16; strcpy(gs.s, "\0"); return gs; } /* Allocate and assign growable string */ struct gstr str_assign(const char *s) { struct gstr gs; gs.s = strdup(s); gs.len = strlen(s) + 1; return gs; } /* Free storage for growable string */ void str_free(struct gstr *gs) { if (gs->s) free(gs->s); gs->s = NULL; gs->len = 0; } /* Append to growable string */ void str_append(struct gstr *gs, const char *s) { size_t l = strlen(gs->s) + strlen(s) + 1; if (l > gs->len) { gs->s = realloc(gs->s, l); gs->len = l; } strcat(gs->s, s); } /* Append printf formatted string to growable string */ void str_printf(struct gstr *gs, const char *fmt, ...) { va_list ap; char s[10000]; /* big enough... */ va_start(ap, fmt); vsnprintf(s, sizeof(s), fmt, ap); str_append(gs, s); va_end(ap); } /* Retrieve value of growable string */ const char *str_get(struct gstr *gs) { return gs->s; }