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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /scripts/kconfig/util.c | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'scripts/kconfig/util.c')
-rw-r--r-- | scripts/kconfig/util.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c new file mode 100644 index 000000000..29585394d --- /dev/null +++ b/scripts/kconfig/util.c @@ -0,0 +1,129 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> + * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> + */ + +#include <stdarg.h> +#include <stdlib.h> +#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 = xmalloc(sizeof(*file)); + memset(file, 0, sizeof(*file)); + file->name = xstrdup(name); + file->next = file_list; + file_list = file; + return file; +} + +/* Allocate initial growable string */ +struct gstr str_new(void) +{ + struct gstr gs; + gs.s = xmalloc(sizeof(char) * 64); + gs.len = 64; + gs.max_width = 0; + strcpy(gs.s, "\0"); + 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; + if (s) { + l = strlen(gs->s) + strlen(s) + 1; + if (l > gs->len) { + gs->s = xrealloc(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; +} + +void *xmalloc(size_t size) +{ + void *p = malloc(size); + if (p) + return p; + fprintf(stderr, "Out of memory.\n"); + exit(1); +} + +void *xcalloc(size_t nmemb, size_t size) +{ + void *p = calloc(nmemb, size); + if (p) + return p; + fprintf(stderr, "Out of memory.\n"); + exit(1); +} + +void *xrealloc(void *p, size_t size) +{ + p = realloc(p, size); + if (p) + return p; + fprintf(stderr, "Out of memory.\n"); + exit(1); +} + +char *xstrdup(const char *s) +{ + char *p; + + p = strdup(s); + if (p) + return p; + fprintf(stderr, "Out of memory.\n"); + exit(1); +} + +char *xstrndup(const char *s, size_t n) +{ + char *p; + + p = strndup(s, n); + if (p) + return p; + fprintf(stderr, "Out of memory.\n"); + exit(1); +} |