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lib/kasprintf.c
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/* * linux/lib/kasprintf.c * * Copyright (C) 1991, 1992 Linus Torvalds */ #include <stdarg.h> |
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#include <linux/export.h> |
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#include <linux/slab.h> |
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#include <linux/types.h> #include <linux/string.h> /* Simplified asprintf. */ char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap) { unsigned int len; char *p; va_list aq; va_copy(aq, ap); len = vsnprintf(NULL, 0, fmt, aq); va_end(aq); |
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p = kmalloc_track_caller(len+1, gfp); |
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if (!p) return NULL; vsnprintf(p, len+1, fmt, ap); return p; } EXPORT_SYMBOL(kvasprintf); char *kasprintf(gfp_t gfp, const char *fmt, ...) { va_list ap; char *p; va_start(ap, fmt); p = kvasprintf(gfp, fmt, ap); va_end(ap); return p; } EXPORT_SYMBOL(kasprintf); |