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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576/* SPDX-License-Identifier: GPL-2.0 */#ifndef __SUBCMD_UTIL_H#define __SUBCMD_UTIL_H
#include <stdarg.h>#include <stdlib.h>#include <stdio.h>#include <linux/compiler.h>
static inline void report(const char *prefix, const char *err, va_list params){ char msg[1024]; vsnprintf(msg, sizeof(msg), err, params); fprintf(stderr, " %s%s\n", prefix, msg);}
static __noreturn inline void die(const char *err, ...){ va_list params;
va_start(params, err); report(" Fatal: ", err, params); va_end(params); exit(128);}
#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
#define alloc_nr(x) (((x)+16)*3/2)
/* * Realloc the buffer pointed at by variable 'x' so that it can hold * at least 'nr' entries; the number of entries currently allocated * is 'alloc', using the standard growing factor alloc_nr() macro. * * DO NOT USE any expression with side-effect for 'x' or 'alloc'. */#define ALLOC_GROW(x, nr, alloc) \ do { \ if ((nr) > alloc) { \ if (alloc_nr(alloc) < (nr)) \ alloc = (nr); \ else \ alloc = alloc_nr(alloc); \ x = xrealloc((x), alloc * sizeof(*(x))); \ } \ } while(0)
static inline void *xrealloc(void *ptr, size_t size){ void *ret = realloc(ptr, size); if (!ret) die("Out of memory, realloc failed"); return ret;}
#define astrcatf(out, fmt, ...) \({ \ char *tmp = *(out); \ if (asprintf((out), "%s" fmt, tmp ?: "", ## __VA_ARGS__) == -1) \ die("asprintf failed"); \ free(tmp); \})
static inline void astrcat(char **out, const char *add){ char *tmp = *out;
if (asprintf(out, "%s%s", tmp ?: "", add) == -1) die("asprintf failed");
free(tmp);}
#endif /* __SUBCMD_UTIL_H */