| /* |
| * 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 = ".config.cmd"; |
| 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/linux/autoconf.h: $(deps_config)\n\n$(deps_config):\n"); |
| fclose(out); |
| rename("..config.tmp", name); |
| return 0; |
| } |
| |
| |
| /* Allocate initial growable sting */ |
| 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; |
| } |
| |