diff options
Diffstat (limited to 'usage.c')
| -rw-r--r-- | usage.c | 34 |
1 files changed, 34 insertions, 0 deletions
@@ -4,6 +4,9 @@ * Copyright (C) Linus Torvalds, 2005 */ #include "git-compat-util.h" +#include "cache.h" + +static int dying; void vreportf(const char *prefix, const char *err, va_list params) { @@ -12,6 +15,18 @@ void vreportf(const char *prefix, const char *err, va_list params) fprintf(stderr, "%s%s\n", prefix, msg); } +void vwritef(int fd, const char *prefix, const char *err, va_list params) +{ + char msg[4096]; + int len = vsnprintf(msg, sizeof(msg), err, params); + if (len > sizeof(msg)) + len = sizeof(msg); + + write_in_full(fd, prefix, strlen(prefix)); + write_in_full(fd, msg, len); + write_in_full(fd, "\n", 1); +} + static NORETURN void usage_builtin(const char *err, va_list params) { vreportf("usage: ", err, params); @@ -46,6 +61,11 @@ void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list param die_routine = routine; } +void set_error_routine(void (*routine)(const char *err, va_list params)) +{ + error_routine = routine; +} + void NORETURN usagef(const char *err, ...) { va_list params; @@ -64,6 +84,12 @@ void NORETURN die(const char *err, ...) { va_list params; + if (dying) { + fputs("fatal: recursion detected in die handler\n", stderr); + exit(128); + } + dying = 1; + va_start(params, err); die_routine(err, params); va_end(params); @@ -76,6 +102,13 @@ void NORETURN die_errno(const char *fmt, ...) char str_error[256], *err; int i, j; + if (dying) { + fputs("fatal: recursion detected in die_errno handler\n", + stderr); + exit(128); + } + dying = 1; + err = strerror(errno); for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) { if ((str_error[j++] = err[i++]) != '%') @@ -97,6 +130,7 @@ void NORETURN die_errno(const char *fmt, ...) va_end(params); } +#undef error int error(const char *err, ...) { va_list params; |